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/cade18-smtinterpol/svcomp-DerefFreeMemtrack-32bit-Automizer_Camel.epf -i ../../../trunk/examples/svcomp/memsafety-ext2/length_test03_false-valid-memtrack.i -------------------------------------------------------------------------------- This is Ultimate 0.1.23-666feb3-m [2018-04-10 13:38:56,588 INFO L170 SettingsManager]: Resetting all preferences to default values... [2018-04-10 13:38:56,589 INFO L174 SettingsManager]: Resetting UltimateCore preferences to default values [2018-04-10 13:38:56,602 INFO L177 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2018-04-10 13:38:56,602 INFO L174 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2018-04-10 13:38:56,603 INFO L174 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2018-04-10 13:38:56,604 INFO L174 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2018-04-10 13:38:56,605 INFO L174 SettingsManager]: Resetting LassoRanker preferences to default values [2018-04-10 13:38:56,607 INFO L174 SettingsManager]: Resetting Reaching Definitions preferences to default values [2018-04-10 13:38:56,608 INFO L174 SettingsManager]: Resetting SyntaxChecker preferences to default values [2018-04-10 13:38:56,608 INFO L177 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2018-04-10 13:38:56,608 INFO L174 SettingsManager]: Resetting LTL2Aut preferences to default values [2018-04-10 13:38:56,609 INFO L174 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2018-04-10 13:38:56,610 INFO L174 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2018-04-10 13:38:56,610 INFO L174 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2018-04-10 13:38:56,612 INFO L174 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2018-04-10 13:38:56,614 INFO L174 SettingsManager]: Resetting CodeCheck preferences to default values [2018-04-10 13:38:56,615 INFO L174 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2018-04-10 13:38:56,616 INFO L174 SettingsManager]: Resetting RCFGBuilder preferences to default values [2018-04-10 13:38:56,617 INFO L174 SettingsManager]: Resetting TraceAbstraction preferences to default values [2018-04-10 13:38:56,619 INFO L177 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2018-04-10 13:38:56,619 INFO L177 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2018-04-10 13:38:56,619 INFO L174 SettingsManager]: Resetting IcfgTransformer preferences to default values [2018-04-10 13:38:56,620 INFO L174 SettingsManager]: Resetting Boogie Printer preferences to default values [2018-04-10 13:38:56,620 INFO L174 SettingsManager]: Resetting Witness Printer preferences to default values [2018-04-10 13:38:56,621 INFO L177 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2018-04-10 13:38:56,622 INFO L174 SettingsManager]: Resetting CDTParser preferences to default values [2018-04-10 13:38:56,622 INFO L174 SettingsManager]: Resetting PEA to Boogie preferences to default values [2018-04-10 13:38:56,623 INFO L177 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2018-04-10 13:38:56,623 INFO L174 SettingsManager]: Resetting Witness Parser preferences to default values [2018-04-10 13:38:56,623 INFO L181 SettingsManager]: Finished resetting all preferences to default values... [2018-04-10 13:38:56,623 INFO L98 SettingsManager]: Beginning loading settings from /home/ultimate/work/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/settings/cade18-smtinterpol/svcomp-DerefFreeMemtrack-32bit-Automizer_Camel.epf [2018-04-10 13:38:56,634 INFO L110 SettingsManager]: Loading preferences was successful [2018-04-10 13:38:56,634 INFO L112 SettingsManager]: Preferences different from defaults after loading the file: [2018-04-10 13:38:56,635 INFO L131 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2018-04-10 13:38:56,635 INFO L133 SettingsManager]: * Create parallel compositions if possible=false [2018-04-10 13:38:56,635 INFO L133 SettingsManager]: * Use SBE=true [2018-04-10 13:38:56,635 INFO L131 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2018-04-10 13:38:56,635 INFO L133 SettingsManager]: * sizeof long=4 [2018-04-10 13:38:56,636 INFO L133 SettingsManager]: * Check unreachability of error function in SV-COMP mode=false [2018-04-10 13:38:56,636 INFO L133 SettingsManager]: * Overapproximate operations on floating types=true [2018-04-10 13:38:56,636 INFO L133 SettingsManager]: * sizeof POINTER=4 [2018-04-10 13:38:56,636 INFO L133 SettingsManager]: * Check division by zero=IGNORE [2018-04-10 13:38:56,636 INFO L133 SettingsManager]: * Check for the main procedure if all allocated memory was freed=true [2018-04-10 13:38:56,636 INFO L133 SettingsManager]: * Bitprecise bitfields=true [2018-04-10 13:38:56,636 INFO L133 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2018-04-10 13:38:56,637 INFO L133 SettingsManager]: * sizeof long double=12 [2018-04-10 13:38:56,637 INFO L131 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2018-04-10 13:38:56,637 INFO L133 SettingsManager]: * Size of a code block=SequenceOfStatements [2018-04-10 13:38:56,637 INFO L133 SettingsManager]: * To the following directory=./dump/ [2018-04-10 13:38:56,637 INFO L133 SettingsManager]: * SMT solver=External_DefaultMode [2018-04-10 13:38:56,637 INFO L133 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2018-04-10 13:38:56,637 INFO L131 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2018-04-10 13:38:56,638 INFO L133 SettingsManager]: * Interpolant automaton=TWOTRACK [2018-04-10 13:38:56,638 INFO L133 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2018-04-10 13:38:56,638 INFO L133 SettingsManager]: * Trace refinement strategy=CAMEL [2018-04-10 13:38:56,665 INFO L81 nceAwareModelManager]: Repository-Root is: /tmp [2018-04-10 13:38:56,677 INFO L266 ainManager$Toolchain]: [Toolchain 1]: Parser(s) successfully (re)initialized [2018-04-10 13:38:56,680 INFO L222 ainManager$Toolchain]: [Toolchain 1]: Toolchain data selected. [2018-04-10 13:38:56,681 INFO L271 PluginConnector]: Initializing CDTParser... [2018-04-10 13:38:56,682 INFO L276 PluginConnector]: CDTParser initialized [2018-04-10 13:38:56,683 INFO L431 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /home/ultimate/work/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/svcomp/memsafety-ext2/length_test03_false-valid-memtrack.i [2018-04-10 13:38:56,963 INFO L225 CDTParser]: Created temporary CDT project at /home/ultimate/work/ultimate/releaseScripts/default/UAutomizer-linux/data/FLAG7f7b2b915 [2018-04-10 13:38:57,109 INFO L287 CDTParser]: IsIndexed: true [2018-04-10 13:38:57,109 INFO L288 CDTParser]: Found 1 translation units. [2018-04-10 13:38:57,109 INFO L168 CDTParser]: Scanning length_test03_false-valid-memtrack.i [2018-04-10 13:38:57,116 INFO L210 ultiparseSymbolTable]: Include resolver: [2018-04-10 13:38:57,117 INFO L215 ultiparseSymbolTable]: [2018-04-10 13:38:57,117 INFO L218 ultiparseSymbolTable]: Function table: [2018-04-10 13:38:57,117 INFO L221 ultiparseSymbolTable]: Function definition of __U_MULTI_flength_test___false_valid_memtrack_i____bswap_32 ('__bswap_32') in length_test03_false-valid-memtrack.i [2018-04-10 13:38:57,117 INFO L221 ultiparseSymbolTable]: Function definition of __U_MULTI_flength_test___false_valid_memtrack_i____bswap_64 ('__bswap_64') in length_test03_false-valid-memtrack.i [2018-04-10 13:38:57,117 INFO L221 ultiparseSymbolTable]: Function definition of __U_MULTI_flength_test___false_valid_memtrack_i__append ('append') in length_test03_false-valid-memtrack.i [2018-04-10 13:38:57,117 INFO L221 ultiparseSymbolTable]: Function definition of null ('main') in length_test03_false-valid-memtrack.i [2018-04-10 13:38:57,117 INFO L227 ultiparseSymbolTable]: Global variable table: [2018-04-10 13:38:57,118 INFO L230 ultiparseSymbolTable]: Global variable declaration of __U_MULTI_flength_test___false_valid_memtrack_i__gid_t in length_test03_false-valid-memtrack.i [2018-04-10 13:38:57,118 INFO L230 ultiparseSymbolTable]: Global variable declaration of __U_MULTI_flength_test___false_valid_memtrack_i__off_t in length_test03_false-valid-memtrack.i [2018-04-10 13:38:57,118 INFO L230 ultiparseSymbolTable]: Global variable declaration of __U_MULTI_flength_test___false_valid_memtrack_i____blkcnt64_t in length_test03_false-valid-memtrack.i [2018-04-10 13:38:57,118 INFO L230 ultiparseSymbolTable]: Global variable declaration of __U_MULTI_flength_test___false_valid_memtrack_i__ldiv_t in length_test03_false-valid-memtrack.i [2018-04-10 13:38:57,118 INFO L230 ultiparseSymbolTable]: Global variable declaration of __U_MULTI_flength_test___false_valid_memtrack_i____nlink_t in length_test03_false-valid-memtrack.i [2018-04-10 13:38:57,118 INFO L230 ultiparseSymbolTable]: Global variable declaration of __U_MULTI_flength_test___false_valid_memtrack_i__u_short in length_test03_false-valid-memtrack.i [2018-04-10 13:38:57,118 INFO L230 ultiparseSymbolTable]: Global variable declaration of __U_MULTI_flength_test___false_valid_memtrack_i____int8_t in length_test03_false-valid-memtrack.i [2018-04-10 13:38:57,118 INFO L230 ultiparseSymbolTable]: Global variable declaration of __U_MULTI_flength_test___false_valid_memtrack_i__u_int64_t in length_test03_false-valid-memtrack.i [2018-04-10 13:38:57,118 INFO L230 ultiparseSymbolTable]: Global variable declaration of __U_MULTI_flength_test___false_valid_memtrack_i____mode_t in length_test03_false-valid-memtrack.i [2018-04-10 13:38:57,119 INFO L230 ultiparseSymbolTable]: Global variable declaration of __U_MULTI_flength_test___false_valid_memtrack_i____timer_t in length_test03_false-valid-memtrack.i [2018-04-10 13:38:57,119 INFO L230 ultiparseSymbolTable]: Global variable declaration of __U_MULTI_flength_test___false_valid_memtrack_i____uid_t in length_test03_false-valid-memtrack.i [2018-04-10 13:38:57,119 INFO L230 ultiparseSymbolTable]: Global variable declaration of __U_MULTI_flength_test___false_valid_memtrack_i__ssize_t in length_test03_false-valid-memtrack.i [2018-04-10 13:38:57,119 INFO L230 ultiparseSymbolTable]: Global variable declaration of __U_MULTI_flength_test___false_valid_memtrack_i____sig_atomic_t in length_test03_false-valid-memtrack.i [2018-04-10 13:38:57,119 INFO L230 ultiparseSymbolTable]: Global variable declaration of __U_MULTI_flength_test___false_valid_memtrack_i__key_t in length_test03_false-valid-memtrack.i [2018-04-10 13:38:57,119 INFO L230 ultiparseSymbolTable]: Global variable declaration of __U_MULTI_flength_test___false_valid_memtrack_i____ssize_t in length_test03_false-valid-memtrack.i [2018-04-10 13:38:57,119 INFO L230 ultiparseSymbolTable]: Global variable declaration of __U_MULTI_flength_test___false_valid_memtrack_i__nlink_t in length_test03_false-valid-memtrack.i [2018-04-10 13:38:57,119 INFO L230 ultiparseSymbolTable]: Global variable declaration of __U_MULTI_flength_test___false_valid_memtrack_i__fsfilcnt_t in length_test03_false-valid-memtrack.i [2018-04-10 13:38:57,119 INFO L230 ultiparseSymbolTable]: Global variable declaration of __U_MULTI_flength_test___false_valid_memtrack_i__timer_t in length_test03_false-valid-memtrack.i [2018-04-10 13:38:57,120 INFO L230 ultiparseSymbolTable]: Global variable declaration of __U_MULTI_flength_test___false_valid_memtrack_i__mode_t in length_test03_false-valid-memtrack.i [2018-04-10 13:38:57,120 INFO L230 ultiparseSymbolTable]: Global variable declaration of __U_MULTI_flength_test___false_valid_memtrack_i____fsword_t in length_test03_false-valid-memtrack.i [2018-04-10 13:38:57,120 INFO L230 ultiparseSymbolTable]: Global variable declaration of __U_MULTI_flength_test___false_valid_memtrack_i____u_short in length_test03_false-valid-memtrack.i [2018-04-10 13:38:57,120 INFO L230 ultiparseSymbolTable]: Global variable declaration of __U_MULTI_flength_test___false_valid_memtrack_i__int32_t in length_test03_false-valid-memtrack.i [2018-04-10 13:38:57,120 INFO L230 ultiparseSymbolTable]: Global variable declaration of __U_MULTI_flength_test___false_valid_memtrack_i____uint64_t in length_test03_false-valid-memtrack.i [2018-04-10 13:38:57,120 INFO L230 ultiparseSymbolTable]: Global variable declaration of __U_MULTI_flength_test___false_valid_memtrack_i__pid_t in length_test03_false-valid-memtrack.i [2018-04-10 13:38:57,120 INFO L230 ultiparseSymbolTable]: Global variable declaration of __U_MULTI_flength_test___false_valid_memtrack_i____clockid_t in length_test03_false-valid-memtrack.i [2018-04-10 13:38:57,120 INFO L230 ultiparseSymbolTable]: Global variable declaration of __U_MULTI_flength_test___false_valid_memtrack_i__u_int8_t in length_test03_false-valid-memtrack.i [2018-04-10 13:38:57,120 INFO L230 ultiparseSymbolTable]: Global variable declaration of __U_MULTI_flength_test___false_valid_memtrack_i____suseconds_t in length_test03_false-valid-memtrack.i [2018-04-10 13:38:57,120 INFO L230 ultiparseSymbolTable]: Global variable declaration of __U_MULTI_flength_test___false_valid_memtrack_i__clockid_t in length_test03_false-valid-memtrack.i [2018-04-10 13:38:57,121 INFO L230 ultiparseSymbolTable]: Global variable declaration of __U_MULTI_flength_test___false_valid_memtrack_i____pthread_slist_t in length_test03_false-valid-memtrack.i [2018-04-10 13:38:57,121 INFO L230 ultiparseSymbolTable]: Global variable declaration of __U_MULTI_flength_test___false_valid_memtrack_i__quad_t in length_test03_false-valid-memtrack.i [2018-04-10 13:38:57,121 INFO L230 ultiparseSymbolTable]: Global variable declaration of __U_MULTI_flength_test___false_valid_memtrack_i__caddr_t in length_test03_false-valid-memtrack.i [2018-04-10 13:38:57,121 INFO L230 ultiparseSymbolTable]: Global variable declaration of __U_MULTI_flength_test___false_valid_memtrack_i____fd_mask in length_test03_false-valid-memtrack.i [2018-04-10 13:38:57,121 INFO L230 ultiparseSymbolTable]: Global variable declaration of __U_MULTI_flength_test___false_valid_memtrack_i____id_t in length_test03_false-valid-memtrack.i [2018-04-10 13:38:57,121 INFO L230 ultiparseSymbolTable]: Global variable declaration of __U_MULTI_flength_test___false_valid_memtrack_i__u_int in length_test03_false-valid-memtrack.i [2018-04-10 13:38:57,121 INFO L230 ultiparseSymbolTable]: Global variable declaration of __U_MULTI_flength_test___false_valid_memtrack_i__u_int16_t in length_test03_false-valid-memtrack.i [2018-04-10 13:38:57,121 INFO L230 ultiparseSymbolTable]: Global variable declaration of __U_MULTI_flength_test___false_valid_memtrack_i____syscall_ulong_t in length_test03_false-valid-memtrack.i [2018-04-10 13:38:57,121 INFO L230 ultiparseSymbolTable]: Global variable declaration of __U_MULTI_flength_test___false_valid_memtrack_i__pthread_cond_t in length_test03_false-valid-memtrack.i [2018-04-10 13:38:57,121 INFO L230 ultiparseSymbolTable]: Global variable declaration of __U_MULTI_flength_test___false_valid_memtrack_i____int32_t in length_test03_false-valid-memtrack.i [2018-04-10 13:38:57,122 INFO L230 ultiparseSymbolTable]: Global variable declaration of __U_MULTI_flength_test___false_valid_memtrack_i__pthread_t in length_test03_false-valid-memtrack.i [2018-04-10 13:38:57,122 INFO L230 ultiparseSymbolTable]: Global variable declaration of __U_MULTI_flength_test___false_valid_memtrack_i____uint32_t in length_test03_false-valid-memtrack.i [2018-04-10 13:38:57,122 INFO L230 ultiparseSymbolTable]: Global variable declaration of __U_MULTI_flength_test___false_valid_memtrack_i__div_t in length_test03_false-valid-memtrack.i [2018-04-10 13:38:57,122 INFO L230 ultiparseSymbolTable]: Global variable declaration of __U_MULTI_flength_test___false_valid_memtrack_i__blksize_t in length_test03_false-valid-memtrack.i [2018-04-10 13:38:57,122 INFO L230 ultiparseSymbolTable]: Global variable declaration of __U_MULTI_flength_test___false_valid_memtrack_i__pthread_spinlock_t in length_test03_false-valid-memtrack.i [2018-04-10 13:38:57,122 INFO L230 ultiparseSymbolTable]: Global variable declaration of __U_MULTI_flength_test___false_valid_memtrack_i__fsblkcnt_t in length_test03_false-valid-memtrack.i [2018-04-10 13:38:57,122 INFO L230 ultiparseSymbolTable]: Global variable declaration of __U_MULTI_flength_test___false_valid_memtrack_i__size_t in length_test03_false-valid-memtrack.i [2018-04-10 13:38:57,122 INFO L230 ultiparseSymbolTable]: Global variable declaration of __U_MULTI_flength_test___false_valid_memtrack_i____pid_t in length_test03_false-valid-memtrack.i [2018-04-10 13:38:57,122 INFO L230 ultiparseSymbolTable]: Global variable declaration of __U_MULTI_flength_test___false_valid_memtrack_i__pthread_once_t in length_test03_false-valid-memtrack.i [2018-04-10 13:38:57,122 INFO L230 ultiparseSymbolTable]: Global variable declaration of __U_MULTI_flength_test___false_valid_memtrack_i____u_quad_t in length_test03_false-valid-memtrack.i [2018-04-10 13:38:57,123 INFO L230 ultiparseSymbolTable]: Global variable declaration of __U_MULTI_flength_test___false_valid_memtrack_i____intptr_t in length_test03_false-valid-memtrack.i [2018-04-10 13:38:57,123 INFO L230 ultiparseSymbolTable]: Global variable declaration of __U_MULTI_flength_test___false_valid_memtrack_i__pthread_mutexattr_t in length_test03_false-valid-memtrack.i [2018-04-10 13:38:57,123 INFO L230 ultiparseSymbolTable]: Global variable declaration of __U_MULTI_flength_test___false_valid_memtrack_i____u_char in length_test03_false-valid-memtrack.i [2018-04-10 13:38:57,123 INFO L230 ultiparseSymbolTable]: Global variable declaration of __U_MULTI_flength_test___false_valid_memtrack_i____off64_t in length_test03_false-valid-memtrack.i [2018-04-10 13:38:57,123 INFO L230 ultiparseSymbolTable]: Global variable declaration of __U_MULTI_flength_test___false_valid_memtrack_i____quad_t in length_test03_false-valid-memtrack.i [2018-04-10 13:38:57,123 INFO L230 ultiparseSymbolTable]: Global variable declaration of __U_MULTI_flength_test___false_valid_memtrack_i____fsblkcnt64_t in length_test03_false-valid-memtrack.i [2018-04-10 13:38:57,123 INFO L230 ultiparseSymbolTable]: Global variable declaration of __U_MULTI_flength_test___false_valid_memtrack_i____socklen_t in length_test03_false-valid-memtrack.i [2018-04-10 13:38:57,123 INFO L230 ultiparseSymbolTable]: Global variable declaration of __U_MULTI_flength_test___false_valid_memtrack_i__lldiv_t in length_test03_false-valid-memtrack.i [2018-04-10 13:38:57,123 INFO L230 ultiparseSymbolTable]: Global variable declaration of __U_MULTI_flength_test___false_valid_memtrack_i__uid_t in length_test03_false-valid-memtrack.i [2018-04-10 13:38:57,123 INFO L230 ultiparseSymbolTable]: Global variable declaration of __U_MULTI_flength_test___false_valid_memtrack_i__int16_t in length_test03_false-valid-memtrack.i [2018-04-10 13:38:57,124 INFO L230 ultiparseSymbolTable]: Global variable declaration of __U_MULTI_flength_test___false_valid_memtrack_i__pthread_barrier_t in length_test03_false-valid-memtrack.i [2018-04-10 13:38:57,124 INFO L230 ultiparseSymbolTable]: Global variable declaration of __U_MULTI_flength_test___false_valid_memtrack_i__pthread_attr_t in length_test03_false-valid-memtrack.i [2018-04-10 13:38:57,124 INFO L230 ultiparseSymbolTable]: Global variable declaration of __U_MULTI_flength_test___false_valid_memtrack_i__wchar_t in length_test03_false-valid-memtrack.i [2018-04-10 13:38:57,124 INFO L230 ultiparseSymbolTable]: Global variable declaration of __U_MULTI_flength_test___false_valid_memtrack_i____rlim_t in length_test03_false-valid-memtrack.i [2018-04-10 13:38:57,124 INFO L230 ultiparseSymbolTable]: Global variable declaration of __U_MULTI_flength_test___false_valid_memtrack_i____int16_t in length_test03_false-valid-memtrack.i [2018-04-10 13:38:57,124 INFO L230 ultiparseSymbolTable]: Global variable declaration of __U_MULTI_flength_test___false_valid_memtrack_i__pthread_rwlockattr_t in length_test03_false-valid-memtrack.i [2018-04-10 13:38:57,124 INFO L230 ultiparseSymbolTable]: Global variable declaration of __U_MULTI_flength_test___false_valid_memtrack_i__u_char in length_test03_false-valid-memtrack.i [2018-04-10 13:38:57,124 INFO L230 ultiparseSymbolTable]: Global variable declaration of __U_MULTI_flength_test___false_valid_memtrack_i__daddr_t in length_test03_false-valid-memtrack.i [2018-04-10 13:38:57,124 INFO L230 ultiparseSymbolTable]: Global variable declaration of __U_MULTI_flength_test___false_valid_memtrack_i__blkcnt_t in length_test03_false-valid-memtrack.i [2018-04-10 13:38:57,124 INFO L230 ultiparseSymbolTable]: Global variable declaration of __U_MULTI_flength_test___false_valid_memtrack_i__sigset_t in length_test03_false-valid-memtrack.i [2018-04-10 13:38:57,124 INFO L230 ultiparseSymbolTable]: Global variable declaration of __U_MULTI_flength_test___false_valid_memtrack_i____uint16_t in length_test03_false-valid-memtrack.i [2018-04-10 13:38:57,124 INFO L230 ultiparseSymbolTable]: Global variable declaration of __U_MULTI_flength_test___false_valid_memtrack_i____u_long in length_test03_false-valid-memtrack.i [2018-04-10 13:38:57,125 INFO L230 ultiparseSymbolTable]: Global variable declaration of __U_MULTI_flength_test___false_valid_memtrack_i____gid_t in length_test03_false-valid-memtrack.i [2018-04-10 13:38:57,125 INFO L230 ultiparseSymbolTable]: Global variable declaration of __U_MULTI_flength_test___false_valid_memtrack_i____ino_t in length_test03_false-valid-memtrack.i [2018-04-10 13:38:57,125 INFO L230 ultiparseSymbolTable]: Global variable declaration of __U_MULTI_flength_test___false_valid_memtrack_i____loff_t in length_test03_false-valid-memtrack.i [2018-04-10 13:38:57,125 INFO L230 ultiparseSymbolTable]: Global variable declaration of __U_MULTI_flength_test___false_valid_memtrack_i____ino64_t in length_test03_false-valid-memtrack.i [2018-04-10 13:38:57,125 INFO L230 ultiparseSymbolTable]: Global variable declaration of __U_MULTI_flength_test___false_valid_memtrack_i____sigset_t in length_test03_false-valid-memtrack.i [2018-04-10 13:38:57,125 INFO L230 ultiparseSymbolTable]: Global variable declaration of __U_MULTI_flength_test___false_valid_memtrack_i__u_int32_t in length_test03_false-valid-memtrack.i [2018-04-10 13:38:57,125 INFO L230 ultiparseSymbolTable]: Global variable declaration of __U_MULTI_flength_test___false_valid_memtrack_i____fsid_t in length_test03_false-valid-memtrack.i [2018-04-10 13:38:57,125 INFO L230 ultiparseSymbolTable]: Global variable declaration of __U_MULTI_flength_test___false_valid_memtrack_i____dev_t in length_test03_false-valid-memtrack.i [2018-04-10 13:38:57,125 INFO L230 ultiparseSymbolTable]: Global variable declaration of __U_MULTI_flength_test___false_valid_memtrack_i__ulong in length_test03_false-valid-memtrack.i [2018-04-10 13:38:57,125 INFO L230 ultiparseSymbolTable]: Global variable declaration of __U_MULTI_flength_test___false_valid_memtrack_i__u_long in length_test03_false-valid-memtrack.i [2018-04-10 13:38:57,125 INFO L230 ultiparseSymbolTable]: Global variable declaration of __U_MULTI_flength_test___false_valid_memtrack_i__suseconds_t in length_test03_false-valid-memtrack.i [2018-04-10 13:38:57,125 INFO L230 ultiparseSymbolTable]: Global variable declaration of __U_MULTI_flength_test___false_valid_memtrack_i__fd_mask in length_test03_false-valid-memtrack.i [2018-04-10 13:38:57,126 INFO L230 ultiparseSymbolTable]: Global variable declaration of __U_MULTI_flength_test___false_valid_memtrack_i__clock_t in length_test03_false-valid-memtrack.i [2018-04-10 13:38:57,126 INFO L230 ultiparseSymbolTable]: Global variable declaration of __U_MULTI_flength_test___false_valid_memtrack_i____caddr_t in length_test03_false-valid-memtrack.i [2018-04-10 13:38:57,126 INFO L230 ultiparseSymbolTable]: Global variable declaration of __U_MULTI_flength_test___false_valid_memtrack_i____off_t in length_test03_false-valid-memtrack.i [2018-04-10 13:38:57,126 INFO L230 ultiparseSymbolTable]: Global variable declaration of __U_MULTI_flength_test___false_valid_memtrack_i__fd_set in length_test03_false-valid-memtrack.i [2018-04-10 13:38:57,126 INFO L230 ultiparseSymbolTable]: Global variable declaration of __U_MULTI_flength_test___false_valid_memtrack_i__dev_t in length_test03_false-valid-memtrack.i [2018-04-10 13:38:57,126 INFO L230 ultiparseSymbolTable]: Global variable declaration of __U_MULTI_flength_test___false_valid_memtrack_i____rlim64_t in length_test03_false-valid-memtrack.i [2018-04-10 13:38:57,126 INFO L230 ultiparseSymbolTable]: Global variable declaration of __U_MULTI_flength_test___false_valid_memtrack_i____key_t in length_test03_false-valid-memtrack.i [2018-04-10 13:38:57,126 INFO L230 ultiparseSymbolTable]: Global variable declaration of __U_MULTI_flength_test___false_valid_memtrack_i__loff_t in length_test03_false-valid-memtrack.i [2018-04-10 13:38:57,126 INFO L230 ultiparseSymbolTable]: Global variable declaration of __U_MULTI_flength_test___false_valid_memtrack_i__uint in length_test03_false-valid-memtrack.i [2018-04-10 13:38:57,126 INFO L230 ultiparseSymbolTable]: Global variable declaration of __U_MULTI_flength_test___false_valid_memtrack_i____uint8_t in length_test03_false-valid-memtrack.i [2018-04-10 13:38:57,126 INFO L230 ultiparseSymbolTable]: Global variable declaration of __U_MULTI_flength_test___false_valid_memtrack_i__time_t in length_test03_false-valid-memtrack.i [2018-04-10 13:38:57,126 INFO L230 ultiparseSymbolTable]: Global variable declaration of __U_MULTI_flength_test___false_valid_memtrack_i__pthread_rwlock_t in length_test03_false-valid-memtrack.i [2018-04-10 13:38:57,126 INFO L230 ultiparseSymbolTable]: Global variable declaration of __U_MULTI_flength_test___false_valid_memtrack_i____u_int in length_test03_false-valid-memtrack.i [2018-04-10 13:38:57,127 INFO L230 ultiparseSymbolTable]: Global variable declaration of __U_MULTI_flength_test___false_valid_memtrack_i__fsid_t in length_test03_false-valid-memtrack.i [2018-04-10 13:38:57,127 INFO L230 ultiparseSymbolTable]: Global variable declaration of __U_MULTI_flength_test___false_valid_memtrack_i____qaddr_t in length_test03_false-valid-memtrack.i [2018-04-10 13:38:57,127 INFO L230 ultiparseSymbolTable]: Global variable declaration of __U_MULTI_flength_test___false_valid_memtrack_i____blkcnt_t in length_test03_false-valid-memtrack.i [2018-04-10 13:38:57,127 INFO L230 ultiparseSymbolTable]: Global variable declaration of __U_MULTI_flength_test___false_valid_memtrack_i____clock_t in length_test03_false-valid-memtrack.i [2018-04-10 13:38:57,127 INFO L230 ultiparseSymbolTable]: Global variable declaration of __U_MULTI_flength_test___false_valid_memtrack_i____daddr_t in length_test03_false-valid-memtrack.i [2018-04-10 13:38:57,127 INFO L230 ultiparseSymbolTable]: Global variable declaration of __U_MULTI_flength_test___false_valid_memtrack_i__id_t in length_test03_false-valid-memtrack.i [2018-04-10 13:38:57,127 INFO L230 ultiparseSymbolTable]: Global variable declaration of __U_MULTI_flength_test___false_valid_memtrack_i__int64_t in length_test03_false-valid-memtrack.i [2018-04-10 13:38:57,127 INFO L230 ultiparseSymbolTable]: Global variable declaration of __U_MULTI_flength_test___false_valid_memtrack_i____blksize_t in length_test03_false-valid-memtrack.i [2018-04-10 13:38:57,127 INFO L230 ultiparseSymbolTable]: Global variable declaration of __U_MULTI_flength_test___false_valid_memtrack_i__pthread_condattr_t in length_test03_false-valid-memtrack.i [2018-04-10 13:38:57,127 INFO L230 ultiparseSymbolTable]: Global variable declaration of __U_MULTI_flength_test___false_valid_memtrack_i__ushort in length_test03_false-valid-memtrack.i [2018-04-10 13:38:57,127 INFO L230 ultiparseSymbolTable]: Global variable declaration of __U_MULTI_flength_test___false_valid_memtrack_i____syscall_slong_t in length_test03_false-valid-memtrack.i [2018-04-10 13:38:57,127 INFO L230 ultiparseSymbolTable]: Global variable declaration of __U_MULTI_flength_test___false_valid_memtrack_i__u_quad_t in length_test03_false-valid-memtrack.i [2018-04-10 13:38:57,127 INFO L230 ultiparseSymbolTable]: Global variable declaration of __U_MULTI_flength_test___false_valid_memtrack_i____fsfilcnt_t in length_test03_false-valid-memtrack.i [2018-04-10 13:38:57,127 INFO L230 ultiparseSymbolTable]: Global variable declaration of __U_MULTI_flength_test___false_valid_memtrack_i____time_t in length_test03_false-valid-memtrack.i [2018-04-10 13:38:57,127 INFO L230 ultiparseSymbolTable]: Global variable declaration of __U_MULTI_flength_test___false_valid_memtrack_i__int8_t in length_test03_false-valid-memtrack.i [2018-04-10 13:38:57,127 INFO L230 ultiparseSymbolTable]: Global variable declaration of __U_MULTI_flength_test___false_valid_memtrack_i__pthread_key_t in length_test03_false-valid-memtrack.i [2018-04-10 13:38:57,127 INFO L230 ultiparseSymbolTable]: Global variable declaration of __U_MULTI_flength_test___false_valid_memtrack_i____fsblkcnt_t in length_test03_false-valid-memtrack.i [2018-04-10 13:38:57,127 INFO L230 ultiparseSymbolTable]: Global variable declaration of __U_MULTI_flength_test___false_valid_memtrack_i__register_t in length_test03_false-valid-memtrack.i [2018-04-10 13:38:57,127 INFO L230 ultiparseSymbolTable]: Global variable declaration of __U_MULTI_flength_test___false_valid_memtrack_i____int64_t in length_test03_false-valid-memtrack.i [2018-04-10 13:38:57,127 INFO L230 ultiparseSymbolTable]: Global variable declaration of __U_MULTI_flength_test___false_valid_memtrack_i__pthread_barrierattr_t in length_test03_false-valid-memtrack.i [2018-04-10 13:38:57,127 INFO L230 ultiparseSymbolTable]: Global variable declaration of __U_MULTI_flength_test___false_valid_memtrack_i____fsfilcnt64_t in length_test03_false-valid-memtrack.i [2018-04-10 13:38:57,128 INFO L230 ultiparseSymbolTable]: Global variable declaration of __U_MULTI_flength_test___false_valid_memtrack_i__pthread_mutex_t in length_test03_false-valid-memtrack.i [2018-04-10 13:38:57,128 INFO L230 ultiparseSymbolTable]: Global variable declaration of __U_MULTI_flength_test___false_valid_memtrack_i__ino_t in length_test03_false-valid-memtrack.i [2018-04-10 13:38:57,128 INFO L230 ultiparseSymbolTable]: Global variable declaration of __U_MULTI_flength_test___false_valid_memtrack_i____useconds_t in length_test03_false-valid-memtrack.i [2018-04-10 13:38:57,140 INFO L330 CDTParser]: Deleted temporary CDT project at /home/ultimate/work/ultimate/releaseScripts/default/UAutomizer-linux/data/FLAG7f7b2b915 [2018-04-10 13:38:57,144 INFO L304 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2018-04-10 13:38:57,145 INFO L131 ToolchainWalker]: Walking toolchain with 4 elements. [2018-04-10 13:38:57,145 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2018-04-10 13:38:57,145 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2018-04-10 13:38:57,149 INFO L276 PluginConnector]: CACSL2BoogieTranslator initialized [2018-04-10 13:38:57,150 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 10.04 01:38:57" (1/1) ... [2018-04-10 13:38:57,152 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@142a77f3 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 10.04 01:38:57, skipping insertion in model container [2018-04-10 13:38:57,152 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 10.04 01:38:57" (1/1) ... [2018-04-10 13:38:57,164 INFO L167 Dispatcher]: Using SV-COMP mode [2018-04-10 13:38:57,192 INFO L167 Dispatcher]: Using SV-COMP mode [2018-04-10 13:38:57,324 INFO L175 PostProcessor]: Settings: Checked method=main [2018-04-10 13:38:57,360 INFO L175 PostProcessor]: Settings: Checked method=main [2018-04-10 13:38:57,366 INFO L100 SccComputation]: Graph consists of 0 InCaSumBalls and 119 non ball SCCs. Number of states in SCCs 119. [2018-04-10 13:38:57,409 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 10.04 01:38:57 WrapperNode [2018-04-10 13:38:57,409 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2018-04-10 13:38:57,410 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2018-04-10 13:38:57,410 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2018-04-10 13:38:57,410 INFO L276 PluginConnector]: Boogie Preprocessor initialized [2018-04-10 13:38:57,424 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 10.04 01:38:57" (1/1) ... [2018-04-10 13:38:57,424 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 10.04 01:38:57" (1/1) ... [2018-04-10 13:38:57,437 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 10.04 01:38:57" (1/1) ... [2018-04-10 13:38:57,437 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 10.04 01:38:57" (1/1) ... [2018-04-10 13:38:57,446 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 10.04 01:38:57" (1/1) ... [2018-04-10 13:38:57,450 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 10.04 01:38:57" (1/1) ... [2018-04-10 13:38:57,452 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 10.04 01:38:57" (1/1) ... [2018-04-10 13:38:57,454 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2018-04-10 13:38:57,455 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2018-04-10 13:38:57,455 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2018-04-10 13:38:57,455 INFO L276 PluginConnector]: RCFGBuilder initialized [2018-04-10 13:38:57,455 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 10.04 01:38:57" (1/1) ... No working directory specified, using /home/ultimate/work/ultimate/releaseScripts/default/UAutomizer-linux/z3 Starting monitored process 1 with z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 1 with z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2018-04-10 13:38:57,534 INFO L136 BoogieDeclarations]: Found implementation of procedure ULTIMATE.init [2018-04-10 13:38:57,534 INFO L136 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2018-04-10 13:38:57,534 INFO L136 BoogieDeclarations]: Found implementation of procedure __U_MULTI_flength_test___false_valid_memtrack_i____bswap_32 [2018-04-10 13:38:57,534 INFO L136 BoogieDeclarations]: Found implementation of procedure __U_MULTI_flength_test___false_valid_memtrack_i____bswap_64 [2018-04-10 13:38:57,534 INFO L136 BoogieDeclarations]: Found implementation of procedure __U_MULTI_flength_test___false_valid_memtrack_i__append [2018-04-10 13:38:57,534 INFO L136 BoogieDeclarations]: Found implementation of procedure main [2018-04-10 13:38:57,535 INFO L128 BoogieDeclarations]: Found specification of procedure __VERIFIER_error [2018-04-10 13:38:57,535 INFO L128 BoogieDeclarations]: Found specification of procedure __ctype_get_mb_cur_max [2018-04-10 13:38:57,535 INFO L128 BoogieDeclarations]: Found specification of procedure atof [2018-04-10 13:38:57,535 INFO L128 BoogieDeclarations]: Found specification of procedure atoi [2018-04-10 13:38:57,535 INFO L128 BoogieDeclarations]: Found specification of procedure atol [2018-04-10 13:38:57,535 INFO L128 BoogieDeclarations]: Found specification of procedure atoll [2018-04-10 13:38:57,535 INFO L128 BoogieDeclarations]: Found specification of procedure strtod [2018-04-10 13:38:57,539 INFO L128 BoogieDeclarations]: Found specification of procedure strtof [2018-04-10 13:38:57,539 INFO L128 BoogieDeclarations]: Found specification of procedure strtold [2018-04-10 13:38:57,539 INFO L128 BoogieDeclarations]: Found specification of procedure strtol [2018-04-10 13:38:57,539 INFO L128 BoogieDeclarations]: Found specification of procedure strtoul [2018-04-10 13:38:57,539 INFO L128 BoogieDeclarations]: Found specification of procedure strtoq [2018-04-10 13:38:57,539 INFO L128 BoogieDeclarations]: Found specification of procedure strtouq [2018-04-10 13:38:57,539 INFO L128 BoogieDeclarations]: Found specification of procedure strtoll [2018-04-10 13:38:57,539 INFO L128 BoogieDeclarations]: Found specification of procedure strtoull [2018-04-10 13:38:57,539 INFO L128 BoogieDeclarations]: Found specification of procedure l64a [2018-04-10 13:38:57,540 INFO L128 BoogieDeclarations]: Found specification of procedure a64l [2018-04-10 13:38:57,540 INFO L128 BoogieDeclarations]: Found specification of procedure __U_MULTI_flength_test___false_valid_memtrack_i____bswap_32 [2018-04-10 13:38:57,540 INFO L128 BoogieDeclarations]: Found specification of procedure __U_MULTI_flength_test___false_valid_memtrack_i____bswap_64 [2018-04-10 13:38:57,540 INFO L128 BoogieDeclarations]: Found specification of procedure select [2018-04-10 13:38:57,540 INFO L128 BoogieDeclarations]: Found specification of procedure pselect [2018-04-10 13:38:57,540 INFO L128 BoogieDeclarations]: Found specification of procedure gnu_dev_major [2018-04-10 13:38:57,540 INFO L128 BoogieDeclarations]: Found specification of procedure gnu_dev_minor [2018-04-10 13:38:57,540 INFO L128 BoogieDeclarations]: Found specification of procedure gnu_dev_makedev [2018-04-10 13:38:57,540 INFO L128 BoogieDeclarations]: Found specification of procedure random [2018-04-10 13:38:57,540 INFO L128 BoogieDeclarations]: Found specification of procedure srandom [2018-04-10 13:38:57,540 INFO L128 BoogieDeclarations]: Found specification of procedure initstate [2018-04-10 13:38:57,540 INFO L128 BoogieDeclarations]: Found specification of procedure setstate [2018-04-10 13:38:57,541 INFO L128 BoogieDeclarations]: Found specification of procedure random_r [2018-04-10 13:38:57,541 INFO L128 BoogieDeclarations]: Found specification of procedure srandom_r [2018-04-10 13:38:57,541 INFO L128 BoogieDeclarations]: Found specification of procedure initstate_r [2018-04-10 13:38:57,541 INFO L128 BoogieDeclarations]: Found specification of procedure setstate_r [2018-04-10 13:38:57,541 INFO L128 BoogieDeclarations]: Found specification of procedure rand [2018-04-10 13:38:57,541 INFO L128 BoogieDeclarations]: Found specification of procedure srand [2018-04-10 13:38:57,541 INFO L128 BoogieDeclarations]: Found specification of procedure rand_r [2018-04-10 13:38:57,541 INFO L128 BoogieDeclarations]: Found specification of procedure drand48 [2018-04-10 13:38:57,541 INFO L128 BoogieDeclarations]: Found specification of procedure erand48 [2018-04-10 13:38:57,542 INFO L128 BoogieDeclarations]: Found specification of procedure lrand48 [2018-04-10 13:38:57,542 INFO L128 BoogieDeclarations]: Found specification of procedure nrand48 [2018-04-10 13:38:57,542 INFO L128 BoogieDeclarations]: Found specification of procedure mrand48 [2018-04-10 13:38:57,542 INFO L128 BoogieDeclarations]: Found specification of procedure jrand48 [2018-04-10 13:38:57,542 INFO L128 BoogieDeclarations]: Found specification of procedure srand48 [2018-04-10 13:38:57,542 INFO L128 BoogieDeclarations]: Found specification of procedure seed48 [2018-04-10 13:38:57,542 INFO L128 BoogieDeclarations]: Found specification of procedure lcong48 [2018-04-10 13:38:57,542 INFO L128 BoogieDeclarations]: Found specification of procedure drand48_r [2018-04-10 13:38:57,542 INFO L128 BoogieDeclarations]: Found specification of procedure erand48_r [2018-04-10 13:38:57,542 INFO L128 BoogieDeclarations]: Found specification of procedure lrand48_r [2018-04-10 13:38:57,543 INFO L128 BoogieDeclarations]: Found specification of procedure nrand48_r [2018-04-10 13:38:57,543 INFO L128 BoogieDeclarations]: Found specification of procedure mrand48_r [2018-04-10 13:38:57,543 INFO L128 BoogieDeclarations]: Found specification of procedure jrand48_r [2018-04-10 13:38:57,543 INFO L128 BoogieDeclarations]: Found specification of procedure srand48_r [2018-04-10 13:38:57,543 INFO L128 BoogieDeclarations]: Found specification of procedure seed48_r [2018-04-10 13:38:57,543 INFO L128 BoogieDeclarations]: Found specification of procedure lcong48_r [2018-04-10 13:38:57,543 INFO L128 BoogieDeclarations]: Found specification of procedure malloc [2018-04-10 13:38:57,543 INFO L128 BoogieDeclarations]: Found specification of procedure calloc [2018-04-10 13:38:57,543 INFO L128 BoogieDeclarations]: Found specification of procedure realloc [2018-04-10 13:38:57,543 INFO L128 BoogieDeclarations]: Found specification of procedure free [2018-04-10 13:38:57,543 INFO L128 BoogieDeclarations]: Found specification of procedure cfree [2018-04-10 13:38:57,543 INFO L128 BoogieDeclarations]: Found specification of procedure alloca [2018-04-10 13:38:57,544 INFO L128 BoogieDeclarations]: Found specification of procedure valloc [2018-04-10 13:38:57,544 INFO L128 BoogieDeclarations]: Found specification of procedure posix_memalign [2018-04-10 13:38:57,544 INFO L128 BoogieDeclarations]: Found specification of procedure aligned_alloc [2018-04-10 13:38:57,544 INFO L128 BoogieDeclarations]: Found specification of procedure abort [2018-04-10 13:38:57,544 INFO L128 BoogieDeclarations]: Found specification of procedure atexit [2018-04-10 13:38:57,544 INFO L128 BoogieDeclarations]: Found specification of procedure at_quick_exit [2018-04-10 13:38:57,544 INFO L128 BoogieDeclarations]: Found specification of procedure on_exit [2018-04-10 13:38:57,544 INFO L128 BoogieDeclarations]: Found specification of procedure exit [2018-04-10 13:38:57,544 INFO L128 BoogieDeclarations]: Found specification of procedure quick_exit [2018-04-10 13:38:57,544 INFO L128 BoogieDeclarations]: Found specification of procedure _Exit [2018-04-10 13:38:57,544 INFO L128 BoogieDeclarations]: Found specification of procedure getenv [2018-04-10 13:38:57,544 INFO L128 BoogieDeclarations]: Found specification of procedure putenv [2018-04-10 13:38:57,544 INFO L128 BoogieDeclarations]: Found specification of procedure setenv [2018-04-10 13:38:57,544 INFO L128 BoogieDeclarations]: Found specification of procedure unsetenv [2018-04-10 13:38:57,544 INFO L128 BoogieDeclarations]: Found specification of procedure clearenv [2018-04-10 13:38:57,545 INFO L128 BoogieDeclarations]: Found specification of procedure mktemp [2018-04-10 13:38:57,545 INFO L128 BoogieDeclarations]: Found specification of procedure mkstemp [2018-04-10 13:38:57,545 INFO L128 BoogieDeclarations]: Found specification of procedure mkstemps [2018-04-10 13:38:57,545 INFO L128 BoogieDeclarations]: Found specification of procedure mkdtemp [2018-04-10 13:38:57,545 INFO L128 BoogieDeclarations]: Found specification of procedure system [2018-04-10 13:38:57,545 INFO L128 BoogieDeclarations]: Found specification of procedure realpath [2018-04-10 13:38:57,545 INFO L128 BoogieDeclarations]: Found specification of procedure bsearch [2018-04-10 13:38:57,545 INFO L128 BoogieDeclarations]: Found specification of procedure qsort [2018-04-10 13:38:57,545 INFO L128 BoogieDeclarations]: Found specification of procedure abs [2018-04-10 13:38:57,545 INFO L128 BoogieDeclarations]: Found specification of procedure labs [2018-04-10 13:38:57,545 INFO L128 BoogieDeclarations]: Found specification of procedure llabs [2018-04-10 13:38:57,545 INFO L128 BoogieDeclarations]: Found specification of procedure div [2018-04-10 13:38:57,545 INFO L128 BoogieDeclarations]: Found specification of procedure ldiv [2018-04-10 13:38:57,545 INFO L128 BoogieDeclarations]: Found specification of procedure lldiv [2018-04-10 13:38:57,545 INFO L128 BoogieDeclarations]: Found specification of procedure ecvt [2018-04-10 13:38:57,545 INFO L128 BoogieDeclarations]: Found specification of procedure fcvt [2018-04-10 13:38:57,546 INFO L128 BoogieDeclarations]: Found specification of procedure gcvt [2018-04-10 13:38:57,546 INFO L128 BoogieDeclarations]: Found specification of procedure qecvt [2018-04-10 13:38:57,546 INFO L128 BoogieDeclarations]: Found specification of procedure qfcvt [2018-04-10 13:38:57,546 INFO L128 BoogieDeclarations]: Found specification of procedure qgcvt [2018-04-10 13:38:57,546 INFO L128 BoogieDeclarations]: Found specification of procedure ecvt_r [2018-04-10 13:38:57,546 INFO L128 BoogieDeclarations]: Found specification of procedure fcvt_r [2018-04-10 13:38:57,546 INFO L128 BoogieDeclarations]: Found specification of procedure qecvt_r [2018-04-10 13:38:57,546 INFO L128 BoogieDeclarations]: Found specification of procedure qfcvt_r [2018-04-10 13:38:57,546 INFO L128 BoogieDeclarations]: Found specification of procedure mblen [2018-04-10 13:38:57,546 INFO L128 BoogieDeclarations]: Found specification of procedure mbtowc [2018-04-10 13:38:57,546 INFO L128 BoogieDeclarations]: Found specification of procedure wctomb [2018-04-10 13:38:57,547 INFO L128 BoogieDeclarations]: Found specification of procedure mbstowcs [2018-04-10 13:38:57,547 INFO L128 BoogieDeclarations]: Found specification of procedure wcstombs [2018-04-10 13:38:57,547 INFO L128 BoogieDeclarations]: Found specification of procedure rpmatch [2018-04-10 13:38:57,547 INFO L128 BoogieDeclarations]: Found specification of procedure getsubopt [2018-04-10 13:38:57,547 INFO L128 BoogieDeclarations]: Found specification of procedure getloadavg [2018-04-10 13:38:57,547 INFO L128 BoogieDeclarations]: Found specification of procedure __VERIFIER_nondet_char [2018-04-10 13:38:57,547 INFO L128 BoogieDeclarations]: Found specification of procedure __VERIFIER_nondet_int [2018-04-10 13:38:57,547 INFO L128 BoogieDeclarations]: Found specification of procedure __U_MULTI_flength_test___false_valid_memtrack_i__append [2018-04-10 13:38:57,547 INFO L128 BoogieDeclarations]: Found specification of procedure #Ultimate.alloc [2018-04-10 13:38:57,547 INFO L128 BoogieDeclarations]: Found specification of procedure write~int [2018-04-10 13:38:57,547 INFO L128 BoogieDeclarations]: Found specification of procedure read~$Pointer$ [2018-04-10 13:38:57,547 INFO L128 BoogieDeclarations]: Found specification of procedure write~$Pointer$ [2018-04-10 13:38:57,548 INFO L128 BoogieDeclarations]: Found specification of procedure main [2018-04-10 13:38:57,548 INFO L128 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2018-04-10 13:38:57,548 INFO L128 BoogieDeclarations]: Found specification of procedure ULTIMATE.init [2018-04-10 13:38:57,548 INFO L128 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2018-04-10 13:38:57,548 INFO L128 BoogieDeclarations]: Found specification of procedure write~unchecked~int [2018-04-10 13:38:57,548 INFO L128 BoogieDeclarations]: Found specification of procedure read~int [2018-04-10 13:38:57,905 INFO L259 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2018-04-10 13:38:57,906 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 10.04 01:38:57 BoogieIcfgContainer [2018-04-10 13:38:57,906 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2018-04-10 13:38:57,907 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2018-04-10 13:38:57,907 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2018-04-10 13:38:57,909 INFO L276 PluginConnector]: TraceAbstraction initialized [2018-04-10 13:38:57,909 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 10.04 01:38:57" (1/3) ... [2018-04-10 13:38:57,909 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@6bfd1599 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 10.04 01:38:57, skipping insertion in model container [2018-04-10 13:38:57,909 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 10.04 01:38:57" (2/3) ... [2018-04-10 13:38:57,909 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@6bfd1599 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 10.04 01:38:57, skipping insertion in model container [2018-04-10 13:38:57,909 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 10.04 01:38:57" (3/3) ... [2018-04-10 13:38:57,911 INFO L107 eAbstractionObserver]: Analyzing ICFG length_test03_false-valid-memtrack.i [2018-04-10 13:38:57,917 INFO L131 ceAbstractionStarter]: Automizer settings: Hoare:false NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2018-04-10 13:38:57,924 INFO L143 ceAbstractionStarter]: Appying trace abstraction to program that has 55 error locations. [2018-04-10 13:38:57,958 INFO L128 ementStrategyFactory]: Using default assertion order modulation [2018-04-10 13:38:57,959 INFO L369 AbstractCegarLoop]: Interprodecural is true [2018-04-10 13:38:57,959 INFO L370 AbstractCegarLoop]: Hoare is false [2018-04-10 13:38:57,959 INFO L371 AbstractCegarLoop]: Compute interpolants for FPandBP [2018-04-10 13:38:57,959 INFO L372 AbstractCegarLoop]: Backedges is TWOTRACK [2018-04-10 13:38:57,959 INFO L373 AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2018-04-10 13:38:57,959 INFO L374 AbstractCegarLoop]: Difference is false [2018-04-10 13:38:57,959 INFO L375 AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA [2018-04-10 13:38:57,960 INFO L380 AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == AllErrorsAtOnce======== [2018-04-10 13:38:57,960 INFO L87 2NestedWordAutomaton]: Mode: main mode - execution starts in main procedure [2018-04-10 13:38:57,969 INFO L276 IsEmpty]: Start isEmpty. Operand 139 states. [2018-04-10 13:38:57,975 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 9 [2018-04-10 13:38:57,975 INFO L347 BasicCegarLoop]: Found error trace [2018-04-10 13:38:57,975 INFO L355 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1] [2018-04-10 13:38:57,975 INFO L408 AbstractCegarLoop]: === Iteration 1 === [mainErr5RequiresViolation, mainErr13RequiresViolation, mainErr25AssertViolationMEMORY_FREE, mainErr14AssertViolationMEMORY_FREE, mainErr18RequiresViolation, mainErr0RequiresViolation, mainErr21RequiresViolation, mainErr3RequiresViolation, mainErr28EnsuresViolationMEMORY_LEAK, mainErr16RequiresViolation, mainErr2RequiresViolation, mainErr12RequiresViolation, mainErr6RequiresViolation, mainErr19RequiresViolation, mainErr24AssertViolationMEMORY_FREE, mainErr1RequiresViolation, mainErr17RequiresViolation, mainErr23AssertViolationMEMORY_FREE, mainErr9RequiresViolation, mainErr22AssertViolationMEMORY_FREE, mainErr7RequiresViolation, mainErr20RequiresViolation, mainErr11RequiresViolation, mainErr26AssertViolationMEMORY_FREE, mainErr8RequiresViolation, mainErr10RequiresViolation, mainErr4RequiresViolation, mainErr15AssertViolationMEMORY_FREE, mainErr27AssertViolationMEMORY_FREE, __U_MULTI_flength_test___false_valid_memtrack_i__appendErr2RequiresViolation, __U_MULTI_flength_test___false_valid_memtrack_i__appendErr18RequiresViolation, __U_MULTI_flength_test___false_valid_memtrack_i__appendErr23RequiresViolation, __U_MULTI_flength_test___false_valid_memtrack_i__appendErr21RequiresViolation, __U_MULTI_flength_test___false_valid_memtrack_i__appendErr13RequiresViolation, __U_MULTI_flength_test___false_valid_memtrack_i__appendErr24RequiresViolation, __U_MULTI_flength_test___false_valid_memtrack_i__appendErr4RequiresViolation, __U_MULTI_flength_test___false_valid_memtrack_i__appendErr10RequiresViolation, __U_MULTI_flength_test___false_valid_memtrack_i__appendErr20RequiresViolation, __U_MULTI_flength_test___false_valid_memtrack_i__appendErr3RequiresViolation, __U_MULTI_flength_test___false_valid_memtrack_i__appendErr11RequiresViolation, __U_MULTI_flength_test___false_valid_memtrack_i__appendErr7RequiresViolation, __U_MULTI_flength_test___false_valid_memtrack_i__appendErr0RequiresViolation, __U_MULTI_flength_test___false_valid_memtrack_i__appendErr14RequiresViolation, __U_MULTI_flength_test___false_valid_memtrack_i__appendErr22RequiresViolation, __U_MULTI_flength_test___false_valid_memtrack_i__appendErr12RequiresViolation, __U_MULTI_flength_test___false_valid_memtrack_i__appendErr17RequiresViolation, __U_MULTI_flength_test___false_valid_memtrack_i__appendErr25RequiresViolation, __U_MULTI_flength_test___false_valid_memtrack_i__appendErr1RequiresViolation, __U_MULTI_flength_test___false_valid_memtrack_i__appendErr6RequiresViolation, __U_MULTI_flength_test___false_valid_memtrack_i__appendErr8RequiresViolation, __U_MULTI_flength_test___false_valid_memtrack_i__appendErr19RequiresViolation, __U_MULTI_flength_test___false_valid_memtrack_i__appendErr15RequiresViolation, __U_MULTI_flength_test___false_valid_memtrack_i__appendErr9RequiresViolation, __U_MULTI_flength_test___false_valid_memtrack_i__appendErr5RequiresViolation, __U_MULTI_flength_test___false_valid_memtrack_i__appendErr16RequiresViolation]=== [2018-04-10 13:38:57,978 INFO L82 PathProgramCache]: Analyzing trace with hash 1465942715, now seen corresponding path program 1 times [2018-04-10 13:38:57,979 INFO L213 ckRefinementStrategy]: Switched to mode SMTINTERPOL_TREE_INTERPOLANTS [2018-04-10 13:38:57,979 INFO L68 tionRefinementEngine]: Using refinement strategy CamelRefinementStrategy [2018-04-10 13:38:58,008 INFO L119 rtionOrderModulation]: Craig nested/tree interpolation forces the following order [2018-04-10 13:38:58,008 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-04-10 13:38:58,008 INFO L119 rtionOrderModulation]: Craig nested/tree interpolation forces the following order [2018-04-10 13:38:58,029 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-04-10 13:38:58,034 WARN L137 erpolLogProxyWrapper]: Using partial proofs (cut at CNF-level). Set option :produce-proofs to true to get complete proofs. [2018-04-10 13:38:58,070 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-04-10 13:38:58,071 INFO L320 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2018-04-10 13:38:58,072 INFO L335 seRefinementStrategy]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2018-04-10 13:38:58,073 INFO L442 AbstractCegarLoop]: Interpolant automaton has 4 states [2018-04-10 13:38:58,080 INFO L132 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2018-04-10 13:38:58,081 INFO L133 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2018-04-10 13:38:58,082 INFO L87 Difference]: Start difference. First operand 139 states. Second operand 4 states. [2018-04-10 13:38:58,265 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-04-10 13:38:58,265 INFO L93 Difference]: Finished difference Result 175 states and 184 transitions. [2018-04-10 13:38:58,266 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2018-04-10 13:38:58,267 INFO L78 Accepts]: Start accepts. Automaton has 4 states. Word has length 8 [2018-04-10 13:38:58,267 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-04-10 13:38:58,277 INFO L225 Difference]: With dead ends: 175 [2018-04-10 13:38:58,277 INFO L226 Difference]: Without dead ends: 172 [2018-04-10 13:38:58,280 INFO L567 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 [2018-04-10 13:38:58,300 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 172 states. [2018-04-10 13:38:58,325 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 172 to 134. [2018-04-10 13:38:58,326 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 134 states. [2018-04-10 13:38:58,331 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 134 states to 134 states and 140 transitions. [2018-04-10 13:38:58,332 INFO L78 Accepts]: Start accepts. Automaton has 134 states and 140 transitions. Word has length 8 [2018-04-10 13:38:58,333 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-04-10 13:38:58,333 INFO L459 AbstractCegarLoop]: Abstraction has 134 states and 140 transitions. [2018-04-10 13:38:58,333 INFO L460 AbstractCegarLoop]: Interpolant automaton has 4 states. [2018-04-10 13:38:58,333 INFO L276 IsEmpty]: Start isEmpty. Operand 134 states and 140 transitions. [2018-04-10 13:38:58,333 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 9 [2018-04-10 13:38:58,333 INFO L347 BasicCegarLoop]: Found error trace [2018-04-10 13:38:58,333 INFO L355 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1] [2018-04-10 13:38:58,334 INFO L408 AbstractCegarLoop]: === Iteration 2 === [mainErr5RequiresViolation, mainErr13RequiresViolation, mainErr25AssertViolationMEMORY_FREE, mainErr14AssertViolationMEMORY_FREE, mainErr18RequiresViolation, mainErr0RequiresViolation, mainErr21RequiresViolation, mainErr3RequiresViolation, mainErr28EnsuresViolationMEMORY_LEAK, mainErr16RequiresViolation, mainErr2RequiresViolation, mainErr12RequiresViolation, mainErr6RequiresViolation, mainErr19RequiresViolation, mainErr24AssertViolationMEMORY_FREE, mainErr1RequiresViolation, mainErr17RequiresViolation, mainErr23AssertViolationMEMORY_FREE, mainErr9RequiresViolation, mainErr22AssertViolationMEMORY_FREE, mainErr7RequiresViolation, mainErr20RequiresViolation, mainErr11RequiresViolation, mainErr26AssertViolationMEMORY_FREE, mainErr8RequiresViolation, mainErr10RequiresViolation, mainErr4RequiresViolation, mainErr15AssertViolationMEMORY_FREE, mainErr27AssertViolationMEMORY_FREE, __U_MULTI_flength_test___false_valid_memtrack_i__appendErr2RequiresViolation, __U_MULTI_flength_test___false_valid_memtrack_i__appendErr18RequiresViolation, __U_MULTI_flength_test___false_valid_memtrack_i__appendErr23RequiresViolation, __U_MULTI_flength_test___false_valid_memtrack_i__appendErr21RequiresViolation, __U_MULTI_flength_test___false_valid_memtrack_i__appendErr13RequiresViolation, __U_MULTI_flength_test___false_valid_memtrack_i__appendErr24RequiresViolation, __U_MULTI_flength_test___false_valid_memtrack_i__appendErr4RequiresViolation, __U_MULTI_flength_test___false_valid_memtrack_i__appendErr10RequiresViolation, __U_MULTI_flength_test___false_valid_memtrack_i__appendErr20RequiresViolation, __U_MULTI_flength_test___false_valid_memtrack_i__appendErr3RequiresViolation, __U_MULTI_flength_test___false_valid_memtrack_i__appendErr11RequiresViolation, __U_MULTI_flength_test___false_valid_memtrack_i__appendErr7RequiresViolation, __U_MULTI_flength_test___false_valid_memtrack_i__appendErr0RequiresViolation, __U_MULTI_flength_test___false_valid_memtrack_i__appendErr14RequiresViolation, __U_MULTI_flength_test___false_valid_memtrack_i__appendErr22RequiresViolation, __U_MULTI_flength_test___false_valid_memtrack_i__appendErr12RequiresViolation, __U_MULTI_flength_test___false_valid_memtrack_i__appendErr17RequiresViolation, __U_MULTI_flength_test___false_valid_memtrack_i__appendErr25RequiresViolation, __U_MULTI_flength_test___false_valid_memtrack_i__appendErr1RequiresViolation, __U_MULTI_flength_test___false_valid_memtrack_i__appendErr6RequiresViolation, __U_MULTI_flength_test___false_valid_memtrack_i__appendErr8RequiresViolation, __U_MULTI_flength_test___false_valid_memtrack_i__appendErr19RequiresViolation, __U_MULTI_flength_test___false_valid_memtrack_i__appendErr15RequiresViolation, __U_MULTI_flength_test___false_valid_memtrack_i__appendErr9RequiresViolation, __U_MULTI_flength_test___false_valid_memtrack_i__appendErr5RequiresViolation, __U_MULTI_flength_test___false_valid_memtrack_i__appendErr16RequiresViolation]=== [2018-04-10 13:38:58,334 INFO L82 PathProgramCache]: Analyzing trace with hash 1465942716, now seen corresponding path program 1 times [2018-04-10 13:38:58,334 INFO L213 ckRefinementStrategy]: Switched to mode SMTINTERPOL_TREE_INTERPOLANTS [2018-04-10 13:38:58,334 INFO L68 tionRefinementEngine]: Using refinement strategy CamelRefinementStrategy [2018-04-10 13:38:58,335 INFO L119 rtionOrderModulation]: Craig nested/tree interpolation forces the following order [2018-04-10 13:38:58,335 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-04-10 13:38:58,335 INFO L119 rtionOrderModulation]: Craig nested/tree interpolation forces the following order [2018-04-10 13:38:58,347 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-04-10 13:38:58,348 WARN L137 erpolLogProxyWrapper]: Using partial proofs (cut at CNF-level). Set option :produce-proofs to true to get complete proofs. [2018-04-10 13:38:58,383 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-04-10 13:38:58,383 INFO L320 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2018-04-10 13:38:58,383 INFO L335 seRefinementStrategy]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2018-04-10 13:38:58,384 INFO L442 AbstractCegarLoop]: Interpolant automaton has 4 states [2018-04-10 13:38:58,384 INFO L132 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2018-04-10 13:38:58,384 INFO L133 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2018-04-10 13:38:58,385 INFO L87 Difference]: Start difference. First operand 134 states and 140 transitions. Second operand 4 states. [2018-04-10 13:38:58,529 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-04-10 13:38:58,530 INFO L93 Difference]: Finished difference Result 134 states and 141 transitions. [2018-04-10 13:38:58,530 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2018-04-10 13:38:58,530 INFO L78 Accepts]: Start accepts. Automaton has 4 states. Word has length 8 [2018-04-10 13:38:58,530 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-04-10 13:38:58,531 INFO L225 Difference]: With dead ends: 134 [2018-04-10 13:38:58,531 INFO L226 Difference]: Without dead ends: 134 [2018-04-10 13:38:58,531 INFO L567 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 [2018-04-10 13:38:58,532 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 134 states. [2018-04-10 13:38:58,536 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 134 to 132. [2018-04-10 13:38:58,536 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 132 states. [2018-04-10 13:38:58,537 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 132 states to 132 states and 138 transitions. [2018-04-10 13:38:58,538 INFO L78 Accepts]: Start accepts. Automaton has 132 states and 138 transitions. Word has length 8 [2018-04-10 13:38:58,538 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-04-10 13:38:58,538 INFO L459 AbstractCegarLoop]: Abstraction has 132 states and 138 transitions. [2018-04-10 13:38:58,538 INFO L460 AbstractCegarLoop]: Interpolant automaton has 4 states. [2018-04-10 13:38:58,538 INFO L276 IsEmpty]: Start isEmpty. Operand 132 states and 138 transitions. [2018-04-10 13:38:58,538 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 13 [2018-04-10 13:38:58,538 INFO L347 BasicCegarLoop]: Found error trace [2018-04-10 13:38:58,538 INFO L355 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2018-04-10 13:38:58,538 INFO L408 AbstractCegarLoop]: === Iteration 3 === [mainErr5RequiresViolation, mainErr13RequiresViolation, mainErr25AssertViolationMEMORY_FREE, mainErr14AssertViolationMEMORY_FREE, mainErr18RequiresViolation, mainErr0RequiresViolation, mainErr21RequiresViolation, mainErr3RequiresViolation, mainErr28EnsuresViolationMEMORY_LEAK, mainErr16RequiresViolation, mainErr2RequiresViolation, mainErr12RequiresViolation, mainErr6RequiresViolation, mainErr19RequiresViolation, mainErr24AssertViolationMEMORY_FREE, mainErr1RequiresViolation, mainErr17RequiresViolation, mainErr23AssertViolationMEMORY_FREE, mainErr9RequiresViolation, mainErr22AssertViolationMEMORY_FREE, mainErr7RequiresViolation, mainErr20RequiresViolation, mainErr11RequiresViolation, mainErr26AssertViolationMEMORY_FREE, mainErr8RequiresViolation, mainErr10RequiresViolation, mainErr4RequiresViolation, mainErr15AssertViolationMEMORY_FREE, mainErr27AssertViolationMEMORY_FREE, __U_MULTI_flength_test___false_valid_memtrack_i__appendErr2RequiresViolation, __U_MULTI_flength_test___false_valid_memtrack_i__appendErr18RequiresViolation, __U_MULTI_flength_test___false_valid_memtrack_i__appendErr23RequiresViolation, __U_MULTI_flength_test___false_valid_memtrack_i__appendErr21RequiresViolation, __U_MULTI_flength_test___false_valid_memtrack_i__appendErr13RequiresViolation, __U_MULTI_flength_test___false_valid_memtrack_i__appendErr24RequiresViolation, __U_MULTI_flength_test___false_valid_memtrack_i__appendErr4RequiresViolation, __U_MULTI_flength_test___false_valid_memtrack_i__appendErr10RequiresViolation, __U_MULTI_flength_test___false_valid_memtrack_i__appendErr20RequiresViolation, __U_MULTI_flength_test___false_valid_memtrack_i__appendErr3RequiresViolation, __U_MULTI_flength_test___false_valid_memtrack_i__appendErr11RequiresViolation, __U_MULTI_flength_test___false_valid_memtrack_i__appendErr7RequiresViolation, __U_MULTI_flength_test___false_valid_memtrack_i__appendErr0RequiresViolation, __U_MULTI_flength_test___false_valid_memtrack_i__appendErr14RequiresViolation, __U_MULTI_flength_test___false_valid_memtrack_i__appendErr22RequiresViolation, __U_MULTI_flength_test___false_valid_memtrack_i__appendErr12RequiresViolation, __U_MULTI_flength_test___false_valid_memtrack_i__appendErr17RequiresViolation, __U_MULTI_flength_test___false_valid_memtrack_i__appendErr25RequiresViolation, __U_MULTI_flength_test___false_valid_memtrack_i__appendErr1RequiresViolation, __U_MULTI_flength_test___false_valid_memtrack_i__appendErr6RequiresViolation, __U_MULTI_flength_test___false_valid_memtrack_i__appendErr8RequiresViolation, __U_MULTI_flength_test___false_valid_memtrack_i__appendErr19RequiresViolation, __U_MULTI_flength_test___false_valid_memtrack_i__appendErr15RequiresViolation, __U_MULTI_flength_test___false_valid_memtrack_i__appendErr9RequiresViolation, __U_MULTI_flength_test___false_valid_memtrack_i__appendErr5RequiresViolation, __U_MULTI_flength_test___false_valid_memtrack_i__appendErr16RequiresViolation]=== [2018-04-10 13:38:58,538 INFO L82 PathProgramCache]: Analyzing trace with hash -643063297, now seen corresponding path program 1 times [2018-04-10 13:38:58,539 INFO L213 ckRefinementStrategy]: Switched to mode SMTINTERPOL_TREE_INTERPOLANTS [2018-04-10 13:38:58,539 INFO L68 tionRefinementEngine]: Using refinement strategy CamelRefinementStrategy [2018-04-10 13:38:58,539 INFO L119 rtionOrderModulation]: Craig nested/tree interpolation forces the following order [2018-04-10 13:38:58,539 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-04-10 13:38:58,539 INFO L119 rtionOrderModulation]: Craig nested/tree interpolation forces the following order [2018-04-10 13:38:58,550 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-04-10 13:38:58,551 WARN L137 erpolLogProxyWrapper]: Using partial proofs (cut at CNF-level). Set option :produce-proofs to true to get complete proofs. [2018-04-10 13:38:58,570 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-04-10 13:38:58,571 INFO L320 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2018-04-10 13:38:58,571 INFO L335 seRefinementStrategy]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2018-04-10 13:38:58,571 INFO L442 AbstractCegarLoop]: Interpolant automaton has 4 states [2018-04-10 13:38:58,571 INFO L132 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2018-04-10 13:38:58,571 INFO L133 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2018-04-10 13:38:58,571 INFO L87 Difference]: Start difference. First operand 132 states and 138 transitions. Second operand 4 states. [2018-04-10 13:38:58,658 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-04-10 