java -Xmx6000000000 -jar ./plugins/org.eclipse.equinox.launcher_1.3.100.v20150511-1540.jar -data ./data --generate-csv --csv-dir ../../../releaseScripts/default/UAutomizer-linux/csv -tc ../../../trunk/examples/toolchains/AutomizerC.xml -s ../../../trunk/examples/settings/ai/eq-bench/svcomp-DerefFreeMemtrack-32bit-Automizer_Fixed_noBitfields+AI_EQ_SS.epf -i ../../../trunk/examples/svcomp/array-memsafety/substring-alloca_true-valid-memsafety_true-termination.i -------------------------------------------------------------------------------- This is Ultimate 0.1.23-835382a-m [2018-04-05 16:37:45,444 INFO L170 SettingsManager]: Resetting all preferences to default values... [2018-04-05 16:37:45,451 INFO L174 SettingsManager]: Resetting UltimateCore preferences to default values [2018-04-05 16:37:45,497 INFO L177 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2018-04-05 16:37:45,497 INFO L174 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2018-04-05 16:37:45,498 INFO L174 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2018-04-05 16:37:45,499 INFO L174 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2018-04-05 16:37:45,514 INFO L174 SettingsManager]: Resetting LassoRanker preferences to default values [2018-04-05 16:37:45,516 INFO L174 SettingsManager]: Resetting Reaching Definitions preferences to default values [2018-04-05 16:37:45,517 INFO L174 SettingsManager]: Resetting SyntaxChecker preferences to default values [2018-04-05 16:37:45,523 INFO L177 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2018-04-05 16:37:45,523 INFO L174 SettingsManager]: Resetting LTL2Aut preferences to default values [2018-04-05 16:37:45,524 INFO L174 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2018-04-05 16:37:45,525 INFO L174 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2018-04-05 16:37:45,541 INFO L174 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2018-04-05 16:37:45,543 INFO L174 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2018-04-05 16:37:45,555 INFO L174 SettingsManager]: Resetting CodeCheck preferences to default values [2018-04-05 16:37:45,557 INFO L174 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2018-04-05 16:37:45,572 INFO L174 SettingsManager]: Resetting RCFGBuilder preferences to default values [2018-04-05 16:37:45,574 INFO L174 SettingsManager]: Resetting TraceAbstraction preferences to default values [2018-04-05 16:37:45,587 INFO L177 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... 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[2018-04-05 16:37:45,594 INFO L98 SettingsManager]: Beginning loading settings from /storage/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/settings/ai/eq-bench/svcomp-DerefFreeMemtrack-32bit-Automizer_Fixed_noBitfields+AI_EQ_SS.epf [2018-04-05 16:37:45,668 INFO L110 SettingsManager]: Loading preferences was successful [2018-04-05 16:37:45,669 INFO L112 SettingsManager]: Preferences different from defaults after loading the file: [2018-04-05 16:37:45,669 INFO L131 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2018-04-05 16:37:45,670 INFO L133 SettingsManager]: * ultimate.logging.details=de.uni_freiburg.informatik.ultimate.plugins.icfgtransformation=DEBUG; [2018-04-05 16:37:45,670 INFO L131 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2018-04-05 16:37:45,670 INFO L133 SettingsManager]: * to procedures, called more than once=true [2018-04-05 16:37:45,677 INFO L131 SettingsManager]: Preferences of Abstract Interpretation differ from their defaults: [2018-04-05 16:37:45,677 INFO L133 SettingsManager]: * Abstract domain for RCFG-of-the-future=VPDomain [2018-04-05 16:37:45,677 INFO L133 SettingsManager]: * Use the RCFG-of-the-future interface=true [2018-04-05 16:37:45,679 INFO L131 SettingsManager]: Preferences of LTL2Aut differ from their defaults: [2018-04-05 16:37:45,679 INFO L133 SettingsManager]: * Property to check=[] a a: x > 42 [2018-04-05 16:37:45,679 INFO L131 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2018-04-05 16:37:45,680 INFO L133 SettingsManager]: * sizeof long=4 [2018-04-05 16:37:45,680 INFO L133 SettingsManager]: * Check unreachability of error function in SV-COMP mode=false [2018-04-05 16:37:45,680 INFO L133 SettingsManager]: * Overapproximate operations on floating types=true [2018-04-05 16:37:45,680 INFO L133 SettingsManager]: * sizeof POINTER=4 [2018-04-05 16:37:45,681 INFO L133 SettingsManager]: * Check division by zero=IGNORE [2018-04-05 16:37:45,681 INFO L133 SettingsManager]: * Check for the main procedure if all allocated memory was freed=true [2018-04-05 16:37:45,681 INFO L133 SettingsManager]: * SV-COMP memtrack compatibility mode=true [2018-04-05 16:37:45,681 INFO L133 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2018-04-05 16:37:45,681 INFO L133 SettingsManager]: * sizeof long double=12 [2018-04-05 16:37:45,682 INFO L131 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2018-04-05 16:37:45,682 INFO L133 SettingsManager]: * Size of a code block=SingleStatement [2018-04-05 16:37:45,682 INFO L133 SettingsManager]: * Add additional assume for each assert=false [2018-04-05 16:37:45,683 INFO L133 SettingsManager]: * SMT solver=External_DefaultMode [2018-04-05 16:37:45,690 INFO L133 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2018-04-05 16:37:45,690 INFO L131 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2018-04-05 16:37:45,690 INFO L133 SettingsManager]: * Interpolant automaton=TWOTRACK [2018-04-05 16:37:45,690 INFO L133 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2018-04-05 16:37:45,691 INFO L133 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2018-04-05 16:37:45,691 INFO L133 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2018-04-05 16:37:45,691 INFO L133 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2018-04-05 16:37:45,691 INFO L133 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2018-04-05 16:37:45,692 INFO L131 SettingsManager]: Preferences of IcfgTransformer differ from their defaults: [2018-04-05 16:37:45,694 INFO L133 SettingsManager]: * TransformationType=HEAP_SEPARATOR [2018-04-05 16:37:45,694 INFO L131 SettingsManager]: Preferences of Boogie Printer differ from their defaults: [2018-04-05 16:37:45,695 INFO L133 SettingsManager]: * Dump path:=C:\Users\alex\AppData\Local\Temp\ [2018-04-05 16:37:45,795 INFO L81 nceAwareModelManager]: Repository-Root is: /tmp [2018-04-05 16:37:45,821 INFO L266 ainManager$Toolchain]: [Toolchain 1]: Parser(s) successfully (re)initialized [2018-04-05 16:37:45,830 INFO L222 ainManager$Toolchain]: [Toolchain 1]: Toolchain data selected. [2018-04-05 16:37:45,836 INFO L271 PluginConnector]: Initializing CDTParser... [2018-04-05 16:37:45,837 INFO L276 PluginConnector]: CDTParser initialized [2018-04-05 16:37:45,838 INFO L431 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/svcomp/array-memsafety/substring-alloca_true-valid-memsafety_true-termination.i [2018-04-05 16:37:46,376 INFO L225 CDTParser]: Created temporary CDT project at /storage/ultimate/releaseScripts/default/UAutomizer-linux/data/FLAG06d33119c [2018-04-05 16:37:46,824 INFO L287 CDTParser]: IsIndexed: true [2018-04-05 16:37:46,824 INFO L288 CDTParser]: Found 1 translation units. [2018-04-05 16:37:46,825 INFO L168 CDTParser]: Scanning substring-alloca_true-valid-memsafety_true-termination.i [2018-04-05 16:37:46,864 INFO L210 ultiparseSymbolTable]: Include resolver: [2018-04-05 16:37:46,864 INFO L215 ultiparseSymbolTable]: [2018-04-05 16:37:46,864 INFO L218 ultiparseSymbolTable]: Function table: [2018-04-05 16:37:46,864 INFO L221 ultiparseSymbolTable]: Function definition of __U_MULTI_fsubstring_alloca_true_valid_memsafety_true_termination_i__ ('') in substring-alloca_true-valid-memsafety_true-termination.i [2018-04-05 16:37:46,865 INFO L221 ultiparseSymbolTable]: Function definition of __U_MULTI_fsubstring_alloca_true_valid_memsafety_true_termination_i____bswap_32 ('__bswap_32') in substring-alloca_true-valid-memsafety_true-termination.i [2018-04-05 16:37:46,865 INFO L221 ultiparseSymbolTable]: Function definition of __U_MULTI_fsubstring_alloca_true_valid_memsafety_true_termination_i____bswap_64 ('__bswap_64') in substring-alloca_true-valid-memsafety_true-termination.i [2018-04-05 16:37:46,865 INFO L221 ultiparseSymbolTable]: Function definition of null ('main') in substring-alloca_true-valid-memsafety_true-termination.i [2018-04-05 16:37:46,865 INFO L227 ultiparseSymbolTable]: Global variable table: [2018-04-05 16:37:46,865 INFO L230 ultiparseSymbolTable]: Global variable declaration of __U_MULTI_fsubstring_alloca_true_valid_memsafety_true_termination_i____nlink_t in substring-alloca_true-valid-memsafety_true-termination.i [2018-04-05 16:37:46,865 INFO L230 ultiparseSymbolTable]: Global variable declaration of __U_MULTI_fsubstring_alloca_true_valid_memsafety_true_termination_i__register_t in substring-alloca_true-valid-memsafety_true-termination.i [2018-04-05 16:37:46,865 INFO L230 ultiparseSymbolTable]: Global variable declaration of __U_MULTI_fsubstring_alloca_true_valid_memsafety_true_termination_i__gid_t in substring-alloca_true-valid-memsafety_true-termination.i [2018-04-05 16:37:46,866 INFO L230 ultiparseSymbolTable]: Global variable declaration of __U_MULTI_fsubstring_alloca_true_valid_memsafety_true_termination_i____blkcnt64_t in substring-alloca_true-valid-memsafety_true-termination.i [2018-04-05 16:37:46,876 INFO L230 ultiparseSymbolTable]: Global variable declaration of __U_MULTI_fsubstring_alloca_true_valid_memsafety_true_termination_i__ldiv_t in substring-alloca_true-valid-memsafety_true-termination.i [2018-04-05 16:37:46,876 INFO L230 ultiparseSymbolTable]: Global variable declaration of __U_MULTI_fsubstring_alloca_true_valid_memsafety_true_termination_i____fsfilcnt64_t in substring-alloca_true-valid-memsafety_true-termination.i [2018-04-05 16:37:46,876 INFO L230 ultiparseSymbolTable]: Global variable declaration of __U_MULTI_fsubstring_alloca_true_valid_memsafety_true_termination_i____socklen_t in substring-alloca_true-valid-memsafety_true-termination.i [2018-04-05 16:37:46,877 INFO L230 ultiparseSymbolTable]: Global variable declaration of __U_MULTI_fsubstring_alloca_true_valid_memsafety_true_termination_i__int32_t in substring-alloca_true-valid-memsafety_true-termination.i [2018-04-05 16:37:46,877 INFO L230 ultiparseSymbolTable]: Global variable declaration of __U_MULTI_fsubstring_alloca_true_valid_memsafety_true_termination_i__timer_t in substring-alloca_true-valid-memsafety_true-termination.i [2018-04-05 16:37:46,877 INFO L230 ultiparseSymbolTable]: Global variable declaration of __U_MULTI_fsubstring_alloca_true_valid_memsafety_true_termination_i____ssize_t in substring-alloca_true-valid-memsafety_true-termination.i [2018-04-05 16:37:46,877 INFO L230 ultiparseSymbolTable]: Global variable declaration of __U_MULTI_fsubstring_alloca_true_valid_memsafety_true_termination_i__off_t in substring-alloca_true-valid-memsafety_true-termination.i [2018-04-05 16:37:46,877 INFO L230 ultiparseSymbolTable]: Global variable declaration of __U_MULTI_fsubstring_alloca_true_valid_memsafety_true_termination_i____int8_t in substring-alloca_true-valid-memsafety_true-termination.i [2018-04-05 16:37:46,877 INFO L230 ultiparseSymbolTable]: Global variable declaration of __U_MULTI_fsubstring_alloca_true_valid_memsafety_true_termination_i____intptr_t in substring-alloca_true-valid-memsafety_true-termination.i [2018-04-05 16:37:46,877 INFO L230 ultiparseSymbolTable]: Global variable declaration of __U_MULTI_fsubstring_alloca_true_valid_memsafety_true_termination_i____sig_atomic_t in substring-alloca_true-valid-memsafety_true-termination.i [2018-04-05 16:37:46,877 INFO L230 ultiparseSymbolTable]: Global variable declaration of __U_MULTI_fsubstring_alloca_true_valid_memsafety_true_termination_i____mode_t in substring-alloca_true-valid-memsafety_true-termination.i [2018-04-05 16:37:46,878 INFO L230 ultiparseSymbolTable]: Global variable declaration of __U_MULTI_fsubstring_alloca_true_valid_memsafety_true_termination_i__size_t in substring-alloca_true-valid-memsafety_true-termination.i [2018-04-05 16:37:46,878 INFO L230 ultiparseSymbolTable]: Global variable declaration of __U_MULTI_fsubstring_alloca_true_valid_memsafety_true_termination_i____uid_t in substring-alloca_true-valid-memsafety_true-termination.i [2018-04-05 16:37:46,878 INFO L230 ultiparseSymbolTable]: Global variable declaration of __U_MULTI_fsubstring_alloca_true_valid_memsafety_true_termination_i__pthread_once_t in substring-alloca_true-valid-memsafety_true-termination.i [2018-04-05 16:37:46,878 INFO L230 ultiparseSymbolTable]: Global variable declaration of __U_MULTI_fsubstring_alloca_true_valid_memsafety_true_termination_i____fsword_t in substring-alloca_true-valid-memsafety_true-termination.i [2018-04-05 16:37:46,878 INFO L230 ultiparseSymbolTable]: Global variable declaration of __U_MULTI_fsubstring_alloca_true_valid_memsafety_true_termination_i____uint64_t in substring-alloca_true-valid-memsafety_true-termination.i [2018-04-05 16:37:46,878 INFO L230 ultiparseSymbolTable]: Global variable declaration of __U_MULTI_fsubstring_alloca_true_valid_memsafety_true_termination_i__pid_t in substring-alloca_true-valid-memsafety_true-termination.i [2018-04-05 16:37:46,878 INFO L230 ultiparseSymbolTable]: Global variable declaration of __U_MULTI_fsubstring_alloca_true_valid_memsafety_true_termination_i__fsfilcnt_t in substring-alloca_true-valid-memsafety_true-termination.i [2018-04-05 16:37:46,878 INFO L230 ultiparseSymbolTable]: Global variable declaration of __U_MULTI_fsubstring_alloca_true_valid_memsafety_true_termination_i__uint in substring-alloca_true-valid-memsafety_true-termination.i [2018-04-05 16:37:46,879 INFO L230 ultiparseSymbolTable]: Global variable declaration of __U_MULTI_fsubstring_alloca_true_valid_memsafety_true_termination_i__id_t in substring-alloca_true-valid-memsafety_true-termination.i [2018-04-05 16:37:46,879 INFO L230 ultiparseSymbolTable]: Global variable declaration of __U_MULTI_fsubstring_alloca_true_valid_memsafety_true_termination_i__ssize_t in substring-alloca_true-valid-memsafety_true-termination.i [2018-04-05 16:37:46,879 INFO L230 ultiparseSymbolTable]: Global variable declaration of __U_MULTI_fsubstring_alloca_true_valid_memsafety_true_termination_i__nlink_t in substring-alloca_true-valid-memsafety_true-termination.i [2018-04-05 16:37:46,879 INFO L230 ultiparseSymbolTable]: Global variable declaration of __U_MULTI_fsubstring_alloca_true_valid_memsafety_true_termination_i__caddr_t in substring-alloca_true-valid-memsafety_true-termination.i [2018-04-05 16:37:46,879 INFO L230 ultiparseSymbolTable]: Global variable declaration of __U_MULTI_fsubstring_alloca_true_valid_memsafety_true_termination_i__u_short in substring-alloca_true-valid-memsafety_true-termination.i [2018-04-05 16:37:46,879 INFO L230 ultiparseSymbolTable]: Global variable declaration of __U_MULTI_fsubstring_alloca_true_valid_memsafety_true_termination_i__div_t in substring-alloca_true-valid-memsafety_true-termination.i [2018-04-05 16:37:46,879 INFO L230 ultiparseSymbolTable]: Global variable declaration of __U_MULTI_fsubstring_alloca_true_valid_memsafety_true_termination_i____suseconds_t in substring-alloca_true-valid-memsafety_true-termination.i [2018-04-05 16:37:46,880 INFO L230 ultiparseSymbolTable]: Global variable declaration of __U_MULTI_fsubstring_alloca_true_valid_memsafety_true_termination_i____int32_t in substring-alloca_true-valid-memsafety_true-termination.i [2018-04-05 16:37:46,883 INFO L230 ultiparseSymbolTable]: Global variable declaration of __U_MULTI_fsubstring_alloca_true_valid_memsafety_true_termination_i__pthread_spinlock_t in substring-alloca_true-valid-memsafety_true-termination.i [2018-04-05 16:37:46,883 INFO L230 ultiparseSymbolTable]: Global variable declaration of __U_MULTI_fsubstring_alloca_true_valid_memsafety_true_termination_i____rlim_t in substring-alloca_true-valid-memsafety_true-termination.i [2018-04-05 16:37:46,883 INFO L230 ultiparseSymbolTable]: Global variable declaration of __U_MULTI_fsubstring_alloca_true_valid_memsafety_true_termination_i__fsblkcnt_t in substring-alloca_true-valid-memsafety_true-termination.i [2018-04-05 16:37:46,883 INFO L230 ultiparseSymbolTable]: Global variable declaration of __U_MULTI_fsubstring_alloca_true_valid_memsafety_true_termination_i____uint32_t in substring-alloca_true-valid-memsafety_true-termination.i [2018-04-05 16:37:46,884 INFO L230 ultiparseSymbolTable]: Global variable declaration of __U_MULTI_fsubstring_alloca_true_valid_memsafety_true_termination_i__uid_t in substring-alloca_true-valid-memsafety_true-termination.i [2018-04-05 16:37:46,884 INFO L230 ultiparseSymbolTable]: Global variable declaration of __U_MULTI_fsubstring_alloca_true_valid_memsafety_true_termination_i__wchar_t in substring-alloca_true-valid-memsafety_true-termination.i [2018-04-05 16:37:46,884 INFO L230 ultiparseSymbolTable]: Global variable declaration of __U_MULTI_fsubstring_alloca_true_valid_memsafety_true_termination_i__key_t in substring-alloca_true-valid-memsafety_true-termination.i [2018-04-05 16:37:46,884 INFO L230 ultiparseSymbolTable]: Global variable declaration of __U_MULTI_fsubstring_alloca_true_valid_memsafety_true_termination_i__lldiv_t in substring-alloca_true-valid-memsafety_true-termination.i [2018-04-05 16:37:46,884 INFO L230 ultiparseSymbolTable]: Global variable declaration of __U_MULTI_fsubstring_alloca_true_valid_memsafety_true_termination_i__u_int8_t in substring-alloca_true-valid-memsafety_true-termination.i [2018-04-05 16:37:46,884 INFO L230 ultiparseSymbolTable]: Global variable declaration of __U_MULTI_fsubstring_alloca_true_valid_memsafety_true_termination_i__pthread_t in substring-alloca_true-valid-memsafety_true-termination.i [2018-04-05 16:37:46,884 INFO L230 ultiparseSymbolTable]: Global variable declaration of __U_MULTI_fsubstring_alloca_true_valid_memsafety_true_termination_i__pthread_cond_t in substring-alloca_true-valid-memsafety_true-termination.i [2018-04-05 16:37:46,884 INFO L230 ultiparseSymbolTable]: Global variable declaration of __U_MULTI_fsubstring_alloca_true_valid_memsafety_true_termination_i__u_int16_t in substring-alloca_true-valid-memsafety_true-termination.i [2018-04-05 16:37:46,885 INFO L230 ultiparseSymbolTable]: Global variable declaration of __U_MULTI_fsubstring_alloca_true_valid_memsafety_true_termination_i__quad_t in substring-alloca_true-valid-memsafety_true-termination.i [2018-04-05 16:37:46,885 INFO L230 ultiparseSymbolTable]: Global variable declaration of __U_MULTI_fsubstring_alloca_true_valid_memsafety_true_termination_i__int16_t in substring-alloca_true-valid-memsafety_true-termination.i [2018-04-05 16:37:46,885 INFO L230 ultiparseSymbolTable]: Global variable declaration of __U_MULTI_fsubstring_alloca_true_valid_memsafety_true_termination_i____fd_mask in substring-alloca_true-valid-memsafety_true-termination.i [2018-04-05 16:37:46,885 INFO L230 ultiparseSymbolTable]: Global variable declaration of __U_MULTI_fsubstring_alloca_true_valid_memsafety_true_termination_i__clockid_t in substring-alloca_true-valid-memsafety_true-termination.i [2018-04-05 16:37:46,885 INFO L230 ultiparseSymbolTable]: Global variable declaration of __U_MULTI_fsubstring_alloca_true_valid_memsafety_true_termination_i____clockid_t in substring-alloca_true-valid-memsafety_true-termination.i [2018-04-05 16:37:46,885 INFO L230 ultiparseSymbolTable]: Global variable declaration of __U_MULTI_fsubstring_alloca_true_valid_memsafety_true_termination_i__pthread_barrier_t in substring-alloca_true-valid-memsafety_true-termination.i [2018-04-05 16:37:46,885 INFO L230 ultiparseSymbolTable]: Global variable declaration of __U_MULTI_fsubstring_alloca_true_valid_memsafety_true_termination_i__pthread_attr_t in substring-alloca_true-valid-memsafety_true-termination.i [2018-04-05 16:37:46,886 INFO L230 ultiparseSymbolTable]: Global variable declaration of __U_MULTI_fsubstring_alloca_true_valid_memsafety_true_termination_i____u_char in substring-alloca_true-valid-memsafety_true-termination.i [2018-04-05 16:37:46,886 INFO L230 ultiparseSymbolTable]: Global variable declaration of __U_MULTI_fsubstring_alloca_true_valid_memsafety_true_termination_i____u_quad_t in substring-alloca_true-valid-memsafety_true-termination.i [2018-04-05 16:37:46,886 INFO L230 ultiparseSymbolTable]: Global variable declaration of __U_MULTI_fsubstring_alloca_true_valid_memsafety_true_termination_i____off64_t in substring-alloca_true-valid-memsafety_true-termination.i [2018-04-05 16:37:46,886 INFO L230 ultiparseSymbolTable]: Global variable declaration of __U_MULTI_fsubstring_alloca_true_valid_memsafety_true_termination_i____syscall_ulong_t in substring-alloca_true-valid-memsafety_true-termination.i [2018-04-05 16:37:46,886 INFO L230 ultiparseSymbolTable]: Global variable declaration of __U_MULTI_fsubstring_alloca_true_valid_memsafety_true_termination_i____gid_t in substring-alloca_true-valid-memsafety_true-termination.i [2018-04-05 16:37:46,886 INFO L230 ultiparseSymbolTable]: Global variable declaration of __U_MULTI_fsubstring_alloca_true_valid_memsafety_true_termination_i____id_t in substring-alloca_true-valid-memsafety_true-termination.i [2018-04-05 16:37:46,886 INFO L230 ultiparseSymbolTable]: Global variable declaration of __U_MULTI_fsubstring_alloca_true_valid_memsafety_true_termination_i____timer_t in substring-alloca_true-valid-memsafety_true-termination.i [2018-04-05 16:37:46,886 INFO L230 ultiparseSymbolTable]: Global variable declaration of __U_MULTI_fsubstring_alloca_true_valid_memsafety_true_termination_i____fsblkcnt64_t in substring-alloca_true-valid-memsafety_true-termination.i [2018-04-05 16:37:46,887 INFO L230 ultiparseSymbolTable]: Global variable declaration of __U_MULTI_fsubstring_alloca_true_valid_memsafety_true_termination_i__u_int in substring-alloca_true-valid-memsafety_true-termination.i [2018-04-05 16:37:46,897 INFO L230 ultiparseSymbolTable]: Global variable declaration of __U_MULTI_fsubstring_alloca_true_valid_memsafety_true_termination_i____quad_t in substring-alloca_true-valid-memsafety_true-termination.i [2018-04-05 16:37:46,898 INFO L230 ultiparseSymbolTable]: Global variable declaration of __U_MULTI_fsubstring_alloca_true_valid_memsafety_true_termination_i__pthread_mutexattr_t in substring-alloca_true-valid-memsafety_true-termination.i [2018-04-05 16:37:46,898 INFO L230 ultiparseSymbolTable]: Global variable declaration of __U_MULTI_fsubstring_alloca_true_valid_memsafety_true_termination_i____pid_t in substring-alloca_true-valid-memsafety_true-termination.i [2018-04-05 16:37:46,898 INFO L230 ultiparseSymbolTable]: Global variable declaration of __U_MULTI_fsubstring_alloca_true_valid_memsafety_true_termination_i____u_long in substring-alloca_true-valid-memsafety_true-termination.i [2018-04-05 16:37:46,898 INFO L230 ultiparseSymbolTable]: Global variable declaration of __U_MULTI_fsubstring_alloca_true_valid_memsafety_true_termination_i__u_char in substring-alloca_true-valid-memsafety_true-termination.i [2018-04-05 16:37:46,898 INFO L230 ultiparseSymbolTable]: Global variable declaration of __U_MULTI_fsubstring_alloca_true_valid_memsafety_true_termination_i__ulong in substring-alloca_true-valid-memsafety_true-termination.i [2018-04-05 16:37:46,898 INFO L230 ultiparseSymbolTable]: Global variable declaration of __U_MULTI_fsubstring_alloca_true_valid_memsafety_true_termination_i__pthread_rwlockattr_t in substring-alloca_true-valid-memsafety_true-termination.i [2018-04-05 16:37:46,898 INFO L230 ultiparseSymbolTable]: Global variable declaration of __U_MULTI_fsubstring_alloca_true_valid_memsafety_true_termination_i____int16_t in substring-alloca_true-valid-memsafety_true-termination.i [2018-04-05 16:37:46,899 INFO L230 ultiparseSymbolTable]: Global variable declaration of __U_MULTI_fsubstring_alloca_true_valid_memsafety_true_termination_i__clock_t in substring-alloca_true-valid-memsafety_true-termination.i [2018-04-05 16:37:46,899 INFO L230 ultiparseSymbolTable]: Global variable declaration of __U_MULTI_fsubstring_alloca_true_valid_memsafety_true_termination_i__u_int32_t in substring-alloca_true-valid-memsafety_true-termination.i [2018-04-05 16:37:46,899 INFO L230 ultiparseSymbolTable]: Global variable declaration of __U_MULTI_fsubstring_alloca_true_valid_memsafety_true_termination_i__daddr_t