13:38:58,658 INFO L93 Difference]: Finished difference Result 148 states and 156 transitions. [2018-04-10 13:38:58,658 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2018-04-10 13:38:58,658 INFO L78 Accepts]: Start accepts. Automaton has 4 states. Word has length 12 [2018-04-10 13:38:58,659 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-04-10 13:38:58,659 INFO L225 Difference]: With dead ends: 148 [2018-04-10 13:38:58,660 INFO L226 Difference]: Without dead ends: 148 [2018-04-10 13:38:58,660 INFO L567 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 [2018-04-10 13:38:58,660 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 148 states. [2018-04-10 13:38:58,664 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 148 to 135. [2018-04-10 13:38:58,665 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 135 states. [2018-04-10 13:38:58,666 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 135 states to 135 states and 143 transitions. [2018-04-10 13:38:58,666 INFO L78 Accepts]: Start accepts. Automaton has 135 states and 143 transitions. Word has length 12 [2018-04-10 13:38:58,666 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-04-10 13:38:58,666 INFO L459 AbstractCegarLoop]: Abstraction has 135 states and 143 transitions. [2018-04-10 13:38:58,666 INFO L460 AbstractCegarLoop]: Interpolant automaton has 4 states. [2018-04-10 13:38:58,666 INFO L276 IsEmpty]: Start isEmpty. Operand 135 states and 143 transitions. [2018-04-10 13:38:58,667 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 13 [2018-04-10 13:38:58,667 INFO L347 BasicCegarLoop]: Found error trace [2018-04-10 13:38:58,667 INFO L355 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2018-04-10 13:38:58,667 INFO L408 AbstractCegarLoop]: === Iteration 4 === [mainErr5RequiresViolation, mainErr13RequiresViolation, mainErr25AssertViolationMEMORY_FREE, mainErr14AssertViolationMEMORY_FREE, mainErr18RequiresViolation, mainErr0RequiresViolation, mainErr21RequiresViolation, mainErr3RequiresViolation, mainErr28EnsuresViolationMEMORY_LEAK, mainErr16RequiresViolation, mainErr2RequiresViolation, mainErr12RequiresViolation, mainErr6RequiresViolation, mainErr19RequiresViolation, mainErr24AssertViolationMEMORY_FREE, mainErr1RequiresViolation, mainErr17RequiresViolation, mainErr23AssertViolationMEMORY_FREE, mainErr9RequiresViolation, mainErr22AssertViolationMEMORY_FREE, mainErr7RequiresViolation, mainErr20RequiresViolation, mainErr11RequiresViolation, mainErr26AssertViolationMEMORY_FREE, mainErr8RequiresViolation, mainErr10RequiresViolation, mainErr4RequiresViolation, mainErr15AssertViolationMEMORY_FREE, mainErr27AssertViolationMEMORY_FREE, __U_MULTI_flength_test___false_valid_memtrack_i__appendErr2RequiresViolation, __U_MULTI_flength_test___false_valid_memtrack_i__appendErr18RequiresViolation, __U_MULTI_flength_test___false_valid_memtrack_i__appendErr23RequiresViolation, __U_MULTI_flength_test___false_valid_memtrack_i__appendErr21RequiresViolation, __U_MULTI_flength_test___false_valid_memtrack_i__appendErr13RequiresViolation, __U_MULTI_flength_test___false_valid_memtrack_i__appendErr24RequiresViolation, __U_MULTI_flength_test___false_valid_memtrack_i__appendErr4RequiresViolation, __U_MULTI_flength_test___false_valid_memtrack_i__appendErr10RequiresViolation, __U_MULTI_flength_test___false_valid_memtrack_i__appendErr20RequiresViolation, __U_MULTI_flength_test___false_valid_memtrack_i__appendErr3RequiresViolation, __U_MULTI_flength_test___false_valid_memtrack_i__appendErr11RequiresViolation, __U_MULTI_flength_test___false_valid_memtrack_i__appendErr7RequiresViolation, __U_MULTI_flength_test___false_valid_memtrack_i__appendErr0RequiresViolation, __U_MULTI_flength_test___false_valid_memtrack_i__appendErr14RequiresViolation, __U_MULTI_flength_test___false_valid_memtrack_i__appendErr22RequiresViolation, __U_MULTI_flength_test___false_valid_memtrack_i__appendErr12RequiresViolation, __U_MULTI_flength_test___false_valid_memtrack_i__appendErr17RequiresViolation, __U_MULTI_flength_test___false_valid_memtrack_i__appendErr25RequiresViolation, __U_MULTI_flength_test___false_valid_memtrack_i__appendErr1RequiresViolation, __U_MULTI_flength_test___false_valid_memtrack_i__appendErr6RequiresViolation, __U_MULTI_flength_test___false_valid_memtrack_i__appendErr8RequiresViolation, __U_MULTI_flength_test___false_valid_memtrack_i__appendErr19RequiresViolation, __U_MULTI_flength_test___false_valid_memtrack_i__appendErr15RequiresViolation, __U_MULTI_flength_test___false_valid_memtrack_i__appendErr9RequiresViolation, __U_MULTI_flength_test___false_valid_memtrack_i__appendErr5RequiresViolation, __U_MULTI_flength_test___false_valid_memtrack_i__appendErr16RequiresViolation]=== [2018-04-10 13:38:58,667 INFO L82 PathProgramCache]: Analyzing trace with hash -643063296, now seen corresponding path program 1 times [2018-04-10 13:38:58,667 INFO L213 ckRefinementStrategy]: Switched to mode SMTINTERPOL_TREE_INTERPOLANTS [2018-04-10 13:38:58,667 INFO L68 tionRefinementEngine]: Using refinement strategy CamelRefinementStrategy [2018-04-10 13:38:58,668 INFO L119 rtionOrderModulation]: Craig nested/tree interpolation forces the following order [2018-04-10 13:38:58,668 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-04-10 13:38:58,669 INFO L119 rtionOrderModulation]: Craig nested/tree interpolation forces the following order [2018-04-10 13:38:58,678 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-04-10 13:38:58,678 WARN L137 erpolLogProxyWrapper]: Using partial proofs (cut at CNF-level). Set option :produce-proofs to true to get complete proofs. [2018-04-10 13:38:58,714 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-04-10 13:38:58,715 INFO L320 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2018-04-10 13:38:58,715 INFO L335 seRefinementStrategy]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2018-04-10 13:38:58,715 INFO L442 AbstractCegarLoop]: Interpolant automaton has 4 states [2018-04-10 13:38:58,715 INFO L132 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2018-04-10 13:38:58,716 INFO L133 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2018-04-10 13:38:58,716 INFO L87 Difference]: Start difference. First operand 135 states and 143 transitions. Second operand 4 states. [2018-04-10 13:38:58,786 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-04-10 13:38:58,787 INFO L93 Difference]: Finished difference Result 135 states and 144 transitions. [2018-04-10 13:38:58,787 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2018-04-10 13:38:58,787 INFO L78 Accepts]: Start accepts. Automaton has 4 states. Word has length 12 [2018-04-10 13:38:58,787 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-04-10 13:38:58,788 INFO L225 Difference]: With dead ends: 135 [2018-04-10 13:38:58,788 INFO L226 Difference]: Without dead ends: 135 [2018-04-10 13:38:58,788 INFO L567 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 [2018-04-10 13:38:58,788 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 135 states. [2018-04-10 13:38:58,791 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 135 to 133. [2018-04-10 13:38:58,791 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 133 states. [2018-04-10 13:38:58,792 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 133 states to 133 states and 141 transitions. [2018-04-10 13:38:58,792 INFO L78 Accepts]: Start accepts. Automaton has 133 states and 141 transitions. Word has length 12 [2018-04-10 13:38:58,792 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-04-10 13:38:58,792 INFO L459 AbstractCegarLoop]: Abstraction has 133 states and 141 transitions. [2018-04-10 13:38:58,792 INFO L460 AbstractCegarLoop]: Interpolant automaton has 4 states. [2018-04-10 13:38:58,792 INFO L276 IsEmpty]: Start isEmpty. Operand 133 states and 141 transitions. [2018-04-10 13:38:58,793 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 21 [2018-04-10 13:38:58,793 INFO L347 BasicCegarLoop]: Found error trace [2018-04-10 13:38:58,793 INFO L355 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2018-04-10 13:38:58,793 INFO L408 AbstractCegarLoop]: === Iteration 5 === [mainErr5RequiresViolation, mainErr13RequiresViolation, mainErr25AssertViolationMEMORY_FREE, mainErr14AssertViolationMEMORY_FREE, mainErr18RequiresViolation, mainErr0RequiresViolation, mainErr21RequiresViolation, mainErr3RequiresViolation, mainErr28EnsuresViolationMEMORY_LEAK, mainErr16RequiresViolation, mainErr2RequiresViolation, mainErr12RequiresViolation, mainErr6RequiresViolation, mainErr19RequiresViolation, mainErr24AssertViolationMEMORY_FREE, mainErr1RequiresViolation, mainErr17RequiresViolation, mainErr23AssertViolationMEMORY_FREE, mainErr9RequiresViolation, mainErr22AssertViolationMEMORY_FREE, mainErr7RequiresViolation, mainErr20RequiresViolation, mainErr11RequiresViolation, mainErr26AssertViolationMEMORY_FREE, mainErr8RequiresViolation, mainErr10RequiresViolation, mainErr4RequiresViolation, mainErr15AssertViolationMEMORY_FREE, mainErr27AssertViolationMEMORY_FREE, __U_MULTI_flength_test___false_valid_memtrack_i__appendErr2RequiresViolation, __U_MULTI_flength_test___false_valid_memtrack_i__appendErr18RequiresViolation, __U_MULTI_flength_test___false_valid_memtrack_i__appendErr23RequiresViolation, __U_MULTI_flength_test___false_valid_memtrack_i__appendErr21RequiresViolation, __U_MULTI_flength_test___false_valid_memtrack_i__appendErr13RequiresViolation, __U_MULTI_flength_test___false_valid_memtrack_i__appendErr24RequiresViolation, __U_MULTI_flength_test___false_valid_memtrack_i__appendErr4RequiresViolation, __U_MULTI_flength_test___false_valid_memtrack_i__appendErr10RequiresViolation, __U_MULTI_flength_test___false_valid_memtrack_i__appendErr20RequiresViolation, __U_MULTI_flength_test___false_valid_memtrack_i__appendErr3RequiresViolation, __U_MULTI_flength_test___false_valid_memtrack_i__appendErr11RequiresViolation, __U_MULTI_flength_test___false_valid_memtrack_i__appendErr7RequiresViolation, __U_MULTI_flength_test___false_valid_memtrack_i__appendErr0RequiresViolation, __U_MULTI_flength_test___false_valid_memtrack_i__appendErr14RequiresViolation, __U_MULTI_flength_test___false_valid_memtrack_i__appendErr22RequiresViolation, __U_MULTI_flength_test___false_valid_memtrack_i__appendErr12RequiresViolation, __U_MULTI_flength_test___false_valid_memtrack_i__appendErr17RequiresViolation, __U_MULTI_flength_test___false_valid_memtrack_i__appendErr25RequiresViolation, __U_MULTI_flength_test___false_valid_memtrack_i__appendErr1RequiresViolation, __U_MULTI_flength_test___false_valid_memtrack_i__appendErr6RequiresViolation, __U_MULTI_flength_test___false_valid_memtrack_i__appendErr8RequiresViolation, __U_MULTI_flength_test___false_valid_memtrack_i__appendErr19RequiresViolation, __U_MULTI_flength_test___false_valid_memtrack_i__appendErr15RequiresViolation, __U_MULTI_flength_test___false_valid_memtrack_i__appendErr9RequiresViolation, __U_MULTI_flength_test___false_valid_memtrack_i__appendErr5RequiresViolation, __U_MULTI_flength_test___false_valid_memtrack_i__appendErr16RequiresViolation]=== [2018-04-10 13:38:58,793 INFO L82 PathProgramCache]: Analyzing trace with hash -1451976942, now seen corresponding path program 1 times [2018-04-10 13:38:58,793 INFO L213 ckRefinementStrategy]: Switched to mode SMTINTERPOL_TREE_INTERPOLANTS [2018-04-10 13:38:58,793 INFO L68 tionRefinementEngine]: Using refinement strategy CamelRefinementStrategy [2018-04-10 13:38:58,794 INFO L119 rtionOrderModulation]: Craig nested/tree interpolation forces the following order [2018-04-10 13:38:58,794 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-04-10 13:38:58,794 INFO L119 rtionOrderModulation]: Craig nested/tree interpolation forces the following order [2018-04-10 13:38:58,803 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-04-10 13:38:58,803 WARN L137 erpolLogProxyWrapper]: Using partial proofs (cut at CNF-level). Set option :produce-proofs to true to get complete proofs. [2018-04-10 13:38:58,843 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-04-10 13:38:58,843 INFO L320 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2018-04-10 13:38:58,843 INFO L335 seRefinementStrategy]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2018-04-10 13:38:58,843 INFO L442 AbstractCegarLoop]: Interpolant automaton has 4 states [2018-04-10 13:38:58,843 INFO L132 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2018-04-10 13:38:58,843 INFO L133 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2018-04-10 13:38:58,844 INFO L87 Difference]: Start difference. First operand 133 states and 141 transitions. Second operand 4 states. [2018-04-10 13:38:58,915 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-04-10 13:38:58,915 INFO L93 Difference]: Finished difference Result 128 states and 136 transitions. [2018-04-10 13:38:58,915 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2018-04-10 13:38:58,915 INFO L78 Accepts]: Start accepts. Automaton has 4 states. Word has length 20 [2018-04-10 13:38:58,916 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-04-10 13:38:58,916 INFO L225 Difference]: With dead ends: 128 [2018-04-10 13:38:58,916 INFO L226 Difference]: Without dead ends: 128 [2018-04-10 13:38:58,916 INFO L567 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 [2018-04-10 13:38:58,917 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 128 states. [2018-04-10 13:38:58,920 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 128 to 128. [2018-04-10 13:38:58,921 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 128 states. [2018-04-10 13:38:58,925 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 128 states to 128 states and 136 transitions. [2018-04-10 13:38:58,925 INFO L78 Accepts]: Start accepts. Automaton has 128 states and 136 transitions. Word has length 20 [2018-04-10 13:38:58,925 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-04-10 13:38:58,926 INFO L459 AbstractCegarLoop]: Abstraction has 128 states and 136 transitions. [2018-04-10 13:38:58,926 INFO L460 AbstractCegarLoop]: Interpolant automaton has 4 states. [2018-04-10 13:38:58,926 INFO L276 IsEmpty]: Start isEmpty. Operand 128 states and 136 transitions. [2018-04-10 13:38:58,926 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 21 [2018-04-10 13:38:58,926 INFO L347 BasicCegarLoop]: Found error trace [2018-04-10 13:38:58,926 INFO L355 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2018-04-10 13:38:58,926 INFO L408 AbstractCegarLoop]: === Iteration 6 === [mainErr5RequiresViolation, mainErr13RequiresViolation, mainErr25AssertViolationMEMORY_FREE, mainErr14AssertViolationMEMORY_FREE, mainErr18RequiresViolation, mainErr0RequiresViolation, mainErr21RequiresViolation, mainErr3RequiresViolation, mainErr28EnsuresViolationMEMORY_LEAK, mainErr16RequiresViolation, mainErr2RequiresViolation, mainErr12RequiresViolation, mainErr6RequiresViolation, mainErr19RequiresViolation, mainErr24AssertViolationMEMORY_FREE, mainErr1RequiresViolation, mainErr17RequiresViolation, mainErr23AssertViolationMEMORY_FREE, mainErr9RequiresViolation, mainErr22AssertViolationMEMORY_FREE, mainErr7RequiresViolation, mainErr20RequiresViolation, mainErr11RequiresViolation, mainErr26AssertViolationMEMORY_FREE, mainErr8RequiresViolation, mainErr10RequiresViolation, mainErr4RequiresViolation, mainErr15AssertViolationMEMORY_FREE, mainErr27AssertViolationMEMORY_FREE, __U_MULTI_flength_test___false_valid_memtrack_i__appendErr2RequiresViolation, __U_MULTI_flength_test___false_valid_memtrack_i__appendErr18RequiresViolation, __U_MULTI_flength_test___false_valid_memtrack_i__appendErr23RequiresViolation, __U_MULTI_flength_test___false_valid_memtrack_i__appendErr21RequiresViolation, __U_MULTI_flength_test___false_valid_memtrack_i__appendErr13RequiresViolation, __U_MULTI_flength_test___false_valid_memtrack_i__appendErr24RequiresViolation, __U_MULTI_flength_test___false_valid_memtrack_i__appendErr4RequiresViolation, __U_MULTI_flength_test___false_valid_memtrack_i__appendErr10RequiresViolation, __U_MULTI_flength_test___false_valid_memtrack_i__appendErr20RequiresViolation, __U_MULTI_flength_test___false_valid_memtrack_i__appendErr3RequiresViolation, __U_MULTI_flength_test___false_valid_memtrack_i__appendErr11RequiresViolation, __U_MULTI_flength_test___false_valid_memtrack_i__appendErr7RequiresViolation, __U_MULTI_flength_test___false_valid_memtrack_i__appendErr0RequiresViolation, __U_MULTI_flength_test___false_valid_memtrack_i__appendErr14RequiresViolation, __U_MULTI_flength_test___false_valid_memtrack_i__appendErr22RequiresViolation, __U_MULTI_flength_test___false_valid_memtrack_i__appendErr12RequiresViolation, __U_MULTI_flength_test___false_valid_memtrack_i__appendErr17RequiresViolation, __U_MULTI_flength_test___false_valid_memtrack_i__appendErr25RequiresViolation, __U_MULTI_flength_test___false_valid_memtrack_i__appendErr1RequiresViolation, __U_MULTI_flength_test___false_valid_memtrack_i__appendErr6RequiresViolation, __U_MULTI_flength_test___false_valid_memtrack_i__appendErr8RequiresViolation, __U_MULTI_flength_test___false_valid_memtrack_i__appendErr19RequiresViolation, __U_MULTI_flength_test___false_valid_memtrack_i__appendErr15RequiresViolation, __U_MULTI_flength_test___false_valid_memtrack_i__appendErr9RequiresViolation, __U_MULTI_flength_test___false_valid_memtrack_i__appendErr5RequiresViolation, __U_MULTI_flength_test___false_valid_memtrack_i__appendErr16RequiresViolation]=== [2018-04-10 13:38:58,926 INFO L82 PathProgramCache]: Analyzing trace with hash -1451976941, now seen corresponding path program 1 times [2018-04-10 13:38:58,926 INFO L213 ckRefinementStrategy]: Switched to mode SMTINTERPOL_TREE_INTERPOLANTS [2018-04-10 13:38:58,926 INFO L68 tionRefinementEngine]: Using refinement strategy CamelRefinementStrategy [2018-04-10 13:38:58,927 INFO L119 rtionOrderModulation]: Craig nested/tree interpolation forces the following order [2018-04-10 13:38:58,927 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-04-10 13:38:58,927 INFO L119 rtionOrderModulation]: Craig nested/tree interpolation forces the following order [2018-04-10 13:38:58,939 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-04-10 13:38:58,939 WARN L137 erpolLogProxyWrapper]: Using partial proofs (cut at CNF-level). Set option :produce-proofs to true to get complete proofs. [2018-04-10 13:38:58,973 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-04-10 13:38:58,973 INFO L320 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2018-04-10 13:38:58,973 INFO L335 seRefinementStrategy]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2018-04-10 13:38:58,973 INFO L442 AbstractCegarLoop]: Interpolant automaton has 4 states [2018-04-10 13:38:58,973 INFO L132 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2018-04-10 13:38:58,973 INFO L133 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2018-04-10 13:38:58,973 INFO L87 Difference]: Start difference. First operand 128 states and 136 transitions. Second operand 4 states. [2018-04-10 13:38:59,021 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-04-10 13:38:59,021 INFO L93 Difference]: Finished difference Result 123 states and 131 transitions. [2018-04-10 13:38:59,022 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2018-04-10 13:38:59,022 INFO L78 Accepts]: Start accepts. Automaton has 4 states. Word has length 20 [2018-04-10 13:38:59,022 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-04-10 13:38:59,022 INFO L225 Difference]: With dead ends: 123 [2018-04-10 13:38:59,023 INFO L226 Difference]: Without dead ends: 123 [2018-04-10 13:38:59,023 INFO L567 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 [2018-04-10 13:38:59,023 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 123 states. [2018-04-10 13:38:59,026 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 123 to 123. [2018-04-10 13:38:59,026 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 123 states. [2018-04-10 13:38:59,027 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 123 states to 123 states and 131 transitions. [2018-04-10 13:38:59,027 INFO L78 Accepts]: Start accepts. Automaton has 123 states and 131 transitions. Word has length 20 [2018-04-10 13:38:59,027 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-04-10 13:38:59,027 INFO L459 AbstractCegarLoop]: Abstraction has 123 states and 131 transitions. [2018-04-10 13:38:59,027 INFO L460 AbstractCegarLoop]: Interpolant automaton has 4 states. [2018-04-10 13:38:59,027 INFO L276 IsEmpty]: Start isEmpty. Operand 123 states and 131 transitions. [2018-04-10 13:38:59,027 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 22 [2018-04-10 13:38:59,028 INFO L347 BasicCegarLoop]: Found error trace [2018-04-10 13:38:59,028 INFO L355 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2018-04-10 13:38:59,028 INFO L408 AbstractCegarLoop]: === Iteration 7 === [mainErr5RequiresViolation, mainErr13RequiresViolation, mainErr25AssertViolationMEMORY_FREE, mainErr14AssertViolationMEMORY_FREE, mainErr18RequiresViolation, mainErr0RequiresViolation, mainErr21RequiresViolation, mainErr3RequiresViolation, mainErr28EnsuresViolationMEMORY_LEAK, mainErr16RequiresViolation, mainErr2RequiresViolation, mainErr12RequiresViolation, mainErr6RequiresViolation, mainErr19RequiresViolation, mainErr24AssertViolationMEMORY_FREE, mainErr1RequiresViolation, mainErr17RequiresViolation, mainErr23AssertViolationMEMORY_FREE, mainErr9RequiresViolation, mainErr22AssertViolationMEMORY_FREE, mainErr7RequiresViolation, mainErr20RequiresViolation, mainErr11RequiresViolation, mainErr26AssertViolationMEMORY_FREE, mainErr8RequiresViolation, mainErr10RequiresViolation, mainErr4RequiresViolation, mainErr15AssertViolationMEMORY_FREE, mainErr27AssertViolationMEMORY_FREE, __U_MULTI_flength_test___false_valid_memtrack_i__appendErr2RequiresViolation, __U_MULTI_flength_test___false_valid_memtrack_i__appendErr18RequiresViolation, __U_MULTI_flength_test___false_valid_memtrack_i__appendErr23RequiresViolation, __U_MULTI_flength_test___false_valid_memtrack_i__appendErr21RequiresViolation, __U_MULTI_flength_test___false_valid_memtrack_i__appendErr13RequiresViolation, __U_MULTI_flength_test___false_valid_memtrack_i__appendErr24RequiresViolation, __U_MULTI_flength_test___false_valid_memtrack_i__appendErr4RequiresViolation, __U_MULTI_flength_test___false_valid_memtrack_i__appendErr10RequiresViolation, __U_MULTI_flength_test___false_valid_memtrack_i__appendErr20RequiresViolation, __U_MULTI_flength_test___false_valid_memtrack_i__appendErr3RequiresViolation, __U_MULTI_flength_test___false_valid_memtrack_i__appendErr11RequiresViolation, __U_MULTI_flength_test___false_valid_memtrack_i__appendErr7RequiresViolation, __U_MULTI_flength_test___false_valid_memtrack_i__appendErr0RequiresViolation, __U_MULTI_flength_test___false_valid_memtrack_i__appendErr14RequiresViolation, __U_MULTI_flength_test___false_valid_memtrack_i__appendErr22RequiresViolation, __U_MULTI_flength_test___false_valid_memtrack_i__appendErr12RequiresViolation, __U_MULTI_flength_test___false_valid_memtrack_i__appendErr17RequiresViolation, __U_MULTI_flength_test___false_valid_memtrack_i__appendErr25RequiresViolation, __U_MULTI_flength_test___false_valid_memtrack_i__appendErr1RequiresViolation, __U_MULTI_flength_test___false_valid_memtrack_i__appendErr6RequiresViolation, __U_MULTI_flength_test___false_valid_memtrack_i__appendErr8RequiresViolation, __U_MULTI_flength_test___false_valid_memtrack_i__appendErr19RequiresViolation, __U_MULTI_flength_test___false_valid_memtrack_i__appendErr15RequiresViolation, __U_MULTI_flength_test___false_valid_memtrack_i__appendErr9RequiresViolation, __U_MULTI_flength_test___false_valid_memtrack_i__appendErr5RequiresViolation, __U_MULTI_flength_test___false_valid_memtrack_i__appendErr16RequiresViolation]=== [2018-04-10 13:38:59,028 INFO L82 PathProgramCache]: Analyzing trace with hash -2061612264, now seen corresponding path program 1 times [2018-04-10 13:38:59,028 INFO L213 ckRefinementStrategy]: Switched to mode SMTINTERPOL_TREE_INTERPOLANTS [2018-04-10 13:38:59,028 INFO L68 tionRefinementEngine]: Using refinement strategy CamelRefinementStrategy [2018-04-10 13:38:59,028 INFO L119 rtionOrderModulation]: Craig nested/tree interpolation forces the following order [2018-04-10 13:38:59,028 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-04-10 13:38:59,028 INFO L119 rtionOrderModulation]: Craig nested/tree interpolation forces the following order [2018-04-10 13:38:59,040 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-04-10 13:38:59,040 WARN L137 erpolLogProxyWrapper]: Using partial proofs (cut at CNF-level). Set option :produce-proofs to true to get complete proofs. [2018-04-10 13:38:59,090 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-04-10 13:38:59,090 INFO L320 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2018-04-10 13:38:59,091 INFO L335 seRefinementStrategy]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2018-04-10 13:38:59,091 INFO L442 AbstractCegarLoop]: Interpolant automaton has 8 states [2018-04-10 13:38:59,091 INFO L132 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2018-04-10 13:38:59,091 INFO L133 InterpolantAutomaton]: CoverageRelationStatistics Valid=16, Invalid=40, Unknown=0, NotChecked=0, Total=56 [2018-04-10 13:38:59,092 INFO L87 Difference]: Start difference. First operand 123 states and 131 transitions. Second operand 8 states. [2018-04-10 13:38:59,268 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-04-10 13:38:59,268 INFO L93 Difference]: Finished difference Result 230 states and 245 transitions. [2018-04-10 13:38:59,268 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2018-04-10 13:38:59,268 INFO L78 Accepts]: Start accepts. Automaton has 8 states. Word has length 21 [2018-04-10 13:38:59,268 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-04-10 13:38:59,269 INFO L225 Difference]: With dead ends: 230 [2018-04-10 13:38:59,269 INFO L226 Difference]: Without dead ends: 230 [2018-04-10 13:38:59,269 INFO L567 BasicCegarLoop]: 0 DeclaredPredicates, 10 GetRequests, 2 SyntacticMatches, 1 SemanticMatches, 7 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 6 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=22, Invalid=50, Unknown=0, NotChecked=0, Total=72 [2018-04-10 13:38:59,270 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 230 states. [2018-04-10 13:38:59,273 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 230 to 144. [2018-04-10 13:38:59,274 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 144 states. [2018-04-10 13:38:59,274 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 144 states to 144 states and 164 transitions. [2018-04-10 13:38:59,275 INFO L78 Accepts]: Start accepts. Automaton has 144 states and 164 transitions. Word has length 21 [2018-04-10 13:38:59,275 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-04-10 13:38:59,275 INFO L459 AbstractCegarLoop]: Abstraction has 144 states and 164 transitions. [2018-04-10 13:38:59,275 INFO L460 AbstractCegarLoop]: Interpolant automaton has 8 states. [2018-04-10 13:38:59,275 INFO L276 IsEmpty]: Start isEmpty. Operand 144 states and 164 transitions. [2018-04-10 13:38:59,276 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 22 [2018-04-10 13:38:59,276 INFO L347 BasicCegarLoop]: Found error trace [2018-04-10 13:38:59,276 INFO L355 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2018-04-10 13:38:59,276 INFO L408 AbstractCegarLoop]: === Iteration 8 === [mainErr5RequiresViolation, mainErr13RequiresViolation, mainErr25AssertViolationMEMORY_FREE, mainErr14AssertViolationMEMORY_FREE, mainErr18RequiresViolation, mainErr0RequiresViolation, mainErr21RequiresViolation, mainErr3RequiresViolation, mainErr28EnsuresViolationMEMORY_LEAK, mainErr16RequiresViolation, mainErr2RequiresViolation, mainErr12RequiresViolation, mainErr6RequiresViolation, mainErr19RequiresViolation, mainErr24AssertViolationMEMORY_FREE, mainErr1RequiresViolation, mainErr17RequiresViolation, mainErr23AssertViolationMEMORY_FREE, mainErr9RequiresViolation, mainErr22AssertViolationMEMORY_FREE, mainErr7RequiresViolation, mainErr20RequiresViolation, mainErr11RequiresViolation, mainErr26AssertViolationMEMORY_FREE, mainErr8RequiresViolation, mainErr10RequiresViolation, mainErr4RequiresViolation, mainErr15AssertViolationMEMORY_FREE, mainErr27AssertViolationMEMORY_FREE, __U_MULTI_flength_test___false_valid_memtrack_i__appendErr2RequiresViolation, __U_MULTI_flength_test___false_valid_memtrack_i__appendErr18RequiresViolation, __U_MULTI_flength_test___false_valid_memtrack_i__appendErr23RequiresViolation, __U_MULTI_flength_test___false_valid_memtrack_i__appendErr21RequiresViolation, __U_MULTI_flength_test___false_valid_memtrack_i__appendErr13RequiresViolation, __U_MULTI_flength_test___false_valid_memtrack_i__appendErr24RequiresViolation, __U_MULTI_flength_test___false_valid_memtrack_i__appendErr4RequiresViolation, __U_MULTI_flength_test___false_valid_memtrack_i__appendErr10RequiresViolation, __U_MULTI_flength_test___false_valid_memtrack_i__appendErr20RequiresViolation, __U_MULTI_flength_test___false_valid_memtrack_i__appendErr3RequiresViolation, __U_MULTI_flength_test___false_valid_memtrack_i__appendErr11RequiresViolation, __U_MULTI_flength_test___false_valid_memtrack_i__appendErr7RequiresViolation, __U_MULTI_flength_test___false_valid_memtrack_i__appendErr0RequiresViolation, __U_MULTI_flength_test___false_valid_memtrack_i__appendErr14RequiresViolation, __U_MULTI_flength_test___false_valid_memtrack_i__appendErr22RequiresViolation, __U_MULTI_flength_test___false_valid_memtrack_i__appendErr12RequiresViolation, __U_MULTI_flength_test___false_valid_memtrack_i__appendErr17RequiresViolation, __U_MULTI_flength_test___false_valid_memtrack_i__appendErr25RequiresViolation, __U_MULTI_flength_test___false_valid_memtrack_i__appendErr1RequiresViolation, __U_MULTI_flength_test___false_valid_memtrack_i__appendErr6RequiresViolation, __U_MULTI_flength_test___false_valid_memtrack_i__appendErr8RequiresViolation, __U_MULTI_flength_test___false_valid_memtrack_i__appendErr19RequiresViolation, __U_MULTI_flength_test___false_valid_memtrack_i__appendErr15RequiresViolation, __U_MULTI_flength_test___false_valid_memtrack_i__appendErr9RequiresViolation, __U_MULTI_flength_test___false_valid_memtrack_i__appendErr5RequiresViolation, __U_MULTI_flength_test___false_valid_memtrack_i__appendErr16RequiresViolation]=== [2018-04-10 13:38:59,276 INFO L82 PathProgramCache]: Analyzing trace with hash -2061612263, now seen corresponding path program 1 times [2018-04-10 13:38:59,276 INFO L213 ckRefinementStrategy]: Switched to mode SMTINTERPOL_TREE_INTERPOLANTS [2018-04-10 13:38:59,276 INFO L68 tionRefinementEngine]: Using refinement strategy CamelRefinementStrategy [2018-04-10 13:38:59,277 INFO L119 rtionOrderModulation]: Craig nested/tree interpolation forces the following order [2018-04-10 13:38:59,277 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-04-10 13:38:59,277 INFO L119 rtionOrderModulation]: Craig nested/tree interpolation forces the following order [2018-04-10 13:38:59,289 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-04-10 13:38:59,290 WARN L137 erpolLogProxyWrapper]: Using partial proofs (cut at CNF-level). Set option :produce-proofs to true to get complete proofs. [2018-04-10 13:38:59,376 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-04-10 13:38:59,377 INFO L320 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2018-04-10 13:38:59,377 INFO L335 seRefinementStrategy]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2018-04-10 13:38:59,377 INFO L442 AbstractCegarLoop]: Interpolant automaton has 9 states [2018-04-10 13:38:59,377 INFO L132 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2018-04-10 13:38:59,378 INFO L133 InterpolantAutomaton]: CoverageRelationStatistics Valid=19, Invalid=53, Unknown=0, NotChecked=0, Total=72 [2018-04-10 13:38:59,378 INFO L87 Difference]: Start difference. First operand 144 states and 164 transitions. Second operand 9 states. [2018-04-10 13:38:59,636 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-04-10 13:38:59,637 INFO L93 Difference]: Finished difference Result 205 states and 220 transitions. [2018-04-10 13:38:59,637 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2018-04-10 13:38:59,637 INFO L78 Accepts]: Start accepts. Automaton has 9 states. Word has length 21 [2018-04-10 13:38:59,637 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-04-10 13:38:59,638 INFO L225 Difference]: With dead ends: 205 [2018-04-10 13:38:59,638 INFO L226 Difference]: Without dead ends: 205 [2018-04-10 13:38:59,638 INFO L567 BasicCegarLoop]: 0 DeclaredPredicates, 13 GetRequests, 1 SyntacticMatches, 1 SemanticMatches, 11 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 13 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=44, Invalid=112, Unknown=0, NotChecked=0, Total=156 [2018-04-10 13:38:59,638 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 205 states. [2018-04-10 13:38:59,641 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 205 to 178. [2018-04-10 13:38:59,641 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 178 states. [2018-04-10 13:38:59,642 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 178 states to 178 states and 210 transitions. [2018-04-10 13:38:59,642 INFO L78 Accepts]: Start accepts. Automaton has 178 states and 210 transitions. Word has length 21 [2018-04-10 13:38:59,642 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-04-10 13:38:59,642 INFO L459 AbstractCegarLoop]: Abstraction has 178 states and 210 transitions. [2018-04-10 13:38:59,642 INFO L460 AbstractCegarLoop]: Interpolant automaton has 9 states. [2018-04-10 13:38:59,642 INFO L276 IsEmpty]: Start isEmpty. Operand 178 states and 210 transitions. [2018-04-10 13:38:59,643 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 31 [2018-04-10 13:38:59,643 INFO L347 BasicCegarLoop]: Found error trace [2018-04-10 13:38:59,643 INFO L355 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2018-04-10 13:38:59,643 INFO L408 AbstractCegarLoop]: === Iteration 9 === [mainErr5RequiresViolation, mainErr13RequiresViolation, mainErr25AssertViolationMEMORY_FREE, mainErr14AssertViolationMEMORY_FREE, mainErr18RequiresViolation, mainErr0RequiresViolation, mainErr21RequiresViolation, mainErr3RequiresViolation, mainErr28EnsuresViolationMEMORY_LEAK, mainErr16RequiresViolation, mainErr2RequiresViolation, mainErr12RequiresViolation, mainErr6RequiresViolation, mainErr19RequiresViolation, mainErr24AssertViolationMEMORY_FREE, mainErr1RequiresViolation, mainErr17RequiresViolation, mainErr23AssertViolationMEMORY_FREE, mainErr9RequiresViolation, mainErr22AssertViolationMEMORY_FREE, mainErr7RequiresViolation, mainErr20RequiresViolation, mainErr11RequiresViolation, mainErr26AssertViolationMEMORY_FREE, mainErr8RequiresViolation, mainErr10RequiresViolation, mainErr4RequiresViolation, mainErr15AssertViolationMEMORY_FREE, mainErr27AssertViolationMEMORY_FREE, __U_MULTI_flength_test___false_valid_memtrack_i__appendErr2RequiresViolation, __U_MULTI_flength_test___false_valid_memtrack_i__appendErr18RequiresViolation, __U_MULTI_flength_test___false_valid_memtrack_i__appendErr23RequiresViolation, __U_MULTI_flength_test___false_valid_memtrack_i__appendErr21RequiresViolation, __U_MULTI_flength_test___false_valid_memtrack_i__appendErr13RequiresViolation, __U_MULTI_flength_test___false_valid_memtrack_i__appendErr24RequiresViolation, __U_MULTI_flength_test___false_valid_memtrack_i__appendErr4RequiresViolation, __U_MULTI_flength_test___false_valid_memtrack_i__appendErr10RequiresViolation, __U_MULTI_flength_test___false_valid_memtrack_i__appendErr20RequiresViolation, __U_MULTI_flength_test___false_valid_memtrack_i__appendErr3RequiresViolation, __U_MULTI_flength_test___false_valid_memtrack_i__appendErr11RequiresViolation, __U_MULTI_flength_test___false_valid_memtrack_i__appendErr7RequiresViolation, __U_MULTI_flength_test___false_valid_memtrack_i__appendErr0RequiresViolation, __U_MULTI_flength_test___false_valid_memtrack_i__appendErr14RequiresViolation, __U_MULTI_flength_test___false_valid_memtrack_i__appendErr22RequiresViolation, __U_MULTI_flength_test___false_valid_memtrack_i__appendErr12RequiresViolation, __U_MULTI_flength_test___false_valid_memtrack_i__appendErr17RequiresViolation, __U_MULTI_flength_test___false_valid_memtrack_i__appendErr25RequiresViolation, __U_MULTI_flength_test___false_valid_memtrack_i__appendErr1RequiresViolation, __U_MULTI_flength_test___false_valid_memtrack_i__appendErr6RequiresViolation, __U_MULTI_flength_test___false_valid_memtrack_i__appendErr8RequiresViolation, __U_MULTI_flength_test___false_valid_memtrack_i__appendErr19RequiresViolation, __U_MULTI_flength_test___false_valid_memtrack_i__appendErr15RequiresViolation, __U_MULTI_flength_test___false_valid_memtrack_i__appendErr9RequiresViolation, __U_MULTI_flength_test___false_valid_memtrack_i__appendErr5RequiresViolation, __U_MULTI_flength_test___false_valid_memtrack_i__appendErr16RequiresViolation]=== [2018-04-10 13:38:59,643 INFO L82 PathProgramCache]: Analyzing trace with hash 945598509, now seen corresponding path program 1 times [2018-04-10 13:38:59,643 INFO L213 ckRefinementStrategy]: Switched to mode SMTINTERPOL_TREE_INTERPOLANTS [2018-04-10 13:38:59,643 INFO L68 tionRefinementEngine]: Using refinement strategy CamelRefinementStrategy [2018-04-10 13:38:59,644 INFO L119 rtionOrderModulation]: Craig nested/tree interpolation forces the following order [2018-04-10 13:38:59,644 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-04-10 13:38:59,644 INFO L119 rtionOrderModulation]: Craig nested/tree interpolation forces the following order [2018-04-10 13:38:59,660 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-04-10 13:38:59,661 WARN L137 erpolLogProxyWrapper]: Using partial proofs (cut at CNF-level). Set option :produce-proofs to true to get complete proofs. [2018-04-10 13:38:59,835 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-04-10 13:38:59,835 INFO L320 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2018-04-10 13:38:59,835 INFO L335 seRefinementStrategy]: Number of different interpolants: perfect sequences [11] imperfect sequences [] total 11 [2018-04-10 13:38:59,835 INFO L442 AbstractCegarLoop]: Interpolant automaton has 11 states [2018-04-10 13:38:59,836 INFO L132 InterpolantAutomaton]: Constructing interpolant automaton starting with 11 interpolants. [2018-04-10 13:38:59,836 INFO L133 InterpolantAutomaton]: CoverageRelationStatistics Valid=21, Invalid=89, Unknown=0, NotChecked=0, Total=110 [2018-04-10 13:38:59,836 INFO L87 Difference]: Start difference. First operand 178 states and 210 transitions. Second operand 11 states. [2018-04-10 13:39:00,124 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-04-10 13:39:00,125 INFO L93 Difference]: Finished difference Result 199 states and 233 transitions. [2018-04-10 13:39:00,125 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 12 states. [2018-04-10 13:39:00,125 INFO L78 Accepts]: Start accepts. Automaton has 11 states. Word has length 30 [2018-04-10 13:39:00,127 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-04-10 13:39:00,128 INFO L225 Difference]: With dead ends: 199 [2018-04-10 13:39:00,128 INFO L226 Difference]: Without dead ends: 199 [2018-04-10 13:39:00,128 INFO L567 BasicCegarLoop]: 0 DeclaredPredicates, 24 GetRequests, 8 SyntacticMatches, 0 SemanticMatches, 16 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 37 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=74, Invalid=232, Unknown=0, NotChecked=0, Total=306 [2018-04-10 13:39:00,129 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 199 states. [2018-04-10 13:39:00,134 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 199 to 187. [2018-04-10 13:39:00,135 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 187 states. [2018-04-10 13:39:00,135 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 187 states to 187 states and 220 transitions. [2018-04-10 13:39:00,136 INFO L78 Accepts]: Start accepts. Automaton has 187 states and 220 transitions. Word has length 30 [2018-04-10 13:39:00,136 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-04-10 13:39:00,136 INFO L459 AbstractCegarLoop]: Abstraction has 187 states and 220 transitions. [2018-04-10 13:39:00,136 INFO L460 AbstractCegarLoop]: Interpolant automaton has 11 states. [2018-04-10 13:39:00,136 INFO L276 IsEmpty]: Start isEmpty. Operand 187 states and 220 transitions. [2018-04-10 13:39:00,137 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 33 [2018-04-10 13:39:00,137 INFO L347 BasicCegarLoop]: Found error trace [2018-04-10 13:39:00,137 INFO L355 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2018-04-10 13:39:00,137 INFO L408 AbstractCegarLoop]: === Iteration 10 === [mainErr5RequiresViolation, mainErr13RequiresViolation, mainErr25AssertViolationMEMORY_FREE, mainErr14AssertViolationMEMORY_FREE, mainErr18RequiresViolation, mainErr0RequiresViolation, mainErr21RequiresViolation, mainErr3RequiresViolation, mainErr28EnsuresViolationMEMORY_LEAK, mainErr16RequiresViolation, mainErr2RequiresViolation, mainErr12RequiresViolation, mainErr6RequiresViolation, mainErr19RequiresViolation, mainErr24AssertViolationMEMORY_FREE, mainErr1RequiresViolation, mainErr17RequiresViolation, mainErr23AssertViolationMEMORY_FREE, mainErr9RequiresViolation, mainErr22AssertViolationMEMORY_FREE, mainErr7RequiresViolation, mainErr20RequiresViolation, mainErr11RequiresViolation, mainErr26AssertViolationMEMORY_FREE, mainErr8RequiresViolation, mainErr10RequiresViolation, mainErr4RequiresViolation, mainErr15AssertViolationMEMORY_FREE, mainErr27AssertViolationMEMORY_FREE, __U_MULTI_flength_test___false_valid_memtrack_i__appendErr2RequiresViolation, __U_MULTI_flength_test___false_valid_memtrack_i__appendErr18RequiresViolation, __U_MULTI_flength_test___false_valid_memtrack_i__appendErr23RequiresViolation, __U_MULTI_flength_test___false_valid_memtrack_i__appendErr21RequiresViolation, __U_MULTI_flength_test___false_valid_memtrack_i__appendErr13RequiresViolation, __U_MULTI_flength_test___false_valid_memtrack_i__appendErr24RequiresViolation, __U_MULTI_flength_test___false_valid_memtrack_i__appendErr4RequiresViolation, __U_MULTI_flength_test___false_valid_memtrack_i__appendErr10RequiresViolation, __U_MULTI_flength_test___false_valid_memtrack_i__appendErr20RequiresViolation, __U_MULTI_flength_test___false_valid_memtrack_i__appendErr3RequiresViolation, __U_MULTI_flength_test___false_valid_memtrack_i__appendErr11RequiresViolation, __U_MULTI_flength_test___false_valid_memtrack_i__appendErr7RequiresViolation, __U_MULTI_flength_test___false_valid_memtrack_i__appendErr0RequiresViolation, __U_MULTI_flength_test___false_valid_memtrack_i__appendErr14RequiresViolation, __U_MULTI_flength_test___false_valid_memtrack_i__appendErr22RequiresViolation, __U_MULTI_flength_test___false_valid_memtrack_i__appendErr12RequiresViolation, __U_MULTI_flength_test___false_valid_memtrack_i__appendErr17RequiresViolation, __U_MULTI_flength_test___false_valid_memtrack_i__appendErr25RequiresViolation, __U_MULTI_flength_test___false_valid_memtrack_i__appendErr1RequiresViolation, __U_MULTI_flength_test___false_valid_memtrack_i__appendErr6RequiresViolation, __U_MULTI_flength_test___false_valid_memtrack_i__appendErr8RequiresViolation, __U_MULTI_flength_test___false_valid_memtrack_i__appendErr19RequiresViolation, __U_MULTI_flength_test___false_valid_memtrack_i__appendErr15RequiresViolation, __U_MULTI_flength_test___false_valid_memtrack_i__appendErr9RequiresViolation, __U_MULTI_flength_test___false_valid_memtrack_i__appendErr5RequiresViolation, __U_MULTI_flength_test___false_valid_memtrack_i__appendErr16RequiresViolation]=== [2018-04-10 13:39:00,137 INFO L82 PathProgramCache]: Analyzing trace with hash 548364848, now seen corresponding path program 1 times [2018-04-10 13:39:00,137 INFO L213 ckRefinementStrategy]: Switched to mode SMTINTERPOL_TREE_INTERPOLANTS [2018-04-10 13:39:00,137 INFO L68 tionRefinementEngine]: Using refinement strategy CamelRefinementStrategy [2018-04-10 13:39:00,138 INFO L119 rtionOrderModulation]: Craig nested/tree interpolation forces the following order [2018-04-10 13:39:00,138 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-04-10 13:39:00,138 INFO L119 rtionOrderModulation]: Craig nested/tree interpolation forces the following order [2018-04-10 13:39:00,155 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-04-10 13:39:00,155 WARN L137 erpolLogProxyWrapper]: Using partial proofs (cut at CNF-level). Set option :produce-proofs to true to get complete proofs. [2018-04-10 13:39:00,467 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-04-10 13:39:00,467 INFO L320 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2018-04-10 13:39:00,467 INFO L335 seRefinementStrategy]: Number of different interpolants: perfect sequences [14] imperfect sequences [] total 14 [2018-04-10 13:39:00,467 INFO L442 AbstractCegarLoop]: Interpolant automaton has 14 states [2018-04-10 13:39:00,467 INFO L132 InterpolantAutomaton]: Constructing interpolant automaton starting with 14 interpolants. [2018-04-10 13:39:00,468 INFO L133 InterpolantAutomaton]: CoverageRelationStatistics Valid=34, Invalid=148, Unknown=0, NotChecked=0, Total=182 [2018-04-10 13:39:00,468 INFO L87 Difference]: Start difference. First operand 187 states and 220 transitions. Second operand 14 states. [2018-04-10 13:39:00,824 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-04-10 13:39:00,824 INFO L93 Difference]: Finished difference Result 248 states and 298 transitions. [2018-04-10 13:39:00,824 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 14 states. [2018-04-10 13:39:00,824 INFO L78 Accepts]: Start accepts. Automaton has 14 states. Word has length 32 [2018-04-10 13:39:00,824 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-04-10 13:39:00,825 INFO L225 Difference]: With dead ends: 248 [2018-04-10 13:39:00,825 INFO L226 Difference]: Without dead ends: 248 [2018-04-10 13:39:00,825 INFO L567 BasicCegarLoop]: 0 DeclaredPredicates, 29 GetRequests, 4 SyntacticMatches, 3 SemanticMatches, 22 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 74 ImplicationChecksByTransitivity, 0.3s TimeCoverageRelationStatistics Valid=114, Invalid=438, Unknown=0, NotChecked=0, Total=552 [2018-04-10 13:39:00,826 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 248 states. [2018-04-10 13:39:00,828 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 248 to 155. [2018-04-10 13:39:00,828 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 155 states. [2018-04-10 13:39:00,828 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 155 states to 155 states and 168 transitions. [2018-04-10 13:39:00,828 INFO L78 Accepts]: Start accepts. Automaton has 155 states and 168 transitions. Word has length 32 [2018-04-10 13:39:00,829 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-04-10 13:39:00,829 INFO L459 AbstractCegarLoop]: Abstraction has 155 states and 168 transitions. [2018-04-10 13:39:00,829 INFO L460 AbstractCegarLoop]: Interpolant automaton has 14 states. [2018-04-10 13:39:00,829 INFO L276 IsEmpty]: Start isEmpty. Operand 155 states and 168 transitions. [2018-04-10 13:39:00,829 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 41 [2018-04-10 13:39:00,829 INFO L347 BasicCegarLoop]: Found error trace [2018-04-10 13:39:00,830 INFO L355 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2018-04-10 13:39:00,830 INFO L408 AbstractCegarLoop]: === Iteration 11 === [mainErr5RequiresViolation, mainErr13RequiresViolation, mainErr25AssertViolationMEMORY_FREE, mainErr14AssertViolationMEMORY_FREE, mainErr18RequiresViolation, mainErr0RequiresViolation, mainErr21RequiresViolation, mainErr3RequiresViolation, mainErr28EnsuresViolationMEMORY_LEAK, mainErr16RequiresViolation, mainErr2RequiresViolation, mainErr12RequiresViolation, mainErr6RequiresViolation, mainErr19RequiresViolation, mainErr24AssertViolationMEMORY_FREE, mainErr1RequiresViolation, mainErr17RequiresViolation, mainErr23AssertViolationMEMORY_FREE, mainErr9RequiresViolation, mainErr22AssertViolationMEMORY_FREE, mainErr7RequiresViolation, mainErr20RequiresViolation, mainErr11RequiresViolation, mainErr26AssertViolationMEMORY_FREE, mainErr8RequiresViolation, mainErr10RequiresViolation, mainErr4RequiresViolation, mainErr15AssertViolationMEMORY_FREE, mainErr27AssertViolationMEMORY_FREE, __U_MULTI_flength_test___false_valid_memtrack_i__appendErr2RequiresViolation, __U_MULTI_flength_test___false_valid_memtrack_i__appendErr18RequiresViolation, __U_MULTI_flength_test___false_valid_memtrack_i__appendErr23RequiresViolation, __U_MULTI_flength_test___false_valid_memtrack_i__appendErr21RequiresViolation, __U_MULTI_flength_test___false_valid_memtrack_i__appendErr13RequiresViolation, __U_MULTI_flength_test___false_valid_memtrack_i__appendErr24RequiresViolation, __U_MULTI_flength_test___false_valid_memtrack_i__appendErr4RequiresViolation, __U_MULTI_flength_test___false_valid_memtrack_i__appendErr10RequiresViolation, __U_MULTI_flength_test___false_valid_memtrack_i__appendErr20RequiresViolation, __U_MULTI_flength_test___false_valid_memtrack_i__appendErr3RequiresViolation, __U_MULTI_flength_test___false_valid_memtrack_i__appendErr11RequiresViolation, __U_MULTI_flength_test___false_valid_memtrack_i__appendErr7RequiresViolation, __U_MULTI_flength_test___false_valid_memtrack_i__appendErr0RequiresViolation, __U_MULTI_flength_test___false_valid_memtrack_i__appendErr14RequiresViolation, __U_MULTI_flength_test___false_valid_memtrack_i__appendErr22RequiresViolation, __U_MULTI_flength_test___false_valid_memtrack_i__appendErr12RequiresViolation, __U_MULTI_flength_test___false_valid_memtrack_i__appendErr17RequiresViolation, __U_MULTI_flength_test___false_valid_memtrack_i__appendErr25RequiresViolation, __U_MULTI_flength_test___false_valid_memtrack_i__appendErr1RequiresViolation, __U_MULTI_flength_test___false_valid_memtrack_i__appendErr6RequiresViolation, __U_MULTI_flength_test___false_valid_memtrack_i__appendErr8RequiresViolation, __U_MULTI_flength_test___false_valid_memtrack_i__appendErr19RequiresViolation, __U_MULTI_flength_test___false_valid_memtrack_i__appendErr15RequiresViolation, __U_MULTI_flength_test___false_valid_memtrack_i__appendErr9RequiresViolation, __U_MULTI_flength_test___false_valid_memtrack_i__appendErr5RequiresViolation, __U_MULTI_flength_test___false_valid_memtrack_i__appendErr16RequiresViolation]=== [2018-04-10 13:39:00,830 INFO L82 PathProgramCache]: Analyzing trace with hash 1723783449, now seen corresponding path program 1 times [2018-04-10 13:39:00,830 INFO L213 ckRefinementStrategy]: Switched to mode SMTINTERPOL_TREE_INTERPOLANTS [2018-04-10 13:39:00,830 INFO L68 tionRefinementEngine]: Using refinement strategy CamelRefinementStrategy [2018-04-10 13:39:00,830 INFO L119 rtionOrderModulation]: Craig nested/tree interpolation forces the following order [2018-04-10 13:39:00,831 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-04-10 13:39:00,831 INFO L119 rtionOrderModulation]: Craig nested/tree interpolation forces the following order [2018-04-10 13:39:00,842 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-04-10 13:39:00,843 WARN L137 erpolLogProxyWrapper]: Using partial proofs (cut at CNF-level). Set option :produce-proofs to true to get complete proofs. [2018-04-10 13:39:00,872 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-04-10 13:39:00,872 INFO L320 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2018-04-10 13:39:00,873 INFO L335 seRefinementStrategy]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2018-04-10 13:39:00,873 INFO L442 AbstractCegarLoop]: Interpolant automaton has 3 states [2018-04-10 13:39:00,873 INFO L132 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2018-04-10 13:39:00,873 INFO L133 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2018-04-10 13:39:00,873 INFO L87 Difference]: Start difference. First operand 155 states and 168 transitions. Second operand 3 states. [2018-04-10 13:39:00,880 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-04-10 13:39:00,880 INFO L93 Difference]: Finished difference Result 164 states and 175 transitions. [2018-04-10 13:39:00,880 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2018-04-10 13:39:00,880 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 40 [2018-04-10 13:39:00,881 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-04-10 13:39:00,881 INFO L225 Difference]: With dead ends: 164 [2018-04-10 13:39:00,881 INFO L226 Difference]: Without dead ends: 164 [2018-04-10 13:39:00,881 INFO L567 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 [2018-04-10 13:39:00,882 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 164 states. [2018-04-10 13:39:00,884 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 164 to 151. [2018-04-10 13:39:00,885 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 151 states. [2018-04-10 13:39:00,885 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 151 states to 151 states and 161 transitions. [2018-04-10 13:39:00,885 INFO L78 Accepts]: Start accepts. Automaton has 151 states and 161 transitions. Word has length 40 [2018-04-10 13:39:00,886 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-04-10 13:39:00,886 INFO L459 AbstractCegarLoop]: Abstraction has 151 states and 161 transitions. [2018-04-10 13:39:00,886 INFO L460 AbstractCegarLoop]: Interpolant automaton has 3 states. [2018-04-10 13:39:00,886 INFO L276 IsEmpty]: Start isEmpty. Operand 151 states and 161 transitions. [2018-04-10 13:39:00,887 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 44 [2018-04-10 13:39:00,887 INFO L347 BasicCegarLoop]: Found error trace [2018-04-10 13:39:00,887 INFO L355 BasicCegarLoop]: trace histogram [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] [2018-04-10 13:39:00,887 INFO L408 AbstractCegarLoop]: === Iteration 12 === [mainErr5RequiresViolation, mainErr13RequiresViolation, mainErr25AssertViolationMEMORY_FREE, mainErr14AssertViolationMEMORY_FREE, mainErr18RequiresViolation, mainErr0RequiresViolation, mainErr21RequiresViolation, mainErr3RequiresViolation, mainErr28EnsuresViolationMEMORY_LEAK, mainErr16RequiresViolation, mainErr2RequiresViolation, mainErr12RequiresViolation, mainErr6RequiresViolation, mainErr19RequiresViolation, mainErr24AssertViolationMEMORY_FREE, mainErr1RequiresViolation, mainErr17RequiresViolation, mainErr23AssertViolationMEMORY_FREE, mainErr9RequiresViolation, mainErr22AssertViolationMEMORY_FREE, mainErr7RequiresViolation, mainErr20RequiresViolation, mainErr11RequiresViolation, mainErr26AssertViolationMEMORY_FREE, mainErr8RequiresViolation, mainErr10RequiresViolation, mainErr4RequiresViolation, mainErr15AssertViolationMEMORY_FREE, mainErr27AssertViolationMEMORY_FREE, __U_MULTI_flength_test___false_valid_memtrack_i__appendErr2RequiresViolation, __U_MULTI_flength_test___false_valid_memtrack_i__appendErr18RequiresViolation, __U_MULTI_flength_test___false_valid_memtrack_i__appendErr23RequiresViolation, __U_MULTI_flength_test___false_valid_memtrack_i__appendErr21RequiresViolation, __U_MULTI_flength_test___false_valid_memtrack_i__appendErr13RequiresViolation, __U_MULTI_flength_test___false_valid_memtrack_i__appendErr24RequiresViolation, __U_MULTI_flength_test___false_valid_memtrack_i__appendErr4RequiresViolation, __U_MULTI_flength_test___false_valid_memtrack_i__appendErr10RequiresViolation, __U_MULTI_flength_test___false_valid_memtrack_i__appendErr20RequiresViolation, __U_MULTI_flength_test___false_valid_memtrack_i__appendErr3RequiresViolation, __U_MULTI_flength_test___false_valid_memtrack_i__appendErr11RequiresViolation, __U_MULTI_flength_test___false_valid_memtrack_i__appendErr7RequiresViolation, __U_MULTI_flength_test___false_valid_memtrack_i__appendErr0RequiresViolation, __U_MULTI_flength_test___false_valid_memtrack_i__appendErr14RequiresViolation, __U_MULTI_flength_test___false_valid_memtrack_i__appendErr22RequiresViolation, __U_MULTI_flength_test___false_valid_memtrack_i__appendErr12RequiresViolation, __U_MULTI_flength_test___false_valid_memtrack_i__appendErr17RequiresViolation, __U_MULTI_flength_test___false_valid_memtrack_i__appendErr25RequiresViolation, __U_MULTI_flength_test___false_valid_memtrack_i__appendErr1RequiresViolation, __U_MULTI_flength_test___false_valid_memtrack_i__appendErr6RequiresViolation, __U_MULTI_flength_test___false_valid_memtrack_i__appendErr8RequiresViolation, __U_MULTI_flength_test___false_valid_memtrack_i__appendErr19RequiresViolation, __U_MULTI_flength_test___false_valid_memtrack_i__appendErr15RequiresViolation, __U_MULTI_flength_test___false_valid_memtrack_i__appendErr9RequiresViolation, __U_MULTI_flength_test___false_valid_memtrack_i__appendErr5RequiresViolation, __U_MULTI_flength_test___false_valid_memtrack_i__appendErr16RequiresViolation]=== [2018-04-10 13:39:00,887 INFO L82 PathProgramCache]: Analyzing trace with hash -1911230466, now seen corresponding path program 1 times [2018-04-10 13:39:00,887 INFO L213 ckRefinementStrategy]: Switched to mode SMTINTERPOL_TREE_INTERPOLANTS [2018-04-10 13:39:00,887 INFO L68 tionRefinementEngine]: Using refinement strategy CamelRefinementStrategy [2018-04-10 13:39:00,888 INFO L119 rtionOrderModulation]: Craig nested/tree interpolation forces the following order [2018-04-10 13:39:00,888 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-04-10 13:39:00,888 INFO L119 rtionOrderModulation]: Craig nested/tree interpolation forces the following order [2018-04-10 13:39:00,899 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-04-10 13:39:00,900 WARN L137 erpolLogProxyWrapper]: Using partial proofs (cut at CNF-level). Set option :produce-proofs to true to get complete proofs. [2018-04-10 13:39:01,000 INFO L134 CoverageAnalysis]: Checked inductivity of 5 backedges. 0 proven. 5 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-04-10 13:39:01,000 INFO L308 seRefinementStrategy]: The current sequences of interpolants are not accepted, trying to find more. [2018-04-10 13:39:01,000 INFO L213 ckRefinementStrategy]: Switched to mode Z3_FP No working directory specified, using /home/ultimate/work/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 [2018-04-10 13:39:01,009 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-04-10 13:39:01,043 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-04-10 13:39:01,049 INFO L270 TraceCheckSpWp]: Computing forward predicates... [2018-04-10 13:39:01,153 INFO L477 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 12 treesize of output 11 [2018-04-10 13:39:01,153 INFO L267 ElimStorePlain]: Start of recursive call 2: End of recursive call: and 1 xjuncts. [2018-04-10 13:39:01,157 INFO L267 ElimStorePlain]: Start of recursive call 1: 1 dim-0 vars, 1 dim-1 vars, End of recursive call: 1 dim-0 vars, and 1 xjuncts. [2018-04-10 13:39:01,157 INFO L202 ElimStorePlain]: Needed 2 recursive calls to eliminate 2 variables, input treesize:17, output treesize:11 [2018-04-10 13:39:01,188 INFO L477 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 12 treesize of output 11 [2018-04-10 13:39:01,188 INFO L267 ElimStorePlain]: Start of recursive call 2: End of recursive call: and 1 xjuncts. [2018-04-10 13:39:01,206 INFO L267 ElimStorePlain]: Start of recursive call 1: 1 dim-1 vars, End of recursive call: and 1 xjuncts. [2018-04-10 13:39:01,207 INFO L202 ElimStorePlain]: Needed 2 recursive calls to eliminate 1 variables, input treesize:12, output treesize:11 [2018-04-10 13:39:01,273 INFO L134 CoverageAnalysis]: Checked inductivity of 5 backedges. 0 proven. 4 refuted. 1 times theorem prover too weak. 0 trivial. 0 not checked. [2018-04-10 13:39:01,295 INFO L320 seRefinementStrategy]: Constructing automaton from 0 perfect and 2 imperfect interpolant sequences. [2018-04-10 13:39:01,296 INFO L335 seRefinementStrategy]: Number of different interpolants: perfect sequences [] imperfect sequences [10, 10] total 15 [2018-04-10 13:39:01,296 INFO L442 AbstractCegarLoop]: Interpolant automaton has 16 states [2018-04-10 13:39:01,296 INFO L132 InterpolantAutomaton]: Constructing interpolant automaton starting with 16 interpolants. [2018-04-10 13:39:01,296 INFO L133 InterpolantAutomaton]: CoverageRelationStatistics Valid=41, Invalid=193, Unknown=6, NotChecked=0, Total=240 [2018-04-10 13:39:01,296 INFO L87 Difference]: Start difference. First operand 151 states and 161 transitions. Second operand 16 states. [2018-04-10 13:39:02,144 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-04-10 13:39:02,144 INFO L93 Difference]: Finished difference Result 190 states and 199 transitions. [2018-04-10 13:39:02,145 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 15 states. [2018-04-10 13:39:02,145 INFO L78 Accepts]: Start accepts. Automaton has 16 states. Word has length 43 [2018-04-10 13:39:02,145 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-04-10 13:39:02,146 INFO L225 Difference]: With dead ends: 190 [2018-04-10 13:39:02,146 INFO L226 Difference]: Without dead ends: 190 [2018-04-10 13:39:02,146 INFO L567 BasicCegarLoop]: 0 DeclaredPredicates, 66 GetRequests, 37 SyntacticMatches, 5 SemanticMatches, 24 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 69 ImplicationChecksByTransitivity, 0.3s TimeCoverageRelationStatistics Valid=137, Invalid=506, Unknown=7, NotChecked=0, Total=650 [2018-04-10 13:39:02,146 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 190 states. [2018-04-10 13:39:02,148 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 190 to 153. [2018-04-10 13:39:02,148 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 153 states. [2018-04-10 13:39:02,148 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 153 states to 153 states and 165 transitions. [2018-04-10 13:39:02,148 INFO L78 Accepts]: Start accepts. Automaton has 153 states and 165 transitions. Word has length 43 [2018-04-10 13:39:02,149 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-04-10 13:39:02,149 INFO L459 AbstractCegarLoop]: Abstraction has 153 states and 165 transitions. [2018-04-10 13:39:02,149 INFO L460 AbstractCegarLoop]: Interpolant automaton has 16 states. [2018-04-10 13:39:02,149 INFO L276 IsEmpty]: Start isEmpty. Operand 153 states and 165 transitions. [2018-04-10 13:39:02,149 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 44 [2018-04-10 13:39:02,149 INFO L347 BasicCegarLoop]: Found error trace [2018-04-10 13:39:02,149 INFO L355 BasicCegarLoop]: trace histogram [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] [2018-04-10 13:39:02,149 INFO L408 AbstractCegarLoop]: === Iteration 13 === [mainErr5RequiresViolation, mainErr13RequiresViolation, mainErr25AssertViolationMEMORY_FREE, mainErr14AssertViolationMEMORY_FREE, mainErr18RequiresViolation, mainErr0RequiresViolation, mainErr21RequiresViolation, mainErr3RequiresViolation, mainErr28EnsuresViolationMEMORY_LEAK, mainErr16RequiresViolation, mainErr2RequiresViolation, mainErr12RequiresViolation, mainErr6RequiresViolation, mainErr19RequiresViolation, mainErr24AssertViolationMEMORY_FREE, mainErr1RequiresViolation, mainErr17RequiresViolation, mainErr23AssertViolationMEMORY_FREE, mainErr9RequiresViolation, mainErr22AssertViolationMEMORY_FREE, mainErr7RequiresViolation, mainErr20RequiresViolation, mainErr11RequiresViolation, mainErr26AssertViolationMEMORY_FREE, mainErr8RequiresViolation, mainErr10RequiresViolation, mainErr4RequiresViolation, mainErr15AssertViolationMEMORY_FREE, mainErr27AssertViolationMEMORY_FREE, __U_MULTI_flength_test___false_valid_memtrack_i__appendErr2RequiresViolation, __U_MULTI_flength_test___false_valid_memtrack_i__appendErr18RequiresViolation, __U_MULTI_flength_test___false_valid_memtrack_i__appendErr23RequiresViolation, __U_MULTI_flength_test___false_valid_memtrack_i__appendErr21RequiresViolation, __U_MULTI_flength_test___false_valid_memtrack_i__appendErr13RequiresViolation, __U_MULTI_flength_test___false_valid_memtrack_i__appendErr24RequiresViolation, __U_MULTI_flength_test___false_valid_memtrack_i__appendErr4RequiresViolation, __U_MULTI_flength_test___false_valid_memtrack_i__appendErr10RequiresViolation, __U_MULTI_flength_test___false_valid_memtrack_i__appendErr20RequiresViolation, __U_MULTI_flength_test___false_valid_memtrack_i__appendErr3RequiresViolation, __U_MULTI_flength_test___false_valid_memtrack_i__appendErr11RequiresViolation, __U_MULTI_flength_test___false_valid_memtrack_i__appendErr7RequiresViolation, __U_MULTI_flength_test___false_valid_memtrack_i__appendErr0RequiresViolation, __U_MULTI_flength_test___false_valid_memtrack_i__appendErr14RequiresViolation, __U_MULTI_flength_test___false_valid_memtrack_i__appendErr22RequiresViolation, __U_MULTI_flength_test___false_valid_memtrack_i__appendErr12RequiresViolation, __U_MULTI_flength_test___false_valid_memtrack_i__appendErr17RequiresViolation, __U_MULTI_flength_test___false_valid_memtrack_i__appendErr25RequiresViolation, __U_MULTI_flength_test___false_valid_memtrack_i__appendErr1RequiresViolation, __U_MULTI_flength_test___false_valid_memtrack_i__appendErr6RequiresViolation, __U_MULTI_flength_test___false_valid_memtrack_i__appendErr8RequiresViolation, __U_MULTI_flength_test___false_valid_memtrack_i__appendErr19RequiresViolation, __U_MULTI_flength_test___false_valid_memtrack_i__appendErr15RequiresViolation, __U_MULTI_flength_test___false_valid_memtrack_i__appendErr9RequiresViolation, __U_MULTI_flength_test___false_valid_memtrack_i__appendErr5RequiresViolation, __U_MULTI_flength_test___false_valid_memtrack_i__appendErr16RequiresViolation]=== [2018-04-10 13:39:02,150 INFO L82 PathProgramCache]: Analyzing trace with hash -1911230465, now seen corresponding path program 1 times [2018-04-10 13:39:02,150 INFO L213 ckRefinementStrategy]: Switched to mode SMTINTERPOL_TREE_INTERPOLANTS [2018-04-10 13:39:02,150 INFO L68 tionRefinementEngine]: Using refinement strategy CamelRefinementStrategy [2018-04-10 13:39:02,150 INFO L119 rtionOrderModulation]: Craig nested/tree interpolation forces the following order [2018-04-10 13:39:02,150 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-04-10 13:39:02,150 INFO L119 rtionOrderModulation]: Craig nested/tree interpolation forces the following order [2018-04-10 13:39:02,161 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-04-10 13:39:02,161 WARN L137 erpolLogProxyWrapper]: Using partial proofs (cut at CNF-level). Set option :produce-proofs to true to get complete proofs. [2018-04-10 13:39:02,289 INFO L134 CoverageAnalysis]: Checked inductivity of 5 backedges. 