in substring-alloca_true-valid-memsafety_true-termination.i [2018-04-05 16:37:46,899 INFO L230 ultiparseSymbolTable]: Global variable declaration of __U_MULTI_fsubstring_alloca_true_valid_memsafety_true_termination_i__blkcnt_t in substring-alloca_true-valid-memsafety_true-termination.i [2018-04-05 16:37:46,899 INFO L230 ultiparseSymbolTable]: Global variable declaration of __U_MULTI_fsubstring_alloca_true_valid_memsafety_true_termination_i____pthread_list_t in substring-alloca_true-valid-memsafety_true-termination.i [2018-04-05 16:37:46,899 INFO L230 ultiparseSymbolTable]: Global variable declaration of __U_MULTI_fsubstring_alloca_true_valid_memsafety_true_termination_i__pthread_barrierattr_t in substring-alloca_true-valid-memsafety_true-termination.i [2018-04-05 16:37:46,899 INFO L230 ultiparseSymbolTable]: Global variable declaration of __U_MULTI_fsubstring_alloca_true_valid_memsafety_true_termination_i____ino_t in substring-alloca_true-valid-memsafety_true-termination.i [2018-04-05 16:37:46,899 INFO L230 ultiparseSymbolTable]: Global variable declaration of __U_MULTI_fsubstring_alloca_true_valid_memsafety_true_termination_i____off_t in substring-alloca_true-valid-memsafety_true-termination.i [2018-04-05 16:37:46,899 INFO L230 ultiparseSymbolTable]: Global variable declaration of __U_MULTI_fsubstring_alloca_true_valid_memsafety_true_termination_i__blksize_t in substring-alloca_true-valid-memsafety_true-termination.i [2018-04-05 16:37:46,900 INFO L230 ultiparseSymbolTable]: Global variable declaration of __U_MULTI_fsubstring_alloca_true_valid_memsafety_true_termination_i__fd_mask in substring-alloca_true-valid-memsafety_true-termination.i [2018-04-05 16:37:46,900 INFO L230 ultiparseSymbolTable]: Global variable declaration of __U_MULTI_fsubstring_alloca_true_valid_memsafety_true_termination_i____caddr_t in substring-alloca_true-valid-memsafety_true-termination.i [2018-04-05 16:37:46,900 INFO L230 ultiparseSymbolTable]: Global variable declaration of __U_MULTI_fsubstring_alloca_true_valid_memsafety_true_termination_i__u_long in substring-alloca_true-valid-memsafety_true-termination.i [2018-04-05 16:37:46,900 INFO L230 ultiparseSymbolTable]: Global variable declaration of __U_MULTI_fsubstring_alloca_true_valid_memsafety_true_termination_i____sigset_t in substring-alloca_true-valid-memsafety_true-termination.i [2018-04-05 16:37:46,900 INFO L230 ultiparseSymbolTable]: Global variable declaration of __U_MULTI_fsubstring_alloca_true_valid_memsafety_true_termination_i__sigset_t in substring-alloca_true-valid-memsafety_true-termination.i [2018-04-05 16:37:46,900 INFO L230 ultiparseSymbolTable]: Global variable declaration of __U_MULTI_fsubstring_alloca_true_valid_memsafety_true_termination_i____fsid_t in substring-alloca_true-valid-memsafety_true-termination.i [2018-04-05 16:37:46,900 INFO L230 ultiparseSymbolTable]: Global variable declaration of __U_MULTI_fsubstring_alloca_true_valid_memsafety_true_termination_i____ino64_t in substring-alloca_true-valid-memsafety_true-termination.i [2018-04-05 16:37:46,900 INFO L230 ultiparseSymbolTable]: Global variable declaration of __U_MULTI_fsubstring_alloca_true_valid_memsafety_true_termination_i____uint8_t in substring-alloca_true-valid-memsafety_true-termination.i [2018-04-05 16:37:46,901 INFO L230 ultiparseSymbolTable]: Global variable declaration of __U_MULTI_fsubstring_alloca_true_valid_memsafety_true_termination_i__time_t in substring-alloca_true-valid-memsafety_true-termination.i [2018-04-05 16:37:46,901 INFO L230 ultiparseSymbolTable]: Global variable declaration of __U_MULTI_fsubstring_alloca_true_valid_memsafety_true_termination_i____clock_t in substring-alloca_true-valid-memsafety_true-termination.i [2018-04-05 16:37:46,901 INFO L230 ultiparseSymbolTable]: Global variable declaration of __U_MULTI_fsubstring_alloca_true_valid_memsafety_true_termination_i____daddr_t in substring-alloca_true-valid-memsafety_true-termination.i [2018-04-05 16:37:46,901 INFO L230 ultiparseSymbolTable]: Global variable declaration of __U_MULTI_fsubstring_alloca_true_valid_memsafety_true_termination_i____key_t in substring-alloca_true-valid-memsafety_true-termination.i [2018-04-05 16:37:46,901 INFO L230 ultiparseSymbolTable]: Global variable declaration of __U_MULTI_fsubstring_alloca_true_valid_memsafety_true_termination_i__mode_t in substring-alloca_true-valid-memsafety_true-termination.i [2018-04-05 16:37:46,901 INFO L230 ultiparseSymbolTable]: Global variable declaration of __U_MULTI_fsubstring_alloca_true_valid_memsafety_true_termination_i____useconds_t in substring-alloca_true-valid-memsafety_true-termination.i [2018-04-05 16:37:46,901 INFO L230 ultiparseSymbolTable]: Global variable declaration of __U_MULTI_fsubstring_alloca_true_valid_memsafety_true_termination_i__dev_t in substring-alloca_true-valid-memsafety_true-termination.i [2018-04-05 16:37:46,901 INFO L230 ultiparseSymbolTable]: Global variable declaration of __U_MULTI_fsubstring_alloca_true_valid_memsafety_true_termination_i__pthread_condattr_t in substring-alloca_true-valid-memsafety_true-termination.i [2018-04-05 16:37:46,901 INFO L230 ultiparseSymbolTable]: Global variable declaration of __U_MULTI_fsubstring_alloca_true_valid_memsafety_true_termination_i____u_short in substring-alloca_true-valid-memsafety_true-termination.i [2018-04-05 16:37:46,902 INFO L230 ultiparseSymbolTable]: Global variable declaration of __U_MULTI_fsubstring_alloca_true_valid_memsafety_true_termination_i__fd_set in substring-alloca_true-valid-memsafety_true-termination.i [2018-04-05 16:37:46,902 INFO L230 ultiparseSymbolTable]: Global variable declaration of __U_MULTI_fsubstring_alloca_true_valid_memsafety_true_termination_i____loff_t in substring-alloca_true-valid-memsafety_true-termination.i [2018-04-05 16:37:46,902 INFO L230 ultiparseSymbolTable]: Global variable declaration of __U_MULTI_fsubstring_alloca_true_valid_memsafety_true_termination_i__pthread_rwlock_t in substring-alloca_true-valid-memsafety_true-termination.i [2018-04-05 16:37:46,902 INFO L230 ultiparseSymbolTable]: Global variable declaration of __U_MULTI_fsubstring_alloca_true_valid_memsafety_true_termination_i____blkcnt_t in substring-alloca_true-valid-memsafety_true-termination.i [2018-04-05 16:37:46,902 INFO L230 ultiparseSymbolTable]: Global variable declaration of __U_MULTI_fsubstring_alloca_true_valid_memsafety_true_termination_i__suseconds_t in substring-alloca_true-valid-memsafety_true-termination.i [2018-04-05 16:37:46,902 INFO L230 ultiparseSymbolTable]: Global variable declaration of __U_MULTI_fsubstring_alloca_true_valid_memsafety_true_termination_i____u_int in substring-alloca_true-valid-memsafety_true-termination.i [2018-04-05 16:37:46,902 INFO L230 ultiparseSymbolTable]: Global variable declaration of __U_MULTI_fsubstring_alloca_true_valid_memsafety_true_termination_i____fsblkcnt_t in substring-alloca_true-valid-memsafety_true-termination.i [2018-04-05 16:37:46,902 INFO L230 ultiparseSymbolTable]: Global variable declaration of __U_MULTI_fsubstring_alloca_true_valid_memsafety_true_termination_i__fsid_t in substring-alloca_true-valid-memsafety_true-termination.i [2018-04-05 16:37:46,903 INFO L230 ultiparseSymbolTable]: Global variable declaration of __U_MULTI_fsubstring_alloca_true_valid_memsafety_true_termination_i____dev_t in substring-alloca_true-valid-memsafety_true-termination.i [2018-04-05 16:37:46,903 INFO L230 ultiparseSymbolTable]: Global variable declaration of __U_MULTI_fsubstring_alloca_true_valid_memsafety_true_termination_i____syscall_slong_t in substring-alloca_true-valid-memsafety_true-termination.i [2018-04-05 16:37:46,903 INFO L230 ultiparseSymbolTable]: Global variable declaration of __U_MULTI_fsubstring_alloca_true_valid_memsafety_true_termination_i__pthread_key_t in substring-alloca_true-valid-memsafety_true-termination.i [2018-04-05 16:37:46,903 INFO L230 ultiparseSymbolTable]: Global variable declaration of __U_MULTI_fsubstring_alloca_true_valid_memsafety_true_termination_i____time_t in substring-alloca_true-valid-memsafety_true-termination.i [2018-04-05 16:37:46,903 INFO L230 ultiparseSymbolTable]: Global variable declaration of __U_MULTI_fsubstring_alloca_true_valid_memsafety_true_termination_i____int64_t in substring-alloca_true-valid-memsafety_true-termination.i [2018-04-05 16:37:46,903 INFO L230 ultiparseSymbolTable]: Global variable declaration of __U_MULTI_fsubstring_alloca_true_valid_memsafety_true_termination_i__ushort in substring-alloca_true-valid-memsafety_true-termination.i [2018-04-05 16:37:46,903 INFO L230 ultiparseSymbolTable]: Global variable declaration of __U_MULTI_fsubstring_alloca_true_valid_memsafety_true_termination_i____qaddr_t in substring-alloca_true-valid-memsafety_true-termination.i [2018-04-05 16:37:46,903 INFO L230 ultiparseSymbolTable]: Global variable declaration of __U_MULTI_fsubstring_alloca_true_valid_memsafety_true_termination_i____WAIT_STATUS in substring-alloca_true-valid-memsafety_true-termination.i [2018-04-05 16:37:46,903 INFO L230 ultiparseSymbolTable]: Global variable declaration of __U_MULTI_fsubstring_alloca_true_valid_memsafety_true_termination_i____blksize_t in substring-alloca_true-valid-memsafety_true-termination.i [2018-04-05 16:37:46,904 INFO L230 ultiparseSymbolTable]: Global variable declaration of __U_MULTI_fsubstring_alloca_true_valid_memsafety_true_termination_i__pthread_mutex_t in substring-alloca_true-valid-memsafety_true-termination.i [2018-04-05 16:37:46,917 INFO L230 ultiparseSymbolTable]: Global variable declaration of __U_MULTI_fsubstring_alloca_true_valid_memsafety_true_termination_i__ino_t in substring-alloca_true-valid-memsafety_true-termination.i [2018-04-05 16:37:46,917 INFO L230 ultiparseSymbolTable]: Global variable declaration of __U_MULTI_fsubstring_alloca_true_valid_memsafety_true_termination_i__int64_t in substring-alloca_true-valid-memsafety_true-termination.i [2018-04-05 16:37:46,917 INFO L230 ultiparseSymbolTable]: Global variable declaration of __U_MULTI_fsubstring_alloca_true_valid_memsafety_true_termination_i__u_int64_t in substring-alloca_true-valid-memsafety_true-termination.i [2018-04-05 16:37:46,917 INFO L230 ultiparseSymbolTable]: Global variable declaration of __U_MULTI_fsubstring_alloca_true_valid_memsafety_true_termination_i__loff_t in substring-alloca_true-valid-memsafety_true-termination.i [2018-04-05 16:37:46,917 INFO L230 ultiparseSymbolTable]: Global variable declaration of __U_MULTI_fsubstring_alloca_true_valid_memsafety_true_termination_i____uint16_t in substring-alloca_true-valid-memsafety_true-termination.i [2018-04-05 16:37:46,918 INFO L230 ultiparseSymbolTable]: Global variable declaration of __U_MULTI_fsubstring_alloca_true_valid_memsafety_true_termination_i____fsfilcnt_t in substring-alloca_true-valid-memsafety_true-termination.i [2018-04-05 16:37:46,918 INFO L230 ultiparseSymbolTable]: Global variable declaration of __U_MULTI_fsubstring_alloca_true_valid_memsafety_true_termination_i____rlim64_t in substring-alloca_true-valid-memsafety_true-termination.i [2018-04-05 16:37:46,918 INFO L230 ultiparseSymbolTable]: Global variable declaration of __U_MULTI_fsubstring_alloca_true_valid_memsafety_true_termination_i__u_quad_t in substring-alloca_true-valid-memsafety_true-termination.i [2018-04-05 16:37:46,918 INFO L230 ultiparseSymbolTable]: Global variable declaration of __U_MULTI_fsubstring_alloca_true_valid_memsafety_true_termination_i__int8_t in substring-alloca_true-valid-memsafety_true-termination.i [2018-04-05 16:37:46,990 INFO L330 CDTParser]: Deleted temporary CDT project at /storage/ultimate/releaseScripts/default/UAutomizer-linux/data/FLAG06d33119c [2018-04-05 16:37:46,999 INFO L304 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2018-04-05 16:37:47,030 INFO L131 ToolchainWalker]: Walking toolchain with 4 elements. [2018-04-05 16:37:47,035 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2018-04-05 16:37:47,036 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2018-04-05 16:37:47,061 INFO L276 PluginConnector]: CACSL2BoogieTranslator initialized [2018-04-05 16:37:47,063 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 05.04 04:37:46" (1/1) ... [2018-04-05 16:37:47,076 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@2896cc88 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 05.04 04:37:47, skipping insertion in model container [2018-04-05 16:37:47,076 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 05.04 04:37:46" (1/1) ... [2018-04-05 16:37:47,125 INFO L167 Dispatcher]: Using SV-COMP mode [2018-04-05 16:37:47,246 INFO L167 Dispatcher]: Using SV-COMP mode [2018-04-05 16:37:47,699 INFO L175 PostProcessor]: Settings: Checked method=main [2018-04-05 16:37:47,823 INFO L175 PostProcessor]: Settings: Checked method=main [2018-04-05 16:37:47,840 INFO L100 SccComputation]: Graph consists of 0 InCaSumBalls and 112 non ball SCCs. Number of states in SCCs 112. [2018-04-05 16:37:47,952 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 05.04 04:37:47 WrapperNode [2018-04-05 16:37:47,952 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2018-04-05 16:37:47,954 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2018-04-05 16:37:47,954 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2018-04-05 16:37:47,955 INFO L276 PluginConnector]: Boogie Preprocessor initialized [2018-04-05 16:37:47,970 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 05.04 04:37:47" (1/1) ... [2018-04-05 16:37:47,970 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 05.04 04:37:47" (1/1) ... [2018-04-05 16:37:48,001 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 05.04 04:37:47" (1/1) ... [2018-04-05 16:37:48,001 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 05.04 04:37:47" (1/1) ... [2018-04-05 16:37:48,042 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 05.04 04:37:47" (1/1) ... [2018-04-05 16:37:48,060 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 05.04 04:37:47" (1/1) ... [2018-04-05 16:37:48,067 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 05.04 04:37:47" (1/1) ... [2018-04-05 16:37:48,079 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2018-04-05 16:37:48,089 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2018-04-05 16:37:48,089 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2018-04-05 16:37:48,090 INFO L276 PluginConnector]: RCFGBuilder initialized [2018-04-05 16:37:48,091 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 05.04 04:37:47" (1/1) ... No working directory specified, using /storage/ultimate/releaseScripts/default/UAutomizer-linux/z3 Starting monitored process 1 with z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 1 with z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2018-04-05 16:37:48,512 INFO L136 BoogieDeclarations]: Found implementation of procedure ULTIMATE.init [2018-04-05 16:37:48,513 INFO L136 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2018-04-05 16:37:48,513 INFO L136 BoogieDeclarations]: Found implementation of procedure __U_MULTI_fsubstring_alloca_true_valid_memsafety_true_termination_i____bswap_32 [2018-04-05 16:37:48,513 INFO L136 BoogieDeclarations]: Found implementation of procedure __U_MULTI_fsubstring_alloca_true_valid_memsafety_true_termination_i____bswap_64 [2018-04-05 16:37:48,513 INFO L136 BoogieDeclarations]: Found implementation of procedure substring [2018-04-05 16:37:48,513 INFO L136 BoogieDeclarations]: Found implementation of procedure main [2018-04-05 16:37:48,513 INFO L128 BoogieDeclarations]: Found specification of procedure __U_MULTI_fsubstring_alloca_true_valid_memsafety_true_termination_i____bswap_32 [2018-04-05 16:37:48,526 INFO L128 BoogieDeclarations]: Found specification of procedure __U_MULTI_fsubstring_alloca_true_valid_memsafety_true_termination_i____bswap_64 [2018-04-05 16:37:48,526 INFO L128 BoogieDeclarations]: Found specification of procedure __ctype_get_mb_cur_max [2018-04-05 16:37:48,526 INFO L128 BoogieDeclarations]: Found specification of procedure atof [2018-04-05 16:37:48,526 INFO L128 BoogieDeclarations]: Found specification of procedure atoi [2018-04-05 16:37:48,526 INFO L128 BoogieDeclarations]: Found specification of procedure atol [2018-04-05 16:37:48,527 INFO L128 BoogieDeclarations]: Found specification of procedure atoll [2018-04-05 16:37:48,527 INFO L128 BoogieDeclarations]: Found specification of procedure strtod [2018-04-05 16:37:48,527 INFO L128 BoogieDeclarations]: Found specification of procedure strtof [2018-04-05 16:37:48,527 INFO L128 BoogieDeclarations]: Found specification of procedure strtold [2018-04-05 16:37:48,527 INFO L128 BoogieDeclarations]: Found specification of procedure strtol [2018-04-05 16:37:48,527 INFO L128 BoogieDeclarations]: Found specification of procedure strtoul [2018-04-05 16:37:48,527 INFO L128 BoogieDeclarations]: Found specification of procedure strtoq [2018-04-05 16:37:48,527 INFO L128 BoogieDeclarations]: Found specification of procedure strtouq [2018-04-05 16:37:48,528 INFO L128 BoogieDeclarations]: Found specification of procedure strtoll [2018-04-05 16:37:48,528 INFO L128 BoogieDeclarations]: Found specification of procedure strtoull [2018-04-05 16:37:48,528 INFO L128 BoogieDeclarations]: Found specification of procedure l64a [2018-04-05 16:37:48,528 INFO L128 BoogieDeclarations]: Found specification of procedure a64l [2018-04-05 16:37:48,528 INFO L128 BoogieDeclarations]: Found specification of procedure select [2018-04-05 16:37:48,528 INFO L128 BoogieDeclarations]: Found specification of procedure pselect [2018-04-05 16:37:48,528 INFO L128 BoogieDeclarations]: Found specification of procedure gnu_dev_major [2018-04-05 16:37:48,528 INFO L128 BoogieDeclarations]: Found specification of procedure gnu_dev_minor [2018-04-05 16:37:48,529 INFO L128 BoogieDeclarations]: Found specification of procedure gnu_dev_makedev [2018-04-05 16:37:48,529 INFO L128 BoogieDeclarations]: Found specification of procedure random [2018-04-05 16:37:48,529 INFO L128 BoogieDeclarations]: Found specification of procedure srandom [2018-04-05 16:37:48,529 INFO L128 BoogieDeclarations]: Found specification of procedure initstate [2018-04-05 16:37:48,529 INFO L128 BoogieDeclarations]: Found specification of procedure setstate [2018-04-05 16:37:48,529 INFO L128 BoogieDeclarations]: Found specification of procedure random_r [2018-04-05 16:37:48,529 INFO L128 BoogieDeclarations]: Found specification of procedure srandom_r [2018-04-05 16:37:48,529 INFO L128 BoogieDeclarations]: Found specification of procedure initstate_r [2018-04-05 16:37:48,530 INFO L128 BoogieDeclarations]: Found specification of procedure setstate_r [2018-04-05 16:37:48,530 INFO L128 BoogieDeclarations]: Found specification of procedure rand [2018-04-05 16:37:48,544 INFO L128 BoogieDeclarations]: Found specification of procedure srand [2018-04-05 16:37:48,544 INFO L128 BoogieDeclarations]: Found specification of procedure rand_r [2018-04-05 16:37:48,544 INFO L128 BoogieDeclarations]: Found specification of procedure drand48 [2018-04-05 16:37:48,545 INFO L128 BoogieDeclarations]: Found specification of procedure erand48 [2018-04-05 16:37:48,545 INFO L128 BoogieDeclarations]: Found specification of procedure lrand48 [2018-04-05 16:37:48,545 INFO L128 BoogieDeclarations]: Found specification of procedure nrand48 [2018-04-05 16:37:48,545 INFO L128 BoogieDeclarations]: Found specification of procedure mrand48 [2018-04-05 16:37:48,545 INFO L128 BoogieDeclarations]: Found specification of procedure jrand48 [2018-04-05 16:37:48,545 INFO L128 BoogieDeclarations]: Found specification of procedure srand48 [2018-04-05 16:37:48,545 INFO L128 BoogieDeclarations]: Found specification of procedure seed48 [2018-04-05 16:37:48,545 INFO L128 BoogieDeclarations]: Found specification of procedure lcong48 [2018-04-05 16:37:48,546 INFO L128 BoogieDeclarations]: Found specification of procedure drand48_r [2018-04-05 16:37:48,546 INFO L128 BoogieDeclarations]: Found specification of procedure erand48_r [2018-04-05 16:37:48,546 INFO L128 BoogieDeclarations]: Found specification of procedure lrand48_r [2018-04-05 16:37:48,546 INFO L128 BoogieDeclarations]: Found specification of procedure nrand48_r [2018-04-05 16:37:48,546 INFO L128 BoogieDeclarations]: Found specification of procedure mrand48_r [2018-04-05 16:37:48,546 INFO L128 BoogieDeclarations]: Found specification of procedure jrand48_r [2018-04-05 16:37:48,546 INFO L128 BoogieDeclarations]: Found specification of procedure srand48_r [2018-04-05 16:37:48,546 INFO L128 BoogieDeclarations]: Found specification of procedure seed48_r [2018-04-05 16:37:48,547 INFO L128 BoogieDeclarations]: Found specification of procedure lcong48_r [2018-04-05 16:37:48,547 INFO L128 BoogieDeclarations]: Found specification of procedure malloc [2018-04-05 16:37:48,547 INFO L128 BoogieDeclarations]: Found specification of procedure calloc [2018-04-05 16:37:48,558 INFO L128 BoogieDeclarations]: Found specification of procedure realloc [2018-04-05 16:37:48,558 INFO L128 BoogieDeclarations]: Found specification of procedure free [2018-04-05 16:37:48,558 INFO L128 BoogieDeclarations]: Found specification of procedure cfree [2018-04-05 16:37:48,558 INFO L128 BoogieDeclarations]: Found specification of procedure alloca [2018-04-05 16:37:48,558 INFO L128 BoogieDeclarations]: Found specification of procedure valloc [2018-04-05 16:37:48,559 INFO L128 BoogieDeclarations]: Found specification of procedure posix_memalign [2018-04-05 16:37:48,559 INFO L128 BoogieDeclarations]: Found specification of procedure abort [2018-04-05 16:37:48,559 INFO L128 BoogieDeclarations]: Found specification of procedure atexit [2018-04-05 16:37:48,559 INFO L128 BoogieDeclarations]: Found specification of procedure on_exit [2018-04-05 16:37:48,559 INFO L128 BoogieDeclarations]: Found specification of procedure exit [2018-04-05 16:37:48,559 INFO L128 BoogieDeclarations]: Found specification of procedure _Exit [2018-04-05 16:37:48,559 INFO L128 BoogieDeclarations]: Found specification of procedure getenv [2018-04-05 16:37:48,559 INFO L128 BoogieDeclarations]: Found specification of procedure putenv [2018-04-05 16:37:48,560 INFO L128 BoogieDeclarations]: Found specification of procedure setenv [2018-04-05 16:37:48,560 INFO L128 BoogieDeclarations]: Found specification of procedure unsetenv [2018-04-05 16:37:48,560 INFO L128 BoogieDeclarations]: Found specification of procedure clearenv [2018-04-05 16:37:48,560 INFO L128 BoogieDeclarations]: Found specification of procedure mktemp [2018-04-05 16:37:48,560 INFO L128 BoogieDeclarations]: Found specification of procedure mkstemp [2018-04-05 16:37:48,560 INFO L128 BoogieDeclarations]: Found specification of procedure mkstemps [2018-04-05 16:37:48,560 INFO L128 BoogieDeclarations]: Found specification of procedure mkdtemp [2018-04-05 16:37:48,561 INFO L128 BoogieDeclarations]: Found specification of procedure system [2018-04-05 16:37:48,561 INFO L128 BoogieDeclarations]: Found specification of procedure realpath [2018-04-05 16:37:48,562 INFO L128 BoogieDeclarations]: Found specification of procedure bsearch [2018-04-05 16:37:48,562 INFO L128 BoogieDeclarations]: Found specification of procedure qsort [2018-04-05 16:37:48,562 INFO L128 BoogieDeclarations]: Found specification of procedure abs [2018-04-05 16:37:48,562 INFO L128 BoogieDeclarations]: Found specification of procedure labs [2018-04-05 16:37:48,562 INFO L128 BoogieDeclarations]: Found specification of procedure llabs [2018-04-05 16:37:48,562 INFO L128 BoogieDeclarations]: Found specification of procedure div [2018-04-05 16:37:48,562 INFO L128 BoogieDeclarations]: Found specification of procedure ldiv [2018-04-05 16:37:48,573 INFO L128 BoogieDeclarations]: Found specification of procedure lldiv [2018-04-05 16:37:48,574 INFO L128 BoogieDeclarations]: Found specification of procedure ecvt [2018-04-05 16:37:48,574 INFO L128 BoogieDeclarations]: Found specification of procedure fcvt [2018-04-05 16:37:48,574 INFO L128 BoogieDeclarations]: Found specification of procedure gcvt [2018-04-05 16:37:48,574 INFO L128 BoogieDeclarations]: Found specification of procedure qecvt [2018-04-05 16:37:48,574 INFO L128 BoogieDeclarations]: Found specification of procedure qfcvt [2018-04-05 16:37:48,574 INFO L128 BoogieDeclarations]: Found specification of procedure qgcvt [2018-04-05 16:37:48,574 INFO L128 BoogieDeclarations]: Found specification of procedure ecvt_r [2018-04-05 16:37:48,575 INFO L128 BoogieDeclarations]: Found specification of procedure fcvt_r [2018-04-05 16:37:48,575 INFO L128 BoogieDeclarations]: Found specification of procedure qecvt_r [2018-04-05 16:37:48,575 INFO L128 BoogieDeclarations]: Found specification of procedure qfcvt_r [2018-04-05 16:37:48,575 INFO L128 BoogieDeclarations]: Found specification of procedure mblen [2018-04-05 16:37:48,575 INFO L128 BoogieDeclarations]: Found specification of procedure mbtowc [2018-04-05 16:37:48,575 INFO L128 BoogieDeclarations]: Found specification of procedure wctomb [2018-04-05 16:37:48,575 INFO L128 BoogieDeclarations]: Found specification of procedure mbstowcs [2018-04-05 16:37:48,575 INFO L128 BoogieDeclarations]: Found specification of procedure wcstombs [2018-04-05 16:37:48,576 INFO L128 BoogieDeclarations]: Found specification of procedure rpmatch [2018-04-05 16:37:48,576 INFO L128 BoogieDeclarations]: Found specification of procedure getsubopt [2018-04-05 16:37:48,576 INFO L128 BoogieDeclarations]: Found specification of procedure getloadavg [2018-04-05 16:37:48,576 INFO L128 BoogieDeclarations]: Found specification of procedure __VERIFIER_nondet_int [2018-04-05 16:37:48,576 INFO L128 BoogieDeclarations]: Found specification of procedure substring [2018-04-05 16:37:48,576 INFO L128 BoogieDeclarations]: Found specification of procedure read~int [2018-04-05 16:37:48,576 INFO L128 BoogieDeclarations]: Found specification of procedure main [2018-04-05 16:37:48,577 INFO L128 BoogieDeclarations]: Found specification of procedure #Ultimate.alloc [2018-04-05 16:37:48,579 INFO L128 BoogieDeclarations]: Found specification of procedure write~int [2018-04-05 16:37:48,580 INFO L128 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2018-04-05 16:37:48,580 INFO L128 BoogieDeclarations]: Found specification of procedure ULTIMATE.init [2018-04-05 16:37:48,580 INFO L128 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2018-04-05 16:37:48,580 INFO L128 BoogieDeclarations]: Found specification of procedure write~unchecked~int [2018-04-05 16:37:49,808 INFO L259 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2018-04-05 16:37:49,810 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 05.04 04:37:49 BoogieIcfgContainer [2018-04-05 16:37:49,810 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2018-04-05 16:37:49,811 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2018-04-05 16:37:49,811 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2018-04-05 16:37:49,820 INFO L276 PluginConnector]: TraceAbstraction initialized [2018-04-05 16:37:49,820 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 05.04 04:37:46" (1/3) ... [2018-04-05 16:37:49,821 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@106a704a and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 05.04 04:37:49, skipping insertion in model container [2018-04-05 16:37:49,822 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 05.04 04:37:47" (2/3) ... [2018-04-05 16:37:49,822 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@106a704a and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 05.04 04:37:49, skipping insertion in model container [2018-04-05 16:37:49,822 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 05.04 04:37:49" (3/3) ... [2018-04-05 16:37:49,826 INFO L107 eAbstractionObserver]: Analyzing ICFG substring-alloca_true-valid-memsafety_true-termination.i [2018-04-05 16:37:49,846 INFO L131 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2018-04-05 16:37:49,883 INFO L143 ceAbstractionStarter]: Appying trace abstraction to program that has 15 error locations. [2018-04-05 16:37:50,035 INFO L128 ementStrategyFactory]: Using default assertion order modulation [2018-04-05 16:37:50,043 INFO L369 AbstractCegarLoop]: Interprodecural is true [2018-04-05 16:37:50,044 INFO L370 AbstractCegarLoop]: Hoare is true [2018-04-05 16:37:50,044 INFO L371 AbstractCegarLoop]: Compute interpolants for FPandBP [2018-04-05 16:37:50,044 INFO L372 AbstractCegarLoop]: Backedges is TWOTRACK [2018-04-05 16:37:50,044 INFO L373 AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2018-04-05 16:37:50,044 INFO L374 AbstractCegarLoop]: Difference is false [2018-04-05 16:37:50,044 INFO L375 AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA [2018-04-05 16:37:50,044 INFO L380 AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == AllErrorsAtOnce======== [2018-04-05 16:37:50,045 INFO L87 2NestedWordAutomaton]: Mode: main mode - execution starts in main procedure [2018-04-05 16:37:50,080 INFO L276 IsEmpty]: Start isEmpty. Operand 92 states. [2018-04-05 16:37:50,093 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 20 [2018-04-05 16:37:50,093 INFO L347 BasicCegarLoop]: Found error trace [2018-04-05 16:37:50,095 INFO L355 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2018-04-05 16:37:50,096 INFO L408 AbstractCegarLoop]: === Iteration 1 === [mainErr3RequiresViolation, mainErr1RequiresViolation, mainErr2RequiresViolation, mainErr4EnsuresViolationMEMORY_LEAK, mainErr0RequiresViolation, substringErr3RequiresViolation, substringErr1RequiresViolation, substringErr7RequiresViolation, substringErr9RequiresViolation, substringErr2RequiresViolation, substringErr8RequiresViolation, substringErr4RequiresViolation, substringErr6RequiresViolation, substringErr0RequiresViolation, substringErr5RequiresViolation]=== [2018-04-05 16:37:50,103 INFO L82 PathProgramCache]: Analyzing trace with hash -727582181, now seen corresponding path program 1 times No working directory specified, using /storage/ultimate/releaseScripts/default/UAutomizer-linux/z3 Starting monitored process 2 with z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 2 with z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2018-04-05 16:37:50,163 INFO L68 tionRefinementEngine]: Using refinement strategy FixedRefinementStrategy [2018-04-05 16:37:50,243 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-04-05 16:37:50,258 INFO L270 TraceCheckSpWp]: Computing forward predicates... [2018-04-05 16:37:50,356 INFO L477 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 6 treesize of output 5 [2018-04-05 16:37:50,359 INFO L267 ElimStorePlain]: Start of recursive call 2: End of recursive call: and 1 xjuncts. [2018-04-05 16:37:50,378 INFO L267 ElimStorePlain]: Start of recursive call 1: 1 dim-1 vars, End of recursive call: and 1 xjuncts. [2018-04-05 16:37:50,379 INFO L202 ElimStorePlain]: Needed 2 recursive calls to eliminate 1 variables, input treesize:6, output treesize:5 [2018-04-05 16:37:50,490 INFO L477 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 12 treesize of output 11 [2018-04-05 16:37:50,491 INFO L267 ElimStorePlain]: Start of recursive call 2: End of recursive call: and 1 xjuncts. [2018-04-05 16:37:50,518 INFO L267 ElimStorePlain]: Start of recursive call 1: 1 dim-0 vars, 1 dim-1 vars, End of recursive call: 1 dim-0 vars, and 1 xjuncts. [2018-04-05 16:37:50,518 INFO L202 ElimStorePlain]: Needed 2 recursive calls to eliminate 2 variables, input treesize:12, output treesize:11 [2018-04-05 16:37:50,558 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-04-05 16:37:50,558 INFO L314 TraceCheckSpWp]: Computing backward predicates... [2018-04-05 16:37:50,630 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-04-05 16:37:50,730 INFO L320 seRefinementStrategy]: Constructing automaton from 2 perfect and 0 imperfect interpolant sequences. [2018-04-05 16:37:50,730 INFO L335 seRefinementStrategy]: Number of different interpolants: perfect sequences [3, 3] imperfect sequences [] total 3 [2018-04-05 16:37:50,735 INFO L442 AbstractCegarLoop]: Interpolant automaton has 4 states [2018-04-05 16:37:50,759 INFO L132 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2018-04-05 16:37:50,760 INFO L133 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2018-04-05 16:37:50,763 INFO L87 Difference]: Start difference. First operand 92 states. Second operand 4 states. [2018-04-05 16:37:51,127 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-04-05 16:37:51,131 INFO L93 Difference]: Finished difference Result 154 states and 166 transitions. [2018-04-05 16:37:51,131 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2018-04-05 16:37:51,133 INFO L78 Accepts]: Start accepts. Automaton has 4 states. Word has length 19 [2018-04-05 16:37:51,134 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-04-05 16:37:51,147 INFO L225 Difference]: With dead ends: 154 [2018-04-05 16:37:51,148 INFO L226 Difference]: Without dead ends: 88 [2018-04-05 16:37:51,153 INFO L567 BasicCegarLoop]: 0 DeclaredPredicates, 38 GetRequests, 33 SyntacticMatches, 2 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2018-04-05 16:37:51,188 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 88 states. [2018-04-05 16:37:51,245 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 88 to 88. [2018-04-05 16:37:51,247 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 88 states. [2018-04-05 16:37:51,252 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 88 states to 88 states and 93 transitions. [2018-04-05 16:37:51,254 INFO L78 Accepts]: Start accepts. Automaton has 88 states and 93 transitions. Word has length 19 [2018-04-05 16:37:51,256 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-04-05 16:37:51,256 INFO L459 AbstractCegarLoop]: Abstraction has 88 states and 93 transitions. [2018-04-05 16:37:51,256 INFO L460 AbstractCegarLoop]: Interpolant automaton has 4 states. [2018-04-05 16:37:51,256 INFO L276 IsEmpty]: Start isEmpty. Operand 88 states and 93 transitions. [2018-04-05 16:37:51,258 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 20 [2018-04-05 16:37:51,258 INFO L347 BasicCegarLoop]: Found error trace [2018-04-05 16:37:51,259 INFO L355 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2018-04-05 16:37:51,259 INFO L408 AbstractCegarLoop]: === Iteration 2 === [mainErr3RequiresViolation, mainErr1RequiresViolation, mainErr2RequiresViolation, mainErr4EnsuresViolationMEMORY_LEAK, mainErr0RequiresViolation, substringErr3RequiresViolation, substringErr1RequiresViolation, substringErr7RequiresViolation, substringErr9RequiresViolation, substringErr2RequiresViolation, substringErr8RequiresViolation, substringErr4RequiresViolation, substringErr6RequiresViolation, substringErr0RequiresViolation, substringErr5RequiresViolation]=== [2018-04-05 16:37:51,259 INFO L82 PathProgramCache]: Analyzing trace with hash -727582180, now seen corresponding path program 1 times No working directory specified, using /storage/ultimate/releaseScripts/default/UAutomizer-linux/z3 Starting monitored process 3 with z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 3 with z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2018-04-05 16:37:51,288 INFO L68 tionRefinementEngine]: Using refinement strategy FixedRefinementStrategy [2018-04-05 16:37:51,376 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-04-05 16:37:51,379 INFO L270 TraceCheckSpWp]: Computing forward predicates... [2018-04-05 16:37:51,417 INFO L477 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 6 treesize of output 5 [2018-04-05 16:37:51,417 INFO L267 ElimStorePlain]: Start of recursive call 2: End of recursive call: and 1 xjuncts. [2018-04-05 16:37:51,489 INFO L477 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 6 treesize of output 5 [2018-04-05 16:37:51,489 INFO L267 ElimStorePlain]: Start of recursive call 3: End of recursive call: and 1 xjuncts. [2018-04-05 16:37:51,539 INFO L267 ElimStorePlain]: Start of recursive call 1: 2 dim-1 vars, End of recursive call: and 1 xjuncts. [2018-04-05 16:37:51,539 INFO L202 ElimStorePlain]: Needed 3 recursive calls to eliminate 2 variables, input treesize:19, output treesize:17 [2018-04-05 16:37:51,733 INFO L700 Elim1Store]: detected not equals via solver [2018-04-05 16:37:51,743 INFO L700 Elim1Store]: detected not equals via solver [2018-04-05 16:37:51,745 INFO L477 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 2 select indices, 2 select index equivalence classes, 2 disjoint index pairs (out of 1 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 11 treesize of output 4 [2018-04-05 16:37:51,745 INFO L267 ElimStorePlain]: Start of recursive call 2: End of recursive call: and 1 xjuncts. [2018-04-05 16:37:52,115 INFO L303 Elim1Store]: Index analysis took 108 ms [2018-04-05 16:37:52,116 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 [2018-04-05 16:37:52,117 INFO L267 ElimStorePlain]: Start of recursive call 3: End of recursive call: and 1 xjuncts. [2018-04-05 16:37:52,471 INFO L267 ElimStorePlain]: Start of recursive call 1: 2 dim-0 vars, 2 dim-1 vars, End of recursive call: and 1 xjuncts. [2018-04-05 16:37:52,472 INFO L202 ElimStorePlain]: Needed 3 recursive calls to eliminate 4 variables, input treesize:28, output treesize:12 [2018-04-05 16:37:52,573 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-04-05 16:37:52,573 INFO L314 TraceCheckSpWp]: Computing backward predicates... [2018-04-05 16:37:52,844 INFO L267 ElimStorePlain]: Start of recursive call 1: End of recursive call: and 1 xjuncts. [2018-04-05 16:37:52,844 INFO L202 ElimStorePlain]: Needed 1 recursive calls to eliminate 5 variables, input treesize:25, output treesize:3 [2018-04-05 16:37:52,862 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-04-05 16:37:52,904 INFO L320 seRefinementStrategy]: Constructing automaton from 2 perfect and 0 imperfect interpolant sequences. [2018-04-05 16:37:52,904 INFO L335 seRefinementStrategy]: Number of different interpolants: perfect sequences [5, 5] imperfect sequences [] total 8 [2018-04-05 16:37:52,909 INFO L442 AbstractCegarLoop]: Interpolant automaton has 9 states [2018-04-05 16:37:52,909 INFO L132 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2018-04-05 16:37:52,909 INFO L133 InterpolantAutomaton]: CoverageRelationStatistics Valid=23, Invalid=49, Unknown=0, NotChecked=0, Total=72 [2018-04-05 16:37:52,910 INFO L87 Difference]: Start difference. First operand 88 states and 93 transitions. Second operand 9 states. [2018-04-05 16:37:53,258 WARN L148 SmtUtils]: Spent 104ms on a formula simplification that was a NOOP. DAG size: 21 [2018-04-05 16:37:53,648 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-04-05 16:37:53,648 INFO L93 Difference]: Finished difference Result 88 states and 93 transitions. [2018-04-05 16:37:53,652 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2018-04-05 16:37:53,652 INFO L78 Accepts]: Start accepts. Automaton has 9 states. Word has length 19 [2018-04-05 16:37:53,652 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-04-05 16:37:53,654 INFO L225 Difference]: With dead ends: 88 [2018-04-05 16:37:53,654 INFO L226 Difference]: Without dead ends: 87 [2018-04-05 16:37:53,655 INFO L567 BasicCegarLoop]: 0 DeclaredPredicates, 38 GetRequests, 30 SyntacticMatches, 0 SemanticMatches, 8 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 13 ImplicationChecksByTransitivity, 0.5s TimeCoverageRelationStatistics Valid=32, Invalid=58, Unknown=0, NotChecked=0, Total=90 [2018-04-05 16:37:53,656 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 87 states. [2018-04-05 16:37:53,684 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 87 to 87. [2018-04-05 16:37:53,685 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 87 states. [2018-04-05 16:37:53,691 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 87 states to 87 states and 92 transitions. [2018-04-05 16:37:53,692 INFO L78 Accepts]: Start accepts. Automaton has 87 states and 92 transitions. Word has length 19 [2018-04-05 16:37:53,692 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-04-05 16:37:53,692 INFO L459 AbstractCegarLoop]: Abstraction has 87 states and 92 transitions. [2018-04-05 16:37:53,693 INFO L460 AbstractCegarLoop]: Interpolant automaton has 9 states. [2018-04-05 16:37:53,693 INFO L276 IsEmpty]: Start isEmpty. Operand 87 states and 92 transitions. [2018-04-05 16:37:53,693 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 21 [2018-04-05 16:37:53,693 INFO L347 BasicCegarLoop]: Found error trace [2018-04-05 16:37:53,694 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] [2018-04-05 16:37:53,694 INFO L408 AbstractCegarLoop]: === Iteration 3 === [mainErr3RequiresViolation, mainErr1RequiresViolation, mainErr2RequiresViolation, mainErr4EnsuresViolationMEMORY_LEAK, mainErr0RequiresViolation, substringErr3RequiresViolation, substringErr1RequiresViolation, substringErr7RequiresViolation, substringErr9RequiresViolation, substringErr2RequiresViolation, substringErr8RequiresViolation, substringErr4RequiresViolation, substringErr6RequiresViolation, substringErr0RequiresViolation, substringErr5RequiresViolation]=== [2018-04-05 16:37:53,694 INFO L82 PathProgramCache]: Analyzing trace with hash -1080211127, now seen corresponding path program 1 times No working directory specified, using /storage/ultimate/releaseScripts/default/UAutomizer-linux/z3 Starting monitored process 4 with z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 4 with z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2018-04-05 16:37:53,777 INFO L68 tionRefinementEngine]: Using refinement strategy FixedRefinementStrategy [2018-04-05 16:37:53,845 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-04-05 16:37:53,847 INFO L270 TraceCheckSpWp]: Computing forward predicates... [2018-04-05 16:37:53,870 INFO L477 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 6 treesize of output 5 [2018-04-05 16:37:53,870 INFO L267 ElimStorePlain]: Start of recursive call 2: End of recursive call: and 1 xjuncts. [2018-04-05 16:37:53,878 INFO L267 ElimStorePlain]: Start of recursive call 1: 1 dim-1 vars, End of recursive call: and 1 xjuncts. [2018-04-05 16:37:53,879 INFO L202 ElimStorePlain]: Needed 2 recursive calls to eliminate 1 variables, input treesize:6, output treesize:5 [2018-04-05 16:37:53,918 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-04-05 16:37:53,918 INFO L314 TraceCheckSpWp]: Computing backward predicates... [2018-04-05 16:37:53,945 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-04-05 16:37:54,029 INFO L320 seRefinementStrategy]: Constructing automaton from 2 perfect and 0 imperfect interpolant sequences. [2018-04-05 16:37:54,029 INFO L335 seRefinementStrategy]: Number of different interpolants: perfect sequences [3, 3] imperfect sequences [] total 3 [2018-04-05 16:37:54,030 INFO L442 AbstractCegarLoop]: Interpolant automaton has 4 states [2018-04-05 16:37:54,030 INFO L132 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2018-04-05 16:37:54,030 INFO L133 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2018-04-05 16:37:54,030 INFO L87 Difference]: Start difference. First operand 87 states and 92 transitions. Second operand 4 states. [2018-04-05 16:37:54,299 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-04-05 16:37:54,299 INFO L93 Difference]: Finished difference Result 87 states and 92 transitions. [2018-04-05 16:37:54,305 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2018-04-05 16:37:54,305 INFO L78 Accepts]: Start accepts. Automaton has 4 states. Word has length 20 [2018-04-05 16:37:54,306 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-04-05 16:37:54,307 INFO L225 Difference]: With dead ends: 87 [2018-04-05 16:37:54,307 INFO L226 Difference]: Without dead ends: 86 [2018-04-05 16:37:54,308 INFO L567 BasicCegarLoop]: 0 DeclaredPredicates, 40 GetRequests, 37 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2018-04-05 16:37:54,308 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 86 states. [2018-04-05 16:37:54,337 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 86 to 86. [2018-04-05 16:37:54,337 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 86 states. [2018-04-05 16:37:54,339 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 86 states to 86 states and 91 transitions. [2018-04-05 16:37:54,339 INFO L78 Accepts]: Start accepts. Automaton has 86 states and 91 transitions. Word has length 20 [2018-04-05 16:37:54,339 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-04-05 16:37:54,340 INFO L459 AbstractCegarLoop]: Abstraction has 86 states and 91 transitions. [2018-04-05 16:37:54,340 INFO L460 AbstractCegarLoop]: Interpolant automaton has 4 states. [2018-04-05 16:37:54,340 INFO L276 IsEmpty]: Start isEmpty. Operand 86 states and 91 transitions. [2018-04-05 16:37:54,340 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 21 [2018-04-05 16:37:54,341 INFO L347 BasicCegarLoop]: Found error trace [2018-04-05 16:37:54,341 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] [2018-04-05 16:37:54,341 INFO L408 AbstractCegarLoop]: === Iteration 4 === [mainErr3RequiresViolation, mainErr1RequiresViolation, mainErr2RequiresViolation, mainErr4EnsuresViolationMEMORY_LEAK, mainErr0RequiresViolation, substringErr3RequiresViolation, substringErr1RequiresViolation, substringErr7RequiresViolation, substringErr9RequiresViolation, substringErr2RequiresViolation, substringErr8RequiresViolation, substringErr4RequiresViolation, substringErr6RequiresViolation, substringErr0RequiresViolation, substringErr5RequiresViolation]=== [2018-04-05 16:37:54,341 INFO L82 PathProgramCache]: Analyzing trace with hash -1080211126, now seen corresponding path program 1 times No working directory specified, using /storage/ultimate/releaseScripts/default/UAutomizer-linux/z3 Starting monitored process 5 with z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 5 with z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2018-04-05 16:37:54,373 INFO L68 tionRefinementEngine]: Using refinement strategy FixedRefinementStrategy [2018-04-05 16:37:54,435 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-04-05 16:37:54,437 INFO L270 TraceCheckSpWp]: Computing forward predicates... [2018-04-05 16:37:54,540 INFO L477 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 6 treesize of output 5 [2018-04-05 16:37:54,540 INFO L267 ElimStorePlain]: Start of recursive call 2: End of recursive call: and 1 xjuncts. [2018-04-05 16:37:54,573 INFO L267 ElimStorePlain]: Start of recursive call 1: 1 dim-1 vars, End of recursive call: and 1 xjuncts. [2018-04-05 16:37:54,574 INFO L202 ElimStorePlain]: Needed 2 recursive calls to eliminate 1 variables, input treesize:13, output treesize:12 [2018-04-05 16:37:54,716 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-04-05 16:37:54,716 INFO L314 TraceCheckSpWp]: Computing backward predicates... [2018-04-05 16:37:54,848 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-04-05 16:37:54,920 INFO L320 seRefinementStrategy]: Constructing automaton from 2 perfect and 0 imperfect interpolant sequences. [2018-04-05 16:37:54,920 INFO L335 seRefinementStrategy]: Number of different interpolants: perfect sequences [4, 4] imperfect sequences [] total 6 [2018-04-05 16:37:54,921 INFO L442 AbstractCegarLoop]: Interpolant automaton has 7 states [2018-04-05 16:37:54,921 INFO L132 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2018-04-05 16:37:54,921 INFO L133 InterpolantAutomaton]: CoverageRelationStatistics Valid=15, Invalid=27, Unknown=0, NotChecked=0, Total=42 [2018-04-05 16:37:54,922 INFO L87 Difference]: Start difference. First operand 86 states and 91 transitions. Second operand 7 states. [2018-04-05 16:37:55,429 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-04-05 16:37:55,429 INFO L93 Difference]: Finished difference Result 86 states and 91 transitions. [2018-04-05 16:37:55,429 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2018-04-05 16:37:55,430 INFO L78 Accepts]: Start accepts. Automaton has 7 states. Word has length 20 [2018-04-05 16:37:55,430 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-04-05 16:37:55,431 INFO L225 Difference]: With dead ends: 86 [2018-04-05 16:37:55,431 INFO L226 Difference]: Without dead ends: 85 [2018-04-05 16:37:55,432 INFO L567 BasicCegarLoop]: 0 DeclaredPredicates, 40 GetRequests, 34 SyntacticMatches, 0 SemanticMatches, 6 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 5 ImplicationChecksByTransitivity, 0.4s TimeCoverageRelationStatistics Valid=22, Invalid=34, Unknown=0, NotChecked=0, Total=56 [2018-04-05 16:37:55,432 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 85 states. [2018-04-05 16:37:55,451 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 85 to 85. [2018-04-05 16:37:55,451 