0 proven. 5 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-04-10 13:39:02,290 INFO L308 seRefinementStrategy]: The current sequences of interpolants are not accepted, trying to find more. [2018-04-10 13:39:02,290 INFO L213 ckRefinementStrategy]: Switched to mode Z3_FP No working directory specified, using /home/ultimate/work/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 [2018-04-10 13:39:02,298 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-04-10 13:39:02,336 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-04-10 13:39:02,340 INFO L270 TraceCheckSpWp]: Computing forward predicates... [2018-04-10 13:39:02,395 WARN L1033 $PredicateComparison]: unable to prove that (exists ((__U_MULTI_flength_test___false_valid_memtrack_i__append_~node~0.base Int)) (= |c_#length| (store |c_old(#length)| __U_MULTI_flength_test___false_valid_memtrack_i__append_~node~0.base 9))) is different from true [2018-04-10 13:39:02,414 INFO L477 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 2 case distinctions, treesize of input 14 treesize of output 20 [2018-04-10 13:39:02,415 INFO L267 ElimStorePlain]: Start of recursive call 2: End of recursive call: and 2 xjuncts. [2018-04-10 13:39:02,421 INFO L267 ElimStorePlain]: Start of recursive call 1: 1 dim-0 vars, 1 dim-1 vars, End of recursive call: 1 dim-0 vars, and 1 xjuncts. [2018-04-10 13:39:02,421 INFO L202 ElimStorePlain]: Needed 2 recursive calls to eliminate 2 variables, input treesize:20, output treesize:19 [2018-04-10 13:39:02,478 INFO L477 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 2 select indices, 2 select index equivalence classes, 0 disjoint index pairs (out of 1 index pairs), introduced 1 new quantified variables, introduced 3 case distinctions, treesize of input 19 treesize of output 33 [2018-04-10 13:39:02,479 INFO L267 ElimStorePlain]: Start of recursive call 2: End of recursive call: and 4 xjuncts. [2018-04-10 13:39:02,495 INFO L267 ElimStorePlain]: Start of recursive call 1: 1 dim-0 vars, 1 dim-1 vars, End of recursive call: 2 dim-0 vars, and 2 xjuncts. [2018-04-10 13:39:02,495 INFO L202 ElimStorePlain]: Needed 2 recursive calls to eliminate 2 variables, input treesize:25, output treesize:47 [2018-04-10 13:39:02,525 INFO L134 CoverageAnalysis]: Checked inductivity of 5 backedges. 0 proven. 3 refuted. 0 times theorem prover too weak. 0 trivial. 2 not checked. [2018-04-10 13:39:02,542 INFO L320 seRefinementStrategy]: Constructing automaton from 0 perfect and 2 imperfect interpolant sequences. [2018-04-10 13:39:02,542 INFO L335 seRefinementStrategy]: Number of different interpolants: perfect sequences [] imperfect sequences [11, 11] total 21 [2018-04-10 13:39:02,542 INFO L442 AbstractCegarLoop]: Interpolant automaton has 22 states [2018-04-10 13:39:02,542 INFO L132 InterpolantAutomaton]: Constructing interpolant automaton starting with 22 interpolants. [2018-04-10 13:39:02,543 INFO L133 InterpolantAutomaton]: CoverageRelationStatistics Valid=56, Invalid=367, Unknown=1, NotChecked=38, Total=462 [2018-04-10 13:39:02,543 INFO L87 Difference]: Start difference. First operand 153 states and 165 transitions. Second operand 22 states. [2018-04-10 13:39:03,349 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-04-10 13:39:03,349 INFO L93 Difference]: Finished difference Result 212 states and 225 transitions. [2018-04-10 13:39:03,349 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 19 states. [2018-04-10 13:39:03,349 INFO L78 Accepts]: Start accepts. Automaton has 22 states. Word has length 43 [2018-04-10 13:39:03,350 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-04-10 13:39:03,351 INFO L225 Difference]: With dead ends: 212 [2018-04-10 13:39:03,351 INFO L226 Difference]: Without dead ends: 212 [2018-04-10 13:39:03,351 INFO L567 BasicCegarLoop]: 0 DeclaredPredicates, 71 GetRequests, 34 SyntacticMatches, 3 SemanticMatches, 34 ConstructedPredicates, 1 IntricatePredicates, 0 DeprecatedPredicates, 238 ImplicationChecksByTransitivity, 0.4s TimeCoverageRelationStatistics Valid=167, Invalid=1026, Unknown=1, NotChecked=66, Total=1260 [2018-04-10 13:39:03,352 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 212 states. [2018-04-10 13:39:03,355 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 212 to 180. [2018-04-10 13:39:03,355 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 180 states. [2018-04-10 13:39:03,356 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 180 states to 180 states and 197 transitions. [2018-04-10 13:39:03,356 INFO L78 Accepts]: Start accepts. Automaton has 180 states and 197 transitions. Word has length 43 [2018-04-10 13:39:03,356 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-04-10 13:39:03,356 INFO L459 AbstractCegarLoop]: Abstraction has 180 states and 197 transitions. [2018-04-10 13:39:03,356 INFO L460 AbstractCegarLoop]: Interpolant automaton has 22 states. [2018-04-10 13:39:03,356 INFO L276 IsEmpty]: Start isEmpty. Operand 180 states and 197 transitions. [2018-04-10 13:39:03,357 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 51 [2018-04-10 13:39:03,357 INFO L347 BasicCegarLoop]: Found error trace [2018-04-10 13:39:03,357 INFO L355 BasicCegarLoop]: trace histogram [2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2018-04-10 13:39:03,357 INFO L408 AbstractCegarLoop]: === Iteration 14 === [mainErr5RequiresViolation, mainErr13RequiresViolation, mainErr25AssertViolationMEMORY_FREE, mainErr14AssertViolationMEMORY_FREE, mainErr18RequiresViolation, mainErr0RequiresViolation, mainErr21RequiresViolation, mainErr3RequiresViolation, mainErr28EnsuresViolationMEMORY_LEAK, mainErr16RequiresViolation, mainErr2RequiresViolation, mainErr12RequiresViolation, mainErr6RequiresViolation, mainErr19RequiresViolation, mainErr24AssertViolationMEMORY_FREE, mainErr1RequiresViolation, mainErr17RequiresViolation, mainErr23AssertViolationMEMORY_FREE, mainErr9RequiresViolation, mainErr22AssertViolationMEMORY_FREE, mainErr7RequiresViolation, mainErr20RequiresViolation, mainErr11RequiresViolation, mainErr26AssertViolationMEMORY_FREE, mainErr8RequiresViolation, mainErr10RequiresViolation, mainErr4RequiresViolation, mainErr15AssertViolationMEMORY_FREE, mainErr27AssertViolationMEMORY_FREE, __U_MULTI_flength_test___false_valid_memtrack_i__appendErr2RequiresViolation, __U_MULTI_flength_test___false_valid_memtrack_i__appendErr18RequiresViolation, __U_MULTI_flength_test___false_valid_memtrack_i__appendErr23RequiresViolation, __U_MULTI_flength_test___false_valid_memtrack_i__appendErr21RequiresViolation, __U_MULTI_flength_test___false_valid_memtrack_i__appendErr13RequiresViolation, __U_MULTI_flength_test___false_valid_memtrack_i__appendErr24RequiresViolation, __U_MULTI_flength_test___false_valid_memtrack_i__appendErr4RequiresViolation, __U_MULTI_flength_test___false_valid_memtrack_i__appendErr10RequiresViolation, __U_MULTI_flength_test___false_valid_memtrack_i__appendErr20RequiresViolation, __U_MULTI_flength_test___false_valid_memtrack_i__appendErr3RequiresViolation, __U_MULTI_flength_test___false_valid_memtrack_i__appendErr11RequiresViolation, __U_MULTI_flength_test___false_valid_memtrack_i__appendErr7RequiresViolation, __U_MULTI_flength_test___false_valid_memtrack_i__appendErr0RequiresViolation, __U_MULTI_flength_test___false_valid_memtrack_i__appendErr14RequiresViolation, __U_MULTI_flength_test___false_valid_memtrack_i__appendErr22RequiresViolation, __U_MULTI_flength_test___false_valid_memtrack_i__appendErr12RequiresViolation, __U_MULTI_flength_test___false_valid_memtrack_i__appendErr17RequiresViolation, __U_MULTI_flength_test___false_valid_memtrack_i__appendErr25RequiresViolation, __U_MULTI_flength_test___false_valid_memtrack_i__appendErr1RequiresViolation, __U_MULTI_flength_test___false_valid_memtrack_i__appendErr6RequiresViolation, __U_MULTI_flength_test___false_valid_memtrack_i__appendErr8RequiresViolation, __U_MULTI_flength_test___false_valid_memtrack_i__appendErr19RequiresViolation, __U_MULTI_flength_test___false_valid_memtrack_i__appendErr15RequiresViolation, __U_MULTI_flength_test___false_valid_memtrack_i__appendErr9RequiresViolation, __U_MULTI_flength_test___false_valid_memtrack_i__appendErr5RequiresViolation, __U_MULTI_flength_test___false_valid_memtrack_i__appendErr16RequiresViolation]=== [2018-04-10 13:39:03,357 INFO L82 PathProgramCache]: Analyzing trace with hash 771137816, now seen corresponding path program 1 times [2018-04-10 13:39:03,358 INFO L213 ckRefinementStrategy]: Switched to mode SMTINTERPOL_TREE_INTERPOLANTS [2018-04-10 13:39:03,358 INFO L68 tionRefinementEngine]: Using refinement strategy CamelRefinementStrategy [2018-04-10 13:39:03,358 INFO L119 rtionOrderModulation]: Craig nested/tree interpolation forces the following order [2018-04-10 13:39:03,358 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-04-10 13:39:03,358 INFO L119 rtionOrderModulation]: Craig nested/tree interpolation forces the following order [2018-04-10 13:39:03,379 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-04-10 13:39:03,380 WARN L137 erpolLogProxyWrapper]: Using partial proofs (cut at CNF-level). Set option :produce-proofs to true to get complete proofs. [2018-04-10 13:39:03,989 INFO L134 CoverageAnalysis]: Checked inductivity of 10 backedges. 0 proven. 10 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-04-10 13:39:03,989 INFO L308 seRefinementStrategy]: The current sequences of interpolants are not accepted, trying to find more. [2018-04-10 13:39:03,989 INFO L213 ckRefinementStrategy]: Switched to mode Z3_FP No working directory specified, using /home/ultimate/work/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 [2018-04-10 13:39:03,994 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-04-10 13:39:04,018 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-04-10 13:39:04,022 INFO L270 TraceCheckSpWp]: Computing forward predicates... [2018-04-10 13:39:04,086 INFO L477 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 12 treesize of output 11 [2018-04-10 13:39:04,086 INFO L267 ElimStorePlain]: Start of recursive call 2: End of recursive call: and 1 xjuncts. [2018-04-10 13:39:04,089 INFO L267 ElimStorePlain]: Start of recursive call 1: 1 dim-1 vars, End of recursive call: and 1 xjuncts. [2018-04-10 13:39:04,090 INFO L202 ElimStorePlain]: Needed 2 recursive calls to eliminate 1 variables, input treesize:15, output treesize:14 [2018-04-10 13:39:04,274 INFO L477 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 13 treesize of output 10 [2018-04-10 13:39:04,276 INFO L477 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 10 treesize of output 9 [2018-04-10 13:39:04,276 INFO L267 ElimStorePlain]: Start of recursive call 3: End of recursive call: and 1 xjuncts. [2018-04-10 13:39:04,281 INFO L267 ElimStorePlain]: Start of recursive call 2: 1 dim-1 vars, End of recursive call: and 1 xjuncts. [2018-04-10 13:39:04,285 INFO L267 ElimStorePlain]: Start of recursive call 1: 1 dim-2 vars, End of recursive call: and 1 xjuncts. [2018-04-10 13:39:04,285 INFO L202 ElimStorePlain]: Needed 3 recursive calls to eliminate 1 variables, input treesize:29, output treesize:25 [2018-04-10 13:39:04,317 INFO L477 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 2 select indices, 2 select index equivalence classes, 0 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 3 case distinctions, treesize of input 23 treesize of output 35 [2018-04-10 13:39:04,328 INFO L477 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 24 treesize of output 23 [2018-04-10 13:39:04,328 INFO L267 ElimStorePlain]: Start of recursive call 3: End of recursive call: and 1 xjuncts. [2018-04-10 13:39:04,346 INFO L477 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 2 case distinctions, treesize of input 21 treesize of output 30 [2018-04-10 13:39:04,346 INFO L267 ElimStorePlain]: Start of recursive call 4: End of recursive call: and 2 xjuncts. [2018-04-10 13:39:04,355 INFO L267 ElimStorePlain]: Start of recursive call 2: 2 dim-1 vars, End of recursive call: and 2 xjuncts. [2018-04-10 13:39:04,367 INFO L267 ElimStorePlain]: Start of recursive call 1: 1 dim-2 vars, End of recursive call: and 2 xjuncts. [2018-04-10 13:39:04,367 INFO L202 ElimStorePlain]: Needed 4 recursive calls to eliminate 1 variables, input treesize:38, output treesize:70 [2018-04-10 13:39:04,429 INFO L477 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 2 select indices, 2 select index equivalence classes, 0 disjoint index pairs (out of 1 index pairs), introduced 3 new quantified variables, introduced 3 case distinctions, treesize of input 68 treesize of output 65 [2018-04-10 13:39:04,432 INFO L700 Elim1Store]: detected not equals via solver [2018-04-10 13:39:04,433 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 [2018-04-10 13:39:04,433 INFO L267 ElimStorePlain]: Start of recursive call 3: End of recursive call: and 1 xjuncts. [2018-04-10 13:39:04,454 INFO L700 Elim1Store]: detected not equals via solver [2018-04-10 13:39:04,461 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 [2018-04-10 13:39:04,461 INFO L267 ElimStorePlain]: Start of recursive call 4: End of recursive call: and 2 xjuncts. [2018-04-10 13:39:04,477 INFO L267 ElimStorePlain]: Start of recursive call 2: 2 dim-1 vars, End of recursive call: and 2 xjuncts. [2018-04-10 13:39:04,506 INFO L477 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 33 treesize of output 28 [2018-04-10 13:39:04,512 INFO L700 Elim1Store]: detected not equals via solver [2018-04-10 13:39:04,512 INFO L477 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 1 select indices, 1 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 18 treesize of output 27 [2018-04-10 13:39:04,512 INFO L267 ElimStorePlain]: Start of recursive call 6: End of recursive call: and 1 xjuncts. [2018-04-10 13:39:04,517 INFO L267 ElimStorePlain]: Start of recursive call 5: 1 dim-1 vars, End of recursive call: and 1 xjuncts. [2018-04-10 13:39:04,532 INFO L267 ElimStorePlain]: Start of recursive call 1: 1 dim-0 vars, 2 dim-2 vars, End of recursive call: 1 dim-0 vars, and 3 xjuncts. [2018-04-10 13:39:04,532 INFO L202 ElimStorePlain]: Needed 6 recursive calls to eliminate 3 variables, input treesize:102, output treesize:115 [2018-04-10 13:39:04,589 WARN L307 Elim1Store]: Array PQE input equivalent to false [2018-04-10 13:39:04,589 INFO L267 ElimStorePlain]: Start of recursive call 2: End of recursive call: and 1 xjuncts. [2018-04-10 13:39:04,602 INFO L700 Elim1Store]: detected not equals via solver [2018-04-10 13:39:04,602 INFO L700 Elim1Store]: detected not equals via solver [2018-04-10 13:39:04,603 INFO L477 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 2 select indices, 2 select index equivalence classes, 2 disjoint index pairs (out of 1 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 17 treesize of output 10 [2018-04-10 13:39:04,603 INFO L267 ElimStorePlain]: Start of recursive call 3: End of recursive call: and 1 xjuncts. [2018-04-10 13:39:04,615 INFO L267 ElimStorePlain]: Start of recursive call 1: 1 dim-0 vars, 3 dim-1 vars, End of recursive call: 1 dim-0 vars, and 1 xjuncts. [2018-04-10 13:39:04,615 INFO L202 ElimStorePlain]: Needed 3 recursive calls to eliminate 4 variables, input treesize:139, output treesize:60 [2018-04-10 13:39:04,736 INFO L700 Elim1Store]: detected not equals via solver [2018-04-10 13:39:04,737 INFO L700 Elim1Store]: detected not equals via solver [2018-04-10 13:39:04,737 INFO L700 Elim1Store]: detected not equals via solver [2018-04-10 13:39:04,738 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 [2018-04-10 13:39:04,738 INFO L267 ElimStorePlain]: Start of recursive call 2: End of recursive call: and 1 xjuncts. [2018-04-10 13:39:04,750 INFO L267 ElimStorePlain]: Start of recursive call 1: 2 dim-0 vars, 1 dim-1 vars, End of recursive call: 2 dim-0 vars, and 1 xjuncts. [2018-04-10 13:39:04,750 INFO L202 ElimStorePlain]: Needed 2 recursive calls to eliminate 3 variables, input treesize:74, output treesize:82 [2018-04-10 13:39:04,923 INFO L477 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 3 select indices, 3 select index equivalence classes, 3 disjoint index pairs (out of 3 index pairs), introduced 2 new quantified variables, introduced 0 case distinctions, treesize of input 75 treesize of output 73 [2018-04-10 13:39:04,928 INFO L477 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 10 treesize of output 9 [2018-04-10 13:39:04,928 INFO L267 ElimStorePlain]: Start of recursive call 3: End of recursive call: and 1 xjuncts. [2018-04-10 13:39:04,959 INFO L267 ElimStorePlain]: Start of recursive call 2: 1 dim-1 vars, End of recursive call: and 1 xjuncts. [2018-04-10 13:39:04,971 INFO L267 ElimStorePlain]: Start of recursive call 1: 3 dim-0 vars, 1 dim-2 vars, End of recursive call: 2 dim-0 vars, and 1 xjuncts. [2018-04-10 13:39:04,972 INFO L202 ElimStorePlain]: Needed 3 recursive calls to eliminate 4 variables, input treesize:98, output treesize:85 [2018-04-10 13:39:05,023 INFO L477 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 3 select indices, 3 select index equivalence classes, 3 disjoint index pairs (out of 3 index pairs), introduced 2 new quantified variables, introduced 0 case distinctions, treesize of input 75 treesize of output 73 [2018-04-10 13:39:05,025 INFO L477 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 10 treesize of output 9 [2018-04-10 13:39:05,026 INFO L267 ElimStorePlain]: Start of recursive call 3: End of recursive call: and 1 xjuncts. [2018-04-10 13:39:05,032 INFO L267 ElimStorePlain]: Start of recursive call 2: 1 dim-1 vars, End of recursive call: and 1 xjuncts. [2018-04-10 13:39:05,047 INFO L267 ElimStorePlain]: Start of recursive call 1: 4 dim-0 vars, 1 dim-2 vars, End of recursive call: 4 dim-0 vars, and 1 xjuncts. [2018-04-10 13:39:05,047 INFO L202 ElimStorePlain]: Needed 3 recursive calls to eliminate 5 variables, input treesize:98, output treesize:94 [2018-04-10 13:39:05,097 INFO L477 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 0 stores, 3 select indices, 3 select index equivalence classes, 3 disjoint index pairs (out of 3 index pairs), introduced 4 new quantified variables, introduced 0 case distinctions, treesize of input 80 treesize of output 65 [2018-04-10 13:39:05,104 INFO L477 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 7 treesize of output 1 [2018-04-10 13:39:05,104 INFO L267 ElimStorePlain]: Start of recursive call 3: End of recursive call: and 1 xjuncts. [2018-04-10 13:39:05,123 INFO L700 Elim1Store]: detected not equals via solver [2018-04-10 13:39:05,124 INFO L477 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 2 select indices, 2 select index equivalence classes, 1 disjoint index pairs (out of 1 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 15 treesize of output 8 [2018-04-10 13:39:05,124 INFO L267 ElimStorePlain]: Start of recursive call 4: End of recursive call: and 1 xjuncts. [2018-04-10 13:39:05,131 INFO L682 Elim1Store]: detected equality via solver [2018-04-10 13:39:05,132 INFO L477 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 2 select indices, 2 select index equivalence classes, 2 disjoint index pairs (out of 1 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 33 treesize of output 21 [2018-04-10 13:39:05,133 INFO L267 ElimStorePlain]: Start of recursive call 5: End of recursive call: and 1 xjuncts. [2018-04-10 13:39:05,137 INFO L267 ElimStorePlain]: Start of recursive call 2: 3 dim-1 vars, End of recursive call: and 1 xjuncts. [2018-04-10 13:39:05,146 INFO L267 ElimStorePlain]: Start of recursive call 1: 6 dim-0 vars, 1 dim-2 vars, End of recursive call: 2 dim-0 vars, and 1 xjuncts. [2018-04-10 13:39:05,147 INFO L202 ElimStorePlain]: Needed 5 recursive calls to eliminate 7 variables, input treesize:103, output treesize:28 [2018-04-10 13:39:05,197 INFO L134 CoverageAnalysis]: Checked inductivity of 10 backedges. 2 proven. 8 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-04-10 13:39:05,215 INFO L320 seRefinementStrategy]: Constructing automaton from 0 perfect and 2 imperfect interpolant sequences. [2018-04-10 13:39:05,215 INFO L335 seRefinementStrategy]: Number of different interpolants: perfect sequences [] imperfect sequences [20, 23] total 41 [2018-04-10 13:39:05,215 INFO L442 AbstractCegarLoop]: Interpolant automaton has 42 states [2018-04-10 13:39:05,215 INFO L132 InterpolantAutomaton]: Constructing interpolant automaton starting with 42 interpolants. [2018-04-10 13:39:05,216 INFO L133 InterpolantAutomaton]: CoverageRelationStatistics Valid=131, Invalid=1591, Unknown=0, NotChecked=0, Total=1722 [2018-04-10 13:39:05,216 INFO L87 Difference]: Start difference. First operand 180 states and 197 transitions. Second operand 42 states. [2018-04-10 13:39:09,970 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-04-10 13:39:09,970 INFO L93 Difference]: Finished difference Result 248 states and 270 transitions. [2018-04-10 13:39:09,970 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 35 states. [2018-04-10 13:39:09,970 INFO L78 Accepts]: Start accepts. Automaton has 42 states. Word has length 50 [2018-04-10 13:39:09,970 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-04-10 13:39:09,971 INFO L225 Difference]: With dead ends: 248 [2018-04-10 13:39:09,971 INFO L226 Difference]: Without dead ends: 248 [2018-04-10 13:39:09,972 INFO L567 BasicCegarLoop]: 0 DeclaredPredicates, 103 GetRequests, 30 SyntacticMatches, 3 SemanticMatches, 70 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1224 ImplicationChecksByTransitivity, 2.6s TimeCoverageRelationStatistics Valid=620, Invalid=4492, Unknown=0, NotChecked=0, Total=5112 [2018-04-10 13:39:09,973 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 248 states. [2018-04-10 13:39:09,976 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 248 to 186. [2018-04-10 13:39:09,976 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 186 states. [2018-04-10 13:39:09,977 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 186 states to 186 states and 201 transitions. [2018-04-10 13:39:09,977 INFO L78 Accepts]: Start accepts. Automaton has 186 states and 201 transitions. Word has length 50 [2018-04-10 13:39:09,977 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-04-10 13:39:09,977 INFO L459 AbstractCegarLoop]: Abstraction has 186 states and 201 transitions. [2018-04-10 13:39:09,977 INFO L460 AbstractCegarLoop]: Interpolant automaton has 42 states. [2018-04-10 13:39:09,977 INFO L276 IsEmpty]: Start isEmpty. Operand 186 states and 201 transitions. [2018-04-10 13:39:09,978 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 51 [2018-04-10 13:39:09,978 INFO L347 BasicCegarLoop]: Found error trace [2018-04-10 13:39:09,978 INFO L355 BasicCegarLoop]: trace histogram [2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2018-04-10 13:39:09,979 INFO L408 AbstractCegarLoop]: === Iteration 15 === [mainErr5RequiresViolation, mainErr13RequiresViolation, mainErr25AssertViolationMEMORY_FREE, mainErr14AssertViolationMEMORY_FREE, mainErr18RequiresViolation, mainErr0RequiresViolation, mainErr21RequiresViolation, mainErr3RequiresViolation, mainErr28EnsuresViolationMEMORY_LEAK, mainErr16RequiresViolation, mainErr2RequiresViolation, mainErr12RequiresViolation, mainErr6RequiresViolation, mainErr19RequiresViolation, mainErr24AssertViolationMEMORY_FREE, mainErr1RequiresViolation, mainErr17RequiresViolation, mainErr23AssertViolationMEMORY_FREE, mainErr9RequiresViolation, mainErr22AssertViolationMEMORY_FREE, mainErr7RequiresViolation, mainErr20RequiresViolation, mainErr11RequiresViolation, mainErr26AssertViolationMEMORY_FREE, mainErr8RequiresViolation, mainErr10RequiresViolation, mainErr4RequiresViolation, mainErr15AssertViolationMEMORY_FREE, mainErr27AssertViolationMEMORY_FREE, __U_MULTI_flength_test___false_valid_memtrack_i__appendErr2RequiresViolation, __U_MULTI_flength_test___false_valid_memtrack_i__appendErr18RequiresViolation, __U_MULTI_flength_test___false_valid_memtrack_i__appendErr23RequiresViolation, __U_MULTI_flength_test___false_valid_memtrack_i__appendErr21RequiresViolation, __U_MULTI_flength_test___false_valid_memtrack_i__appendErr13RequiresViolation, __U_MULTI_flength_test___false_valid_memtrack_i__appendErr24RequiresViolation, __U_MULTI_flength_test___false_valid_memtrack_i__appendErr4RequiresViolation, __U_MULTI_flength_test___false_valid_memtrack_i__appendErr10RequiresViolation, __U_MULTI_flength_test___false_valid_memtrack_i__appendErr20RequiresViolation, __U_MULTI_flength_test___false_valid_memtrack_i__appendErr3RequiresViolation, __U_MULTI_flength_test___false_valid_memtrack_i__appendErr11RequiresViolation, __U_MULTI_flength_test___false_valid_memtrack_i__appendErr7RequiresViolation, __U_MULTI_flength_test___false_valid_memtrack_i__appendErr0RequiresViolation, __U_MULTI_flength_test___false_valid_memtrack_i__appendErr14RequiresViolation, __U_MULTI_flength_test___false_valid_memtrack_i__appendErr22RequiresViolation, __U_MULTI_flength_test___false_valid_memtrack_i__appendErr12RequiresViolation, __U_MULTI_flength_test___false_valid_memtrack_i__appendErr17RequiresViolation, __U_MULTI_flength_test___false_valid_memtrack_i__appendErr25RequiresViolation, __U_MULTI_flength_test___false_valid_memtrack_i__appendErr1RequiresViolation, __U_MULTI_flength_test___false_valid_memtrack_i__appendErr6RequiresViolation, __U_MULTI_flength_test___false_valid_memtrack_i__appendErr8RequiresViolation, __U_MULTI_flength_test___false_valid_memtrack_i__appendErr19RequiresViolation, __U_MULTI_flength_test___false_valid_memtrack_i__appendErr15RequiresViolation, __U_MULTI_flength_test___false_valid_memtrack_i__appendErr9RequiresViolation, __U_MULTI_flength_test___false_valid_memtrack_i__appendErr5RequiresViolation, __U_MULTI_flength_test___false_valid_memtrack_i__appendErr16RequiresViolation]=== [2018-04-10 13:39:09,979 INFO L82 PathProgramCache]: Analyzing trace with hash 771137817, now seen corresponding path program 1 times [2018-04-10 13:39:09,979 INFO L213 ckRefinementStrategy]: Switched to mode SMTINTERPOL_TREE_INTERPOLANTS [2018-04-10 13:39:09,979 INFO L68 tionRefinementEngine]: Using refinement strategy CamelRefinementStrategy [2018-04-10 13:39:09,980 INFO L119 rtionOrderModulation]: Craig nested/tree interpolation forces the following order [2018-04-10 13:39:09,980 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-04-10 13:39:09,980 INFO L119 rtionOrderModulation]: Craig nested/tree interpolation forces the following order [2018-04-10 13:39:10,001 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-04-10 13:39:10,002 WARN L137 erpolLogProxyWrapper]: Using partial proofs (cut at CNF-level). Set option :produce-proofs to true to get complete proofs. [2018-04-10 13:39:10,611 INFO L134 CoverageAnalysis]: Checked inductivity of 10 backedges. 0 proven. 10 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-04-10 13:39:10,611 INFO L308 seRefinementStrategy]: The current sequences of interpolants are not accepted, trying to find more. [2018-04-10 13:39:10,611 INFO L213 ckRefinementStrategy]: Switched to mode Z3_FP No working directory specified, using /home/ultimate/work/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 [2018-04-10 13:39:10,619 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-04-10 13:39:10,652 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-04-10 13:39:10,656 INFO L270 TraceCheckSpWp]: Computing forward predicates... [2018-04-10 13:39:10,728 INFO L477 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 12 treesize of output 11 [2018-04-10 13:39:10,729 INFO L267 ElimStorePlain]: Start of recursive call 2: End of recursive call: and 1 xjuncts. [2018-04-10 13:39:10,733 INFO L267 ElimStorePlain]: Start of recursive call 1: 1 dim-1 vars, End of recursive call: and 1 xjuncts. [2018-04-10 13:39:10,733 INFO L202 ElimStorePlain]: Needed 2 recursive calls to eliminate 1 variables, input treesize:15, output treesize:14 [2018-04-10 13:39:10,800 INFO L477 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 6 treesize of output 5 [2018-04-10 13:39:10,801 INFO L267 ElimStorePlain]: Start of recursive call 2: End of recursive call: and 1 xjuncts. [2018-04-10 13:39:10,804 INFO L267 ElimStorePlain]: Start of recursive call 1: 1 dim-1 vars, End of recursive call: and 1 xjuncts. [2018-04-10 13:39:10,804 INFO L202 ElimStorePlain]: Needed 2 recursive calls to eliminate 1 variables, input treesize:18, output treesize:17 [2018-04-10 13:39:10,864 INFO L477 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 13 treesize of output 10 [2018-04-10 13:39:10,866 INFO L477 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 10 treesize of output 9 [2018-04-10 13:39:10,866 INFO L267 ElimStorePlain]: Start of recursive call 3: End of recursive call: and 1 xjuncts. [2018-04-10 13:39:10,867 INFO L267 ElimStorePlain]: Start of recursive call 2: 1 dim-1 vars, End of recursive call: and 1 xjuncts. [2018-04-10 13:39:10,879 INFO L477 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 13 treesize of output 10 [2018-04-10 13:39:10,880 INFO L477 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 10 treesize of output 9 [2018-04-10 13:39:10,880 INFO L267 ElimStorePlain]: Start of recursive call 5: End of recursive call: and 1 xjuncts. [2018-04-10 13:39:10,881 INFO L267 ElimStorePlain]: Start of recursive call 4: 1 dim-1 vars, End of recursive call: and 1 xjuncts. [2018-04-10 13:39:10,886 INFO L267 ElimStorePlain]: Start of recursive call 1: 2 dim-2 vars, End of recursive call: and 1 xjuncts. [2018-04-10 13:39:10,886 INFO L202 ElimStorePlain]: Needed 5 recursive calls to eliminate 2 variables, input treesize:42, output treesize:34 [2018-04-10 13:39:10,943 INFO L477 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 2 select indices, 2 select index equivalence classes, 0 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 3 case distinctions, treesize of input 23 treesize of output 35 [2018-04-10 13:39:10,958 INFO L477 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 2 case distinctions, treesize of input 21 treesize of output 30 [2018-04-10 13:39:10,958 INFO L267 ElimStorePlain]: Start of recursive call 3: End of recursive call: and 2 xjuncts. [2018-04-10 13:39:10,977 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 [2018-04-10 13:39:10,977 INFO L267 ElimStorePlain]: Start of recursive call 4: End of recursive call: and 1 xjuncts. [2018-04-10 13:39:10,989 INFO L267 ElimStorePlain]: Start of recursive call 2: 2 dim-1 vars, End of recursive call: and 2 xjuncts. [2018-04-10 13:39:11,016 INFO L477 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 2 select indices, 2 select index equivalence classes, 0 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 3 case distinctions, treesize of input 23 treesize of output 35 [2018-04-10 13:39:11,031 INFO L477 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 24 treesize of output 23 [2018-04-10 13:39:11,032 INFO L267 ElimStorePlain]: Start of recursive call 6: End of recursive call: and 1 xjuncts. [2018-04-10 13:39:11,056 INFO L477 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 2 case distinctions, treesize of input 21 treesize of output 30 [2018-04-10 13:39:11,056 INFO L267 ElimStorePlain]: Start of recursive call 7: End of recursive call: and 2 xjuncts. [2018-04-10 13:39:11,066 INFO L267 ElimStorePlain]: Start of recursive call 5: 2 dim-1 vars, End of recursive call: and 2 xjuncts. [2018-04-10 13:39:11,086 INFO L267 ElimStorePlain]: Start of recursive call 1: 2 dim-2 vars, End of recursive call: and 4 xjuncts. [2018-04-10 13:39:11,086 INFO L202 ElimStorePlain]: Needed 7 recursive calls to eliminate 2 variables, input treesize:60, output treesize:203 [2018-04-10 13:39:11,170 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 [2018-04-10 13:39:11,172 INFO L700 Elim1Store]: detected not equals via solver [2018-04-10 13:39:11,172 INFO L477 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 1 select indices, 1 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 18 treesize of output 27 [2018-04-10 13:39:11,172 INFO L267 ElimStorePlain]: Start of recursive call 3: End of recursive call: and 1 xjuncts. [2018-04-10 13:39:11,183 INFO L267 ElimStorePlain]: Start of recursive call 2: 1 dim-1 vars, End of recursive call: and 1 xjuncts. [2018-04-10 13:39:11,231 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 [2018-04-10 13:39:11,237 INFO L700 Elim1Store]: detected not equals via solver [2018-04-10 13:39:11,246 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 [2018-04-10 13:39:11,247 INFO L267 ElimStorePlain]: Start of recursive call 5: End of recursive call: and 2 xjuncts. [2018-04-10 