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 85 states. [2018-04-05 16:37:55,453 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 85 states to 85 states and 90 transitions. [2018-04-05 16:37:55,453 INFO L78 Accepts]: Start accepts. Automaton has 85 states and 90 transitions. Word has length 20 [2018-04-05 16:37:55,453 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-04-05 16:37:55,453 INFO L459 AbstractCegarLoop]: Abstraction has 85 states and 90 transitions. [2018-04-05 16:37:55,454 INFO L460 AbstractCegarLoop]: Interpolant automaton has 7 states. [2018-04-05 16:37:55,457 INFO L276 IsEmpty]: Start isEmpty. Operand 85 states and 90 transitions. [2018-04-05 16:37:55,459 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 27 [2018-04-05 16:37:55,459 INFO L347 BasicCegarLoop]: Found error trace [2018-04-05 16:37:55,460 INFO L355 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2018-04-05 16:37:55,460 INFO L408 AbstractCegarLoop]: === Iteration 5 === [mainErr3RequiresViolation, mainErr1RequiresViolation, mainErr2RequiresViolation, mainErr4EnsuresViolationMEMORY_LEAK, mainErr0RequiresViolation, substringErr3RequiresViolation, substringErr1RequiresViolation, substringErr7RequiresViolation, substringErr9RequiresViolation, substringErr2RequiresViolation, substringErr8RequiresViolation, substringErr4RequiresViolation, substringErr6RequiresViolation, substringErr0RequiresViolation, substringErr5RequiresViolation]=== [2018-04-05 16:37:55,460 INFO L82 PathProgramCache]: Analyzing trace with hash 1212360915, now seen corresponding path program 1 times No working directory specified, using /storage/ultimate/releaseScripts/default/UAutomizer-linux/z3 Starting monitored process 6 with z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 6 with z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2018-04-05 16:37:55,507 INFO L68 tionRefinementEngine]: Using refinement strategy FixedRefinementStrategy [2018-04-05 16:37:55,554 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-04-05 16:37:55,556 INFO L270 TraceCheckSpWp]: Computing forward predicates... [2018-04-05 16:37:55,655 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-04-05 16:37:55,655 INFO L314 TraceCheckSpWp]: Computing backward predicates... [2018-04-05 16:37:55,681 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-04-05 16:37:55,726 INFO L320 seRefinementStrategy]: Constructing automaton from 2 perfect and 0 imperfect interpolant sequences. [2018-04-05 16:37:55,726 INFO L335 seRefinementStrategy]: Number of different interpolants: perfect sequences [5, 5] imperfect sequences [] total 5 [2018-04-05 16:37:55,726 INFO L442 AbstractCegarLoop]: Interpolant automaton has 6 states [2018-04-05 16:37:55,727 INFO L132 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2018-04-05 16:37:55,727 INFO L133 InterpolantAutomaton]: CoverageRelationStatistics Valid=9, Invalid=21, Unknown=0, NotChecked=0, Total=30 [2018-04-05 16:37:55,727 INFO L87 Difference]: Start difference. First operand 85 states and 90 transitions. Second operand 6 states. [2018-04-05 16:37:56,159 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-04-05 16:37:56,195 INFO L93 Difference]: Finished difference Result 89 states and 94 transitions. [2018-04-05 16:37:56,195 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2018-04-05 16:37:56,195 INFO L78 Accepts]: Start accepts. Automaton has 6 states. Word has length 26 [2018-04-05 16:37:56,196 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-04-05 16:37:56,197 INFO L225 Difference]: With dead ends: 89 [2018-04-05 16:37:56,197 INFO L226 Difference]: Without dead ends: 88 [2018-04-05 16:37:56,198 INFO L567 BasicCegarLoop]: 0 DeclaredPredicates, 53 GetRequests, 47 SyntacticMatches, 0 SemanticMatches, 6 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=19, Invalid=37, Unknown=0, NotChecked=0, Total=56 [2018-04-05 16:37:56,198 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 88 states. [2018-04-05 16:37:56,216 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 88 to 87. [2018-04-05 16:37:56,217 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 87 states. [2018-04-05 16:37:56,235 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 87 states to 87 states and 93 transitions. [2018-04-05 16:37:56,236 INFO L78 Accepts]: Start accepts. Automaton has 87 states and 93 transitions. Word has length 26 [2018-04-05 16:37:56,236 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-04-05 16:37:56,236 INFO L459 AbstractCegarLoop]: Abstraction has 87 states and 93 transitions. [2018-04-05 16:37:56,236 INFO L460 AbstractCegarLoop]: Interpolant automaton has 6 states. [2018-04-05 16:37:56,236 INFO L276 IsEmpty]: Start isEmpty. Operand 87 states and 93 transitions. [2018-04-05 16:37:56,237 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 27 [2018-04-05 16:37:56,237 INFO L347 BasicCegarLoop]: Found error trace [2018-04-05 16:37:56,237 INFO L355 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2018-04-05 16:37:56,238 INFO L408 AbstractCegarLoop]: === Iteration 6 === [mainErr3RequiresViolation, mainErr1RequiresViolation, mainErr2RequiresViolation, mainErr4EnsuresViolationMEMORY_LEAK, mainErr0RequiresViolation, substringErr3RequiresViolation, substringErr1RequiresViolation, substringErr7RequiresViolation, substringErr9RequiresViolation, substringErr2RequiresViolation, substringErr8RequiresViolation, substringErr4RequiresViolation, substringErr6RequiresViolation, substringErr0RequiresViolation, substringErr5RequiresViolation]=== [2018-04-05 16:37:56,242 INFO L82 PathProgramCache]: Analyzing trace with hash 1212360916, now seen corresponding path program 1 times No working directory specified, using /storage/ultimate/releaseScripts/default/UAutomizer-linux/z3 Starting monitored process 7 with z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 7 with z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2018-04-05 16:37:56,267 INFO L68 tionRefinementEngine]: Using refinement strategy FixedRefinementStrategy [2018-04-05 16:37:56,303 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-04-05 16:37:56,306 INFO L270 TraceCheckSpWp]: Computing forward predicates... [2018-04-05 16:37:56,658 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-04-05 16:37:56,658 INFO L314 TraceCheckSpWp]: Computing backward predicates... [2018-04-05 16:37:56,679 INFO L477 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 16 treesize of output 12 [2018-04-05 16:37:56,680 INFO L267 ElimStorePlain]: Start of recursive call 2: End of recursive call: and 1 xjuncts. [2018-04-05 16:37:56,719 INFO L477 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 12 treesize of output 10 [2018-04-05 16:37:56,720 INFO L267 ElimStorePlain]: Start of recursive call 3: End of recursive call: and 1 xjuncts. [2018-04-05 16:37:56,741 INFO L267 ElimStorePlain]: Start of recursive call 1: 2 dim-0 vars, 2 dim-1 vars, End of recursive call: and 2 xjuncts. [2018-04-05 16:37:56,742 INFO L202 ElimStorePlain]: Needed 3 recursive calls to eliminate 4 variables, input treesize:29, output treesize:7 [2018-04-05 16:37:56,877 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-04-05 16:37:56,925 INFO L320 seRefinementStrategy]: Constructing automaton from 2 perfect and 0 imperfect interpolant sequences. [2018-04-05 16:37:56,926 INFO L335 seRefinementStrategy]: Number of different interpolants: perfect sequences [8, 8] imperfect sequences [] total 8 [2018-04-05 16:37:56,926 INFO L442 AbstractCegarLoop]: Interpolant automaton has 9 states [2018-04-05 16:37:56,926 INFO L132 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2018-04-05 16:37:56,926 INFO L133 InterpolantAutomaton]: CoverageRelationStatistics Valid=17, Invalid=55, Unknown=0, NotChecked=0, Total=72 [2018-04-05 16:37:56,927 INFO L87 Difference]: Start difference. First operand 87 states and 93 transitions. Second operand 9 states. [2018-04-05 16:37:57,907 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-04-05 16:37:57,907 INFO L93 Difference]: Finished difference Result 88 states and 93 transitions. [2018-04-05 16:37:57,909 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 10 states. [2018-04-05 16:37:57,909 INFO L78 Accepts]: Start accepts. Automaton has 9 states. Word has length 26 [2018-04-05 16:37:57,910 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-04-05 16:37:57,911 INFO L225 Difference]: With dead ends: 88 [2018-04-05 16:37:57,911 INFO L226 Difference]: Without dead ends: 87 [2018-04-05 16:37:57,912 INFO L567 BasicCegarLoop]: 0 DeclaredPredicates, 56 GetRequests, 42 SyntacticMatches, 2 SemanticMatches, 12 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 20 ImplicationChecksByTransitivity, 0.9s TimeCoverageRelationStatistics Valid=45, Invalid=137, Unknown=0, NotChecked=0, Total=182 [2018-04-05 16:37:57,912 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 87 states. [2018-04-05 16:37:57,939 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 87 to 87. [2018-04-05 16:37:57,939 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 87 states. [2018-04-05 16:37:57,941 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 87 states to 87 states and 92 transitions. [2018-04-05 16:37:57,947 INFO L78 Accepts]: Start accepts. Automaton has 87 states and 92 transitions. Word has length 26 [2018-04-05 16:37:57,947 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-04-05 16:37:57,947 INFO L459 AbstractCegarLoop]: Abstraction has 87 states and 92 transitions. [2018-04-05 16:37:57,947 INFO L460 AbstractCegarLoop]: Interpolant automaton has 9 states. [2018-04-05 16:37:57,948 INFO L276 IsEmpty]: Start isEmpty. Operand 87 states and 92 transitions. [2018-04-05 16:37:57,949 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 33 [2018-04-05 16:37:57,949 INFO L347 BasicCegarLoop]: Found error trace [2018-04-05 16:37:57,949 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] [2018-04-05 16:37:57,949 INFO L408 AbstractCegarLoop]: === Iteration 7 === [mainErr3RequiresViolation, mainErr1RequiresViolation, mainErr2RequiresViolation, mainErr4EnsuresViolationMEMORY_LEAK, mainErr0RequiresViolation, substringErr3RequiresViolation, substringErr1RequiresViolation, substringErr7RequiresViolation, substringErr9RequiresViolation, substringErr2RequiresViolation, substringErr8RequiresViolation, substringErr4RequiresViolation, substringErr6RequiresViolation, substringErr0RequiresViolation, substringErr5RequiresViolation]=== [2018-04-05 16:37:57,949 INFO L82 PathProgramCache]: Analyzing trace with hash -1756922025, now seen corresponding path program 1 times No working directory specified, using /storage/ultimate/releaseScripts/default/UAutomizer-linux/z3 Starting monitored process 8 with z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 8 with z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2018-04-05 16:37:57,979 INFO L68 tionRefinementEngine]: Using refinement strategy FixedRefinementStrategy [2018-04-05 16:37:58,014 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-04-05 16:37:58,018 INFO L270 TraceCheckSpWp]: Computing forward predicates... [2018-04-05 16:37:58,104 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-04-05 16:37:58,105 INFO L314 TraceCheckSpWp]: Computing backward predicates... [2018-04-05 16:37:58,147 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-04-05 16:37:58,184 INFO L320 seRefinementStrategy]: Constructing automaton from 2 perfect and 0 imperfect interpolant sequences. [2018-04-05 16:37:58,185 INFO L335 seRefinementStrategy]: Number of different interpolants: perfect sequences [5, 5] imperfect sequences [] total 5 [2018-04-05 16:37:58,185 INFO L442 AbstractCegarLoop]: Interpolant automaton has 6 states [2018-04-05 16:37:58,185 INFO L132 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2018-04-05 16:37:58,186 INFO L133 InterpolantAutomaton]: CoverageRelationStatistics Valid=9, Invalid=21, Unknown=0, NotChecked=0, Total=30 [2018-04-05 16:37:58,186 INFO L87 Difference]: Start difference. First operand 87 states and 92 transitions. Second operand 6 states. [2018-04-05 16:37:58,610 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-04-05 16:37:58,610 INFO L93 Difference]: Finished difference Result 99 states and 105 transitions. [2018-04-05 16:37:58,611 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2018-04-05 16:37:58,611 INFO L78 Accepts]: Start accepts. Automaton has 6 states. Word has length 32 [2018-04-05 16:37:58,611 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-04-05 16:37:58,616 INFO L225 Difference]: With dead ends: 99 [2018-04-05 16:37:58,616 INFO L226 Difference]: Without dead ends: 96 [2018-04-05 16:37:58,617 INFO L567 BasicCegarLoop]: 0 DeclaredPredicates, 65 GetRequests, 59 SyntacticMatches, 0 SemanticMatches, 6 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=19, Invalid=37, Unknown=0, NotChecked=0, Total=56 [2018-04-05 16:37:58,617 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 96 states. [2018-04-05 16:37:58,629 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 96 to 87. [2018-04-05 16:37:58,629 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 87 states. [2018-04-05 16:37:58,630 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 87 states to 87 states and 93 transitions. [2018-04-05 16:37:58,630 INFO L78 Accepts]: Start accepts. Automaton has 87 states and 93 transitions. Word has length 32 [2018-04-05 16:37:58,631 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-04-05 16:37:58,631 INFO L459 AbstractCegarLoop]: Abstraction has 87 states and 93 transitions. [2018-04-05 16:37:58,631 INFO L460 AbstractCegarLoop]: Interpolant automaton has 6 states. [2018-04-05 16:37:58,631 INFO L276 IsEmpty]: Start isEmpty. Operand 87 states and 93 transitions. [2018-04-05 16:37:58,632 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 33 [2018-04-05 16:37:58,632 INFO L347 BasicCegarLoop]: Found error trace [2018-04-05 16:37:58,632 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] [2018-04-05 16:37:58,633 INFO L408 AbstractCegarLoop]: === Iteration 8 === [mainErr3RequiresViolation, mainErr1RequiresViolation, mainErr2RequiresViolation, mainErr4EnsuresViolationMEMORY_LEAK, mainErr0RequiresViolation, substringErr3RequiresViolation, substringErr1RequiresViolation, substringErr7RequiresViolation, substringErr9RequiresViolation, substringErr2RequiresViolation, substringErr8RequiresViolation, substringErr4RequiresViolation, substringErr6RequiresViolation, substringErr0RequiresViolation, substringErr5RequiresViolation]=== [2018-04-05 16:37:58,637 INFO L82 PathProgramCache]: Analyzing trace with hash -1756922024, now seen corresponding path program 1 times No working directory specified, using /storage/ultimate/releaseScripts/default/UAutomizer-linux/z3 Starting monitored process 9 with z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 9 with z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2018-04-05 16:37:58,661 INFO L68 tionRefinementEngine]: Using refinement strategy FixedRefinementStrategy [2018-04-05 16:37:58,714 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-04-05 16:37:58,718 INFO L270 TraceCheckSpWp]: Computing forward predicates... [2018-04-05 16:37:59,031 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-04-05 16:37:59,032 INFO L314 TraceCheckSpWp]: Computing backward predicates... [2018-04-05 16:37:59,079 INFO L477 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 12 treesize of output 10 [2018-04-05 16:37:59,079 INFO L267 ElimStorePlain]: Start of recursive call 2: End of recursive call: and 1 xjuncts. [2018-04-05 16:37:59,142 INFO L477 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 16 treesize of output 12 [2018-04-05 16:37:59,143 INFO L267 ElimStorePlain]: Start of recursive call 3: End of recursive call: and 1 xjuncts. [2018-04-05 16:37:59,172 INFO L267 ElimStorePlain]: Start of recursive call 1: 2 dim-0 vars, 2 dim-1 vars, End of recursive call: and 2 xjuncts. [2018-04-05 16:37:59,173 INFO L202 ElimStorePlain]: Needed 3 recursive calls to eliminate 4 variables, input treesize:29, output treesize:7 [2018-04-05 16:37:59,240 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-04-05 16:37:59,300 INFO L320 seRefinementStrategy]: Constructing automaton from 2 perfect and 0 imperfect interpolant sequences. [2018-04-05 16:37:59,300 INFO L335 seRefinementStrategy]: Number of different interpolants: perfect sequences [8, 8] imperfect sequences [] total 8 [2018-04-05 16:37:59,300 INFO L442 AbstractCegarLoop]: Interpolant automaton has 9 states [2018-04-05 16:37:59,301 INFO L132 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2018-04-05 16:37:59,301 INFO L133 InterpolantAutomaton]: CoverageRelationStatistics Valid=17, Invalid=55, Unknown=0, NotChecked=0, Total=72 [2018-04-05 16:37:59,301 INFO L87 Difference]: Start difference. First operand 87 states and 93 transitions. Second operand 9 states. [2018-04-05 16:38:00,071 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-04-05 16:38:00,071 INFO L93 Difference]: Finished difference Result 96 states and 102 transitions. [2018-04-05 16:38:00,072 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 10 states. [2018-04-05 16:38:00,072 INFO L78 Accepts]: Start accepts. Automaton has 9 states. Word has length 32 [2018-04-05 16:38:00,072 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-04-05 16:38:00,073 INFO L225 Difference]: With dead ends: 96 [2018-04-05 16:38:00,073 INFO L226 Difference]: Without dead ends: 93 [2018-04-05 16:38:00,074 INFO L567 BasicCegarLoop]: 0 DeclaredPredicates, 68 GetRequests, 54 SyntacticMatches, 2 SemanticMatches, 12 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 20 ImplicationChecksByTransitivity, 0.6s TimeCoverageRelationStatistics Valid=45, Invalid=137, Unknown=0, NotChecked=0, Total=182 [2018-04-05 16:38:00,074 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 93 states. [2018-04-05 16:38:00,091 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 93 to 85. [2018-04-05 16:38:00,092 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 85 states. [2018-04-05 16:38:00,093 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 85 states to 85 states and 90 transitions. [2018-04-05 16:38:00,093 INFO L78 Accepts]: Start accepts. Automaton has 85 states and 90 transitions. Word has length 32 [2018-04-05 16:38:00,093 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-04-05 16:38:00,094 INFO L459 AbstractCegarLoop]: Abstraction has 85 states and 90 transitions. [2018-04-05 16:38:00,094 INFO L460 AbstractCegarLoop]: Interpolant automaton has 9 states. [2018-04-05 16:38:00,094 INFO L276 IsEmpty]: Start isEmpty. Operand 85 states and 90 transitions. [2018-04-05 16:38:00,095 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 37 [2018-04-05 16:38:00,095 INFO L347 BasicCegarLoop]: Found error trace [2018-04-05 16:38:00,095 INFO L355 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2018-04-05 16:38:00,095 INFO L408 AbstractCegarLoop]: === Iteration 9 === [mainErr3RequiresViolation, mainErr1RequiresViolation, mainErr2RequiresViolation, mainErr4EnsuresViolationMEMORY_LEAK, mainErr0RequiresViolation, substringErr3RequiresViolation, substringErr1RequiresViolation, substringErr7RequiresViolation, substringErr9RequiresViolation, substringErr2RequiresViolation, substringErr8RequiresViolation, substringErr4RequiresViolation, substringErr6RequiresViolation, substringErr0RequiresViolation, substringErr5RequiresViolation]=== [2018-04-05 16:38:00,096 INFO L82 PathProgramCache]: Analyzing trace with hash -1638978851, now seen corresponding path program 1 times No working directory specified, using /storage/ultimate/releaseScripts/default/UAutomizer-linux/z3 Starting monitored process 10 with z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 10 with z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2018-04-05 16:38:00,121 INFO L68 tionRefinementEngine]: Using refinement strategy FixedRefinementStrategy [2018-04-05 16:38:00,168 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-04-05 16:38:00,172 INFO L270 TraceCheckSpWp]: Computing forward predicates... [2018-04-05 16:38:00,324 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-04-05 16:38:00,324 INFO L314 TraceCheckSpWp]: Computing backward predicates... [2018-04-05 16:38:00,350 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-04-05 16:38:00,411 INFO L320 seRefinementStrategy]: Constructing automaton from 2 perfect and 0 imperfect interpolant sequences. [2018-04-05 16:38:00,411 INFO L335 seRefinementStrategy]: Number of different interpolants: perfect sequences [6, 6] imperfect sequences [] total 6 [2018-04-05 16:38:00,411 INFO L442 AbstractCegarLoop]: Interpolant automaton has 7 states [2018-04-05 16:38:00,412 INFO L132 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2018-04-05 16:38:00,412 INFO L133 InterpolantAutomaton]: CoverageRelationStatistics Valid=11, Invalid=31, Unknown=0, NotChecked=0, Total=42 [2018-04-05 16:38:00,412 INFO L87 Difference]: Start difference. First operand 85 states and 90 transitions. Second operand 7 states. [2018-04-05 16:38:01,227 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-04-05 16:38:01,272 INFO L93 Difference]: Finished difference Result 124 states and 133 transitions. [2018-04-05 16:38:01,272 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2018-04-05 16:38:01,272 INFO L78 Accepts]: Start accepts. Automaton has 7 states. Word has length 36 [2018-04-05 16:38:01,273 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-04-05 16:38:01,274 INFO L225 Difference]: With dead ends: 124 [2018-04-05 16:38:01,274 INFO L226 Difference]: Without dead ends: 123 [2018-04-05 16:38:01,274 INFO L567 BasicCegarLoop]: 0 DeclaredPredicates, 75 GetRequests, 66 SyntacticMatches, 0 SemanticMatches, 9 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 2 ImplicationChecksByTransitivity, 0.3s TimeCoverageRelationStatistics Valid=36, Invalid=74, Unknown=0, NotChecked=0, Total=110 [2018-04-05 16:38:01,275 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 123 states. [2018-04-05 16:38:01,298 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 123 to 89. [2018-04-05 16:38:01,298 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 89 states. [2018-04-05 16:38:01,299 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 89 states to 89 states and 96 transitions. [2018-04-05 16:38:01,299 INFO L78 Accepts]: Start accepts. Automaton has 89 states and 96 transitions. Word has length 36 [2018-04-05 16:38:01,300 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-04-05 16:38:01,300 INFO L459 AbstractCegarLoop]: Abstraction has 89 states and 96 transitions. [2018-04-05 16:38:01,300 INFO L460 AbstractCegarLoop]: Interpolant automaton has 7 states. [2018-04-05 16:38:01,300 INFO L276 IsEmpty]: Start isEmpty. Operand 89 states and 96 transitions. [2018-04-05 16:38:01,311 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 37 [2018-04-05 16:38:01,311 INFO L347 BasicCegarLoop]: Found error trace [2018-04-05 16:38:01,311 INFO L355 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2018-04-05 16:38:01,311 INFO L408 AbstractCegarLoop]: === Iteration 10 === [mainErr3RequiresViolation, mainErr1RequiresViolation, mainErr2RequiresViolation, mainErr4EnsuresViolationMEMORY_LEAK, mainErr0RequiresViolation, substringErr3RequiresViolation, substringErr1RequiresViolation, substringErr7RequiresViolation, substringErr9RequiresViolation, substringErr2RequiresViolation, substringErr8RequiresViolation, substringErr4RequiresViolation, substringErr6RequiresViolation, substringErr0RequiresViolation, substringErr5RequiresViolation]=== [2018-04-05 16:38:01,311 INFO L82 PathProgramCache]: Analyzing trace with hash -1638978850, now seen corresponding path program 1 times No working directory specified, using /storage/ultimate/releaseScripts/default/UAutomizer-linux/z3 Starting monitored process 11 with z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 11 with z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2018-04-05 16:38:01,357 INFO L68 tionRefinementEngine]: Using refinement strategy FixedRefinementStrategy [2018-04-05 16:38:01,438 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-04-05 16:38:01,446 INFO L270 TraceCheckSpWp]: Computing forward predicates... [2018-04-05 16:38:01,778 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-04-05 16:38:01,781 INFO L314 TraceCheckSpWp]: Computing backward predicates... [2018-04-05 16:38:02,310 INFO L477 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 5 treesize of output 3 [2018-04-05 16:38:02,311 INFO L267 ElimStorePlain]: Start of recursive call 2: End of recursive call: and 1 xjuncts. [2018-04-05 16:38:02,325 INFO L267 ElimStorePlain]: Start of recursive call 1: 1 dim-0 vars, 1 dim-1 vars, End of recursive call: and 1 xjuncts. [2018-04-05 16:38:02,325 INFO L202 ElimStorePlain]: Needed 2 recursive calls to eliminate 2 variables, input treesize:9, output treesize:3 [2018-04-05 16:38:02,384 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-04-05 16:38:02,443 INFO L320 seRefinementStrategy]: Constructing automaton from 2 perfect and 0 imperfect interpolant sequences. [2018-04-05 16:38:02,443 INFO L335 seRefinementStrategy]: Number of different interpolants: perfect sequences [8, 8] imperfect sequences [] total 12 [2018-04-05 16:38:02,444 INFO L442 AbstractCegarLoop]: Interpolant automaton has 13 states [2018-04-05 16:38:02,444 INFO L132 InterpolantAutomaton]: Constructing interpolant automaton starting with 13 interpolants. [2018-04-05 16:38:02,444 INFO L133 InterpolantAutomaton]: CoverageRelationStatistics Valid=29, Invalid=127, Unknown=0, NotChecked=0, Total=156 [2018-04-05 16:38:02,444 INFO L87 Difference]: Start difference. First operand 89 states and 96 transitions. Second operand 13 states. [2018-04-05 16:38:03,468 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-04-05 16:38:03,468 INFO L93 Difference]: Finished difference Result 123 states and 132 transitions. [2018-04-05 16:38:03,469 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 10 states. [2018-04-05 16:38:03,469 INFO L78 Accepts]: Start accepts. Automaton has 13 states. Word has length 36 [2018-04-05 16:38:03,469 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-04-05 16:38:03,470 INFO L225 Difference]: With dead ends: 123 [2018-04-05 16:38:03,471 INFO L226 Difference]: Without dead ends: 122 [2018-04-05 16:38:03,471 INFO L567 BasicCegarLoop]: 0 DeclaredPredicates, 77 GetRequests, 59 SyntacticMatches, 1 SemanticMatches, 17 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 23 ImplicationChecksByTransitivity, 1.2s TimeCoverageRelationStatistics Valid=82, Invalid=260, Unknown=0, NotChecked=0, Total=342 [2018-04-05 16:38:03,472 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 122 states. [2018-04-05 16:38:03,486 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 122 to 89. [2018-04-05 16:38:03,486 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 89 states. [2018-04-05 16:38:03,487 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 89 states to 89 states and 95 transitions. [2018-04-05 16:38:03,487 INFO L78 Accepts]: Start accepts. Automaton has 89 states and 95 transitions. Word has length 36 [2018-04-05 16:38:03,488 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-04-05 16:38:03,488 INFO L459 AbstractCegarLoop]: Abstraction has 89 states and 95 transitions. [2018-04-05 16:38:03,488 INFO L460 AbstractCegarLoop]: Interpolant automaton has 13 states. [2018-04-05 16:38:03,488 INFO L276 IsEmpty]: Start isEmpty. Operand 89 states and 95 transitions. [2018-04-05 16:38:03,498 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 40 [2018-04-05 16:38:03,499 INFO L347 BasicCegarLoop]: Found error trace [2018-04-05 16:38:03,499 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] [2018-04-05 16:38:03,499 INFO L408 AbstractCegarLoop]: === Iteration 11 === [mainErr3RequiresViolation, mainErr1RequiresViolation, mainErr2RequiresViolation, mainErr4EnsuresViolationMEMORY_LEAK, mainErr0RequiresViolation, substringErr3RequiresViolation, substringErr1RequiresViolation, substringErr7RequiresViolation, substringErr9RequiresViolation, substringErr2RequiresViolation, substringErr8RequiresViolation, substringErr4RequiresViolation, substringErr6RequiresViolation, substringErr0RequiresViolation, substringErr5RequiresViolation]=== [2018-04-05 16:38:03,499 INFO L82 PathProgramCache]: Analyzing trace with hash 1140513306, now seen corresponding path program 1 times No working directory specified, using /storage/ultimate/releaseScripts/default/UAutomizer-linux/z3 Starting monitored process 12 with z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 12 with z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2018-04-05 16:38:03,519 INFO L68 tionRefinementEngine]: Using refinement strategy FixedRefinementStrategy [2018-04-05 16:38:03,558 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-04-05 16:38:03,563 INFO L270 TraceCheckSpWp]: Computing forward predicates... [2018-04-05 16:38:03,780 INFO L700 Elim1Store]: detected not equals via solver [2018-04-05 16:38:03,781 INFO L477 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 2 select indices, 2 select index equivalence classes, 2 disjoint index pairs (out of 1 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 20 treesize of output 21 [2018-04-05 16:38:03,791 INFO L700 Elim1Store]: detected not equals via solver [2018-04-05 16:38:03,792 INFO L477 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 2 select indices, 2 select index equivalence classes, 2 disjoint index pairs (out of 1 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 17 treesize of output 21 [2018-04-05 16:38:03,793 INFO L267 ElimStorePlain]: Start of recursive call 3: End of recursive call: and 1 xjuncts. [2018-04-05 16:38:03,825 INFO L267 ElimStorePlain]: Start of recursive call 2: 1 dim-1 vars, End of recursive call: and 1 xjuncts. [2018-04-05 16:38:03,864 INFO L267 ElimStorePlain]: Start of recursive call 1: 2 dim-0 vars, 1 dim-1 vars, End of recursive call: 2 dim-0 vars, and 1 xjuncts. [2018-04-05 16:38:03,864 INFO L202 ElimStorePlain]: Needed 3 recursive calls to eliminate 3 variables, input treesize:23, output treesize:15 [2018-04-05 16:38:04,039 WARN L1033 $PredicateComparison]: unable to prove that (exists ((|main_#t~malloc13.base| Int)) (let ((.cse0 (store |c_old(#valid)| |main_#t~malloc13.base| 1))) (and (= (select .cse0 |c_main_#t~malloc14.base|) 0) (= 0 (select |c_old(#valid)| |main_#t~malloc13.base|)) (= |c_#valid| (store (store .cse0 |c_main_#t~malloc14.base| 1) |main_#t~malloc13.base| 0))))) is different from true [2018-04-05 16:38:04,051 WARN L1033 $PredicateComparison]: unable to prove that (exists ((|main_#t~malloc13.base| Int) (|main_#t~malloc14.base| Int)) (let ((.cse0 (store |c_old(#valid)| |main_#t~malloc13.base| 1))) (and (= (select .cse0 |main_#t~malloc14.base|) 0) (= 0 (select |c_old(#valid)| |main_#t~malloc13.base|)) (= |c_#valid| (store (store (store .cse0 |main_#t~malloc14.base| 1) |main_#t~malloc13.base| 0) |main_#t~malloc14.base| 0))))) is different from true [2018-04-05 16:38:04,078 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-04-05 16:38:04,079 INFO L314 TraceCheckSpWp]: Computing backward predicates... [2018-04-05 16:38:04,196 WARN L1011 $PredicateComparison]: unable to prove that (forall ((|v_main_#t~malloc14.base_13| Int)) (or (not (= (select |c_#valid| |v_main_#t~malloc14.base_13|) 0)) (= |c_old(#valid)| (store (store (store |c_#valid| |v_main_#t~malloc14.base_13| 1) |c_main_#t~malloc13.base| 0) |v_main_#t~malloc14.base_13| 0)))) is different from false [2018-04-05 16:38:04,211 WARN L1011 $PredicateComparison]: unable to prove that (forall ((|v_main_#t~malloc14.base_13| Int) (|v_main_#t~malloc13.base_12| Int)) (let ((.cse0 (store |c_#valid| |v_main_#t~malloc13.base_12| 1))) (or (not (= (select |c_#valid| |v_main_#t~malloc13.base_12|) 0)) (not (= (select .cse0 |v_main_#t~malloc14.base_13|) 0)) (= (store (store (store .cse0 |v_main_#t~malloc14.base_13| 1) |v_main_#t~malloc13.base_12| 0) |v_main_#t~malloc14.base_13| 0) |c_old(#valid)|)))) is different from false [2018-04-05 16:38:04,289 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-04-05 16:38:04,357 INFO L320 seRefinementStrategy]: Constructing automaton from 2 perfect and 0 imperfect interpolant sequences. [2018-04-05 16:38:04,357 INFO L335 seRefinementStrategy]: Number of different interpolants: perfect sequences [7, 6] imperfect sequences [] total 11 [2018-04-05 16:38:04,358 INFO L442 AbstractCegarLoop]: Interpolant automaton has 12 states [2018-04-05 16:38:04,358 INFO L132 InterpolantAutomaton]: Constructing interpolant automaton starting with 12 interpolants. [2018-04-05 16:38:04,358 INFO L133 InterpolantAutomaton]: CoverageRelationStatistics Valid=23, Invalid=45, Unknown=4, NotChecked=60, Total=132 [2018-04-05 16:38:04,359 INFO L87 Difference]: Start difference. First operand 89 states and 95 transitions. Second operand 12 states. [2018-04-05 16:38:04,467 WARN L1011 $PredicateComparison]: unable to prove that (and (= |c_#valid| |c_old(#valid)|) (forall ((|v_main_#t~malloc14.base_13| Int) (|v_main_#t~malloc13.base_12| Int)) (let ((.cse0 (store |c_#valid| |v_main_#t~malloc13.base_12| 1))) (or (not (= (select |c_#valid| |v_main_#t~malloc13.base_12|) 0)) (not (= (select .cse0 |v_main_#t~malloc14.base_13|) 0)) (= (store (store (store .cse0 |v_main_#t~malloc14.base_13| 1) |v_main_#t~malloc13.base_12| 0) |v_main_#t~malloc14.base_13| 0) |c_old(#valid)|))))) is different from false [2018-04-05 16:38:06,433 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-04-05 16:38:06,473 INFO L93 Difference]: Finished difference Result 163 states and 174 transitions. [2018-04-05 16:38:06,473 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 11 states. [2018-04-05 16:38:06,473 INFO L78 Accepts]: Start accepts. Automaton has 12 states. Word has length 39 [2018-04-05 16:38:06,474 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-04-05 16:38:06,475 INFO L225 Difference]: With dead ends: 163 [2018-04-05 16:38:06,475 INFO L226 Difference]: Without dead ends: 148 [2018-04-05 16:38:06,476 INFO L567 BasicCegarLoop]: 0 DeclaredPredicates, 85 GetRequests, 67 SyntacticMatches, 2 SemanticMatches, 16 ConstructedPredicates, 5 IntricatePredicates, 0 DeprecatedPredicates, 12 ImplicationChecksByTransitivity, 0.9s TimeCoverageRelationStatistics Valid=45, Invalid=125, Unknown=6, NotChecked=130, Total=306 [2018-04-05 16:38:06,477 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 148 states. [2018-04-05 16:38:06,509 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 148 to 142. [2018-04-05 16:38:06,509 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 142 states. [2018-04-05 16:38:06,511 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 142 states to 142 states and 158 transitions. [2018-04-05 16:38:06,511 INFO L78 Accepts]: Start accepts. Automaton has 142 states and 158 transitions. Word has length 39 [2018-04-05 16:38:06,511 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-04-05 16:38:06,512 INFO L459 AbstractCegarLoop]: Abstraction has 142 states and 158 transitions. [2018-04-05 16:38:06,512 INFO L460 AbstractCegarLoop]: Interpolant automaton has 12 states. [2018-04-05 16:38:06,512 INFO L276 IsEmpty]: Start isEmpty. Operand 142 states and 158 transitions. [2018-04-05 16:38:06,523 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 41 [2018-04-05 16:38:06,523 INFO L347 BasicCegarLoop]: Found error trace [2018-04-05 16:38:06,523 INFO L355 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2018-04-05 16:38:06,523 INFO L408 AbstractCegarLoop]: === Iteration 12 === [mainErr3RequiresViolation, mainErr1RequiresViolation, mainErr2RequiresViolation, mainErr4EnsuresViolationMEMORY_LEAK, mainErr0RequiresViolation, substringErr3RequiresViolation, substringErr1RequiresViolation, substringErr7RequiresViolation, substringErr9RequiresViolation, substringErr2RequiresViolation, substringErr8RequiresViolation, substringErr4RequiresViolation, substringErr6RequiresViolation, substringErr0RequiresViolation, substringErr5RequiresViolation]=== [2018-04-05 16:38:06,523 INFO L82 PathProgramCache]: Analyzing trace with hash 816330566, now seen corresponding path program 1 times No working directory specified, using /storage/ultimate/releaseScripts/default/UAutomizer-linux/z3 Starting monitored process 13 with z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 13 with z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2018-04-05 16:38:06,561 INFO L68 tionRefinementEngine]: Using refinement strategy FixedRefinementStrategy [2018-04-05 16:38:06,594 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-04-05 16:38:06,598 INFO L270 TraceCheckSpWp]: Computing forward predicates... [2018-04-05 16:38:06,795 INFO L700 Elim1Store]: detected not equals via solver [2018-04-05 16:38:06,796 INFO L477 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 2 select indices, 2 select index equivalence classes, 2 disjoint index pairs (out of 1 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 20 treesize of output 27 [2018-04-05 16:38:06,810 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 23 treesize of output 15 [2018-04-05 16:38:06,811 INFO L267 ElimStorePlain]: Start of recursive call 3: End of recursive call: and 1 xjuncts. [2018-04-05 16:38:06,836 INFO L267 ElimStorePlain]: Start of recursive call 2: 1 dim-1 vars, End of recursive call: and 1 xjuncts. [2018-04-05 16:38:06,867 INFO L267 ElimStorePlain]: Start of recursive call 1: 2 dim-0 vars, 1 dim-1 vars, End of recursive call: 2 dim-0 vars, and 1 xjuncts. [2018-04-05 16:38:06,867 INFO L202 ElimStorePlain]: Needed 3 recursive calls to eliminate 3 variables, input treesize:23, output treesize:15 [2018-04-05 16:38:07,039 WARN L1033 $PredicateComparison]: unable to prove that (exists ((|main_#t~malloc13.base| Int)) (let ((.cse0 (store |c_old(#valid)| |main_#t~malloc13.base| 1))) (and (= (select .cse0 |c_main_#t~malloc14.base|) 0) (= 0 (select |c_old(#valid)| |main_#t~malloc13.base|)) (= |c_#valid| (store (store .cse0 |c_main_#t~malloc14.base| 1) |main_#t~malloc13.base| 0))))) is different from true [2018-04-05 16:38:07,056 WARN L1033 $PredicateComparison]: unable to prove that (exists ((|main_#t~malloc13.base| Int) (|main_#t~malloc14.base| Int)) (let ((.cse0 (store |c_old(#valid)| |main_#t~malloc13.base| 1))) (and (= (select .cse0 |main_#t~malloc14.base|) 0) (= 0 (select |c_old(#valid)| |main_#t~malloc13.base|)) (= |c_#valid| (store (store (store .cse0 |main_#t~malloc14.base| 1) |main_#t~malloc13.base| 0) |main_#t~malloc14.base| 0))))) is different from true [2018-04-05 16:38:07,068 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-04-05 16:38:07,068 INFO L314 TraceCheckSpWp]: Computing backward predicates... [2018-04-05 16:38:07,170 WARN L1011 $PredicateComparison]: unable to prove that (forall ((|v_main_#t~malloc14.base_15| Int)) (or (= |c_old(#valid)| (store (store (store |c_#valid| |v_main_#t~malloc14.base_15| 1) |c_main_#t~malloc13.base| 0) |v_main_#t~malloc14.base_15| 0)) (not (= (select |c_#valid| |v_main_#t~malloc14.base_15|) 0)))) is different from false [2018-04-05 16:38:07,181 WARN L1011 $PredicateComparison]: unable to prove that (forall ((|v_main_#t~malloc13.base_14| Int) (|v_main_#t~malloc14.base_15| Int)) (let ((.cse0 (store |c_#valid| |v_main_#t~malloc13.base_14| 1))) (or (not (= (select .cse0 |v_main_#t~malloc14.base_15|) 0)) (= (store (store (store .cse0 |v_main_#t~malloc14.base_15| 1) |v_main_#t~malloc13.base_14| 0) |v_main_#t~malloc14.base_15| 0) |c_old(#valid)|) (not (= (select |c_#valid| |v_main_#t~malloc13.base_14|) 0))))) is different from false [2018-04-05 16:38:07,252 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-04-05 16:38:07,318 INFO L320 seRefinementStrategy]: Constructing automaton from 2 perfect and 0 imperfect interpolant sequences. [2018-04-05 16:38:07,319 INFO L335 seRefinementStrategy]: Number of different interpolants: perfect sequences [7, 6] imperfect sequences [] total 11 [2018-04-05 16:38:07,319 INFO L442 AbstractCegarLoop]: Interpolant automaton has 12 states [2018-04-05 16:38:07,319 INFO L132 InterpolantAutomaton]: Constructing interpolant automaton starting with 12 interpolants. [2018-04-05 16:38:07,319 INFO L133 InterpolantAutomaton]: CoverageRelationStatistics Valid=23, Invalid=45, Unknown=4, NotChecked=60, Total=132 [2018-04-05 16:38:07,320 INFO L87 Difference]: Start difference. First operand 142 states and 158 transitions. Second operand 12 states. [2018-04-05 16:38:07,371 WARN L1011 $PredicateComparison]: unable to prove that (and (= |c_#valid| |c_old(#valid)|) (forall ((|v_main_#t~malloc13.base_14| Int) (|v_main_#t~malloc14.base_15| Int)) (let ((.cse0 (store |c_#valid| |v_main_#t~malloc13.base_14| 1))) (or (not (= (select .cse0 |v_main_#t~malloc14.base_15|) 0)) (= (store (store (store .cse0 |v_main_#t~malloc14.base_15| 1) |v_main_#t~malloc13.base_14| 0) |v_main_#t~malloc14.base_15| 0) |c_old(#valid)|) (not (= (select |c_#valid| |v_main_#t~malloc13.base_14|) 0)))))) is different from false [2018-04-05 16:38:09,697 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-04-05 16:38:09,697 INFO L93 Difference]: Finished difference Result 216 states and 236 transitions. [2018-04-05 16:38:09,698 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 11 states. [2018-04-05 16:38:09,698 INFO L78 Accepts]: Start accepts. Automaton has 12 states. Word has length 40 [2018-04-05 16:38:09,698 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-04-05 16:38:09,700 INFO L225 Difference]: With dead ends: 216 [2018-04-05 16:38:09,700 INFO L226 Difference]: Without dead ends: 201 [2018-04-05 16:38:09,701 INFO L567 BasicCegarLoop]: 0 DeclaredPredicates, 87 GetRequests, 69 SyntacticMatches, 2 SemanticMatches, 16 ConstructedPredicates, 5 IntricatePredicates, 0 DeprecatedPredicates, 12 ImplicationChecksByTransitivity, 0.7s TimeCoverageRelationStatistics Valid=45, Invalid=125, Unknown=6, NotChecked=130, Total=306 [2018-04-05 16:38:09,701 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 201 states. [2018-04-05 16:38:09,736 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 201 to 143. [2018-04-05 16:38:09,736 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 143 states. [2018-04-05 16:38:09,738 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 143 states to 143 states and 159 transitions. [2018-04-05 16:38:09,738 INFO L78 Accepts]: Start accepts. Automaton has 143 states and 159 transitions. Word has length 40 [2018-04-05 16:38:09,738 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-04-05 16:38:09,739 INFO L459 AbstractCegarLoop]: Abstraction has 143 states and 159 transitions. [2018-04-05 16:38:09,754 INFO L460 AbstractCegarLoop]: Interpolant automaton has 12 states. [2018-04-05 16:38:09,754 INFO L276 IsEmpty]: Start isEmpty. Operand 143 states and 159 transitions. [2018-04-05 16:38:09,755 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 41 [2018-04-05 16:38:09,755 INFO L347 BasicCegarLoop]: Found error trace [2018-04-05 16:38:09,755 INFO L355 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2018-04-05 16:38:09,756 INFO L408 AbstractCegarLoop]: === Iteration 13 === [mainErr3RequiresViolation, mainErr1RequiresViolation, mainErr2RequiresViolation, mainErr4EnsuresViolationMEMORY_LEAK, mainErr0RequiresViolation, substringErr3RequiresViolation, substringErr1RequiresViolation, substringErr7RequiresViolation, substringErr9RequiresViolation, substringErr2RequiresViolation, substringErr8RequiresViolation, substringErr4RequiresViolation, substringErr6RequiresViolation, substringErr0RequiresViolation, substringErr5RequiresViolation]=== [2018-04-05 16:38:09,756 INFO L82 PathProgramCache]: Analyzing trace with hash 167863009, now seen corresponding path program 1 times No working directory specified, using /storage/ultimate/releaseScripts/default/UAutomizer-linux/z3 Starting monitored process 14 with z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 14 with z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2018-04-05 16:38:09,784 INFO L68 tionRefinementEngine]: Using refinement strategy FixedRefinementStrategy [2018-04-05 16:38:09,833 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-04-05 16:38:09,839 INFO L270 TraceCheckSpWp]: Computing forward predicates... [2018-04-05 16:38:10,015 INFO L700 Elim1Store]: detected not equals via solver [2018-04-05 16:38:10,016 INFO L477 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 2 select indices, 2 select index equivalence classes, 2 disjoint index pairs (out of 1 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 20 treesize of output 27 [2018-04-05 16:38:10,033 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 23 treesize of output 15 [2018-04-05 16:38:10,033 INFO L267 ElimStorePlain]: Start of recursive call 3: End of recursive call: and 1 xjuncts. [2018-04-05 16:38:10,060 INFO L267 ElimStorePlain]: Start of recursive call 2: 1 dim-1 vars, End of recursive call: and 1 xjuncts. [2018-04-05 16:38:10,103 INFO L267 ElimStorePlain]: Start of recursive call 1: 2 dim-0 vars, 1 dim-1 vars, End of recursive call: 2 dim-0 vars, and 1 xjuncts. [2018-04-05 16:38:10,103 INFO L202 ElimStorePlain]: Needed 3 recursive calls to eliminate 3 variables, input treesize:23, output treesize:15 [2018-04-05 16:38:10,180 WARN L1033 $PredicateComparison]: unable to prove that (exists ((|main_#t~malloc13.base| Int)) (let ((.cse0 (store |c_old(#valid)| |main_#t~malloc13.base| 1))) (and (= (select .cse0 |c_main_#t~malloc14.base|) 0) (= 0 (select |c_old(#valid)| |main_#t~malloc13.base|)) (= |c_#valid| (store (store .cse0 |c_main_#t~malloc14.base| 1) |main_#t~malloc13.base| 0))))) is different from true [2018-04-05 16:38:10,190 WARN L1033 $PredicateComparison]: unable to prove that (exists ((|main_#t~malloc13.base| Int) (|main_#t~malloc14.base| Int)) (let ((.cse0 (store |c_old(#valid)| |main_#t~malloc13.base| 1))) (and (= (select .cse0 |main_#t~malloc14.base|) 0) (= 0 (select |c_old(#valid)| |main_#t~malloc13.base|)) (= |c_#valid| (store (store (store .cse0 |main_#t~malloc14.base| 1) |main_#t~malloc13.base| 0) |main_#t~malloc14.base| 0))))) is different from true [2018-04-05 16:38:10,202 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-04-05 16:38:10,202 INFO L314 TraceCheckSpWp]: Computing backward predicates... [2018-04-05 16:38:10,327 WARN L1011 $PredicateComparison]: unable to prove that (forall ((|v_main_#t~malloc14.base_17| Int)) (or (not (= (select |c_#valid| |v_main_#t~malloc14.base_17|) 0)) (= |c_old(#valid)| (store (store (store |c_#valid| |v_main_#t~malloc14.base_17| 1) |c_main_#t~malloc13.base| 0) |v_main_#t~malloc14.base_17| 0)))) is different from false [2018-04-05 16:38:10,335 WARN L1011 $PredicateComparison]: unable to prove that (forall ((|v_main_#t~malloc13.base_16| Int) (|v_main_#t~malloc14.base_17| Int)) (let ((.cse0 (store |c_#valid| |v_main_#t~malloc13.base_16| 1))) (or (= |c_old(#valid)| (store (store (store .cse0 |v_main_#t~malloc14.base_17| 1) |v_main_#t~malloc13.base_16| 0) |v_main_#t~malloc14.base_17| 0)) (not (= 0 (select |c_#valid| |v_main_#t~malloc13.base_16|))) (not (= (select .cse0 |v_main_#t~malloc14.base_17|) 0))))) is different from false [2018-04-05 16:38:10,394 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-04-05 16:38:10,431 INFO L320 seRefinementStrategy]: Constructing automaton from 2 perfect and 0 imperfect interpolant sequences. [2018-04-05 16:38:10,431 INFO L335 seRefinementStrategy]: Number of different interpolants: perfect sequences [7, 6] imperfect sequences [] total 11 [2018-04-05 16:38:10,431 INFO L442 AbstractCegarLoop]: Interpolant automaton has 12 states [2018-04-05 16:38:10,431 INFO L132 InterpolantAutomaton]: Constructing interpolant automaton starting with 12 interpolants. [2018-04-05 16:38:10,432 INFO L133 InterpolantAutomaton]: CoverageRelationStatistics Valid=23, Invalid=45, Unknown=4, NotChecked=60, Total=132 [2018-04-05 16:38:10,432 INFO L87 Difference]: Start difference. First operand 143 states and 159 transitions. Second operand 12 states. [2018-04-05 16:38:10,477 WARN L1011 $PredicateComparison]: unable to prove that (and (= |c_#valid| |c_old(#valid)|) (forall ((|v_main_#t~malloc13.base_16| Int) (|v_main_#t~malloc14.base_17| Int)) (let ((.cse0 (store |c_#valid| |v_main_#t~malloc13.base_16| 1))) (or (= |c_old(#valid)| (store (store (store .cse0 |v_main_#t~malloc14.base_17| 1) |v_main_#t~malloc13.base_16| 0) |v_main_#t~malloc14.base_17| 0)) (not (= 0 (select |c_#valid| |v_main_#t~malloc13.base_16|))) (not (= (select .cse0 |v_main_#t~malloc14.base_17|) 0)))))) is different from false [2018-04-05 16:38:12,814 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-04-05 16:38:12,814 INFO L93 Difference]: Finished difference