13:39:11,318 INFO L700 Elim1Store]: detected not equals via solver [2018-04-10 13:39:11,318 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 145 treesize of output 172 [2018-04-10 13:39:11,319 INFO L267 ElimStorePlain]: Start of recursive call 6: End of recursive call: and 1 xjuncts. [2018-04-10 13:39:11,359 INFO L267 ElimStorePlain]: Start of recursive call 4: 2 dim-1 vars, End of recursive call: and 2 xjuncts. [2018-04-10 13:39:11,453 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 [2018-04-10 13:39:11,456 INFO L700 Elim1Store]: detected not equals via solver [2018-04-10 13:39:11,457 INFO L700 Elim1Store]: detected not equals via solver [2018-04-10 13:39:11,457 INFO L682 Elim1Store]: detected equality via solver [2018-04-10 13:39:11,460 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 [2018-04-10 13:39:11,460 INFO L267 ElimStorePlain]: Start of recursive call 8: End of recursive call: and 1 xjuncts. [2018-04-10 13:39:11,471 INFO L267 ElimStorePlain]: Start of recursive call 7: 1 dim-1 vars, End of recursive call: and 1 xjuncts. [2018-04-10 13:39:11,486 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 [2018-04-10 13:39:11,491 INFO L700 Elim1Store]: detected not equals via solver [2018-04-10 13:39:11,492 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 [2018-04-10 13:39:11,492 INFO L267 ElimStorePlain]: Start of recursive call 10: End of recursive call: and 1 xjuncts. [2018-04-10 13:39:11,535 INFO L700 Elim1Store]: detected not equals via solver [2018-04-10 13:39:11,543 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 [2018-04-10 13:39:11,544 INFO L267 ElimStorePlain]: Start of recursive call 11: End of recursive call: and 2 xjuncts. [2018-04-10 13:39:11,581 INFO L267 ElimStorePlain]: Start of recursive call 9: 2 dim-1 vars, End of recursive call: and 2 xjuncts. [2018-04-10 13:39:11,628 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 [2018-04-10 13:39:11,630 INFO L700 Elim1Store]: detected not equals via solver [2018-04-10 13:39:11,631 INFO L477 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 1 select indices, 1 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 18 treesize of output 27 [2018-04-10 13:39:11,631 INFO L267 ElimStorePlain]: Start of recursive call 13: End of recursive call: and 1 xjuncts. [2018-04-10 13:39:11,642 INFO L267 ElimStorePlain]: Start of recursive call 12: 1 dim-1 vars, End of recursive call: and 1 xjuncts. [2018-04-10 13:39:11,679 INFO L267 ElimStorePlain]: Start of recursive call 1: 4 dim-2 vars, End of recursive call: and 3 xjuncts. [2018-04-10 13:39:11,679 INFO L202 ElimStorePlain]: Needed 13 recursive calls to eliminate 4 variables, input treesize:235, output treesize:267 [2018-04-10 13:39:11,759 WARN L307 Elim1Store]: Array PQE input equivalent to false [2018-04-10 13:39:11,759 INFO L267 ElimStorePlain]: Start of recursive call 2: End of recursive call: and 1 xjuncts. [2018-04-10 13:39:11,791 INFO L700 Elim1Store]: detected not equals via solver [2018-04-10 13:39:11,792 INFO L700 Elim1Store]: detected not equals via solver [2018-04-10 13:39:11,792 INFO L477 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 2 select indices, 2 select index equivalence classes, 2 disjoint index pairs (out of 1 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 17 treesize of output 10 [2018-04-10 13:39:11,792 INFO L267 ElimStorePlain]: Start of recursive call 3: End of recursive call: and 1 xjuncts. [2018-04-10 13:39:11,809 INFO L267 ElimStorePlain]: Start of recursive call 1: 3 dim-1 vars, End of recursive call: and 1 xjuncts. [2018-04-10 13:39:11,809 INFO L202 ElimStorePlain]: Needed 3 recursive calls to eliminate 3 variables, input treesize:291, output treesize:144 [2018-04-10 13:39:11,953 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 [2018-04-10 13:39:11,953 INFO L267 ElimStorePlain]: Start of recursive call 2: End of recursive call: and 1 xjuncts. [2018-04-10 13:39:11,969 INFO L700 Elim1Store]: detected not equals via solver [2018-04-10 13:39:11,969 INFO L700 Elim1Store]: detected not equals via solver [2018-04-10 13:39:11,970 INFO L477 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 2 select indices, 2 select index equivalence classes, 2 disjoint index pairs (out of 1 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 11 treesize of output 4 [2018-04-10 13:39:11,970 INFO L267 ElimStorePlain]: Start of recursive call 3: End of recursive call: and 1 xjuncts. [2018-04-10 13:39:11,982 INFO L267 ElimStorePlain]: Start of recursive call 1: 1 dim-0 vars, 2 dim-1 vars, End of recursive call: 1 dim-0 vars, and 1 xjuncts. [2018-04-10 13:39:11,983 INFO L202 ElimStorePlain]: Needed 3 recursive calls to eliminate 3 variables, input treesize:158, output treesize:141 [2018-04-10 13:39:12,200 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 [2018-04-10 13:39:12,204 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 [2018-04-10 13:39:12,204 INFO L267 ElimStorePlain]: Start of recursive call 3: End of recursive call: and 1 xjuncts. [2018-04-10 13:39:12,251 INFO L700 Elim1Store]: detected not equals via solver [2018-04-10 13:39:12,263 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 [2018-04-10 13:39:12,264 INFO L267 ElimStorePlain]: Start of recursive call 4: End of recursive call: and 4 xjuncts. [2018-04-10 13:39:12,316 INFO L267 ElimStorePlain]: Start of recursive call 2: 2 dim-1 vars, End of recursive call: and 3 xjuncts. [2018-04-10 13:39:12,372 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 [2018-04-10 13:39:12,374 INFO L700 Elim1Store]: detected not equals via solver [2018-04-10 13:39:12,375 INFO L700 Elim1Store]: detected not equals via solver [2018-04-10 13:39:12,375 INFO L682 Elim1Store]: detected equality via solver [2018-04-10 13:39:12,377 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 [2018-04-10 13:39:12,377 INFO L267 ElimStorePlain]: Start of recursive call 6: End of recursive call: and 1 xjuncts. [2018-04-10 13:39:12,392 INFO L267 ElimStorePlain]: Start of recursive call 5: 1 dim-1 vars, End of recursive call: and 1 xjuncts. [2018-04-10 13:39:12,399 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 [2018-04-10 13:39:12,402 INFO L700 Elim1Store]: detected not equals via solver [2018-04-10 13:39:12,402 INFO L682 Elim1Store]: detected equality via solver [2018-04-10 13:39:12,412 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 [2018-04-10 13:39:12,413 INFO L267 ElimStorePlain]: Start of recursive call 8: End of recursive call: and 1 xjuncts. [2018-04-10 13:39:12,425 INFO L267 ElimStorePlain]: Start of recursive call 7: 1 dim-1 vars, End of recursive call: and 1 xjuncts. [2018-04-10 13:39:12,440 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 [2018-04-10 13:39:12,443 INFO L700 Elim1Store]: detected not equals via solver [2018-04-10 13:39:12,455 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 142 treesize of output 193 [2018-04-10 13:39:12,456 INFO L267 ElimStorePlain]: Start of recursive call 10: End of recursive call: and 4 xjuncts. [2018-04-10 13:39:12,551 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 145 treesize of output 144 [2018-04-10 13:39:12,552 INFO L267 ElimStorePlain]: Start of recursive call 11: End of recursive call: and 1 xjuncts. [2018-04-10 13:39:12,611 INFO L267 ElimStorePlain]: Start of recursive call 9: 2 dim-1 vars, End of recursive call: and 3 xjuncts. [2018-04-10 13:39:12,668 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. [2018-04-10 13:39:12,668 INFO L202 ElimStorePlain]: Needed 11 recursive calls to eliminate 5 variables, input treesize:170, output treesize:327 [2018-04-10 13:39:12,818 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 170 treesize of output 177 [2018-04-10 13:39:12,821 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 177 treesize of output 176 [2018-04-10 13:39:12,821 INFO L267 ElimStorePlain]: Start of recursive call 3: End of recursive call: and 1 xjuncts. [2018-04-10 13:39:12,878 INFO L267 ElimStorePlain]: Start of recursive call 2: 2 dim-1 vars, End of recursive call: and 1 xjuncts. [2018-04-10 13:39:13,020 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 166 treesize of output 182 [2018-04-10 13:39:13,022 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 [2018-04-10 13:39:13,023 INFO L267 ElimStorePlain]: Start of recursive call 5: End of recursive call: and 1 xjuncts. [2018-04-10 13:39:13,112 INFO L267 ElimStorePlain]: Start of recursive call 4: 2 dim-1 vars, End of recursive call: and 1 xjuncts. [2018-04-10 13:39:13,214 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 155 treesize of output 138 [2018-04-10 13:39:13,216 INFO L700 Elim1Store]: detected not equals via solver [2018-04-10 13:39:13,217 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 [2018-04-10 13:39:13,217 INFO L267 ElimStorePlain]: Start of recursive call 7: End of recursive call: and 1 xjuncts. [2018-04-10 13:39:13,231 INFO L267 ElimStorePlain]: Start of recursive call 6: 1 dim-1 vars, End of recursive call: and 1 xjuncts. [2018-04-10 13:39:13,312 INFO L682 Elim1Store]: detected equality via solver [2018-04-10 13:39:13,313 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 [2018-04-10 13:39:13,314 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 [2018-04-10 13:39:13,315 INFO L267 ElimStorePlain]: Start of recursive call 9: End of recursive call: and 1 xjuncts. [2018-04-10 13:39:13,326 INFO L267 ElimStorePlain]: Start of recursive call 8: 1 dim-1 vars, End of recursive call: and 1 xjuncts. [2018-04-10 13:39:13,394 INFO L682 Elim1Store]: detected equality via solver [2018-04-10 13:39:13,395 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 [2018-04-10 13:39:13,397 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 [2018-04-10 13:39:13,397 INFO L267 ElimStorePlain]: Start of recursive call 11: End of recursive call: and 1 xjuncts. [2018-04-10 13:39:13,406 INFO L267 ElimStorePlain]: Start of recursive call 10: 1 dim-1 vars, End of recursive call: and 1 xjuncts. [2018-04-10 13:39:13,466 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 145 treesize of output 131 [2018-04-10 13:39:13,468 INFO L700 Elim1Store]: detected not equals via solver [2018-04-10 13:39:13,468 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 [2018-04-10 13:39:13,469 INFO L267 ElimStorePlain]: Start of recursive call 13: End of recursive call: and 1 xjuncts. [2018-04-10 13:39:13,483 INFO L267 ElimStorePlain]: Start of recursive call 12: 1 dim-1 vars, End of recursive call: and 1 xjuncts. [2018-04-10 13:39:13,529 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. [2018-04-10 13:39:13,529 INFO L202 ElimStorePlain]: Needed 13 recursive calls to eliminate 11 variables, input treesize:481, output treesize:391 [2018-04-10 13:39:13,679 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 [2018-04-10 13:39:13,681 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 [2018-04-10 13:39:13,681 INFO L267 ElimStorePlain]: Start of recursive call 3: End of recursive call: and 1 xjuncts. [2018-04-10 13:39:13,693 INFO L682 Elim1Store]: detected equality via solver [2018-04-10 13:39:13,694 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 [2018-04-10 13:39:13,694 INFO L267 ElimStorePlain]: Start of recursive call 4: End of recursive call: and 1 xjuncts. [2018-04-10 13:39:13,704 INFO L267 ElimStorePlain]: Start of recursive call 2: 2 dim-1 vars, End of recursive call: and 1 xjuncts. [2018-04-10 13:39:13,732 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 [2018-04-10 13:39:13,733 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 [2018-04-10 13:39:13,733 INFO L267 ElimStorePlain]: Start of recursive call 6: End of recursive call: and 1 xjuncts. [2018-04-10 13:39:13,741 INFO L682 Elim1Store]: detected equality via solver [2018-04-10 13:39:13,741 INFO L477 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 2 select indices, 2 select index equivalence classes, 0 disjoint index pairs (out of 1 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 24 treesize of output 16 [2018-04-10 13:39:13,742 INFO L267 ElimStorePlain]: Start of recursive call 7: End of recursive call: and 1 xjuncts. [2018-04-10 13:39:13,747 INFO L267 ElimStorePlain]: Start of recursive call 5: 2 dim-1 vars, End of recursive call: and 1 xjuncts. [2018-04-10 13:39:13,772 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 [2018-04-10 13:39:13,774 INFO L700 Elim1Store]: detected not equals via solver [2018-04-10 13:39:13,775 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 23 treesize of output 16 [2018-04-10 13:39:13,775 INFO L267 ElimStorePlain]: Start of recursive call 9: End of recursive call: and 1 xjuncts. [2018-04-10 13:39:13,789 INFO L682 Elim1Store]: detected equality via solver [2018-04-10 13:39:13,789 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 62 treesize of output 46 [2018-04-10 13:39:13,789 INFO L267 ElimStorePlain]: Start of recursive call 10: End of recursive call: and 1 xjuncts. [2018-04-10 13:39:13,799 INFO L267 ElimStorePlain]: Start of recursive call 8: 2 dim-1 vars, End of recursive call: and 1 xjuncts. [2018-04-10 13:39:13,817 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 [2018-04-10 13:39:13,819 INFO L700 Elim1Store]: detected not equals via solver [2018-04-10 13:39:13,819 INFO L477 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 2 select indices, 2 select index equivalence classes, 1 disjoint index pairs (out of 1 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 15 treesize of output 8 [2018-04-10 13:39:13,819 INFO L267 ElimStorePlain]: Start of recursive call 12: End of recursive call: and 1 xjuncts. [2018-04-10 13:39:13,835 INFO L682 Elim1Store]: detected equality via solver [2018-04-10 13:39:13,836 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 [2018-04-10 13:39:13,836 INFO L267 ElimStorePlain]: Start of recursive call 13: End of recursive call: and 1 xjuncts. [2018-04-10 13:39:13,842 INFO L267 ElimStorePlain]: Start of recursive call 11: 2 dim-1 vars, End of recursive call: and 1 xjuncts. [2018-04-10 13:39:13,856 INFO L267 ElimStorePlain]: Start of recursive call 1: 6 dim-0 vars, 4 dim-2 vars, End of recursive call: and 1 xjuncts. [2018-04-10 13:39:13,856 INFO L202 ElimStorePlain]: Needed 13 recursive calls to eliminate 10 variables, input treesize:265, output treesize:14 [2018-04-10 13:39:13,898 INFO L134 CoverageAnalysis]: Checked inductivity of 10 backedges. 2 proven. 8 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-04-10 13:39:13,916 INFO L320 seRefinementStrategy]: Constructing automaton from 0 perfect and 2 imperfect interpolant sequences. [2018-04-10 13:39:13,916 INFO L335 seRefinementStrategy]: Number of different interpolants: perfect sequences [] imperfect sequences [20, 23] total 41 [2018-04-10 13:39:13,916 INFO L442 AbstractCegarLoop]: Interpolant automaton has 42 states [2018-04-10 13:39:13,916 INFO L132 InterpolantAutomaton]: Constructing interpolant automaton starting with 42 interpolants. [2018-04-10 13:39:13,917 INFO L133 InterpolantAutomaton]: CoverageRelationStatistics Valid=112, Invalid=1610, Unknown=0, NotChecked=0, Total=1722 [2018-04-10 13:39:13,917 INFO L87 Difference]: Start difference. First operand 186 states and 201 transitions. Second operand 42 states. [2018-04-10 13:39:14,789 WARN L151 SmtUtils]: Spent 127ms on a formula simplification. DAG size of input: 114 DAG size of output 99 [2018-04-10 13:39:15,615 WARN L151 SmtUtils]: Spent 104ms on a formula simplification. DAG size of input: 188 DAG size of output 94 [2018-04-10 13:39:17,400 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-04-10 13:39:17,401 INFO L93 Difference]: Finished difference Result 245 states and 267 transitions. [2018-04-10 13:39:17,401 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 32 states. [2018-04-10 13:39:17,401 INFO L78 Accepts]: Start accepts. Automaton has 42 states. Word has length 50 [2018-04-10 13:39:17,401 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-04-10 13:39:17,402 INFO L225 Difference]: With dead ends: 245 [2018-04-10 13:39:17,402 INFO L226 Difference]: Without dead ends: 245 [2018-04-10 13:39:17,403 INFO L567 BasicCegarLoop]: 0 DeclaredPredicates, 100 GetRequests, 32 SyntacticMatches, 1 SemanticMatches, 67 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 883 ImplicationChecksByTransitivity, 3.4s TimeCoverageRelationStatistics Valid=526, Invalid=4166, Unknown=0, NotChecked=0, Total=4692 [2018-04-10 13:39:17,404 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 245 states. [2018-04-10 13:39:17,407 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 245 to 186. [2018-04-10 13:39:17,407 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 186 states. [2018-04-10 13:39:17,408 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 186 states to 186 states and 200 transitions. [2018-04-10 13:39:17,408 INFO L78 Accepts]: Start accepts. Automaton has 186 states and 200 transitions. Word has length 50 [2018-04-10 13:39:17,408 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-04-10 13:39:17,408 INFO L459 AbstractCegarLoop]: Abstraction has 186 states and 200 transitions. [2018-04-10 13:39:17,408 INFO L460 AbstractCegarLoop]: Interpolant automaton has 42 states. [2018-04-10 13:39:17,408 INFO L276 IsEmpty]: Start isEmpty. Operand 186 states and 200 transitions. [2018-04-10 13:39:17,409 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 53 [2018-04-10 13:39:17,409 INFO L347 BasicCegarLoop]: Found error trace [2018-04-10 13:39:17,409 INFO L355 BasicCegarLoop]: trace histogram [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] [2018-04-10 13:39:17,409 INFO L408 AbstractCegarLoop]: === Iteration 16 === [mainErr5RequiresViolation, mainErr13RequiresViolation, mainErr25AssertViolationMEMORY_FREE, mainErr14AssertViolationMEMORY_FREE, mainErr18RequiresViolation, mainErr0RequiresViolation, mainErr21RequiresViolation, mainErr3RequiresViolation, mainErr28EnsuresViolationMEMORY_LEAK, mainErr16RequiresViolation, mainErr2RequiresViolation, mainErr12RequiresViolation, mainErr6RequiresViolation, mainErr19RequiresViolation, mainErr24AssertViolationMEMORY_FREE, mainErr1RequiresViolation, mainErr17RequiresViolation, mainErr23AssertViolationMEMORY_FREE, mainErr9RequiresViolation, mainErr22AssertViolationMEMORY_FREE, mainErr7RequiresViolation, mainErr20RequiresViolation, mainErr11RequiresViolation, mainErr26AssertViolationMEMORY_FREE, mainErr8RequiresViolation, mainErr10RequiresViolation, mainErr4RequiresViolation, mainErr15AssertViolationMEMORY_FREE, mainErr27AssertViolationMEMORY_FREE, __U_MULTI_flength_test___false_valid_memtrack_i__appendErr2RequiresViolation, __U_MULTI_flength_test___false_valid_memtrack_i__appendErr18RequiresViolation, __U_MULTI_flength_test___false_valid_memtrack_i__appendErr23RequiresViolation, __U_MULTI_flength_test___false_valid_memtrack_i__appendErr21RequiresViolation, __U_MULTI_flength_test___false_valid_memtrack_i__appendErr13RequiresViolation, __U_MULTI_flength_test___false_valid_memtrack_i__appendErr24RequiresViolation, __U_MULTI_flength_test___false_valid_memtrack_i__appendErr4RequiresViolation, __U_MULTI_flength_test___false_valid_memtrack_i__appendErr10RequiresViolation, __U_MULTI_flength_test___false_valid_memtrack_i__appendErr20RequiresViolation, __U_MULTI_flength_test___false_valid_memtrack_i__appendErr3RequiresViolation, __U_MULTI_flength_test___false_valid_memtrack_i__appendErr11RequiresViolation, __U_MULTI_flength_test___false_valid_memtrack_i__appendErr7RequiresViolation, __U_MULTI_flength_test___false_valid_memtrack_i__appendErr0RequiresViolation, __U_MULTI_flength_test___false_valid_memtrack_i__appendErr14RequiresViolation, __U_MULTI_flength_test___false_valid_memtrack_i__appendErr22RequiresViolation, __U_MULTI_flength_test___false_valid_memtrack_i__appendErr12RequiresViolation, __U_MULTI_flength_test___false_valid_memtrack_i__appendErr17RequiresViolation, __U_MULTI_flength_test___false_valid_memtrack_i__appendErr25RequiresViolation, __U_MULTI_flength_test___false_valid_memtrack_i__appendErr1RequiresViolation, __U_MULTI_flength_test___false_valid_memtrack_i__appendErr6RequiresViolation, __U_MULTI_flength_test___false_valid_memtrack_i__appendErr8RequiresViolation, __U_MULTI_flength_test___false_valid_memtrack_i__appendErr19RequiresViolation, __U_MULTI_flength_test___false_valid_memtrack_i__appendErr15RequiresViolation, __U_MULTI_flength_test___false_valid_memtrack_i__appendErr9RequiresViolation, __U_MULTI_flength_test___false_valid_memtrack_i__appendErr5RequiresViolation, __U_MULTI_flength_test___false_valid_memtrack_i__appendErr16RequiresViolation]=== [2018-04-10 13:39:17,410 INFO L82 PathProgramCache]: Analyzing trace with hash 1788489223, now seen corresponding path program 1 times [2018-04-10 13:39:17,410 INFO L213 ckRefinementStrategy]: Switched to mode SMTINTERPOL_TREE_INTERPOLANTS [2018-04-10 13:39:17,410 INFO L68 tionRefinementEngine]: Using refinement strategy CamelRefinementStrategy [2018-04-10 13:39:17,410 INFO L119 rtionOrderModulation]: Craig nested/tree interpolation forces the following order [2018-04-10 13:39:17,411 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-04-10 13:39:17,411 INFO L119 rtionOrderModulation]: Craig nested/tree interpolation forces the following order [2018-04-10 13:39:17,429 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-04-10 13:39:17,430 WARN L137 erpolLogProxyWrapper]: Using partial proofs (cut at CNF-level). Set option :produce-proofs to true to get complete proofs. [2018-04-10 13:39:17,952 INFO L134 CoverageAnalysis]: Checked inductivity of 8 backedges. 1 proven. 7 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-04-10 13:39:17,952 INFO L308 seRefinementStrategy]: The current sequences of interpolants are not accepted, trying to find more. [2018-04-10 13:39:17,952 INFO L213 ckRefinementStrategy]: Switched to mode Z3_FP No working directory specified, using /home/ultimate/work/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 [2018-04-10 13:39:17,958 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-04-10 13:39:17,979 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-04-10 13:39:17,983 INFO L270 TraceCheckSpWp]: Computing forward predicates... [2018-04-10 13:39:17,988 INFO L700 Elim1Store]: detected not equals via solver [2018-04-10 13:39:17,988 INFO L700 Elim1Store]: detected not equals via solver [2018-04-10 13:39:17,988 INFO L477 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 2 select indices, 2 select index equivalence classes, 2 disjoint index pairs (out of 1 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 11 treesize of output 4 [2018-04-10 13:39:17,989 INFO L267 ElimStorePlain]: Start of recursive call 2: End of recursive call: and 1 xjuncts. [2018-04-10 13:39:17,990 INFO L267 ElimStorePlain]: Start of recursive call 1: 1 dim-1 vars, End of recursive call: and 1 xjuncts. [2018-04-10 13:39:17,990 INFO L202 ElimStorePlain]: Needed 2 recursive calls to eliminate 1 variables, input treesize:11, output treesize:4 [2018-04-10 13:39:18,042 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 [2018-04-10 13:39:18,043 INFO L477 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 8 treesize of output 7 [2018-04-10 13:39:18,043 INFO L267 ElimStorePlain]: Start of recursive call 3: End of recursive call: and 1 xjuncts. [2018-04-10 13:39:18,044 INFO L267 ElimStorePlain]: Start of recursive call 2: 1 dim-1 vars, End of recursive call: and 1 xjuncts. [2018-04-10 13:39:18,052 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 [2018-04-10 13:39:18,053 INFO L477 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 8 treesize of output 7 [2018-04-10 13:39:18,054 INFO L267 ElimStorePlain]: Start of recursive call 5: End of recursive call: and 1 xjuncts. [2018-04-10 13:39:18,055 INFO L267 ElimStorePlain]: Start of recursive call 4: 1 dim-1 vars, End of recursive call: and 1 xjuncts. [2018-04-10 13:39:18,059 INFO L267 ElimStorePlain]: Start of recursive call 1: 2 dim-2 vars, End of recursive call: and 1 xjuncts. [2018-04-10 13:39:18,060 INFO L202 ElimStorePlain]: Needed 5 recursive calls to eliminate 2 variables, input treesize:32, output treesize:24 [2018-04-10 13:39:18,075 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 [2018-04-10 13:39:18,077 INFO L700 Elim1Store]: detected not equals via solver [2018-04-10 13:39:18,079 INFO L477 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 1 select indices, 1 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 16 treesize of output 23 [2018-04-10 13:39:18,080 INFO L267 ElimStorePlain]: Start of recursive call 3: End of recursive call: and 1 xjuncts. [2018-04-10 13:39:18,084 INFO L267 ElimStorePlain]: Start of recursive call 2: 1 dim-1 vars, End of recursive call: and 1 xjuncts. [2018-04-10 13:39:18,098 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 [2018-04-10 13:39:18,102 INFO L700 Elim1Store]: detected not equals via solver [2018-04-10 13:39:18,102 INFO L477 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 1 select indices, 1 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 16 treesize of output 23 [2018-04-10 13:39:18,102 INFO L267 ElimStorePlain]: Start of recursive call 5: End of recursive call: and 1 xjuncts. [2018-04-10 13:39:18,106 INFO L267 ElimStorePlain]: Start of recursive call 4: 1 dim-1 vars, End of recursive call: and 1 xjuncts. [2018-04-10 13:39:18,113 INFO L267 ElimStorePlain]: Start of recursive call 1: 2 dim-2 vars, End of recursive call: and 1 xjuncts. [2018-04-10 13:39:18,113 INFO L202 ElimStorePlain]: Needed 5 recursive calls to eliminate 2 variables, input treesize:50, output treesize:42 [2018-04-10 13:39:18,376 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 [2018-04-10 13:39:18,490 WARN L148 SmtUtils]: Spent 109ms on a formula simplification that was a NOOP. DAG size: 70 [2018-04-10 13:39:18,495 INFO L700 Elim1Store]: detected not equals via solver [2018-04-10 13:39:18,497 INFO L700 Elim1Store]: detected not equals via solver [2018-04-10 13:39:18,498 INFO L477 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 2 select indices, 2 select index equivalence classes, 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 [2018-04-10 13:39:18,498 INFO L267 ElimStorePlain]: Start of recursive call 2: End of recursive call: and 1 xjuncts. [2018-04-10 13:39:18,610 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 [2018-04-10 13:39:18,613 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 [2018-04-10 13:39:18,616 INFO L700 Elim1Store]: detected not equals via solver [2018-04-10 13:39:18,616 INFO L477 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 1 select indices, 1 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 16 treesize of output 23 [2018-04-10 13:39:18,616 INFO L267 ElimStorePlain]: Start of recursive call 5: End of recursive call: and 1 xjuncts. [2018-04-10 13:39:18,622 INFO L267 ElimStorePlain]: Start of recursive call 4: 1 dim-1 vars, End of recursive call: and 1 xjuncts. [2018-04-10 13:39:18,652 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 [2018-04-10 13:39:18,654 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 [2018-04-10 13:39:18,656 INFO L700 Elim1Store]: detected not equals via solver [2018-04-10 13:39:18,657 INFO L477 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 1 select indices, 1 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 18 treesize of output 27 [2018-04-10 13:39:18,657 INFO L267 ElimStorePlain]: Start of recursive call 8: End of recursive call: and 1 xjuncts. [2018-04-10 13:39:18,664 INFO L267 ElimStorePlain]: Start of recursive call 7: 1 dim-1 vars, End of recursive call: and 1 xjuncts. [2018-04-10 13:39:18,682 INFO L267 ElimStorePlain]: Start of recursive call 6: 1 dim-1 vars, End of recursive call: and 1 xjuncts. [2018-04-10 13:39:18,700 INFO L267 ElimStorePlain]: Start of recursive call 3: 1 dim-1 vars, 1 dim-2 vars, End of recursive call: and 1 xjuncts. [2018-04-10 13:39:18,707 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 [2018-04-10 13:39:18,709 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 [2018-04-10 13:39:18,713 INFO L700 Elim1Store]: detected not equals via solver [2018-04-10 13:39:18,713 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 [2018-04-10 13:39:18,714 INFO L267 ElimStorePlain]: Start of recursive call 11: End of recursive call: and 1 xjuncts. [2018-04-10 13:39:18,721 INFO L267 ElimStorePlain]: Start of recursive call 10: 1 dim-1 vars, End of recursive call: and 1 xjuncts. [2018-04-10 13:39:18,750 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 [2018-04-10 13:39:18,753 INFO L700 Elim1Store]: detected not equals via solver [2018-04-10 13:39:18,765 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 [2018-04-10 13:39:18,770 INFO L700 Elim1Store]: detected not equals via solver [2018-04-10 13:39:18,772 INFO L700 Elim1Store]: detected not equals via solver [2018-04-10 13:39:18,787 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 36 treesize of output 55 [2018-04-10 13:39:18,788 INFO L267 ElimStorePlain]: Start of recursive call 14: End of recursive call: and 2 xjuncts. [2018-04-10 13:39:18,835 INFO L700 Elim1Store]: detected not equals via solver [2018-04-10 13:39:18,835 INFO L700 Elim1Store]: detected not equals via solver [2018-04-10 13:39:18,836 INFO L700 Elim1Store]: detected not equals via solver [2018-04-10 13:39:18,838 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 [2018-04-10 13:39:18,838 INFO L267 ElimStorePlain]: Start of recursive call 15: End of recursive call: and 1 xjuncts. [2018-04-10 13:39:18,876 INFO L700 Elim1Store]: detected not equals via solver [2018-04-10 13:39:18,876 INFO L700 Elim1Store]: detected not equals via solver [2018-04-10 13:39:18,877 INFO L682 Elim1Store]: detected equality via solver [2018-04-10 13:39:18,878 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 [2018-04-10 13:39:18,879 INFO L267 ElimStorePlain]: Start of recursive call 16: End of recursive call: and 1 xjuncts. [2018-04-10 13:39:18,943 INFO L267 ElimStorePlain]: Start of recursive call 13: 4 dim-1 vars, End of recursive call: and 4 xjuncts. [2018-04-10 13:39:18,976 INFO L267 ElimStorePlain]: Start of recursive call 12: 1 dim-1 vars, End of recursive call: and 4 xjuncts. [2018-04-10 13:39:19,048 INFO L267 ElimStorePlain]: Start of recursive call 9: 1 dim-1 vars, 1 dim-2 vars, End of recursive call: and 4 xjuncts. [2018-04-10 13:39:19,148 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 [2018-04-10 13:39:19,150 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 [2018-04-10 13:39:19,152 INFO L700 Elim1Store]: detected not equals via solver [2018-04-10 13:39:19,153 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 [2018-04-10 13:39:19,153 INFO L267 ElimStorePlain]: Start of recursive call 19: End of recursive call: and 1 xjuncts. [2018-04-10 13:39:19,157 INFO L267 ElimStorePlain]: Start of recursive call 18: 1 dim-1 vars, End of recursive call: and 1 xjuncts. [2018-04-10 13:39:19,178 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 [2018-04-10 13:39:19,180 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 [2018-04-10 13:39:19,182 INFO L700 Elim1Store]: detected not equals via solver [2018-04-10 13:39:19,183 INFO L477 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 1 select indices, 1 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 18 treesize of output 27 [2018-04-10 13:39:19,183 INFO L267 ElimStorePlain]: Start of recursive call 22: End of recursive call: and 1 xjuncts. [2018-04-10 13:39:19,187 INFO L267 ElimStorePlain]: Start of recursive call 21: 1 dim-1 vars, End of recursive call: and 1 xjuncts. [2018-04-10 13:39:19,195 INFO L267 ElimStorePlain]: Start of recursive call 20: 1 dim-1 vars, End of recursive call: and 1 xjuncts. [2018-04-10 13:39:19,203 INFO L267 ElimStorePlain]: Start of recursive call 17: 1 dim-1 vars, 1 dim-2 vars, End of recursive call: and 1 xjuncts. [2018-04-10 13:39:19,208 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 [2018-04-10 13:39:19,211 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 [2018-04-10 13:39:19,214 INFO L700 Elim1Store]: detected not equals via solver [2018-04-10 13:39:19,214 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 [2018-04-10 13:39:19,214 INFO L267 ElimStorePlain]: Start of recursive call 25: End of recursive call: and 1 xjuncts. [2018-04-10 13:39:19,221 INFO L267 ElimStorePlain]: Start of recursive call 24: 1 dim-1 vars, End of recursive call: and 1 xjuncts. [2018-04-10 13:39:19,236 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 [2018-04-10 13:39:19,238 INFO L700 Elim1Store]: detected not equals via solver [2018-04-10 13:39:19,251 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 [2018-04-10 13:39:19,253 WARN L307 Elim1Store]: Array PQE input equivalent to false [2018-04-10 13:39:19,253 INFO L267 ElimStorePlain]: Start of recursive call 28: End of recursive call: and 1 xjuncts. [2018-04-10 13:39:19,275 INFO L700 Elim1Store]: detected not equals via solver [2018-04-10 13:39:19,277 INFO L700 Elim1Store]: detected not equals via solver [2018-04-10 13:39:19,291 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 [2018-04-10 13:39:19,291 INFO L267 ElimStorePlain]: Start of recursive call 29: End of recursive call: and 2 xjuncts. [2018-04-10 13:39:19,322 INFO L700 Elim1Store]: detected not equals via solver [2018-04-10 13:39:19,322 INFO L700 Elim1Store]: detected not equals via solver [2018-04-10 13:39:19,323 INFO L682 Elim1Store]: detected equality via solver [2018-04-10 13:39:19,325 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 [2018-04-10 13:39:19,326 INFO L267 ElimStorePlain]: Start of recursive call 30: End of recursive call: and 1 xjuncts. [2018-04-10 13:39:19,354 INFO L700 Elim1Store]: detected not equals via solver [2018-04-10 13:39:19,355 INFO L700 Elim1Store]: detected not equals via solver [2018-04-10 13:39:19,355 INFO L700 Elim1Store]: detected not equals via solver [2018-04-10 13:39:19,357 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 [2018-04-10 13:39:19,357 INFO L267 ElimStorePlain]: Start of recursive call 31: End of recursive call: and 1 xjuncts. [2018-04-10 13:39:19,382 INFO L267 ElimStorePlain]: Start of recursive call 27: 4 dim-1 vars, End of recursive call: and 4 xjuncts. [2018-04-10 13:39:19,406 INFO L267 ElimStorePlain]: Start of recursive call 26: 1 dim-1 vars, End of recursive call: and 4 xjuncts. [2018-04-10 13:39:19,437 INFO L267 ElimStorePlain]: Start of recursive call 23: 1 dim-1 vars, 1 dim-2 vars, End of recursive call: and 4 xjuncts. [2018-04-10 13:39:19,527 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. [2018-04-10 13:39:19,527 INFO L202 ElimStorePlain]: Needed 31 recursive calls to eliminate 7 variables, input treesize:135, output treesize:1536 [2018-04-10 13:39:31,822 WARN L151 SmtUtils]: Spent 9997ms on a formula simplification. DAG size of input: 330 DAG size of output 35 [2018-04-10 13:39:31,937 INFO L477 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 0 stores, 2 select indices, 2 select index equivalence classes, 1 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 0 case distinctions, treesize of input 40 treesize of output 34 [2018-04-10 13:39:31,939 INFO L700 Elim1Store]: detected not equals via solver [2018-04-10 13:39:31,939 INFO L477 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 2 select indices, 2 select index equivalence classes, 1 disjoint index pairs (out of 1 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 18 treesize of output 10 [2018-04-10 13:39:31,939 INFO L267 ElimStorePlain]: Start of recursive call 3: End of recursive call: and 1 xjuncts. [2018-04-10 13:39:31,946 INFO L700 Elim1Store]: detected not equals via solver [2018-04-10 13:39:31,947 INFO L477 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 2 select indices, 2 select index equivalence classes, 1 disjoint index pairs (out of 1 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 13 treesize of output 6 [2018-04-10 13:39:31,947 INFO L267 ElimStorePlain]: Start of recursive call 4: End of recursive call: and 1 xjuncts. [2018-04-10 13:39:31,949 INFO L267 ElimStorePlain]: Start of recursive call 2: 2 dim-1 vars, End of recursive call: and 1 xjuncts. [2018-04-10 13:39:31,959 INFO L477 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 0 stores, 2 select indices, 2 select index equivalence classes, 1 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 0 case distinctions, treesize of input 40 treesize of output 34 [2018-04-10 13:39:31,961 INFO L700 Elim1Store]: detected not equals via solver [2018-04-10 13:39:31,961 INFO L477 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 2 select indices, 2 select index equivalence classes, 1 disjoint index pairs (out of 1 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 18 treesize of output 10 [2018-04-10 13:39:31,961 INFO L267 ElimStorePlain]: Start of recursive call 6: End of recursive call: and 1 xjuncts. [2018-04-10 13:39:31,971 INFO L700 Elim1Store]: detected not equals via solver [2018-04-10 13:39:31,972 INFO L477 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 2 select indices, 2 select index equivalence classes, 1 disjoint index pairs (out of 1 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 13 treesize of output 6 [2018-04-10 13:39:31,972 INFO L267 ElimStorePlain]: Start of recursive call 7: End of recursive call: and 1 xjuncts. [2018-04-10 13:39:31,974 INFO L267 ElimStorePlain]: Start of recursive call 5: 2 dim-1 vars, End of recursive call: and 1 xjuncts. [2018-04-10 13:39:31,977 INFO L267 ElimStorePlain]: Start of recursive call 1: 4 dim-0 vars, 2 dim-2 vars, End of recursive call: and 1 xjuncts. [2018-04-10 13:39:31,977 INFO L202 ElimStorePlain]: Needed 7 recursive calls to eliminate 6 variables, input treesize:83, output treesize:7 [2018-04-10 13:39:32,044 INFO L134 CoverageAnalysis]: Checked inductivity of 8 backedges. 1 proven. 7 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-04-10 13:39:32,062 INFO L320 seRefinementStrategy]: Constructing automaton from 0 perfect and 2 imperfect interpolant sequences. [2018-04-10 13:39:32,062 INFO L335 seRefinementStrategy]: Number of different interpolants: perfect sequences [] imperfect sequences [21, 20] total 35 [2018-04-10 13:39:32,062 INFO L442 AbstractCegarLoop]: Interpolant automaton has 35 states [2018-04-10 13:39:32,063 INFO L132 InterpolantAutomaton]: Constructing interpolant automaton starting with 35 interpolants. [2018-04-10 13:39:32,063 INFO L133 InterpolantAutomaton]: CoverageRelationStatistics Valid=94, Invalid=1016, Unknown=16, NotChecked=64, Total=1190 [2018-04-10 13:39:32,063 INFO L87 Difference]: Start difference. First operand 186 states and 200 transitions. Second operand 35 states. [2018-04-10 13:39:33,469 WARN L148 SmtUtils]: Spent 132ms on a formula simplification that was a NOOP. DAG size: 66 [2018-04-10 13:39:36,690 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-04-10 13:39:36,690 INFO L93 Difference]: Finished difference Result 297 states and 319 transitions. [2018-04-10 13:39:36,690 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 30 states. [2018-04-10 13:39:36,690 INFO L78 Accepts]: Start accepts. Automaton has 35 states. Word has length 52 [2018-04-10 13:39:36,691 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-04-10 13:39:36,692 INFO L225 Difference]: With dead ends: 297 [2018-04-10 13:39:36,692 INFO L226 Difference]: Without dead ends: 297 [2018-04-10 13:39:36,692 INFO L567 BasicCegarLoop]: 0 DeclaredPredicates, 99 GetRequests, 42 SyntacticMatches, 2 SemanticMatches, 55 ConstructedPredicates, 1 IntricatePredicates, 0 DeprecatedPredicates, 463 ImplicationChecksByTransitivity, 14.9s TimeCoverageRelationStatistics Valid=333, Invalid=2689, Unknown=62, NotChecked=108, Total=3192 [2018-04-10 13:39:36,693 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 297 states. [2018-04-10 13:39:36,698 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 297 to 212. [2018-04-10 13:39:36,698 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 212 states. [2018-04-10 13:39:36,698 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 212 states to 212 states and 234 transitions. [2018-04-10 13:39:36,699 INFO L78 Accepts]: Start accepts. Automaton has 212 states and 234 transitions. Word has length 52 [2018-04-10 13:39:36,699 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-04-10 13:39:36,699 INFO L459 AbstractCegarLoop]: Abstraction has 212 states and 234 transitions. [2018-04-10 13:39:36,699 INFO L460 AbstractCegarLoop]: Interpolant automaton has 35 states. [2018-04-10 13:39:36,699 INFO L276 IsEmpty]: Start isEmpty. Operand 212 states and 234 transitions. [2018-04-10 13:39:36,699 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 55 [2018-04-10 13:39:36,700 INFO L347 BasicCegarLoop]: Found error trace [2018-04-10 13:39:36,700 INFO L355 BasicCegarLoop]: trace histogram [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] [2018-04-10 13:39:36,700 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]=== [2018-04-10 13:39:36,700 INFO L82 PathProgramCache]: Analyzing trace with hash -1182477942, now seen corresponding path program 1 times [2018-04-10 13:39:36,700 INFO L213 ckRefinementStrategy]: Switched to mode SMTINTERPOL_TREE_INTERPOLANTS [2018-04-10 13:39:36,700 INFO L68 tionRefinementEngine]: Using refinement strategy CamelRefinementStrategy [2018-04-10 13:39:36,701 INFO L119 rtionOrderModulation]: Craig nested/tree interpolation forces the following order [2018-04-10 13:39:36,701 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-04-10 13:39:36,701 INFO L119 rtionOrderModulation]: Craig nested/tree interpolation forces the following order [2018-04-10 13:39:36,721 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-04-10 13:39:36,722 WARN L137 erpolLogProxyWrapper]: Using partial proofs (cut at CNF-level). Set option :produce-proofs to true to get complete proofs. [2018-04-10 13:39:37,696 INFO L134 CoverageAnalysis]: Checked inductivity of 10 backedges. 0 proven. 10 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-04-10 13:39:37,697 INFO L308 seRefinementStrategy]: The current sequences of interpolants are not accepted, trying to find more. [2018-04-10 13:39:37,697 INFO L213 ckRefinementStrategy]: Switched to mode Z3_FP No working directory specified, using /home/ultimate/work/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 [2018-04-10 13:39:37,702 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-04-10 13:39:37,723 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-04-10 13:39:37,725 INFO L270 TraceCheckSpWp]: Computing forward predicates... [2018-04-10 13:39:37,747 INFO L700 Elim1Store]: detected not equals via solver [2018-04-10 13:39:37,748 INFO L700 Elim1Store]: detected not equals via solver [2018-04-10 13:39:37,748 INFO L477 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 2 select indices, 2 select index equivalence classes, 2 disjoint index pairs (out of 1 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 11 treesize of output 4 [2018-04-10 13:39:37,748 INFO L267 ElimStorePlain]: Start of recursive call 2: End of recursive call: and 1 xjuncts. [2018-04-10 13:39:37,750 INFO L267 ElimStorePlain]: Start of recursive call 1: 1 dim-1 vars, End of recursive call: and 1 xjuncts. [2018-04-10 13:39:37,750 INFO L202 ElimStorePlain]: Needed 2 recursive calls to eliminate 1 variables, input treesize:14, output treesize:8 [2018-04-10 13:39:37,818 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 [2018-04-10 13:39:37,820 INFO L477 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 10 treesize of output 9 [2018-04-10 13:39:37,820 INFO L267 ElimStorePlain]: Start of recursive call 3: End of recursive call: and 1 xjuncts. [2018-04-10 13:39:37,821 INFO L267 ElimStorePlain]: Start of recursive call 2: 1 dim-1 vars, End of recursive call: and 1 xjuncts. [2018-04-10 13:39:37,827 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 [2018-04-10 13:39:37,828 INFO L477 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 10 treesize of output 9 [2018-04-10 13:39:37,829 INFO L267 ElimStorePlain]: Start of recursive call 5: End of recursive call: and 1 xjuncts. [2018-04-10 13:39:37,830 INFO L267 ElimStorePlain]: Start of recursive call 4: 1 dim-1 vars, End of recursive call: and 1 xjuncts. [2018-04-10 13:39:37,834 INFO L267 ElimStorePlain]: Start of recursive call 1: 2 dim-2 vars, End of recursive call: and 1 xjuncts. [2018-04-10 13:39:37,834 INFO L202 ElimStorePlain]: Needed 5 recursive calls to eliminate 2 variables, input treesize:39, output treesize:31 [2018-04-10 13:39:38,083 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 [2018-04-10 13:39:38,215 WARN L148 SmtUtils]: Spent 127ms on a formula simplification that was a NOOP. DAG size: 67 [2018-04-10 13:39:38,223 INFO L700 Elim1Store]: detected not equals via solver [2018-04-10 13:39:38,229 INFO L700 Elim1Store]: detected not equals via solver [2018-04-10 13:39:38,229 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 [2018-04-10 13:39:38,229 INFO L267 ElimStorePlain]: Start of recursive call 2: End of recursive call: and 1 xjuncts. [2018-04-10 13:39:38,347 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 [2018-04-10 13:39:38,350 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 [2018-04-10 13:39:38,353 INFO L700 Elim1Store]: detected not equals via solver [2018-04-10 13:39:38,354 INFO L477 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 1 select indices, 1 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 16 treesize of output 23 [2018-04-10 13:39:38,354 INFO L267 ElimStorePlain]: Start of recursive call 5: End of recursive call: and 1 xjuncts. [2018-04-10 13:39:38,361 INFO L267 ElimStorePlain]: Start of recursive call 4: 1 dim-1 vars, End of recursive call: and 1 xjuncts. [2018-04-10 13:39:38,391 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 [2018-04-10 13:39:38,393 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 [2018-04-10 13:39:38,395 INFO L700 Elim1Store]: detected not equals via solver [2018-04-10 13:39:38,396 INFO L477 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 1 select indices, 1 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 18 treesize of output 27 [2018-04-10 13:39:38,396 INFO L267 ElimStorePlain]: Start of recursive call 8: End of recursive call: and 1 xjuncts. [2018-04-10 13:39:38,413 INFO L267 ElimStorePlain]: Start of recursive call 7: 1 dim-1 vars, End of recursive call: and 1 xjuncts. [2018-04-10 13:39:38,424 INFO L267 ElimStorePlain]: Start of recursive call 6: 1 dim-1 vars, End of recursive call: and 1 xjuncts. [2018-04-10 13:39:38,438 INFO L267 ElimStorePlain]: Start of recursive call 3: 1 dim-1 vars, 1 dim-2 vars, End of recursive call: and 1 xjuncts. [2018-04-10 13:39:38,445 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 [2018-04-10 13:39:38,448 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 [2018-04-10 13:39:38,451 INFO L700 Elim1Store]: detected not equals via solver [2018-04-10 13:39:38,451 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 [2018-04-10 13:39:38,452 INFO L267 ElimStorePlain]: Start of recursive call 11: End of recursive call: and 1 xjuncts. [2018-04-10 13:39:38,459 INFO L267 ElimStorePlain]: Start of recursive call 10: 1 dim-1 vars, End of recursive call: and 1 xjuncts. [2018-04-10 13:39:38,484 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 [2018-04-10 13:39:38,487 INFO L700 Elim1Store]: detected not equals via solver [2018-04-10 13:39:38,500 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 [2018-04-10 13:39:38,506 INFO L700 Elim1Store]: detected not equals via solver [2018-04-10 13:39:38,507 INFO L700 Elim1Store]: detected not equals via solver [2018-04-10 13:39:38,507 INFO L682 Elim1Store]: detected equality via solver [2018-04-10 13:39:38,509 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 [2018-04-10 13:39:38,509 INFO L267 ElimStorePlain]: Start of recursive call 14: End of recursive call: and 1 xjuncts. [2018-04-10 13:39:38,568 INFO L700 Elim1Store]: detected not equals via solver [2018-04-10 13:39:38,571 INFO L700 Elim1Store]: detected not equals via solver [2018-04-10 13:39:38,586 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 [2018-04-10 13:39:38,586 INFO L267 ElimStorePlain]: Start of recursive call 15: End of recursive call: and 2 xjuncts. [2018-04-10 13:39:38,624 INFO L700 Elim1Store]: detected not equals via solver [2018-04-10 13:39:38,625 INFO L700 Elim1Store]: detected not equals via solver [2018-04-10 13:39:38,625 INFO L700 Elim1Store]: detected not equals via solver [2018-04-10 13:39:38,627 INFO L477 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 2 select indices, 2 select index equivalence classes, 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 [2018-04-10 13:39:38,628 INFO L267 ElimStorePlain]: Start of recursive call 16: End of recursive call: and 1 xjuncts. [2018-04-10 13:39:38,664 INFO L267 ElimStorePlain]: Start of recursive call 13: 4 dim-1 vars, End of recursive call: and 4 xjuncts. [2018-04-10 13:39:38,698 INFO L267 ElimStorePlain]: Start of recursive call 12: 1 dim-1 vars, End of recursive call: and 4 xjuncts. [2018-04-10 13:39:38,758 INFO L267 ElimStorePlain]: Start of recursive call 9: 1 dim-1 vars, 1 dim-2 vars, End of recursive call: and 4 xjuncts. [2018-04-10 13:39:38,857 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 [2018-04-10 13:39:38,860 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 [2018-04-10 13:39:38,863 INFO L700 Elim1Store]: detected not equals via solver [2018-04-10 13:39:38,863 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 [2018-04-10 13:39:38,863 INFO L267 ElimStorePlain]: Start of recursive call 19: End of recursive call: and 1 xjuncts. [2018-04-10 13:39:38,870 INFO L267 ElimStorePlain]: Start of recursive call 18: 1 dim-1 vars, End of recursive call: and 1 xjuncts. [2018-04-10 13:39:38,885 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 [2018-04-10 13:39:38,888 INFO L700 Elim1Store]: detected not equals via solver [2018-04-10 13:39:38,900 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 [2018-04-10 13:39:38,904 INFO L700 Elim1Store]: detected not equals via solver [2018-04-10 13:39:38,906 INFO L700 Elim1Store]: detected not equals via solver [2018-04-10 13:39:38,923 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 36 treesize of output 55 [2018-04-10 13:39:38,923 INFO L267 ElimStorePlain]: Start of recursive call 22: End of recursive call: and 2 xjuncts. [2018-04-10 13:39:38,976 INFO L700 Elim1Store]: detected not equals via solver [2018-04-10 13:39:38,977 INFO L700 Elim1Store]: detected not equals via solver [2018-04-10 13:39:38,977 INFO L700 Elim1Store]: detected not equals via solver [2018-04-10 13:39:38,979 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 [2018-04-10 13:39:38,980 INFO L267 ElimStorePlain]: Start of recursive call 23: End of recursive call: and 1 xjuncts. [2018-04-10 13:39:39,020 INFO L700 Elim1Store]: detected not equals via solver [2018-04-10 13:39:39,021 INFO L700 Elim1Store]: detected not equals via solver [2018-04-10 13:39:39,021 INFO L682 Elim1Store]: detected equality via solver [2018-04-10 13:39:39,023 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 [2018-04-10 13:39:39,024 INFO L267 ElimStorePlain]: Start of recursive call 24: End of recursive call: and 1 xjuncts. [2018-04-10 13:39:39,090 INFO L267 ElimStorePlain]: Start of recursive call 21: 4 dim-1 vars, End of recursive call: and 4 xjuncts. [2018-04-10 13:39:39,115 INFO L267 ElimStorePlain]: Start of recursive call 20: 1 dim-1 vars, End of recursive call: and 4 xjuncts. [2018-04-10 13:39:39,145 INFO L267 ElimStorePlain]: Start of recursive call 17: 1 dim-1 vars, 1 dim-2 vars, End of recursive call: and 4 xjuncts. [2018-04-10 13:39:39,154 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 [2018-04-10 13:39:39,157 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 [2018-04-10 13:39:39,159 INFO L700 Elim1Store]: detected not equals via solver [2018-04-10 13:39:39,159 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 [2018-04-10 13:39:39,159 INFO L267 ElimStorePlain]: Start of recursive call 27: End of recursive call: and 1 xjuncts. [2018-04-10 13:39:39,164 INFO L267 ElimStorePlain]: Start of recursive call 26: 1 dim-1 vars, End of recursive call: and 1 xjuncts. [2018-04-10 13:39:39,181 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 [2018-04-10 13:39:39,183 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 [2018-04-10 13:39:39,185 INFO L700 Elim1Store]: detected not equals via solver [2018-04-10 13:39:39,185 INFO L477 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 1 select indices, 1 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 18 treesize of output 27 [2018-04-10 13:39:39,185 INFO L267 ElimStorePlain]: Start of recursive call 30: End of recursive call: and 1 xjuncts. [2018-04-10 13:39:39,189 INFO L267 ElimStorePlain]: Start of recursive call 29: 1 dim-1 vars, End of recursive call: and 1 xjuncts. [2018-04-10 13:39:39,197 INFO L267 ElimStorePlain]: Start of recursive call 28: 1 dim-1 vars, End of recursive call: and 1 xjuncts. [2018-04-10 13:39:39,205 INFO L267 ElimStorePlain]: Start of recursive call 25: 1 dim-1 vars, 1 dim-2 vars, End of recursive call: and 1 xjuncts. [2018-04-10 13:39:39,285 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. [2018-04-10 13:39:39,285 INFO L202 ElimStorePlain]: Needed 30 recursive calls to eliminate 7 variables, input treesize:124, output treesize:1404 [2018-04-10 13:39:58,833 WARN L151 SmtUtils]: Spent 12950ms on a formula simplification. DAG size of input: 327 DAG size of output 32 [2018-04-10 13:39:59,329 INFO L477 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 0 stores, 2 select indices, 2 select index equivalence classes, 1 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 0 case distinctions, treesize of input 35 treesize of output 31 [2018-04-10 13:39:59,332 INFO L682 Elim1Store]: detected equality via solver [2018-04-10 13:39:59,332 INFO L477 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 2 select indices, 2 select index equivalence classes, 0 disjoint index pairs (out of 1 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 15 treesize of output 11 [2018-04-10 13:39:59,332 INFO L267 ElimStorePlain]: Start of recursive call 3: End of recursive call: and 1 xjuncts. [2018-04-10 13:39:59,341 INFO L700 Elim1Store]: detected not equals via solver [2018-04-10 13:39:59,341 INFO L477 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 2 select indices, 2 select index equivalence classes, 1 disjoint index pairs (out of 1 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 13 treesize of output 6 [2018-04-10 13:39:59,341 INFO L267 ElimStorePlain]: Start of recursive call 4: End of recursive call: and 1 xjuncts. [2018-04-10 13:39:59,344 INFO L267 ElimStorePlain]: Start of recursive call 2: 2 dim-1 vars, End of recursive call: and 1 xjuncts. [2018-04-10 13:39:59,356 INFO L477 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 0 stores, 2 select indices, 2 select index equivalence classes, 1 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 0 case distinctions, treesize of input 35 treesize of output 31 [2018-04-10 13:39:59,357 INFO L700 Elim1Store]: detected not equals via solver [2018-04-10 13:39:59,358 INFO L477 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 2 select indices, 2 select index equivalence classes, 1 disjoint index pairs (out of 1 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 13 treesize of output 6 [2018-04-10 13:39:59,358 INFO L267 ElimStorePlain]: Start of recursive call 6: End of recursive call: and 1 xjuncts. [2018-04-10 13:39:59,363 INFO L682 Elim1Store]: detected equality via solver [2018-04-10 13:39:59,363 INFO L477 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 2 select indices, 2 select index equivalence classes, 0 disjoint index pairs (out of 1 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 15 treesize of output 11 [2018-04-10 13:39:59,363 INFO L267 ElimStorePlain]: Start of recursive call 7: End of recursive call: and 1 xjuncts. [2018-04-10 13:39:59,366 INFO L267 ElimStorePlain]: Start of recursive call 5: 2 dim-1 vars, End of recursive call: and 1 xjuncts. [2018-04-10 13:39:59,372 INFO L267 ElimStorePlain]: Start of recursive call 1: 5 dim-0 vars, 2 dim-2 vars, End of recursive call: and 1 xjuncts. [2018-04-10 13:39:59,372 INFO L202 ElimStorePlain]: Needed 7 recursive calls to eliminate 7 variables, input treesize:82, output treesize:7 [2018-04-10 13:39:59,443 INFO L134 CoverageAnalysis]: Checked inductivity of 10 backedges. 0 proven. 10 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-04-10 13:39:59,461 INFO L320 seRefinementStrategy]: Constructing automaton from 0 perfect and 2 imperfect interpolant sequences. [2018-04-10 13:39:59,461 INFO L335 seRefinementStrategy]: Number of different interpolants: perfect sequences [] imperfect sequences [24, 21] total 41 [2018-04-10 13:39:59,462 INFO L442 AbstractCegarLoop]: Interpolant automaton has 41 states [2018-04-10 13:39:59,462 INFO L132 InterpolantAutomaton]: Constructing interpolant automaton starting with 41 interpolants. [2018-04-10 13:39:59,462 INFO L133 InterpolantAutomaton]: CoverageRelationStatistics Valid=115, Invalid=1416, Unknown=33, NotChecked=76, Total=1640 [2018-04-10 13:39:59,462 INFO L87 Difference]: Start difference. First operand 212 states and 234 transitions. Second operand 41 states. [2018-04-10 13:40:02,427 WARN L148 SmtUtils]: Spent 169ms on a formula simplification that was a NOOP. DAG size: 65 [2018-04-10 13:40:06,306 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-04-10 13:40:06,306 INFO L93 Difference]: Finished difference Result 279 states and 296 transitions. [2018-04-10 13:40:06,306 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 32 states. [2018-04-10 13:40:06,306 INFO L78 Accepts]: Start accepts. Automaton has 41 states. Word has length 54 [2018-04-10 13:40:06,306 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-04-10 13:40:06,307 INFO L225 Difference]: With dead ends: 279 [2018-04-10 13:40:06,307 INFO L226 Difference]: Without dead ends: 279 [2018-04-10 13:40:06,308 INFO L567 BasicCegarLoop]: 0 DeclaredPredicates, 109 GetRequests, 39 SyntacticMatches, 4 SemanticMatches, 66 ConstructedPredicates, 1 IntricatePredicates, 0 DeprecatedPredicates, 872 ImplicationChecksByTransitivity, 24.1s TimeCoverageRelationStatistics Valid=443, Invalid=3898, Unknown=85, NotChecked=130, Total=4556 [2018-04-10 13:40:06,308 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 279 states. [2018-04-10 13:40:06,312 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 279 to 205. [2018-04-10 13:40:06,312 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 205 states. [2018-04-10 13:40:06,313 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 205 states to 205 states and 224 transitions. [2018-04-10 13:40:06,313 INFO L78 Accepts]: Start accepts. Automaton has 205 states and 224 transitions. Word has length 54 [2018-04-10 13:40:06,313 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-04-10 13:40:06,313 INFO L459 AbstractCegarLoop]: Abstraction has 205 states and 224 transitions. [2018-04-10 13:40:06,313 INFO L460 AbstractCegarLoop]: Interpolant automaton has 41 states. [2018-04-10 13:40:06,313 INFO L276 IsEmpty]: Start isEmpty. Operand 205 states and 224 transitions. [2018-04-10 13:40:06,314 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 59 [2018-04-10 13:40:06,314 INFO L347 BasicCegarLoop]: Found error trace [2018-04-10 13:40:06,314 INFO L355 BasicCegarLoop]: trace histogram [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] [2018-04-10 13:40:06,314 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]=== [2018-04-10 13:40:06,315 INFO L82 PathProgramCache]: Analyzing trace with hash -298162330, now seen corresponding path program 1 times [2018-04-10 13:40:06,315 INFO L213 ckRefinementStrategy]: Switched to mode SMTINTERPOL_TREE_INTERPOLANTS [2018-04-10 13:40:06,315 INFO L68 tionRefinementEngine]: Using refinement strategy CamelRefinementStrategy [2018-04-10 13:40:06,315 INFO L119 rtionOrderModulation]: Craig nested/tree interpolation forces the following order [2018-04-10 13:40:06,315 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-04-10 13:40:06,316 INFO L119 rtionOrderModulation]: Craig nested/tree interpolation forces the following order [2018-04-10 13:40:06,327 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-04-10 13:40:06,328 WARN L137 erpolLogProxyWrapper]: Using partial proofs (cut at CNF-level). Set option :produce-proofs to true to get complete proofs. [2018-04-10 13:40:06,350 INFO L134 CoverageAnalysis]: Checked inductivity of 18 backedges. 0 proven. 2 refuted. 0 times theorem prover too weak. 16 trivial. 0 not checked. [2018-04-10 13:40:06,350 INFO L308 seRefinementStrategy]: The current sequences of interpolants are not accepted, trying to find more. [2018-04-10 13:40:06,350 INFO L213 ckRefinementStrategy]: Switched to mode Z3_FP No working directory specified, using /home/ultimate/work/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 [2018-04-10 13:40:06,358 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-04-10 13:40:06,391 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-04-10 13:40:06,393 INFO L270 TraceCheckSpWp]: Computing forward predicates... [2018-04-10 13:40:06,414 INFO L134 CoverageAnalysis]: Checked inductivity of 18 backedges. 0 proven. 2 refuted. 0 times theorem prover too weak. 16 trivial. 0 not checked. [2018-04-10 13:40:06,443 INFO L320 seRefinementStrategy]: Constructing automaton from 0 perfect and 2 imperfect interpolant sequences. [2018-04-10 13:40:06,443 INFO L335 seRefinementStrategy]: Number of different interpolants: perfect sequences [] imperfect sequences [4, 4] total 5 [2018-04-10 13:40:06,443 INFO L442 AbstractCegarLoop]: Interpolant automaton has 5 states [2018-04-10 13:40:06,443 INFO L132 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2018-04-10 13:40:06,443 INFO L133 InterpolantAutomaton]: CoverageRelationStatistics Valid=10, Invalid=10, Unknown=0, NotChecked=0, Total=20 [2018-04-10 13:40:06,444 INFO L87 Difference]: Start difference. First operand 205 states and 224 transitions. Second operand 5 states. [2018-04-10 13:40:06,469 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-04-10 13:40:06,469 INFO L93 Difference]: Finished difference Result 240 states and 265 transitions. [2018-04-10 13:40:06,470 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2018-04-10 13:40:06,470 INFO L78 Accepts]: Start accepts. Automaton has 5 states. Word has length 58 [2018-04-10 13:40:06,470 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-04-10 13:40:06,471 INFO L225 Difference]: With dead ends: 240 [2018-04-10 13:40:06,471 INFO L226 Difference]: Without dead ends: 240 [2018-04-10 13:40:06,471 INFO L567 BasicCegarLoop]: 0 DeclaredPredicates, 61 GetRequests, 58 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=10, Invalid=10, Unknown=0, NotChecked=0, Total=20 [2018-04-10 13:40:06,471 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 240 states. [2018-04-10 13:40:06,474 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 240 to 221. [2018-04-10 13:40:06,475 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 221 states. [2018-04-10 13:40:06,475 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 221 states to 221 states and 246 transitions. [2018-04-10 13:40:06,476 INFO L78 Accepts]: Start accepts. Automaton has 221 states and 246 transitions. Word has length 58 [2018-04-10 13:40:06,476 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-04-10 13:40:06,476 INFO L459 AbstractCegarLoop]: Abstraction has 221 states and 246 transitions. [2018-04-10 13:40:06,476 INFO L460 AbstractCegarLoop]: Interpolant automaton has 5 states. [2018-04-10 13:40:06,476 INFO L276 IsEmpty]: Start isEmpty. Operand 221 states and 246 transitions. [2018-04-10 13:40:06,477 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 65 [2018-04-10 13:40:06,477 INFO L347 BasicCegarLoop]: Found error trace [2018-04-10 13:40:06,477 INFO L355 BasicCegarLoop]: trace histogram [3, 3, 3, 3, 3, 3, 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] [2018-04-10 13:40:06,477 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]=== [2018-04-10 13:40:06,477 INFO L82 PathProgramCache]: Analyzing trace with hash -1910577447, now seen corresponding path program 1 times [2018-04-10 13:40:06,477 INFO L213 ckRefinementStrategy]: Switched to mode SMTINTERPOL_TREE_INTERPOLANTS [2018-04-10 13:40:06,478 INFO L68 tionRefinementEngine]: Using refinement strategy CamelRefinementStrategy [2018-04-10 13:40:06,478 INFO L119 rtionOrderModulation]: Craig nested/tree interpolation forces the following order [2018-04-10 13:40:06,478 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-04-10 13:40:06,478 INFO L119 rtionOrderModulation]: Craig nested/tree interpolation forces the following order [2018-04-10 13:40:06,489 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-04-10 13:40:06,489 WARN L137 erpolLogProxyWrapper]: Using partial proofs (cut at CNF-level). Set option :produce-proofs to true to get complete proofs. [2018-04-10 13:40:06,505 INFO L134 CoverageAnalysis]: Checked inductivity of 33 backedges. 24 proven. 0 refuted. 0 times theorem prover too weak. 9 trivial. 