Result 216 states and 236 transitions. [2018-04-05 16:38:12,815 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 11 states. [2018-04-05 16:38:12,815 INFO L78 Accepts]: Start accepts. Automaton has 12 states. Word has length 40 [2018-04-05 16:38:12,815 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-04-05 16:38:12,817 INFO L225 Difference]: With dead ends: 216 [2018-04-05 16:38:12,817 INFO L226 Difference]: Without dead ends: 201 [2018-04-05 16:38:12,818 INFO L567 BasicCegarLoop]: 0 DeclaredPredicates, 87 GetRequests, 69 SyntacticMatches, 2 SemanticMatches, 16 ConstructedPredicates, 5 IntricatePredicates, 0 DeprecatedPredicates, 12 ImplicationChecksByTransitivity, 0.6s TimeCoverageRelationStatistics Valid=45, Invalid=125, Unknown=6, NotChecked=130, Total=306 [2018-04-05 16:38:12,818 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 201 states. [2018-04-05 16:38:12,854 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 201 to 143. [2018-04-05 16:38:12,855 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 143 states. [2018-04-05 16:38:12,858 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 143 states to 143 states and 159 transitions. [2018-04-05 16:38:12,859 INFO L78 Accepts]: Start accepts. Automaton has 143 states and 159 transitions. Word has length 40 [2018-04-05 16:38:12,859 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-04-05 16:38:12,859 INFO L459 AbstractCegarLoop]: Abstraction has 143 states and 159 transitions. [2018-04-05 16:38:12,859 INFO L460 AbstractCegarLoop]: Interpolant automaton has 12 states. [2018-04-05 16:38:12,859 INFO L276 IsEmpty]: Start isEmpty. Operand 143 states and 159 transitions. [2018-04-05 16:38:12,860 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 42 [2018-04-05 16:38:12,860 INFO L347 BasicCegarLoop]: Found error trace [2018-04-05 16:38:12,861 INFO L355 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2018-04-05 16:38:12,871 INFO L408 AbstractCegarLoop]: === Iteration 14 === [mainErr3RequiresViolation, mainErr1RequiresViolation, mainErr2RequiresViolation, mainErr4EnsuresViolationMEMORY_LEAK, mainErr0RequiresViolation, substringErr3RequiresViolation, substringErr1RequiresViolation, substringErr7RequiresViolation, substringErr9RequiresViolation, substringErr2RequiresViolation, substringErr8RequiresViolation, substringErr4RequiresViolation, substringErr6RequiresViolation, substringErr0RequiresViolation, substringErr5RequiresViolation]=== [2018-04-05 16:38:12,872 INFO L82 PathProgramCache]: Analyzing trace with hash 728942431, now seen corresponding path program 1 times No working directory specified, using /storage/ultimate/releaseScripts/default/UAutomizer-linux/z3 Starting monitored process 15 with z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 15 with z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2018-04-05 16:38:12,898 INFO L68 tionRefinementEngine]: Using refinement strategy FixedRefinementStrategy [2018-04-05 16:38:12,961 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-04-05 16:38:12,968 INFO L270 TraceCheckSpWp]: Computing forward predicates... [2018-04-05 16:38:13,150 INFO L700 Elim1Store]: detected not equals via solver [2018-04-05 16:38:13,151 INFO L477 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 2 select indices, 2 select index equivalence classes, 2 disjoint index pairs (out of 1 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 20 treesize of output 27 [2018-04-05 16:38:13,163 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 23 treesize of output 15 [2018-04-05 16:38:13,163 INFO L267 ElimStorePlain]: Start of recursive call 3: End of recursive call: and 1 xjuncts. [2018-04-05 16:38:13,194 INFO L267 ElimStorePlain]: Start of recursive call 2: 1 dim-1 vars, End of recursive call: and 1 xjuncts. [2018-04-05 16:38:13,229 INFO L267 ElimStorePlain]: Start of recursive call 1: 2 dim-0 vars, 1 dim-1 vars, End of recursive call: 2 dim-0 vars, and 1 xjuncts. [2018-04-05 16:38:13,229 INFO L202 ElimStorePlain]: Needed 3 recursive calls to eliminate 3 variables, input treesize:23, output treesize:15 [2018-04-05 16:38:13,308 WARN L1033 $PredicateComparison]: unable to prove that (exists ((|main_#t~malloc13.base| Int)) (let ((.cse0 (store |c_old(#valid)| |main_#t~malloc13.base| 1))) (and (= (select .cse0 |c_main_#t~malloc14.base|) 0) (= 0 (select |c_old(#valid)| |main_#t~malloc13.base|)) (= |c_#valid| (store (store .cse0 |c_main_#t~malloc14.base| 1) |main_#t~malloc13.base| 0))))) is different from true [2018-04-05 16:38:13,333 WARN L1033 $PredicateComparison]: unable to prove that (exists ((|main_#t~malloc13.base| Int) (|main_#t~malloc14.base| Int)) (let ((.cse0 (store |c_old(#valid)| |main_#t~malloc13.base| 1))) (and (= (select .cse0 |main_#t~malloc14.base|) 0) (= 0 (select |c_old(#valid)| |main_#t~malloc13.base|)) (= |c_#valid| (store (store (store .cse0 |main_#t~malloc14.base| 1) |main_#t~malloc13.base| 0) |main_#t~malloc14.base| 0))))) is different from true [2018-04-05 16:38:13,341 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-04-05 16:38:13,341 INFO L314 TraceCheckSpWp]: Computing backward predicates... [2018-04-05 16:38:13,452 WARN L1011 $PredicateComparison]: unable to prove that (forall ((|v_main_#t~malloc14.base_19| Int)) (or (= |c_old(#valid)| (store (store (store |c_#valid| |v_main_#t~malloc14.base_19| 1) |c_main_#t~malloc13.base| 0) |v_main_#t~malloc14.base_19| 0)) (not (= 0 (select |c_#valid| |v_main_#t~malloc14.base_19|))))) is different from false [2018-04-05 16:38:13,479 WARN L1011 $PredicateComparison]: unable to prove that (forall ((|v_main_#t~malloc14.base_19| Int) (|v_main_#t~malloc13.base_18| Int)) (let ((.cse0 (store |c_#valid| |v_main_#t~malloc13.base_18| 1))) (or (= (store (store (store .cse0 |v_main_#t~malloc14.base_19| 1) |v_main_#t~malloc13.base_18| 0) |v_main_#t~malloc14.base_19| 0) |c_old(#valid)|) (not (= 0 (select .cse0 |v_main_#t~malloc14.base_19|))) (not (= (select |c_#valid| |v_main_#t~malloc13.base_18|) 0))))) is different from false [2018-04-05 16:38:13,562 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-04-05 16:38:13,599 INFO L320 seRefinementStrategy]: Constructing automaton from 2 perfect and 0 imperfect interpolant sequences. [2018-04-05 16:38:13,599 INFO L335 seRefinementStrategy]: Number of different interpolants: perfect sequences [7, 6] imperfect sequences [] total 11 [2018-04-05 16:38:13,600 INFO L442 AbstractCegarLoop]: Interpolant automaton has 12 states [2018-04-05 16:38:13,600 INFO L132 InterpolantAutomaton]: Constructing interpolant automaton starting with 12 interpolants. [2018-04-05 16:38:13,600 INFO L133 InterpolantAutomaton]: CoverageRelationStatistics Valid=23, Invalid=45, Unknown=4, NotChecked=60, Total=132 [2018-04-05 16:38:13,600 INFO L87 Difference]: Start difference. First operand 143 states and 159 transitions. Second operand 12 states. [2018-04-05 16:38:13,648 WARN L1011 $PredicateComparison]: unable to prove that (and (forall ((|v_main_#t~malloc14.base_19| Int) (|v_main_#t~malloc13.base_18| Int)) (let ((.cse0 (store |c_#valid| |v_main_#t~malloc13.base_18| 1))) (or (= (store (store (store .cse0 |v_main_#t~malloc14.base_19| 1) |v_main_#t~malloc13.base_18| 0) |v_main_#t~malloc14.base_19| 0) |c_old(#valid)|) (not (= 0 (select .cse0 |v_main_#t~malloc14.base_19|))) (not (= (select |c_#valid| |v_main_#t~malloc13.base_18|) 0))))) (= |c_#valid| |c_old(#valid)|)) is different from false [2018-04-05 16:38:15,753 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-04-05 16:38:15,753 INFO L93 Difference]: Finished difference Result 149 states and 159 transitions. [2018-04-05 16:38:15,754 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 11 states. [2018-04-05 16:38:15,754 INFO L78 Accepts]: Start accepts. Automaton has 12 states. Word has length 41 [2018-04-05 16:38:15,754 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-04-05 16:38:15,755 INFO L225 Difference]: With dead ends: 149 [2018-04-05 16:38:15,755 INFO L226 Difference]: Without dead ends: 134 [2018-04-05 16:38:15,756 INFO L567 BasicCegarLoop]: 0 DeclaredPredicates, 89 GetRequests, 71 SyntacticMatches, 2 SemanticMatches, 16 ConstructedPredicates, 5 IntricatePredicates, 0 DeprecatedPredicates, 12 ImplicationChecksByTransitivity, 0.7s TimeCoverageRelationStatistics Valid=45, Invalid=125, Unknown=6, NotChecked=130, Total=306 [2018-04-05 16:38:15,756 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 134 states. [2018-04-05 16:38:15,807 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 134 to 74. [2018-04-05 16:38:15,807 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 74 states. [2018-04-05 16:38:15,808 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 74 states to 74 states and 79 transitions. [2018-04-05 16:38:15,809 INFO L78 Accepts]: Start accepts. Automaton has 74 states and 79 transitions. Word has length 41 [2018-04-05 16:38:15,809 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-04-05 16:38:15,809 INFO L459 AbstractCegarLoop]: Abstraction has 74 states and 79 transitions. [2018-04-05 16:38:15,809 INFO L460 AbstractCegarLoop]: Interpolant automaton has 12 states. [2018-04-05 16:38:15,809 INFO L276 IsEmpty]: Start isEmpty. Operand 74 states and 79 transitions. [2018-04-05 16:38:15,810 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 48 [2018-04-05 16:38:15,810 INFO L347 BasicCegarLoop]: Found error trace [2018-04-05 16:38:15,810 INFO L355 BasicCegarLoop]: trace histogram [2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2018-04-05 16:38:15,810 INFO L408 AbstractCegarLoop]: === Iteration 15 === [mainErr3RequiresViolation, mainErr1RequiresViolation, mainErr2RequiresViolation, mainErr4EnsuresViolationMEMORY_LEAK, mainErr0RequiresViolation, substringErr3RequiresViolation, substringErr1RequiresViolation, substringErr7RequiresViolation, substringErr9RequiresViolation, substringErr2RequiresViolation, substringErr8RequiresViolation, substringErr4RequiresViolation, substringErr6RequiresViolation, substringErr0RequiresViolation, substringErr5RequiresViolation]=== [2018-04-05 16:38:15,815 INFO L82 PathProgramCache]: Analyzing trace with hash -2128226393, now seen corresponding path program 1 times No working directory specified, using /storage/ultimate/releaseScripts/default/UAutomizer-linux/z3 Starting monitored process 16 with z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 16 with z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2018-04-05 16:38:15,872 INFO L68 tionRefinementEngine]: Using refinement strategy FixedRefinementStrategy [2018-04-05 16:38:15,911 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-04-05 16:38:15,913 INFO L270 TraceCheckSpWp]: Computing forward predicates... [2018-04-05 16:38:15,950 INFO L134 CoverageAnalysis]: Checked inductivity of 2 backedges. 2 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-04-05 16:38:15,951 INFO L314 TraceCheckSpWp]: Computing backward predicates... [2018-04-05 16:38:16,001 INFO L134 CoverageAnalysis]: Checked inductivity of 2 backedges. 2 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-04-05 16:38:16,038 INFO L320 seRefinementStrategy]: Constructing automaton from 2 perfect and 0 imperfect interpolant sequences. [2018-04-05 16:38:16,038 INFO L335 seRefinementStrategy]: Number of different interpolants: perfect sequences [3, 3] imperfect sequences [] total 3 [2018-04-05 16:38:16,039 INFO L442 AbstractCegarLoop]: Interpolant automaton has 3 states [2018-04-05 16:38:16,039 INFO L132 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2018-04-05 16:38:16,039 INFO L133 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2018-04-05 16:38:16,039 INFO L87 Difference]: Start difference. First operand 74 states and 79 transitions. Second operand 3 states. [2018-04-05 16:38:16,094 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-04-05 16:38:16,094 INFO L93 Difference]: Finished difference Result 121 states and 130 transitions. [2018-04-05 16:38:16,102 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2018-04-05 16:38:16,103 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 47 [2018-04-05 16:38:16,103 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-04-05 16:38:16,103 INFO L225 Difference]: With dead ends: 121 [2018-04-05 16:38:16,103 INFO L226 Difference]: Without dead ends: 75 [2018-04-05 16:38:16,104 INFO L567 BasicCegarLoop]: 0 DeclaredPredicates, 93 GetRequests, 92 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2018-04-05 16:38:16,104 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 75 states. [2018-04-05 16:38:16,117 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 75 to 75. [2018-04-05 16:38:16,118 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 75 states. [2018-04-05 16:38:16,118 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 75 states to 75 states and 80 transitions. [2018-04-05 16:38:16,119 INFO L78 Accepts]: Start accepts. Automaton has 75 states and 80 transitions. Word has length 47 [2018-04-05 16:38:16,119 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-04-05 16:38:16,119 INFO L459 AbstractCegarLoop]: Abstraction has 75 states and 80 transitions. [2018-04-05 16:38:16,119 INFO L460 AbstractCegarLoop]: Interpolant automaton has 3 states. [2018-04-05 16:38:16,119 INFO L276 IsEmpty]: Start isEmpty. Operand 75 states and 80 transitions. [2018-04-05 16:38:16,124 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 48 [2018-04-05 16:38:16,125 INFO L347 BasicCegarLoop]: Found error trace [2018-04-05 16:38:16,125 INFO L355 BasicCegarLoop]: trace histogram [2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2018-04-05 16:38:16,125 INFO L408 AbstractCegarLoop]: === Iteration 16 === [mainErr3RequiresViolation, mainErr1RequiresViolation, mainErr2RequiresViolation, mainErr4EnsuresViolationMEMORY_LEAK, mainErr0RequiresViolation, substringErr3RequiresViolation, substringErr1RequiresViolation, substringErr7RequiresViolation, substringErr9RequiresViolation, substringErr2RequiresViolation, substringErr8RequiresViolation, substringErr4RequiresViolation, substringErr6RequiresViolation, substringErr0RequiresViolation, substringErr5RequiresViolation]=== [2018-04-05 16:38:16,125 INFO L82 PathProgramCache]: Analyzing trace with hash 482289896, now seen corresponding path program 1 times No working directory specified, using /storage/ultimate/releaseScripts/default/UAutomizer-linux/z3 Starting monitored process 17 with z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 17 with z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2018-04-05 16:38:16,156 INFO L68 tionRefinementEngine]: Using refinement strategy FixedRefinementStrategy [2018-04-05 16:38:16,207 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-04-05 16:38:16,210 INFO L270 TraceCheckSpWp]: Computing forward predicates... [2018-04-05 16:38:16,348 INFO L477 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 0 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 15 treesize of output 11 [2018-04-05 16:38:16,359 INFO L477 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 11 treesize of output 3 [2018-04-05 16:38:16,359 INFO L267 ElimStorePlain]: Start of recursive call 3: End of recursive call: and 1 xjuncts. [2018-04-05 16:38:16,372 INFO L267 ElimStorePlain]: Start of recursive call 2: 1 dim-1 vars, End of recursive call: and 1 xjuncts. [2018-04-05 16:38:16,378 INFO L267 ElimStorePlain]: Start of recursive call 1: 2 dim-0 vars, 1 dim-2 vars, End of recursive call: and 1 xjuncts. [2018-04-05 16:38:16,378 INFO L202 ElimStorePlain]: Needed 3 recursive calls to eliminate 3 variables, input treesize:15, output treesize:3 [2018-04-05 16:38:16,445 INFO L134 CoverageAnalysis]: Checked inductivity of 2 backedges. 2 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-04-05 16:38:16,445 INFO L314 TraceCheckSpWp]: Computing backward predicates... [2018-04-05 16:38:16,599 INFO L134 CoverageAnalysis]: Checked inductivity of 2 backedges. 2 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-04-05 16:38:16,638 INFO L320 seRefinementStrategy]: Constructing automaton from 2 perfect and 0 imperfect interpolant sequences. [2018-04-05 16:38:16,638 INFO L335 seRefinementStrategy]: Number of different interpolants: perfect sequences [6, 6] imperfect sequences [] total 8 [2018-04-05 16:38:16,638 INFO L442 AbstractCegarLoop]: Interpolant automaton has 8 states [2018-04-05 16:38:16,639 INFO L132 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2018-04-05 16:38:16,639 INFO L133 InterpolantAutomaton]: CoverageRelationStatistics Valid=17, Invalid=39, Unknown=0, NotChecked=0, Total=56 [2018-04-05 16:38:16,639 INFO L87 Difference]: Start difference. First operand 75 states and 80 transitions. Second operand 8 states. [2018-04-05 16:38:16,927 WARN L151 SmtUtils]: Spent 121ms on a formula simplification. DAG size of input: 16 DAG size of output 12 [2018-04-05 16:38:17,356 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-04-05 16:38:17,399 INFO L93 Difference]: Finished difference Result 128 states and 136 transitions. [2018-04-05 16:38:17,399 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2018-04-05 16:38:17,399 INFO L78 Accepts]: Start accepts. Automaton has 8 states. Word has length 47 [2018-04-05 16:38:17,400 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-04-05 16:38:17,400 INFO L225 Difference]: With dead ends: 128 [2018-04-05 16:38:17,400 INFO L226 Difference]: Without dead ends: 74 [2018-04-05 16:38:17,401 INFO L567 BasicCegarLoop]: 0 DeclaredPredicates, 98 GetRequests, 87 SyntacticMatches, 0 SemanticMatches, 11 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 11 ImplicationChecksByTransitivity, 0.7s TimeCoverageRelationStatistics Valid=52, Invalid=104, Unknown=0, NotChecked=0, Total=156 [2018-04-05 16:38:17,401 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 74 states. [2018-04-05 16:38:17,409 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 74 to 74. [2018-04-05 16:38:17,409 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 74 states. [2018-04-05 16:38:17,410 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 74 states to 74 states and 77 transitions. [2018-04-05 16:38:17,410 INFO L78 Accepts]: Start accepts. Automaton has 74 states and 77 transitions. Word has length 47 [2018-04-05 16:38:17,411 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-04-05 16:38:17,411 INFO L459 AbstractCegarLoop]: Abstraction has 74 states and 77 transitions. [2018-04-05 16:38:17,411 INFO L460 AbstractCegarLoop]: Interpolant automaton has 8 states. [2018-04-05 16:38:17,411 INFO L276 IsEmpty]: Start isEmpty. Operand 74 states and 77 transitions. [2018-04-05 16:38:17,411 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 51 [2018-04-05 16:38:17,412 INFO L347 BasicCegarLoop]: Found error trace [2018-04-05 16:38:17,412 INFO L355 BasicCegarLoop]: trace histogram [2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2018-04-05 16:38:17,412 INFO L408 AbstractCegarLoop]: === Iteration 17 === [mainErr3RequiresViolation, mainErr1RequiresViolation, mainErr2RequiresViolation, mainErr4EnsuresViolationMEMORY_LEAK, mainErr0RequiresViolation, substringErr3RequiresViolation, substringErr1RequiresViolation, substringErr7RequiresViolation, substringErr9RequiresViolation, substringErr2RequiresViolation, substringErr8RequiresViolation, substringErr4RequiresViolation, substringErr6RequiresViolation, substringErr0RequiresViolation, substringErr5RequiresViolation]=== [2018-04-05 16:38:17,412 INFO L82 PathProgramCache]: Analyzing trace with hash 1413739344, now seen corresponding path program 1 times No working directory specified, using /storage/ultimate/releaseScripts/default/UAutomizer-linux/z3 Starting monitored process 18 with z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 18 with z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2018-04-05 16:38:17,434 INFO L68 tionRefinementEngine]: Using refinement strategy FixedRefinementStrategy [2018-04-05 16:38:17,469 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-04-05 16:38:17,472 INFO L270 TraceCheckSpWp]: Computing forward predicates... [2018-04-05 16:38:17,614 INFO L134 CoverageAnalysis]: Checked inductivity of 2 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 2 trivial. 0 not checked. [2018-04-05 16:38:17,614 INFO L314 TraceCheckSpWp]: Computing backward predicates... [2018-04-05 16:38:17,637 INFO L134 CoverageAnalysis]: Checked inductivity of 2 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 2 trivial. 0 not checked. [2018-04-05 16:38:17,698 INFO L320 seRefinementStrategy]: Constructing automaton from 2 perfect and 0 imperfect interpolant sequences. [2018-04-05 16:38:17,698 INFO L335 seRefinementStrategy]: Number of different interpolants: perfect sequences [6, 6] imperfect sequences [] total 6 [2018-04-05 16:38:17,699 INFO L442 AbstractCegarLoop]: Interpolant automaton has 7 states [2018-04-05 16:38:17,699 INFO L132 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2018-04-05 16:38:17,699 INFO L133 InterpolantAutomaton]: CoverageRelationStatistics Valid=11, Invalid=31, Unknown=0, NotChecked=0, Total=42 [2018-04-05 16:38:17,699 INFO L87 Difference]: Start difference. First operand 74 states and 77 transitions. Second operand 7 states. [2018-04-05 16:38:18,129 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-04-05 16:38:18,129 INFO L93 Difference]: Finished difference Result 78 states and 81 transitions. [2018-04-05 16:38:18,135 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2018-04-05 16:38:18,135 INFO L78 Accepts]: Start accepts. Automaton has 7 states. Word has length 50 [2018-04-05 16:38:18,136 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-04-05 16:38:18,136 INFO L225 Difference]: With dead ends: 78 [2018-04-05 16:38:18,136 INFO L226 Difference]: Without dead ends: 77 [2018-04-05 16:38:18,137 INFO L567 BasicCegarLoop]: 0 DeclaredPredicates, 102 GetRequests, 94 SyntacticMatches, 0 SemanticMatches, 8 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=29, Invalid=61, Unknown=0, NotChecked=0, Total=90 [2018-04-05 16:38:18,137 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 77 states. [2018-04-05 16:38:18,153 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 77 to 73. [2018-04-05 16:38:18,154 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 73 states. [2018-04-05 16:38:18,154 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 73 states to 73 states and 76 transitions. [2018-04-05 16:38:18,155 INFO L78 Accepts]: Start accepts. Automaton has 73 states and 76 transitions. Word has length 50 [2018-04-05 16:38:18,155 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-04-05 16:38:18,155 INFO L459 AbstractCegarLoop]: Abstraction has 73 states and 76 transitions. [2018-04-05 16:38:18,155 INFO L460 AbstractCegarLoop]: Interpolant automaton has 7 states. [2018-04-05 16:38:18,155 INFO L276 IsEmpty]: Start isEmpty. Operand 73 states and 76 transitions. [2018-04-05 16:38:18,156 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 51 [2018-04-05 16:38:18,156 INFO L347 BasicCegarLoop]: Found error trace [2018-04-05 16:38:18,156 INFO L355 BasicCegarLoop]: trace histogram [2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2018-04-05 16:38:18,156 INFO L408 AbstractCegarLoop]: === Iteration 18 === [mainErr3RequiresViolation, mainErr1RequiresViolation, mainErr2RequiresViolation, mainErr4EnsuresViolationMEMORY_LEAK, mainErr0RequiresViolation, substringErr3RequiresViolation, substringErr1RequiresViolation, substringErr7RequiresViolation, substringErr9RequiresViolation, substringErr2RequiresViolation, substringErr8RequiresViolation, substringErr4RequiresViolation, substringErr6RequiresViolation, substringErr0RequiresViolation, substringErr5RequiresViolation]=== [2018-04-05 16:38:18,156 INFO L82 PathProgramCache]: Analyzing trace with hash 1413739345, now seen corresponding path program 1 times No working directory specified, using /storage/ultimate/releaseScripts/default/UAutomizer-linux/z3 Starting monitored process 19 with z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 19 with z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2018-04-05 16:38:18,183 INFO L68 tionRefinementEngine]: Using refinement strategy FixedRefinementStrategy [2018-04-05 16:38:18,234 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-04-05 16:38:18,242 INFO L270 TraceCheckSpWp]: Computing forward predicates... [2018-04-05 16:38:18,330 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 14 treesize of output 11 [2018-04-05 16:38:18,336 INFO L477 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 11 treesize of output 10 [2018-04-05 16:38:18,337 INFO L267 ElimStorePlain]: Start of recursive call 3: End of recursive call: and 1 xjuncts. [2018-04-05 16:38:18,343 INFO L267 ElimStorePlain]: Start of recursive call 2: 1 dim-1 vars, End of recursive call: and 1 xjuncts. [2018-04-05 16:38:18,371 INFO L267 ElimStorePlain]: Start of recursive call 1: 1 dim-0 vars, 1 dim-2 vars, End of recursive call: 1 dim-0 vars, and 1 xjuncts. [2018-04-05 16:38:18,371 INFO L202 ElimStorePlain]: Needed 3 recursive calls to eliminate 2 variables, input treesize:28, output treesize:24 [2018-04-05 16:38:18,613 INFO L477 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 0 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 18 treesize of output 14 [2018-04-05 16:38:18,653 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 1 case distinctions, treesize of input 14 treesize of output 11 [2018-04-05 16:38:18,654 INFO L267 ElimStorePlain]: Start of recursive call 3: End of recursive call: and 2 xjuncts. [2018-04-05 16:38:18,673 INFO L267 ElimStorePlain]: Start of recursive call 2: 1 dim-1 vars, End of recursive call: and 2 xjuncts. [2018-04-05 16:38:18,717 INFO L267 ElimStorePlain]: Start of recursive call 1: 1 dim-0 vars, 1 dim-2 vars, End of recursive call: and 2 xjuncts. [2018-04-05 16:38:18,717 INFO L202 ElimStorePlain]: Needed 3 recursive calls to eliminate 2 variables, input treesize:31, output treesize:33 [2018-04-05 16:38:18,882 WARN L151 SmtUtils]: Spent 116ms on a formula simplification. DAG size of input: 17 DAG size of output 17 [2018-04-05 16:38:19,223 INFO L134 CoverageAnalysis]: Checked inductivity of 2 backedges. 