0 not checked. [2018-04-10 13:40:06,505 INFO L320 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2018-04-10 13:40:06,505 INFO L335 seRefinementStrategy]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2018-04-10 13:40:06,506 INFO L442 AbstractCegarLoop]: Interpolant automaton has 3 states [2018-04-10 13:40:06,506 INFO L132 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2018-04-10 13:40:06,506 INFO L133 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2018-04-10 13:40:06,506 INFO L87 Difference]: Start difference. First operand 221 states and 246 transitions. Second operand 3 states. [2018-04-10 13:40:06,512 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-04-10 13:40:06,512 INFO L93 Difference]: Finished difference Result 223 states and 248 transitions. [2018-04-10 13:40:06,512 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2018-04-10 13:40:06,512 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 64 [2018-04-10 13:40:06,512 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-04-10 13:40:06,513 INFO L225 Difference]: With dead ends: 223 [2018-04-10 13:40:06,513 INFO L226 Difference]: Without dead ends: 223 [2018-04-10 13:40:06,513 INFO L567 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 [2018-04-10 13:40:06,513 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 223 states. [2018-04-10 13:40:06,516 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 223 to 223. [2018-04-10 13:40:06,517 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 223 states. [2018-04-10 13:40:06,517 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 223 states to 223 states and 248 transitions. [2018-04-10 13:40:06,517 INFO L78 Accepts]: Start accepts. Automaton has 223 states and 248 transitions. Word has length 64 [2018-04-10 13:40:06,518 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-04-10 13:40:06,518 INFO L459 AbstractCegarLoop]: Abstraction has 223 states and 248 transitions. [2018-04-10 13:40:06,518 INFO L460 AbstractCegarLoop]: Interpolant automaton has 3 states. [2018-04-10 13:40:06,518 INFO L276 IsEmpty]: Start isEmpty. Operand 223 states and 248 transitions. [2018-04-10 13:40:06,518 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 67 [2018-04-10 13:40:06,518 INFO L347 BasicCegarLoop]: Found error trace [2018-04-10 13:40:06,518 INFO L355 BasicCegarLoop]: trace histogram [3, 3, 3, 3, 3, 3, 3, 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] [2018-04-10 13:40:06,519 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]=== [2018-04-10 13:40:06,519 INFO L82 PathProgramCache]: Analyzing trace with hash -1942436994, now seen corresponding path program 1 times [2018-04-10 13:40:06,519 INFO L213 ckRefinementStrategy]: Switched to mode SMTINTERPOL_TREE_INTERPOLANTS [2018-04-10 13:40:06,519 INFO L68 tionRefinementEngine]: Using refinement strategy CamelRefinementStrategy [2018-04-10 13:40:06,520 INFO L119 rtionOrderModulation]: Craig nested/tree interpolation forces the following order [2018-04-10 13:40:06,520 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-04-10 13:40:06,520 INFO L119 rtionOrderModulation]: Craig nested/tree interpolation forces the following order [2018-04-10 13:40:06,531 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-04-10 13:40:06,532 WARN L137 erpolLogProxyWrapper]: Using partial proofs (cut at CNF-level). Set option :produce-proofs to true to get complete proofs. [2018-04-10 13:40:06,707 INFO L134 CoverageAnalysis]: Checked inductivity of 35 backedges. 27 proven. 7 refuted. 0 times theorem prover too weak. 1 trivial. 0 not checked. [2018-04-10 13:40:06,707 INFO L308 seRefinementStrategy]: The current sequences of interpolants are not accepted, trying to find more. [2018-04-10 13:40:06,707 INFO L213 ckRefinementStrategy]: Switched to mode Z3_FP No working directory specified, using /home/ultimate/work/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 [2018-04-10 13:40:06,716 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-04-10 13:40:06,755 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-04-10 13:40:06,763 INFO L270 TraceCheckSpWp]: Computing forward predicates... [2018-04-10 13:40:06,873 INFO L700 Elim1Store]: detected not equals via solver [2018-04-10 13:40:06,875 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 [2018-04-10 13:40:06,875 INFO L267 ElimStorePlain]: Start of recursive call 2: End of recursive call: and 1 xjuncts. [2018-04-10 13:40:06,884 INFO L700 Elim1Store]: detected not equals via solver [2018-04-10 13:40:06,885 INFO L700 Elim1Store]: detected not equals via solver [2018-04-10 13:40:06,886 INFO L477 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 2 select indices, 2 select index equivalence classes, 2 disjoint index pairs (out of 1 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 11 treesize of output 4 [2018-04-10 13:40:06,886 INFO L267 ElimStorePlain]: Start of recursive call 3: End of recursive call: and 1 xjuncts. [2018-04-10 13:40:06,898 INFO L267 ElimStorePlain]: Start of recursive call 1: 2 dim-1 vars, End of recursive call: and 1 xjuncts. [2018-04-10 13:40:06,898 INFO L202 ElimStorePlain]: Needed 3 recursive calls to eliminate 2 variables, input treesize:25, output treesize:18 [2018-04-10 13:40:06,957 INFO L134 CoverageAnalysis]: Checked inductivity of 35 backedges. 27 proven. 7 refuted. 0 times theorem prover too weak. 1 trivial. 0 not checked. [2018-04-10 13:40:06,977 INFO L320 seRefinementStrategy]: Constructing automaton from 0 perfect and 2 imperfect interpolant sequences. [2018-04-10 13:40:06,977 INFO L335 seRefinementStrategy]: Number of different interpolants: perfect sequences [] imperfect sequences [11, 12] total 22 [2018-04-10 13:40:06,978 INFO L442 AbstractCegarLoop]: Interpolant automaton has 23 states [2018-04-10 13:40:06,978 INFO L132 InterpolantAutomaton]: Constructing interpolant automaton starting with 23 interpolants. [2018-04-10 13:40:06,978 INFO L133 InterpolantAutomaton]: CoverageRelationStatistics Valid=68, Invalid=438, Unknown=0, NotChecked=0, Total=506 [2018-04-10 13:40:06,978 INFO L87 Difference]: Start difference. First operand 223 states and 248 transitions. Second operand 23 states. [2018-04-10 13:40:07,445 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-04-10 13:40:07,445 INFO L93 Difference]: Finished difference Result 268 states and 288 transitions. [2018-04-10 13:40:07,445 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 11 states. [2018-04-10 13:40:07,445 INFO L78 Accepts]: Start accepts. Automaton has 23 states. Word has length 66 [2018-04-10 13:40:07,445 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-04-10 13:40:07,446 INFO L225 Difference]: With dead ends: 268 [2018-04-10 13:40:07,446 INFO L226 Difference]: Without dead ends: 268 [2018-04-10 13:40:07,446 INFO L567 BasicCegarLoop]: 0 DeclaredPredicates, 85 GetRequests, 58 SyntacticMatches, 0 SemanticMatches, 27 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 186 ImplicationChecksByTransitivity, 0.3s TimeCoverageRelationStatistics Valid=135, Invalid=677, Unknown=0, NotChecked=0, Total=812 [2018-04-10 13:40:07,447 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 268 states. [2018-04-10 13:40:07,449 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 268 to 250. [2018-04-10 13:40:07,449 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 250 states. [2018-04-10 13:40:07,449 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 250 states to 250 states and 276 transitions. [2018-04-10 13:40:07,450 INFO L78 Accepts]: Start accepts. Automaton has 250 states and 276 transitions. Word has length 66 [2018-04-10 13:40:07,450 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-04-10 13:40:07,450 INFO L459 AbstractCegarLoop]: Abstraction has 250 states and 276 transitions. [2018-04-10 13:40:07,450 INFO L460 AbstractCegarLoop]: Interpolant automaton has 23 states. [2018-04-10 13:40:07,450 INFO L276 IsEmpty]: Start isEmpty. Operand 250 states and 276 transitions. [2018-04-10 13:40:07,450 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 67 [2018-04-10 13:40:07,450 INFO L347 BasicCegarLoop]: Found error trace [2018-04-10 13:40:07,450 INFO L355 BasicCegarLoop]: trace histogram [3, 3, 3, 3, 3, 3, 3, 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] [2018-04-10 13:40:07,450 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]=== [2018-04-10 13:40:07,450 INFO L82 PathProgramCache]: Analyzing trace with hash 640456924, now seen corresponding path program 1 times [2018-04-10 13:40:07,451 INFO L213 ckRefinementStrategy]: Switched to mode SMTINTERPOL_TREE_INTERPOLANTS [2018-04-10 13:40:07,451 INFO L68 tionRefinementEngine]: Using refinement strategy CamelRefinementStrategy [2018-04-10 13:40:07,451 INFO L119 rtionOrderModulation]: Craig nested/tree interpolation forces the following order [2018-04-10 13:40:07,451 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-04-10 13:40:07,451 INFO L119 rtionOrderModulation]: Craig nested/tree interpolation forces the following order [2018-04-10 13:40:07,462 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-04-10 13:40:07,462 WARN L137 erpolLogProxyWrapper]: Using partial proofs (cut at CNF-level). Set option :produce-proofs to true to get complete proofs. [2018-04-10 13:40:07,935 INFO L134 CoverageAnalysis]: Checked inductivity of 36 backedges. 20 proven. 16 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-04-10 13:40:07,935 INFO L308 seRefinementStrategy]: The current sequences of interpolants are not accepted, trying to find more. [2018-04-10 13:40:07,936 INFO L213 ckRefinementStrategy]: Switched to mode Z3_FP No working directory specified, using /home/ultimate/work/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 [2018-04-10 13:40:07,941 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-04-10 13:40:07,964 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-04-10 13:40:07,967 INFO L270 TraceCheckSpWp]: Computing forward predicates... [2018-04-10 13:40:07,984 INFO L477 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 12 treesize of output 11 [2018-04-10 13:40:07,984 INFO L267 ElimStorePlain]: Start of recursive call 2: End of recursive call: and 1 xjuncts. [2018-04-10 13:40:07,986 INFO L267 ElimStorePlain]: Start of recursive call 1: 1 dim-1 vars, End of recursive call: and 1 xjuncts. [2018-04-10 13:40:07,986 INFO L202 ElimStorePlain]: Needed 2 recursive calls to eliminate 1 variables, input treesize:12, output treesize:11 [2018-04-10 13:40:08,102 INFO L477 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 11 treesize of output 8 [2018-04-10 13:40:08,104 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 [2018-04-10 13:40:08,104 INFO L267 ElimStorePlain]: Start of recursive call 3: End of recursive call: and 1 xjuncts. [2018-04-10 13:40:08,105 INFO L267 ElimStorePlain]: Start of recursive call 2: 1 dim-1 vars, End of recursive call: and 1 xjuncts. [2018-04-10 13:40:08,110 INFO L267 ElimStorePlain]: Start of recursive call 1: 1 dim-2 vars, End of recursive call: and 1 xjuncts. [2018-04-10 13:40:08,110 INFO L202 ElimStorePlain]: Needed 3 recursive calls to eliminate 1 variables, input treesize:27, output treesize:23 [2018-04-10 13:40:08,135 INFO L477 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 21 treesize of output 16 [2018-04-10 13:40:08,137 INFO L700 Elim1Store]: detected not equals via solver [2018-04-10 13:40:08,137 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 [2018-04-10 13:40:08,137 INFO L267 ElimStorePlain]: Start of recursive call 3: End of recursive call: and 1 xjuncts. [2018-04-10 13:40:08,152 INFO L267 ElimStorePlain]: Start of recursive call 2: 1 dim-1 vars, End of recursive call: and 1 xjuncts. [2018-04-10 13:40:08,157 INFO L267 ElimStorePlain]: Start of recursive call 1: 1 dim-2 vars, End of recursive call: and 1 xjuncts. [2018-04-10 13:40:08,157 INFO L202 ElimStorePlain]: Needed 3 recursive calls to eliminate 1 variables, input treesize:30, output treesize:26 [2018-04-10 13:40:08,193 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 [2018-04-10 13:40:08,195 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 [2018-04-10 13:40:08,195 INFO L267 ElimStorePlain]: Start of recursive call 3: End of recursive call: and 1 xjuncts. [2018-04-10 13:40:08,215 INFO L700 Elim1Store]: detected not equals via solver [2018-04-10 13:40:08,217 INFO L700 Elim1Store]: detected not equals via solver [2018-04-10 13:40:08,227 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 [2018-04-10 13:40:08,228 INFO L267 ElimStorePlain]: Start of recursive call 4: End of recursive call: and 4 xjuncts. [2018-04-10 13:40:08,260 INFO L267 ElimStorePlain]: Start of recursive call 2: 2 dim-1 vars, End of recursive call: and 3 xjuncts. [2018-04-10 13:40:08,281 INFO L267 ElimStorePlain]: Start of recursive call 1: 1 dim-2 vars, End of recursive call: and 3 xjuncts. [2018-04-10 13:40:08,281 INFO L202 ElimStorePlain]: Needed 4 recursive calls to eliminate 1 variables, input treesize:39, output treesize:108 [2018-04-10 13:40:08,337 INFO L700 Elim1Store]: detected not equals via solver [2018-04-10 13:40:08,338 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 [2018-04-10 13:40:08,339 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 [2018-04-10 13:40:08,340 INFO L267 ElimStorePlain]: Start of recursive call 3: End of recursive call: and 1 xjuncts. [2018-04-10 13:40:08,345 INFO L267 ElimStorePlain]: Start of recursive call 2: 1 dim-1 vars, End of recursive call: and 1 xjuncts. [2018-04-10 13:40:08,379 INFO L477 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 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 [2018-04-10 13:40:08,380 INFO L700 Elim1Store]: detected not equals via solver [2018-04-10 13:40:08,381 INFO L700 Elim1Store]: detected not equals via solver [2018-04-10 13:40:08,381 INFO L700 Elim1Store]: detected not equals via solver [2018-04-10 13:40:08,382 INFO L700 Elim1Store]: detected not equals via solver [2018-04-10 13:40:08,382 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 [2018-04-10 13:40:08,382 INFO L267 ElimStorePlain]: Start of recursive call 5: End of recursive call: and 1 xjuncts. [2018-04-10 13:40:08,390 INFO L267 ElimStorePlain]: Start of recursive call 4: 1 dim-1 vars, End of recursive call: and 1 xjuncts. [2018-04-10 13:40:08,422 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 [2018-04-10 13:40:08,424 INFO L700 Elim1Store]: detected not equals via solver [2018-04-10 13:40:08,425 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 [2018-04-10 13:40:08,425 INFO L267 ElimStorePlain]: Start of recursive call 7: End of recursive call: and 1 xjuncts. [2018-04-10 13:40:08,454 INFO L700 Elim1Store]: detected not equals via solver [2018-04-10 13:40:08,455 INFO L700 Elim1Store]: detected not equals via solver [2018-04-10 13:40:08,456 INFO L700 Elim1Store]: detected not equals via solver [2018-04-10 13:40:08,461 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 [2018-04-10 13:40:08,461 INFO L267 ElimStorePlain]: Start of recursive call 8: End of recursive call: and 2 xjuncts. [2018-04-10 13:40:08,493 INFO L267 ElimStorePlain]: Start of recursive call 6: 2 dim-1 vars, End of recursive call: and 2 xjuncts. [2018-04-10 13:40:08,524 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. [2018-04-10 13:40:08,525 INFO L202 ElimStorePlain]: Needed 8 recursive calls to eliminate 4 variables, input treesize:144, output treesize:168 [2018-04-10 13:40:08,589 WARN L307 Elim1Store]: Array PQE input equivalent to false [2018-04-10 13:40:08,590 INFO L267 ElimStorePlain]: Start of recursive call 2: End of recursive call: and 1 xjuncts. [2018-04-10 13:40:08,614 INFO L700 Elim1Store]: detected not equals via solver [2018-04-10 13:40:08,615 INFO L700 Elim1Store]: detected not equals via solver [2018-04-10 13:40:08,615 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 15 treesize of output 8 [2018-04-10 13:40:08,615 INFO L267 ElimStorePlain]: Start of recursive call 3: End of recursive call: and 1 xjuncts. [2018-04-10 13:40:08,625 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. [2018-04-10 13:40:08,625 INFO L202 ElimStorePlain]: Needed 3 recursive calls to eliminate 5 variables, input treesize:188, output treesize:60 [2018-04-10 13:40:08,724 INFO L134 CoverageAnalysis]: Checked inductivity of 36 backedges. 18 proven. 18 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-04-10 13:40:08,742 INFO L320 seRefinementStrategy]: Constructing automaton from 0 perfect and 2 imperfect interpolant sequences. [2018-04-10 13:40:08,742 INFO L335 seRefinementStrategy]: Number of different interpolants: perfect sequences [] imperfect sequences [19, 19] total 33 [2018-04-10 13:40:08,743 INFO L442 AbstractCegarLoop]: Interpolant automaton has 33 states [2018-04-10 13:40:08,743 INFO L132 InterpolantAutomaton]: Constructing interpolant automaton starting with 33 interpolants. [2018-04-10 13:40:08,743 INFO L133 InterpolantAutomaton]: CoverageRelationStatistics Valid=99, Invalid=957, Unknown=0, NotChecked=0, Total=1056 [2018-04-10 13:40:08,743 INFO L87 Difference]: Start difference. First operand 250 states and 276 transitions. Second operand 33 states. [2018-04-10 13:40:09,728 WARN L151 SmtUtils]: Spent 129ms on a formula simplification. DAG size of input: 96 DAG size of output 87 [2018-04-10 13:40:11,029 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-04-10 13:40:11,029 INFO L93 Difference]: Finished difference Result 294 states and 317 transitions. [2018-04-10 13:40:11,030 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 36 states. [2018-04-10 13:40:11,030 INFO L78 Accepts]: Start accepts. Automaton has 33 states. Word has length 66 [2018-04-10 13:40:11,030 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-04-10 13:40:11,031 INFO L225 Difference]: With dead ends: 294 [2018-04-10 13:40:11,031 INFO L226 Difference]: Without dead ends: 275 [2018-04-10 13:40:11,032 INFO L567 BasicCegarLoop]: 0 DeclaredPredicates, 119 GetRequests, 51 SyntacticMatches, 4 SemanticMatches, 64 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1031 ImplicationChecksByTransitivity, 2.1s TimeCoverageRelationStatistics Valid=519, Invalid=3771, Unknown=0, NotChecked=0, Total=4290 [2018-04-10 13:40:11,032 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 275 states. [2018-04-10 13:40:11,035 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 275 to 221. [2018-04-10 13:40:11,035 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 221 states. [2018-04-10 13:40:11,035 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 221 states to 221 states and 240 transitions. [2018-04-10 13:40:11,035 INFO L78 Accepts]: Start accepts. Automaton has 221 states and 240 transitions. Word has length 66 [2018-04-10 13:40:11,035 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-04-10 13:40:11,035 INFO L459 AbstractCegarLoop]: Abstraction has 221 states and 240 transitions. [2018-04-10 13:40:11,035 INFO L460 AbstractCegarLoop]: Interpolant automaton has 33 states. [2018-04-10 13:40:11,035 INFO L276 IsEmpty]: Start isEmpty. Operand 221 states and 240 transitions. [2018-04-10 13:40:11,036 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 69 [2018-04-10 13:40:11,036 INFO L347 BasicCegarLoop]: Found error trace [2018-04-10 13:40:11,036 INFO L355 BasicCegarLoop]: trace histogram [3, 3, 3, 3, 3, 3, 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] [2018-04-10 13:40:11,036 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]=== [2018-04-10 13:40:11,036 INFO L82 PathProgramCache]: Analyzing trace with hash -1123343448, now seen corresponding path program 1 times [2018-04-10 13:40:11,036 INFO L213 ckRefinementStrategy]: Switched to mode SMTINTERPOL_TREE_INTERPOLANTS [2018-04-10 13:40:11,036 INFO L68 tionRefinementEngine]: Using refinement strategy CamelRefinementStrategy [2018-04-10 13:40:11,037 INFO L119 rtionOrderModulation]: Craig nested/tree interpolation forces the following order [2018-04-10 13:40:11,037 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-04-10 13:40:11,037 INFO L119 rtionOrderModulation]: Craig nested/tree interpolation forces the following order [2018-04-10 13:40:11,051 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-04-10 13:40:11,051 WARN L137 erpolLogProxyWrapper]: Using partial proofs (cut at CNF-level). Set option :produce-proofs to true to get complete proofs. [2018-04-10 13:40:11,382 INFO L134 CoverageAnalysis]: Checked inductivity of 29 backedges. 0 proven. 27 refuted. 0 times theorem prover too weak. 2 trivial. 0 not checked. [2018-04-10 13:40:11,382 INFO L308 seRefinementStrategy]: The current sequences of interpolants are not accepted, trying to find more. [2018-04-10 13:40:11,382 INFO L213 ckRefinementStrategy]: Switched to mode Z3_FP No working directory specified, using /home/ultimate/work/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 [2018-04-10 13:40:11,392 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-04-10 13:40:11,436 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-04-10 13:40:11,439 INFO L270 TraceCheckSpWp]: Computing forward predicates... [2018-04-10 13:40:11,525 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 [2018-04-10 13:40:11,536 INFO L700 Elim1Store]: detected not equals via solver [2018-04-10 13:40:11,538 INFO L477 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 1 select indices, 1 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 14 treesize of output 17 [2018-04-10 13:40:11,538 INFO L267 ElimStorePlain]: Start of recursive call 2: End of recursive call: and 1 xjuncts. [2018-04-10 13:40:11,548 INFO L700 Elim1Store]: detected not equals via solver [2018-04-10 13:40:11,549 INFO L700 Elim1Store]: detected not equals via solver [2018-04-10 13:40:11,549 INFO L477 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 2 select indices, 2 select index equivalence classes, 2 disjoint index pairs (out of 1 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 11 treesize of output 4 [2018-04-10 13:40:11,549 INFO L267 ElimStorePlain]: Start of recursive call 3: End of recursive call: and 1 xjuncts. [2018-04-10 13:40:11,557 INFO L267 ElimStorePlain]: Start of recursive call 1: 1 dim-0 vars, 2 dim-1 vars, End of recursive call: 1 dim-0 vars, and 1 xjuncts. [2018-04-10 13:40:11,558 INFO L202 ElimStorePlain]: Needed 3 recursive calls to eliminate 3 variables, input treesize:27, output treesize:20 [2018-04-10 13:40:11,625 WARN L1033 $PredicateComparison]: unable to prove that (exists ((__U_MULTI_flength_test___false_valid_memtrack_i__append_~node~0.base Int)) (= |c_#length| (store |c_old(#length)| __U_MULTI_flength_test___false_valid_memtrack_i__append_~node~0.base 9))) is different from true [2018-04-10 13:40:11,643 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 [2018-04-10 13:40:11,644 INFO L267 ElimStorePlain]: Start of recursive call 2: End of recursive call: and 2 xjuncts. [2018-04-10 13:40:11,660 INFO L267 ElimStorePlain]: Start of recursive call 1: 2 dim-0 vars, 1 dim-1 vars, End of recursive call: 2 dim-0 vars, and 1 xjuncts. [2018-04-10 13:40:11,661 INFO L202 ElimStorePlain]: Needed 2 recursive calls to eliminate 3 variables, input treesize:26, output treesize:25 [2018-04-10 13:40:11,758 INFO L477 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 2 select indices, 2 select index equivalence classes, 1 disjoint index pairs (out of 1 index pairs), introduced 1 new quantified variables, introduced 2 case distinctions, treesize of input 19 treesize of output 29 [2018-04-10 13:40:11,759 INFO L267 ElimStorePlain]: Start of recursive call 2: End of recursive call: and 2 xjuncts. [2018-04-10 13:40:11,771 INFO L267 ElimStorePlain]: Start of recursive call 1: 1 dim-0 vars, 1 dim-1 vars, End of recursive call: 1 dim-0 vars, and 1 xjuncts. [2018-04-10 13:40:11,771 INFO L202 ElimStorePlain]: Needed 2 recursive calls to eliminate 2 variables, input treesize:26, output treesize:25 [2018-04-10 13:40:11,847 INFO L134 CoverageAnalysis]: Checked inductivity of 29 backedges. 0 proven. 11 refuted. 0 times theorem prover too weak. 2 trivial. 16 not checked. [2018-04-10 13:40:11,866 INFO L320 seRefinementStrategy]: Constructing automaton from 0 perfect and 2 imperfect interpolant sequences. [2018-04-10 13:40:11,866 INFO L335 seRefinementStrategy]: Number of different interpolants: perfect sequences [] imperfect sequences [15, 16] total 29 [2018-04-10 13:40:11,867 INFO L442 AbstractCegarLoop]: Interpolant automaton has 30 states [2018-04-10 13:40:11,867 INFO L132 InterpolantAutomaton]: Constructing interpolant automaton starting with 30 interpolants. [2018-04-10 13:40:11,867 INFO L133 InterpolantAutomaton]: CoverageRelationStatistics Valid=88, Invalid=674, Unknown=2, NotChecked=106, Total=870 [2018-04-10 13:40:11,867 INFO L87 Difference]: Start difference. First operand 221 states and 240 transitions. Second operand 30 states. [2018-04-10 13:40:12,790 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-04-10 13:40:12,790 INFO L93 Difference]: Finished difference Result 243 states and 258 transitions. [2018-04-10 13:40:12,790 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 15 states. [2018-04-10 13:40:12,790 INFO L78 Accepts]: Start accepts. Automaton has 30 states. Word has length 68 [2018-04-10 13:40:12,791 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-04-10 13:40:12,792 INFO L225 Difference]: With dead ends: 243 [2018-04-10 13:40:12,792 INFO L226 Difference]: Without dead ends: 243 [2018-04-10 13:40:12,792 INFO L567 BasicCegarLoop]: 0 DeclaredPredicates, 100 GetRequests, 54 SyntacticMatches, 8 SemanticMatches, 38 ConstructedPredicates, 2 IntricatePredicates, 0 DeprecatedPredicates, 365 ImplicationChecksByTransitivity, 0.8s TimeCoverageRelationStatistics Valid=188, Invalid=1224, Unknown=2, NotChecked=146, Total=1560 [2018-04-10 13:40:12,793 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 243 states. [2018-04-10 13:40:12,795 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 243 to 204. [2018-04-10 13:40:12,796 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 204 states. [2018-04-10 13:40:12,796 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 204 states to 204 states and 219 transitions. [2018-04-10 13:40:12,796 INFO L78 Accepts]: Start accepts. Automaton has 204 states and 219 transitions. Word has length 68 [2018-04-10 13:40:12,797 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-04-10 13:40:12,797 INFO L459 AbstractCegarLoop]: Abstraction has 204 states and 219 transitions. [2018-04-10 13:40:12,797 INFO L460 AbstractCegarLoop]: Interpolant automaton has 30 states. [2018-04-10 13:40:12,797 INFO L276 IsEmpty]: Start isEmpty. Operand 204 states and 219 transitions. [2018-04-10 13:40:12,797 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 73 [2018-04-10 13:40:12,797 INFO L347 BasicCegarLoop]: Found error trace [2018-04-10 13:40:12,797 INFO L355 BasicCegarLoop]: trace histogram [3, 3, 3, 3, 3, 3, 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] [2018-04-10 13:40:12,797 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]=== [2018-04-10 13:40:12,797 INFO L82 PathProgramCache]: Analyzing trace with hash -1088555564, now seen corresponding path program 1 times [2018-04-10 13:40:12,797 INFO L213 ckRefinementStrategy]: Switched to mode SMTINTERPOL_TREE_INTERPOLANTS [2018-04-10 13:40:12,798 INFO L68 tionRefinementEngine]: Using refinement strategy CamelRefinementStrategy [2018-04-10 13:40:12,798 INFO L119 rtionOrderModulation]: Craig nested/tree interpolation forces the following order [2018-04-10 13:40:12,798 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-04-10 13:40:12,798 INFO L119 rtionOrderModulation]: Craig nested/tree interpolation forces the following order [2018-04-10 13:40:12,812 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-04-10 13:40:12,813 WARN L137 erpolLogProxyWrapper]: Using partial proofs (cut at CNF-level). Set option :produce-proofs to true to get complete proofs. [2018-04-10 13:40:13,444 INFO L134 CoverageAnalysis]: Checked inductivity of 35 backedges. 3 proven. 31 refuted. 0 times theorem prover too weak. 1 trivial. 0 not checked. [2018-04-10 13:40:13,444 INFO L308 seRefinementStrategy]: The current sequences of interpolants are not accepted, trying to find more. [2018-04-10 13:40:13,444 INFO L213 ckRefinementStrategy]: Switched to mode Z3_FP No working directory specified, using /home/ultimate/work/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 [2018-04-10 13:40:13,450 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-04-10 13:40:13,476 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-04-10 13:40:13,478 INFO L270 TraceCheckSpWp]: Computing forward predicates... [2018-04-10 13:40:13,610 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:408) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.AbstractCegarLoop.iterateInternal(AbstractCegarLoop.java:417) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.AbstractCegarLoop.iterate(AbstractCegarLoop.java:363) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionStarter.iterate(TraceAbstractionStarter.java:304) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionStarter.runCegarLoops(TraceAbstractionStarter.java:150) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionStarter.(TraceAbstractionStarter.java:118) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver.finish(TraceAbstractionObserver.java:119) at de.uni_freiburg.informatik.ultimate.core.coreplugin.PluginConnector.runObserver(PluginConnector.java:168) at de.uni_freiburg.informatik.ultimate.core.coreplugin.PluginConnector.runTool(PluginConnector.java:151) at de.uni_freiburg.informatik.ultimate.core.coreplugin.PluginConnector.run(PluginConnector.java:128) at de.uni_freiburg.informatik.ultimate.core.coreplugin.ToolchainWalker.executePluginConnector(ToolchainWalker.java:232) at de.uni_freiburg.informatik.ultimate.core.coreplugin.ToolchainWalker.processPlugin(ToolchainWalker.java:226) at de.uni_freiburg.informatik.ultimate.core.coreplugin.ToolchainWalker.walkUnprotected(ToolchainWalker.java:142) at de.uni_freiburg.informatik.ultimate.core.coreplugin.ToolchainWalker.walk(ToolchainWalker.java:104) at de.uni_freiburg.informatik.ultimate.core.coreplugin.ToolchainManager$Toolchain.processToolchain(ToolchainManager.java:324) at de.uni_freiburg.informatik.ultimate.core.coreplugin.toolchain.DefaultToolchainJob.runToolchainDefault(DefaultToolchainJob.java:221) at de.uni_freiburg.informatik.ultimate.core.coreplugin.toolchain.BasicToolchainJob.run(BasicToolchainJob.java:134) at org.eclipse.core.internal.jobs.Worker.run(Worker.java:55) [2018-04-10 13:40:13,613 INFO L168 Benchmark]: Toolchain (without parser) took 76468.63 ms. Allocated memory was 403.7 MB in the beginning and 1.1 GB in the end (delta: 667.4 MB). Free memory was 338.2 MB in the beginning and 898.1 MB in the end (delta: -559.8 MB). Peak memory consumption was 107.6 MB. Max. memory is 5.3 GB. [2018-04-10 13:40:13,614 INFO L168 Benchmark]: CDTParser took 0.18 ms. Allocated memory is still 403.7 MB. Free memory is still 365.4 MB. There was no memory consumed. Max. memory is 5.3 GB. [2018-04-10 13:40:13,614 INFO L168 Benchmark]: CACSL2BoogieTranslator took 264.55 ms. Allocated memory is still 403.7 MB. Free memory was 338.2 MB in the beginning and 311.6 MB in the end (delta: 26.6 MB). Peak memory consumption was 26.6 MB. Max. memory is 5.3 GB. [2018-04-10 13:40:13,614 INFO L168 Benchmark]: Boogie Preprocessor took 44.38 ms. Allocated memory is still 403.7 MB. Free memory was 311.6 MB in the beginning and 309.0 MB in the end (delta: 2.6 MB). Peak memory consumption was 2.6 MB. Max. memory is 5.3 GB. [2018-04-10 13:40:13,614 INFO L168 Benchmark]: RCFGBuilder took 451.45 ms. Allocated memory was 403.7 MB in the beginning and 610.8 MB in the end (delta: 207.1 MB). Free memory was 309.0 MB in the beginning and 529.4 MB in the end (delta: -220.4 MB). Peak memory consumption was 25.2 MB. Max. memory is 5.3 GB. [2018-04-10 13:40:13,615 INFO L168 Benchmark]: TraceAbstraction took 75705.66 ms. Allocated memory was 610.8 MB in the beginning and 1.1 GB in the end (delta: 460.3 MB). Free memory was 529.4 MB in the beginning and 898.1 MB in the end (delta: -368.7 MB). Peak memory consumption was 91.6 MB. Max. memory is 5.3 GB. [2018-04-10 13:40:13,616 INFO L344 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.18 ms. Allocated memory is still 403.7 MB. Free memory is still 365.4 MB. There was no memory consumed. Max. memory is 5.3 GB. * CACSL2BoogieTranslator took 264.55 ms. Allocated memory is still 403.7 MB. Free memory was 338.2 MB in the beginning and 311.6 MB in the end (delta: 26.6 MB). Peak memory consumption was 26.6 MB. Max. memory is 5.3 GB. * Boogie Preprocessor took 44.38 ms. Allocated memory is still 403.7 MB. Free memory was 311.6 MB in the beginning and 309.0 MB in the end (delta: 2.6 MB). Peak memory consumption was 2.6 MB. Max. memory is 5.3 GB. * RCFGBuilder took 451.45 ms. Allocated memory was 403.7 MB in the beginning and 610.8 MB in the end (delta: 207.1 MB). Free memory was 309.0 MB in the beginning and 529.4 MB in the end (delta: -220.4 MB). Peak memory consumption was 25.2 MB. Max. memory is 5.3 GB. * TraceAbstraction took 75705.66 ms. Allocated memory was 610.8 MB in the beginning and 1.1 GB in the end (delta: 460.3 MB). Free memory was 529.4 MB in the beginning and 898.1 MB in the end (delta: -368.7 MB). Peak memory consumption was 91.6 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 /home/ultimate/work/ultimate/releaseScripts/default/UAutomizer-linux/../../../releaseScripts/default/UAutomizer-linux/csv/length_test03_false-valid-memtrack.i_svcomp-DerefFreeMemtrack-32bit-Automizer_Camel.epf_AutomizerC.xml/Csv-Benchmark-0-2018-04-10_13-40-13-622.csv Received shutdown request...