0 proven. 2 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-04-05 16:38:19,223 INFO L314 TraceCheckSpWp]: Computing backward predicates... [2018-04-05 16:38:20,412 INFO L477 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 27 treesize of output 25 [2018-04-05 16:38:20,413 INFO L267 ElimStorePlain]: Start of recursive call 2: End of recursive call: and 1 xjuncts. [2018-04-05 16:38:20,482 INFO L477 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 29 treesize of output 25 [2018-04-05 16:38:20,483 INFO L267 ElimStorePlain]: Start of recursive call 3: End of recursive call: and 1 xjuncts. [2018-04-05 16:38:20,552 INFO L477 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 0 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 19 treesize of output 17 [2018-04-05 16:38:20,674 WARN L151 SmtUtils]: Spent 120ms on a formula simplification. DAG size of input: 13 DAG size of output 11 [2018-04-05 16:38:20,688 INFO L477 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 1 select indices, 1 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 5 treesize of output 3 [2018-04-05 16:38:20,689 INFO L267 ElimStorePlain]: Start of recursive call 5: End of recursive call: and 1 xjuncts. [2018-04-05 16:38:20,709 INFO L267 ElimStorePlain]: Start of recursive call 4: 1 dim-1 vars, End of recursive call: and 1 xjuncts. [2018-04-05 16:38:20,787 INFO L477 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 0 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 17 treesize of output 15 [2018-04-05 16:38:20,873 INFO L477 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 1 select indices, 1 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 5 treesize of output 3 [2018-04-05 16:38:20,873 INFO L267 ElimStorePlain]: Start of recursive call 7: End of recursive call: and 1 xjuncts. [2018-04-05 16:38:20,896 INFO L267 ElimStorePlain]: Start of recursive call 6: 1 dim-1 vars, End of recursive call: and 1 xjuncts. [2018-04-05 16:38:20,998 INFO L267 ElimStorePlain]: Start of recursive call 1: 2 dim-0 vars, 2 dim-1 vars, 2 dim-2 vars, End of recursive call: and 2 xjuncts. [2018-04-05 16:38:20,998 INFO L202 ElimStorePlain]: Needed 7 recursive calls to eliminate 6 variables, input treesize:57, output treesize:17 [2018-04-05 16:38:21,439 INFO L134 CoverageAnalysis]: Checked inductivity of 2 backedges. 0 proven. 2 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-04-05 16:38:21,475 INFO L320 seRefinementStrategy]: Constructing automaton from 0 perfect and 2 imperfect interpolant sequences. [2018-04-05 16:38:21,475 INFO L335 seRefinementStrategy]: Number of different interpolants: perfect sequences [] imperfect sequences [13, 13] total 24 [2018-04-05 16:38:21,475 INFO L442 AbstractCegarLoop]: Interpolant automaton has 25 states [2018-04-05 16:38:21,476 INFO L132 InterpolantAutomaton]: Constructing interpolant automaton starting with 25 interpolants. [2018-04-05 16:38:21,476 INFO L133 InterpolantAutomaton]: CoverageRelationStatistics Valid=74, Invalid=526, Unknown=0, NotChecked=0, Total=600 [2018-04-05 16:38:21,476 INFO L87 Difference]: Start difference. First operand 73 states and 76 transitions. Second operand 25 states. [2018-04-05 16:38:22,211 WARN L151 SmtUtils]: Spent 153ms on a formula simplification. DAG size of input: 14 DAG size of output 13 [2018-04-05 16:38:24,048 WARN L148 SmtUtils]: Spent 103ms on a formula simplification that was a NOOP. DAG size: 44 [2018-04-05 16:38:24,658 WARN L151 SmtUtils]: Spent 395ms on a formula simplification. DAG size of input: 54 DAG size of output 50 [2018-04-05 16:38:25,210 WARN L151 SmtUtils]: Spent 387ms on a formula simplification. DAG size of input: 58 DAG size of output 55 [2018-04-05 16:38:25,688 WARN L148 SmtUtils]: Spent 115ms on a formula simplification that was a NOOP. DAG size: 53 [2018-04-05 16:38:26,984 WARN L151 SmtUtils]: Spent 225ms on a formula simplification. DAG size of input: 47 DAG size of output 45 [2018-04-05 16:38:27,718 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-04-05 16:38:27,729 INFO L93 Difference]: Finished difference Result 146 states and 151 transitions. [2018-04-05 16:38:27,729 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 20 states. [2018-04-05 16:38:27,729 INFO L78 Accepts]: Start accepts. Automaton has 25 states. Word has length 50 [2018-04-05 16:38:27,730 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-04-05 16:38:27,732 INFO L225 Difference]: With dead ends: 146 [2018-04-05 16:38:27,732 INFO L226 Difference]: Without dead ends: 145 [2018-04-05 16:38:27,745 INFO L567 BasicCegarLoop]: 0 DeclaredPredicates, 114 GetRequests, 75 SyntacticMatches, 1 SemanticMatches, 38 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 248 ImplicationChecksByTransitivity, 5.4s TimeCoverageRelationStatistics Valid=257, Invalid=1303, Unknown=0, NotChecked=0, Total=1560 [2018-04-05 16:38:27,745 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 145 states. [2018-04-05 16:38:27,775 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 145 to 87. [2018-04-05 16:38:27,775 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 87 states. [2018-04-05 16:38:27,788 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 87 states to 87 states and 91 transitions. [2018-04-05 16:38:27,789 INFO L78 Accepts]: Start accepts. Automaton has 87 states and 91 transitions. Word has length 50 [2018-04-05 16:38:27,789 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-04-05 16:38:27,789 INFO L459 AbstractCegarLoop]: Abstraction has 87 states and 91 transitions. [2018-04-05 16:38:27,789 INFO L460 AbstractCegarLoop]: Interpolant automaton has 25 states. [2018-04-05 16:38:27,789 INFO L276 IsEmpty]: Start isEmpty. Operand 87 states and 91 transitions. [2018-04-05 16:38:27,790 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 51 [2018-04-05 16:38:27,790 INFO L347 BasicCegarLoop]: Found error trace [2018-04-05 16:38:27,790 INFO L355 BasicCegarLoop]: trace histogram [2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2018-04-05 16:38:27,790 INFO L408 AbstractCegarLoop]: === Iteration 19 === [mainErr3RequiresViolation, mainErr1RequiresViolation, mainErr2RequiresViolation, mainErr4EnsuresViolationMEMORY_LEAK, mainErr0RequiresViolation, substringErr3RequiresViolation, substringErr1RequiresViolation, substringErr7RequiresViolation, substringErr9RequiresViolation, substringErr2RequiresViolation, substringErr8RequiresViolation, substringErr4RequiresViolation, substringErr6RequiresViolation, substringErr0RequiresViolation, substringErr5RequiresViolation]=== [2018-04-05 16:38:27,791 INFO L82 PathProgramCache]: Analyzing trace with hash -270711663, now seen corresponding path program 1 times No working directory specified, using /storage/ultimate/releaseScripts/default/UAutomizer-linux/z3 Starting monitored process 20 with z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in (exit command is (exit), workingDir is null) [2018-04-05 16:38:27,809 INFO L68 tionRefinementEngine]: Using refinement strategy FixedRefinementStrategy Waiting until toolchain timeout for monitored process 20 with z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2018-04-05 16:38:27,835 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-04-05 16:38:27,876 INFO L270 TraceCheckSpWp]: Computing forward predicates... [2018-04-05 16:38:28,066 INFO L134 CoverageAnalysis]: Checked inductivity of 2 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 2 trivial. 0 not checked. [2018-04-05 16:38:28,066 INFO L314 TraceCheckSpWp]: Computing backward predicates... [2018-04-05 16:38:28,097 INFO L134 CoverageAnalysis]: Checked inductivity of 2 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 2 trivial. 0 not checked. [2018-04-05 16:38:28,134 INFO L320 seRefinementStrategy]: Constructing automaton from 2 perfect and 0 imperfect interpolant sequences. [2018-04-05 16:38:28,134 INFO L335 seRefinementStrategy]: Number of different interpolants: perfect sequences [6, 6] imperfect sequences [] total 6 [2018-04-05 16:38:28,135 INFO L442 AbstractCegarLoop]: Interpolant automaton has 7 states [2018-04-05 16:38:28,135 INFO L132 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2018-04-05 16:38:28,135 INFO L133 InterpolantAutomaton]: CoverageRelationStatistics Valid=11, Invalid=31, Unknown=0, NotChecked=0, Total=42 [2018-04-05 16:38:28,135 INFO L87 Difference]: Start difference. First operand 87 states and 91 transitions. Second operand 7 states. [2018-04-05 16:38:29,045 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-04-05 16:38:29,046 INFO L93 Difference]: Finished difference Result 87 states and 91 transitions. [2018-04-05 16:38:29,046 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2018-04-05 16:38:29,046 INFO L78 Accepts]: Start accepts. Automaton has 7 states. Word has length 50 [2018-04-05 16:38:29,047 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-04-05 16:38:29,047 INFO L225 Difference]: With dead ends: 87 [2018-04-05 16:38:29,047 INFO L226 Difference]: Without dead ends: 86 [2018-04-05 16:38:29,048 INFO L567 BasicCegarLoop]: 0 DeclaredPredicates, 102 GetRequests, 94 SyntacticMatches, 0 SemanticMatches, 8 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.4s TimeCoverageRelationStatistics Valid=29, Invalid=61, Unknown=0, NotChecked=0, Total=90 [2018-04-05 16:38:29,048 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 86 states. [2018-04-05 16:38:29,061 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 86 to 86. [2018-04-05 16:38:29,070 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 86 states. [2018-04-05 16:38:29,070 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 86 states to 86 states and 90 transitions. [2018-04-05 16:38:29,071 INFO L78 Accepts]: Start accepts. Automaton has 86 states and 90 transitions. Word has length 50 [2018-04-05 16:38:29,071 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-04-05 16:38:29,071 INFO L459 AbstractCegarLoop]: Abstraction has 86 states and 90 transitions. [2018-04-05 16:38:29,071 INFO L460 AbstractCegarLoop]: Interpolant automaton has 7 states. [2018-04-05 16:38:29,071 INFO L276 IsEmpty]: Start isEmpty. Operand 86 states and 90 transitions. [2018-04-05 16:38:29,073 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 51 [2018-04-05 16:38:29,073 INFO L347 BasicCegarLoop]: Found error trace [2018-04-05 16:38:29,073 INFO L355 BasicCegarLoop]: trace histogram [2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2018-04-05 16:38:29,074 INFO L408 AbstractCegarLoop]: === Iteration 20 === [mainErr3RequiresViolation, mainErr1RequiresViolation, mainErr2RequiresViolation, mainErr4EnsuresViolationMEMORY_LEAK, mainErr0RequiresViolation, substringErr3RequiresViolation, substringErr1RequiresViolation, substringErr7RequiresViolation, substringErr9RequiresViolation, substringErr2RequiresViolation, substringErr8RequiresViolation, substringErr4RequiresViolation, substringErr6RequiresViolation, substringErr0RequiresViolation, substringErr5RequiresViolation]=== [2018-04-05 16:38:29,074 INFO L82 PathProgramCache]: Analyzing trace with hash -270711662, now seen corresponding path program 1 times No working directory specified, using /storage/ultimate/releaseScripts/default/UAutomizer-linux/z3 Starting monitored process 21 with z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 21 with z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2018-04-05 16:38:29,108 INFO L68 tionRefinementEngine]: Using refinement strategy FixedRefinementStrategy [2018-04-05 16:38:29,164 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-04-05 16:38:29,172 INFO L270 TraceCheckSpWp]: Computing forward predicates... [2018-04-05 16:38:29,204 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 6 treesize of output 5 [2018-04-05 16:38:29,205 INFO L267 ElimStorePlain]: Start of recursive call 2: End of recursive call: and 1 xjuncts. [2018-04-05 16:38:29,231 INFO L267 ElimStorePlain]: Start of recursive call 1: 1 dim-1 vars, End of recursive call: and 1 xjuncts. [2018-04-05 16:38:29,232 INFO L202 ElimStorePlain]: Needed 2 recursive calls to eliminate 1 variables, input treesize:10, output treesize:9 [2018-04-05 16:38:29,331 INFO L700 Elim1Store]: detected not equals via solver [2018-04-05 16:38:29,336 INFO L700 Elim1Store]: detected not equals via solver [2018-04-05 16:38:29,337 INFO L477 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 2 select indices, 2 select index equivalence classes, 2 disjoint index pairs (out of 1 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 11 treesize of output 4 [2018-04-05 16:38:29,337 INFO L267 ElimStorePlain]: Start of recursive call 2: End of recursive call: and 1 xjuncts. [2018-04-05 16:38:29,357 INFO L267 ElimStorePlain]: Start of recursive call 1: 1 dim-1 vars, End of recursive call: and 1 xjuncts. [2018-04-05 16:38:29,358 INFO L202 ElimStorePlain]: Needed 2 recursive calls to eliminate 1 variables, input treesize:14, output treesize:8 [2018-04-05 16:38:29,475 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 14 treesize of output 11 [2018-04-05 16:38:29,483 INFO L477 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 11 treesize of output 10 [2018-04-05 16:38:29,483 INFO L267 ElimStorePlain]: Start of recursive call 3: End of recursive call: and 1 xjuncts. [2018-04-05 16:38:29,490 INFO L267 ElimStorePlain]: Start of recursive call 2: 1 dim-1 vars, End of recursive call: and 1 xjuncts. [2018-04-05 16:38:29,538 INFO L267 ElimStorePlain]: Start of recursive call 1: 1 dim-0 vars, 1 dim-2 vars, End of recursive call: 1 dim-0 vars, and 1 xjuncts. [2018-04-05 16:38:29,538 INFO L202 ElimStorePlain]: Needed 3 recursive calls to eliminate 2 variables, input treesize:29, output treesize:25 [2018-04-05 16:38:29,620 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 25 treesize of output 26 [2018-04-05 16:38:29,635 INFO L477 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 11 treesize of output 10 [2018-04-05 16:38:29,635 INFO L267 ElimStorePlain]: Start of recursive call 3: End of recursive call: and 1 xjuncts. [2018-04-05 16:38:29,663 INFO L267 ElimStorePlain]: Start of recursive call 2: 1 dim-1 vars, End of recursive call: and 1 xjuncts. [2018-04-05 16:38:29,727 INFO L267 ElimStorePlain]: Start of recursive call 1: 4 dim-0 vars, 1 dim-2 vars, End of recursive call: 4 dim-0 vars, and 1 xjuncts. [2018-04-05 16:38:29,728 INFO L202 ElimStorePlain]: Needed 3 recursive calls to eliminate 5 variables, input treesize:39, output treesize:35 [2018-04-05 16:38:30,140 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 28 treesize of output 26 [2018-04-05 16:38:30,287 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 1 case distinctions, treesize of input 14 treesize of output 11 [2018-04-05 16:38:30,287 INFO L267 ElimStorePlain]: Start of recursive call 3: End of recursive call: and 2 xjuncts. [2018-04-05 16:38:30,444 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 8 treesize of output 1 [2018-04-05 16:38:30,444 INFO L267 ElimStorePlain]: Start of recursive call 4: End of recursive call: and 1 xjuncts. [2018-04-05 16:38:30,490 INFO L267 ElimStorePlain]: Start of recursive call 2: 2 dim-1 vars, End of recursive call: and 2 xjuncts. [2018-04-05 16:38:30,590 INFO L267 ElimStorePlain]: Start of recursive call 1: 5 dim-0 vars, 1 dim-2 vars, End of recursive call: and 2 xjuncts. [2018-04-05 16:38:30,590 INFO L202 ElimStorePlain]: Needed 4 recursive calls to eliminate 6 variables, input treesize:48, output treesize:33 [2018-04-05 16:38:30,887 WARN L151 SmtUtils]: Spent 214ms on a formula simplification. DAG size of input: 17 DAG size of output 17 [2018-04-05 16:38:31,350 INFO L134 CoverageAnalysis]: Checked inductivity of 2 backedges. 0 proven. 2 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-04-05 16:38:31,350 INFO L314 TraceCheckSpWp]: Computing backward predicates... [2018-04-05 16:38:32,765 INFO L477 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 16 treesize of output 12 [2018-04-05 16:38:32,766 INFO L267 ElimStorePlain]: Start of recursive call 2: End of recursive call: and 1 xjuncts. [2018-04-05 16:38:32,837 INFO L477 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 0 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 13 treesize of output 11 [2018-04-05 16:38:32,978 INFO L477 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 1 select indices, 1 select index equivalence classes, 2 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 5 treesize of output 3 [2018-04-05 16:38:32,979 INFO L267 ElimStorePlain]: Start of recursive call 4: End of recursive call: and 1 xjuncts. [2018-04-05 16:38:32,991 INFO L267 ElimStorePlain]: Start of recursive call 3: 1 dim-1 vars, End of recursive call: and 1 xjuncts. [2018-04-05 16:38:33,038 INFO L267 ElimStorePlain]: Start of recursive call 1: 2 dim-0 vars, 1 dim-1 vars, 1 dim-2 vars, End of recursive call: and 1 xjuncts. [2018-04-05 16:38:33,038 INFO L202 ElimStorePlain]: Needed 4 recursive calls to eliminate 4 variables, input treesize:35, output treesize:7 [2018-04-05 16:38:33,210 INFO L134 CoverageAnalysis]: Checked inductivity of 2 backedges. 0 proven. 2 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-04-05 16:38:33,247 INFO L320 seRefinementStrategy]: Constructing automaton from 0 perfect and 2 imperfect interpolant sequences. [2018-04-05 16:38:33,247 INFO L335 seRefinementStrategy]: Number of different interpolants: perfect sequences [] imperfect sequences [15, 11] total 24 [2018-04-05 16:38:33,248 INFO L442 AbstractCegarLoop]: Interpolant automaton has 25 states [2018-04-05 16:38:33,248 INFO L132 InterpolantAutomaton]: Constructing interpolant automaton starting with 25 interpolants. [2018-04-05 16:38:33,249 INFO L133 InterpolantAutomaton]: CoverageRelationStatistics Valid=72, Invalid=528, Unknown=0, NotChecked=0, Total=600 [2018-04-05 16:38:33,249 INFO L87 Difference]: Start difference. First operand 86 states and 90 transitions. Second operand 25 states. [2018-04-05 16:38:34,539 WARN L151 SmtUtils]: Spent 178ms on a formula simplification. DAG size of input: 71 DAG size of output 61 [2018-04-05 16:38:34,704 WARN L151 SmtUtils]: Spent 102ms on a formula simplification. DAG size of input: 64 DAG size of output 56 [2018-04-05 16:38:35,072 WARN L151 SmtUtils]: Spent 124ms on a formula simplification. DAG size of input: 70 DAG size of output 62 [2018-04-05 16:38:35,911 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-04-05 16:38:35,911 INFO L93 Difference]: Finished difference Result 198 states and 206 transitions. [2018-04-05 16:38:35,911 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 18 states. [2018-04-05 16:38:35,912 INFO L78 Accepts]: Start accepts. Automaton has 25 states. Word has length 50 [2018-04-05 16:38:35,912 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-04-05 16:38:35,913 INFO L225 Difference]: With dead ends: 198 [2018-04-05 16:38:35,913 INFO L226 Difference]: Without dead ends: 197 [2018-04-05 16:38:35,914 INFO L567 BasicCegarLoop]: 0 DeclaredPredicates, 112 GetRequests, 74 SyntacticMatches, 2 SemanticMatches, 36 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 238 ImplicationChecksByTransitivity, 4.5s TimeCoverageRelationStatistics Valid=221, Invalid=1185, Unknown=0, NotChecked=0, Total=1406 [2018-04-05 16:38:35,914 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 197 states. [2018-04-05 16:38:35,979 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 197 to 140. [2018-04-05 16:38:35,979 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 140 states. [2018-04-05 16:38:35,980 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 140 states to 140 states and 149 transitions. [2018-04-05 16:38:35,980 INFO L78 Accepts]: Start accepts. Automaton has 140 states and 149 transitions. Word has length 50 [2018-04-05 16:38:35,981 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-04-05 16:38:35,992 INFO L459 AbstractCegarLoop]: Abstraction has 140 states and 149 transitions. [2018-04-05 16:38:35,992 INFO L460 AbstractCegarLoop]: Interpolant automaton has 25 states. [2018-04-05 16:38:35,992 INFO L276 IsEmpty]: Start isEmpty. Operand 140 states and 149 transitions. [2018-04-05 16:38:35,993 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 55 [2018-04-05 16:38:35,993 INFO L347 BasicCegarLoop]: Found error trace [2018-04-05 16:38:35,993 INFO L355 BasicCegarLoop]: trace histogram [2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2018-04-05 16:38:35,993 INFO L408 AbstractCegarLoop]: === Iteration 21 === [mainErr3RequiresViolation, mainErr1RequiresViolation, mainErr2RequiresViolation, mainErr4EnsuresViolationMEMORY_LEAK, mainErr0RequiresViolation, substringErr3RequiresViolation, substringErr1RequiresViolation, substringErr7RequiresViolation, substringErr9RequiresViolation, substringErr2RequiresViolation, substringErr8RequiresViolation, substringErr4RequiresViolation, substringErr6RequiresViolation, substringErr0RequiresViolation, substringErr5RequiresViolation]=== [2018-04-05 16:38:35,993 INFO L82 PathProgramCache]: Analyzing trace with hash -544277930, now seen corresponding path program 1 times No working directory specified, using /storage/ultimate/releaseScripts/default/UAutomizer-linux/z3 Starting monitored process 22 with z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in (exit command is (exit), workingDir is null) [2018-04-05 16:38:36,031 INFO L68 tionRefinementEngine]: Using refinement strategy FixedRefinementStrategy Waiting until toolchain timeout for monitored process 22 with z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2018-04-05 16:38:36,067 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-04-05 16:38:36,070 INFO L270 TraceCheckSpWp]: Computing forward predicates... [2018-04-05 16:38:36,263 INFO L134 CoverageAnalysis]: Checked inductivity of 6 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 6 trivial. 0 not checked. [2018-04-05 16:38:36,264 INFO L314 TraceCheckSpWp]: Computing backward predicates... [2018-04-05 16:38:36,301 INFO L134 CoverageAnalysis]: Checked inductivity of 6 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 6 trivial. 0 not checked. [2018-04-05 16:38:36,350 INFO L320 seRefinementStrategy]: Constructing automaton from 2 perfect and 0 imperfect interpolant sequences. [2018-04-05 16:38:36,350 INFO L335 seRefinementStrategy]: Number of different interpolants: perfect sequences [7, 7] imperfect sequences [] total 7 [2018-04-05 16:38:36,351 INFO L442 AbstractCegarLoop]: Interpolant automaton has 8 states [2018-04-05 16:38:36,351 INFO L132 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2018-04-05 16:38:36,351 INFO L133 InterpolantAutomaton]: CoverageRelationStatistics Valid=13, Invalid=43, Unknown=0, NotChecked=0, Total=56 [2018-04-05 16:38:36,351 INFO L87 Difference]: Start difference. First operand 140 states and 149 transitions. Second operand 8 states. [2018-04-05 16:38:36,869 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-04-05 16:38:36,870 INFO L93 Difference]: Finished difference Result 140 states and 149 transitions. [2018-04-05 16:38:36,870 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2018-04-05 16:38:36,870 INFO L78 Accepts]: Start accepts. Automaton has 8 states. Word has length 54 [2018-04-05 16:38:36,871 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-04-05 16:38:36,871 INFO L225 Difference]: With dead ends: 140 [2018-04-05 16:38:36,872 INFO L226 Difference]: Without dead ends: 139 [2018-04-05 16:38:36,872 INFO L567 BasicCegarLoop]: 0 DeclaredPredicates, 112 GetRequests, 101 SyntacticMatches, 0 SemanticMatches, 11 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 4 ImplicationChecksByTransitivity, 0.4s TimeCoverageRelationStatistics Valid=49, Invalid=107, Unknown=0, NotChecked=0, Total=156 [2018-04-05 16:38:36,872 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 139 states. [2018-04-05 16:38:36,919 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 139 to 139. [2018-04-05 16:38:36,919 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 139 states. [2018-04-05 16:38:36,920 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 139 states to 139 states and 147 transitions. [2018-04-05 16:38:36,932 INFO L78 Accepts]: Start accepts. Automaton has 139 states and 147 transitions. Word has length 54 [2018-04-05 16:38:36,932 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-04-05 16:38:36,932 INFO L459 AbstractCegarLoop]: Abstraction has 139 states and 147 transitions. [2018-04-05 16:38:36,932 INFO L460 AbstractCegarLoop]: Interpolant automaton has 8 states. [2018-04-05 16:38:36,932 INFO L276 IsEmpty]: Start isEmpty. Operand 139 states and 147 transitions. [2018-04-05 16:38:36,933 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 55 [2018-04-05 16:38:36,933 INFO L347 BasicCegarLoop]: Found error trace [2018-04-05 16:38:36,933 INFO L355 BasicCegarLoop]: trace histogram [2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2018-04-05 16:38:36,933 INFO L408 AbstractCegarLoop]: === Iteration 22 === [mainErr3RequiresViolation, mainErr1RequiresViolation, mainErr2RequiresViolation, mainErr4EnsuresViolationMEMORY_LEAK, mainErr0RequiresViolation, substringErr3RequiresViolation, substringErr1RequiresViolation, substringErr7RequiresViolation, substringErr9RequiresViolation, substringErr2RequiresViolation, substringErr8RequiresViolation, substringErr4RequiresViolation, substringErr6RequiresViolation, substringErr0RequiresViolation, substringErr5RequiresViolation]=== [2018-04-05 16:38:36,934 INFO L82 PathProgramCache]: Analyzing trace with hash -544277929, now seen corresponding path program 1 times No working directory specified, using /storage/ultimate/releaseScripts/default/UAutomizer-linux/z3 Starting monitored process 23 with z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 23 with z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2018-04-05 16:38:36,963 INFO L68 tionRefinementEngine]: Using refinement strategy FixedRefinementStrategy [2018-04-05 16:38:36,995 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-04-05 16:38:36,999 INFO L270 TraceCheckSpWp]: Computing forward predicates... [2018-04-05 16:38:37,023 INFO L477 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 6 treesize of output 5 [2018-04-05 16:38:37,024 INFO L267 ElimStorePlain]: Start of recursive call 2: End of recursive call: and 1 xjuncts. [2018-04-05 16:38:37,064 INFO L267 ElimStorePlain]: Start of recursive call 1: 1 dim-1 vars, End of recursive call: and 1 xjuncts. [2018-04-05 16:38:37,065 INFO L202 ElimStorePlain]: Needed 2 recursive calls to eliminate 1 variables, input treesize:10, output treesize:9 [2018-04-05 16:38:37,142 INFO L700 Elim1Store]: detected not equals via solver [2018-04-05 16:38:37,144 INFO L700 Elim1Store]: detected not equals via solver [2018-04-05 16:38:37,145 INFO L477 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 2 select indices, 2 select index equivalence classes, 2 disjoint index pairs (out of 1 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 11 treesize of output 4 [2018-04-05 16:38:37,145 INFO L267 ElimStorePlain]: Start of recursive call 2: End of recursive call: and 1 xjuncts. [2018-04-05 16:38:37,170 INFO L267 ElimStorePlain]: Start of recursive call 1: 1 dim-1 vars, End of recursive call: and 1 xjuncts. [2018-04-05 16:38:37,171 INFO L202 ElimStorePlain]: Needed 2 recursive calls to eliminate 1 variables, input treesize:14, output treesize:8 [2018-04-05 16:38:37,277 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 14 treesize of output 11 [2018-04-05 16:38:37,284 INFO L477 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 11 treesize of output 10 [2018-04-05 16:38:37,285 INFO L267 ElimStorePlain]: Start of recursive call 3: End of recursive call: and 1 xjuncts. [2018-04-05 16:38:37,288 INFO L267 ElimStorePlain]: Start of recursive call 2: 1 dim-1 vars, End of recursive call: and 1 xjuncts. [2018-04-05 16:38:37,321 INFO L267 ElimStorePlain]: Start of recursive call 1: 1 dim-0 vars, 1 dim-2 vars, End of recursive call: 1 dim-0 vars, and 1 xjuncts. [2018-04-05 16:38:37,322 INFO L202 ElimStorePlain]: Needed 3 recursive calls to eliminate 2 variables, input treesize:29, output treesize:25 [2018-04-05 16:38:37,418 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 25 treesize of output 26 [2018-04-05 16:38:37,421 INFO L477 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 11 treesize of output 10 [2018-04-05 16:38:37,422 INFO L267 ElimStorePlain]: Start of recursive call 3: End of recursive call: and 1 xjuncts. [2018-04-05 16:38:37,446 INFO L267 ElimStorePlain]: Start of recursive call 2: 1 dim-1 vars, End of recursive call: and 1 xjuncts. [2018-04-05 16:38:37,480 INFO L267 ElimStorePlain]: Start of recursive call 1: 4 dim-0 vars, 1 dim-2 vars, End of recursive call: 4 dim-0 vars, and 1 xjuncts. [2018-04-05 16:38:37,480 INFO L202 ElimStorePlain]: Needed 3 recursive calls to eliminate 5 variables, input treesize:39, output treesize:35 [2018-04-05 16:38:40,387 WARN L148 SmtUtils]: Spent 2199ms on a formula simplification that was a NOOP. DAG size: 42 [2018-04-05 16:38:40,773 INFO L477 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 0 stores, 3 select indices, 3 select index equivalence classes, 1 disjoint index pairs (out of 3 index pairs), introduced 3 new quantified variables, introduced 2 case distinctions, treesize of input 43 treesize of output 53 [2018-04-05 16:38:40,893 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 1 case distinctions, treesize of input 41 treesize of output 39 [2018-04-05 16:38:40,898 INFO L267 ElimStorePlain]: Start of recursive call 3: End of recursive call: and 2 xjuncts. [2018-04-05 16:38:41,509 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 1 case distinctions, treesize of input 41 treesize of output 39 [2018-04-05 16:38:41,510 INFO L267 ElimStorePlain]: Start of recursive call 4: End of recursive call: and 2 xjuncts. [2018-04-05 16:38:41,926 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 31 treesize of output 23 [2018-04-05 16:38:41,927 INFO L267 ElimStorePlain]: Start of recursive call 5: End of recursive call: and 1 xjuncts. [2018-04-05 16:38:41,938 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 27 treesize of output 19 [2018-04-05 16:38:41,938 INFO L267 ElimStorePlain]: Start of recursive call 6: End of recursive call: and 1 xjuncts. [2018-04-05 16:38:42,325 INFO L477 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 3 select indices, 3 select index equivalence classes, 2 disjoint index pairs (out of 3 index pairs), introduced 0 new quantified variables, introduced 2 case distinctions, treesize of input 37 treesize of output 43 [2018-04-05 16:38:42,326 INFO L267 ElimStorePlain]: Start of recursive call 7: End of recursive call: and 4 xjuncts. [2018-04-05 16:38:42,759 INFO L477 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 1 select indices, 1 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 35 treesize of output 28 [2018-04-05 16:38:42,760 INFO L267 ElimStorePlain]: Start of recursive call 8: End of recursive call: and 1 xjuncts. [2018-04-05 16:38:42,766 INFO L477 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 1 select indices, 1 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 31 treesize of output 24 [2018-04-05 16:38:42,767 INFO L267 ElimStorePlain]: Start of recursive call 9: End of recursive call: and 1 xjuncts. [2018-04-05 16:38:43,126 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 28 treesize of output 20 [2018-04-05 16:38:43,127 INFO L267 ElimStorePlain]: Start of recursive call 10: End of recursive call: and 1 xjuncts. [2018-04-05 16:38:43,134 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 24 treesize of output 16 [2018-04-05 16:38:43,163 INFO L267 ElimStorePlain]: Start of recursive call 11: End of recursive call: and 1 xjuncts. [2018-04-05 16:38:43,505 INFO L477 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 35 treesize of output 27 [2018-04-05 16:38:43,506 INFO L267 ElimStorePlain]: Start of recursive call 12: End of recursive call: and 1 xjuncts. [2018-04-05 16:38:43,513 INFO L477 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 34 treesize of output 26 [2018-04-05 16:38:43,514 INFO L267 ElimStorePlain]: Start of recursive call 13: End of recursive call: and 1 xjuncts. [2018-04-05 16:38:43,519 INFO L477 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 31 treesize of output 23 [2018-04-05 16:38:43,520 INFO L267 ElimStorePlain]: Start of recursive call 14: End of recursive call: and 1 xjuncts. [2018-04-05 16:38:44,118 INFO L267 ElimStorePlain]: Start of recursive call 2: 8 dim-1 vars, End of recursive call: and 7 xjuncts. [2018-04-05 16:38:44,468 INFO L267 ElimStorePlain]: Start of recursive call 1: 7 dim-0 vars, 1 dim-2 vars, End of recursive call: and 3 xjuncts. [2018-04-05 16:38:44,468 INFO L202 ElimStorePlain]: Needed 14 recursive calls to eliminate 8 variables, input treesize:63, output treesize:66 [2018-04-05 16:38:44,757 WARN L151 SmtUtils]: Spent 177ms on a formula simplification. DAG size of input: 22 DAG size of output 20 [2018-04-05 16:38:45,423 INFO L134 CoverageAnalysis]: Checked inductivity of 6 backedges. 0 proven. 6 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-04-05 16:38:45,424 INFO L314 TraceCheckSpWp]: Computing backward predicates... [2018-04-05 16:38:46,724 WARN L151 SmtUtils]: Spent 150ms on a formula simplification. DAG size of input: 22 DAG size of output 17 [2018-04-05 16:38:48,380 WARN L151 SmtUtils]: Spent 188ms on a formula simplification. DAG size of input: 39 DAG size of output 33 [2018-04-05 16:38:48,384 INFO L477 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 15 treesize of output 11 [2018-04-05 16:38:48,385 INFO L267 ElimStorePlain]: Start of recursive call 2: End of recursive call: and 1 xjuncts. [2018-04-05 16:38:48,513 INFO L477 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 0 stores, 2 select indices, 2 select index equivalence classes, 0 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 1 case distinctions, treesize of input 26 treesize of output 28 [2018-04-05 16:38:48,840 WARN L151 SmtUtils]: Spent 325ms on a formula simplification. DAG size of input: 36 DAG size of output 31 [2018-04-05 16:38:48,857 INFO L477 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 2 select indices, 2 select index equivalence classes, 2 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 0 case distinctions, treesize of input 21 treesize of output 15 [2018-04-05 16:38:48,858 INFO L267 ElimStorePlain]: Start of recursive call 4: End of recursive call: and 1 xjuncts. [2018-04-05 16:38:48,915 INFO L267 ElimStorePlain]: Start of recursive call 3: 3 dim-1 vars, End of recursive call: and 1 xjuncts. [2018-04-05 16:38:49,015 INFO L267 ElimStorePlain]: Start of recursive call 1: 4 dim-0 vars, 1 dim-1 vars, 1 dim-2 vars, End of recursive call: and 1 xjuncts. [2018-04-05 16:38:49,016 INFO L202 ElimStorePlain]: Needed 4 recursive calls to eliminate 6 variables, input treesize:69, output treesize:7 [2018-04-05 16:38:49,352 INFO L134 CoverageAnalysis]: Checked inductivity of 6 backedges. 0 proven. 6 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-04-05 16:38:49,389 INFO L320 seRefinementStrategy]: Constructing automaton from 0 perfect and 2 imperfect interpolant sequences. [2018-04-05 16:38:49,389 INFO L335 seRefinementStrategy]: Number of different interpolants: perfect sequences [] imperfect sequences [21, 17] total 36 [2018-04-05 16:38:49,389 INFO L442 AbstractCegarLoop]: Interpolant automaton has 37 states [2018-04-05 16:38:49,390 INFO L132 InterpolantAutomaton]: Constructing interpolant automaton starting with 37 interpolants. [2018-04-05 16:38:49,390 INFO L133 InterpolantAutomaton]: CoverageRelationStatistics Valid=127, Invalid=1205, Unknown=0, NotChecked=0, Total=1332 [2018-04-05 16:38:49,392 INFO L87 Difference]: Start difference. First operand 139 states and 147 transitions. Second operand 37 states. [2018-04-05 16:38:51,184 WARN L148 SmtUtils]: Spent 119ms on a formula simplification that was a NOOP. DAG size: 39 [2018-04-05 16:38:51,585 WARN L151 SmtUtils]: Spent 122ms on a formula simplification. DAG size of input: 46 DAG size of output 42 [2018-04-05 16:38:51,891 WARN L151 SmtUtils]: Spent 146ms on a formula simplification. DAG size of input: 60 DAG size of output 52 [2018-04-05 16:38:52,347 WARN L151 SmtUtils]: Spent 106ms on a formula simplification. DAG size of input: 74 DAG size of output 62 [2018-04-05 16:38:52,695 WARN L151 SmtUtils]: Spent 158ms on a formula simplification. DAG size of input: 80 DAG size of output 68 [2018-04-05 16:38:53,402 WARN L151 SmtUtils]: Spent 414ms on a formula simplification. DAG size of input: 87 DAG size of output 75 [2018-04-05 16:38:54,419 WARN L151 SmtUtils]: Spent 661ms on a formula simplification. DAG size of input: 87 DAG size of output 71 [2018-04-05 16:38:55,521 WARN L151 SmtUtils]: Spent 859ms on a formula simplification. DAG size of input: 91 DAG size of output 75 [2018-04-05 16:38:56,502 WARN L151 SmtUtils]: Spent 839ms on a formula simplification. DAG size of input: 104 DAG size of output 84 [2018-04-05 16:38:57,164 WARN L151 SmtUtils]: Spent 480ms on a formula simplification. DAG size of input: 104 DAG size of output 86 [2018-04-05 16:38:57,684 WARN L151 SmtUtils]: Spent 366ms on a formula simplification. DAG size of input: 104 DAG size of output 79 [2018-04-05 16:38:58,044 WARN L151 SmtUtils]: Spent 231ms on a formula simplification. DAG size of input: 99 DAG size of output 78 [2018-04-05 16:38:58,504 WARN L151 SmtUtils]: Spent 319ms on a formula simplification. DAG size of input: 99 DAG size of output 83 [2018-04-05 16:38:59,051 WARN L151 SmtUtils]: Spent 365ms on a formula simplification. DAG size of input: 97 DAG size of output 76 [2018-04-05 16:38:59,781 WARN L151 SmtUtils]: Spent 478ms on a formula simplification. DAG size of input: 97 DAG size of output 81 [2018-04-05 16:39:00,165 WARN L151 SmtUtils]: Spent 193ms on a formula simplification. DAG size of input: 84 DAG size of output 72 [2018-04-05 16:39:00,432 WARN L151 SmtUtils]: Spent 155ms on a formula simplification. DAG size of input: 83 DAG size of output 69 [2018-04-05 16:39:00,848 WARN L151 SmtUtils]: Spent 184ms on a formula simplification. DAG size of input: 78 DAG size of output 66 [2018-04-05 16:39:01,166 WARN L151 SmtUtils]: Spent 202ms on a formula simplification. DAG size of input: 84 DAG size of output 72 [2018-04-05 16:39:01,550 WARN L151 SmtUtils]: Spent 154ms on a formula simplification. DAG size of input: 73 DAG size of output 65 [2018-04-05 16:39:01,938 WARN L151 SmtUtils]: Spent 174ms on a formula simplification. DAG size of input: 69 DAG size of output 59 [2018-04-05 16:39:02,247 WARN L151 SmtUtils]: Spent 162ms on a formula simplification. DAG size of input: 66 DAG size of output 58 [2018-04-05 16:39:03,062 WARN L151 SmtUtils]: Spent 257ms on a formula simplification. DAG size of input: 75 DAG size of output 65 [2018-04-05 16:39:03,718 WARN L151 SmtUtils]: Spent 214ms on a formula simplification. DAG size of input: 60 DAG size of output 56 [2018-04-05 16:39:04,751 WARN L151 SmtUtils]: Spent 161ms on a formula simplification. DAG size of input: 66 DAG size of output 58 [2018-04-05 16:39:05,248 WARN L151 SmtUtils]: Spent 174ms on a formula simplification. DAG size of input: 74 DAG size of output 66 [2018-04-05 16:39:05,303 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-04-05 16:39:05,303 INFO L93 Difference]: Finished difference Result 187 states and 194 transitions. [2018-04-05 16:39:05,306 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 37 states. [2018-04-05 16:39:05,306 INFO L78 Accepts]: Start accepts. Automaton has 37 states. Word has length 54 [2018-04-05 16:39:05,307 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-04-05 16:39:05,308 INFO L225 Difference]: With dead ends: 187 [2018-04-05 16:39:05,308 INFO L226 Difference]: Without dead ends: 186 [2018-04-05 16:39:05,322 INFO L567 BasicCegarLoop]: 0 DeclaredPredicates, 139 GetRequests, 70 SyntacticMatches, 2 SemanticMatches, 67 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 956 ImplicationChecksByTransitivity, 20.0s TimeCoverageRelationStatistics Valid=765, Invalid=3927, Unknown=0, NotChecked=0, Total=4692 [2018-04-05 16:39:05,322 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 186 states. [2018-04-05 16:39:05,370 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 186 to 143. [2018-04-05 16:39:05,370 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 143 states. [2018-04-05 16:39:05,375 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 143 states to 143 states and 151 transitions. [2018-04-05 16:39:05,376 INFO L78 Accepts]: Start accepts. Automaton has 143 states and 151 transitions. Word has length 54 [2018-04-05 16:39:05,376 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-04-05 16:39:05,376 INFO L459 AbstractCegarLoop]: Abstraction has 143 states and 151 transitions. [2018-04-05 16:39:05,376 INFO L460 AbstractCegarLoop]: Interpolant automaton has 37 states. [2018-04-05 16:39:05,376 INFO L276 IsEmpty]: Start isEmpty. Operand 143 states and 151 transitions. [2018-04-05 16:39:05,377 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 69 [2018-04-05 16:39:05,377 INFO L347 BasicCegarLoop]: Found error trace [2018-04-05 16:39:05,378 INFO L355 BasicCegarLoop]: trace histogram [3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2018-04-05 16:39:05,378 INFO L408 AbstractCegarLoop]: === Iteration 23 === [mainErr3RequiresViolation, mainErr1RequiresViolation, mainErr2RequiresViolation, mainErr4EnsuresViolationMEMORY_LEAK, mainErr0RequiresViolation, substringErr3RequiresViolation, substringErr1RequiresViolation, substringErr7RequiresViolation, substringErr9RequiresViolation, substringErr2RequiresViolation, substringErr8RequiresViolation, substringErr4RequiresViolation, substringErr6RequiresViolation, substringErr0RequiresViolation, substringErr5RequiresViolation]=== [2018-04-05 16:39:05,378 INFO L82 PathProgramCache]: Analyzing trace with hash -555566326, now seen corresponding path program 2 times No working directory specified, using /storage/ultimate/releaseScripts/default/UAutomizer-linux/z3 Starting monitored process 24 with z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 24 with z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2018-04-05 16:39:05,397 INFO L68 tionRefinementEngine]: Using refinement strategy FixedRefinementStrategy [2018-04-05 16:39:05,440 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-04-05 16:39:05,443 INFO L270 TraceCheckSpWp]: Computing forward predicates... [2018-04-05 16:39:05,450 INFO L477 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 6 treesize of output 5 [2018-04-05 16:39:05,451 INFO L267 ElimStorePlain]: Start of recursive call 2: End of recursive call: and 1 xjuncts. [2018-04-05 16:39:05,603 INFO L267 ElimStorePlain]: Start of recursive call 1: 1 dim-1 vars, End of recursive call: and 1 xjuncts. [2018-04-05 16:39:05,603 INFO L202 ElimStorePlain]: Needed 2 recursive calls to eliminate 1 variables, input treesize:10, output treesize:9 [2018-04-05 16:39:05,780 WARN L148 SmtUtils]: Spent 131ms on a formula simplification that was a NOOP. DAG size: 9 [2018-04-05 16:39:06,029 WARN L148 SmtUtils]: Spent 164ms on a formula simplification that was a NOOP. DAG size: 9 [2018-04-05 16:39:06,086 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 15 treesize of output 12 [2018-04-05 16:39:06,093 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 12 treesize of output 11 [2018-04-05 16:39:06,094 INFO L267 ElimStorePlain]: Start of recursive call 3: End of recursive call: and 1 xjuncts. [2018-04-05 16:39:06,106 INFO L267 ElimStorePlain]: Start of recursive call 2: 1 dim-1 vars, End of recursive call: and 1 xjuncts. [2018-04-05 16:39:06,114 INFO L267 ElimStorePlain]: Start of recursive call 1: 1 dim-2 vars, End of recursive call: and 1 xjuncts. [2018-04-05 16:39:06,114 INFO L202 ElimStorePlain]: Needed 3 recursive calls to eliminate 1 variables, input treesize:15, output treesize:11 [2018-04-05 16:39:06,647 INFO L477 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 0 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 19 treesize of output 15 [2018-04-05 16:39:06,687 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 1 case distinctions, treesize of input 15 treesize of output 12 [2018-04-05 16:39:06,688 INFO L267 ElimStorePlain]: Start of recursive call 3: End of recursive call: and 2 xjuncts. [2018-04-05 16:39:06,701 INFO L267 ElimStorePlain]: Start of recursive call 2: 1 dim-1 vars, End of recursive call: and 2 xjuncts. [2018-04-05 16:39:06,753 INFO L267 ElimStorePlain]: Start of recursive call 1: 1 dim-2 vars, End of recursive call: and 2 xjuncts. [2018-04-05 16:39:06,754 INFO L202 ElimStorePlain]: Needed 3 recursive calls to eliminate 1 variables, input treesize:29, output treesize:34 [2018-04-05 16:39:07,427 INFO L134 CoverageAnalysis]: Checked inductivity of 22 backedges. 2 proven. 20 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-04-05 16:39:07,428 INFO L314 TraceCheckSpWp]: Computing backward predicates... [2018-04-05 16:39:08,540 WARN L148 SmtUtils]: Spent 129ms on a formula simplification that was a NOOP. DAG size: 16 [2018-04-05 16:39:10,215 INFO L477 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 0 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 15 treesize of output 13 [2018-04-05 16:39:10,276 INFO L477 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 1 select indices, 1 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 7 treesize of output 3 [2018-04-05 16:39:10,277 INFO L267 ElimStorePlain]: Start of recursive call 3: End of recursive call: and 1 xjuncts. [2018-04-05 16:39:10,284 INFO L267 ElimStorePlain]: Start of recursive call 2: 1 dim-1 vars, End of recursive call: and 1 xjuncts. [2018-04-05 16:39:10,331 INFO L267 ElimStorePlain]: Start of recursive call 1: 1 dim-0 vars, 1 dim-2 vars, End of recursive call: and 2 xjuncts. [2018-04-05 16:39:10,331 INFO L202 ElimStorePlain]: Needed 3 recursive calls to eliminate 2 variables, input treesize:33, output treesize:35 [2018-04-05 16:39:10,683 WARN L151 SmtUtils]: Spent 181ms on a formula simplification. DAG size of input: 18 DAG size of output 16 [2018-04-05 16:39:10,910 INFO L134 CoverageAnalysis]: Checked inductivity of 22 backedges. 0 proven. 22 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-04-05 16:39:10,947 INFO L320 seRefinementStrategy]: Constructing automaton from 0 perfect and 2 imperfect interpolant sequences. [2018-04-05 16:39:10,947 INFO L335 seRefinementStrategy]: Number of different interpolants: perfect sequences [] imperfect sequences [15, 15] total 29 [2018-04-05 16:39:10,948 INFO L442 AbstractCegarLoop]: Interpolant automaton has 30 states [2018-04-05 16:39:10,948 INFO L132 InterpolantAutomaton]: Constructing interpolant automaton starting with 30 interpolants. [2018-04-05 16:39:10,948 INFO L133 InterpolantAutomaton]: CoverageRelationStatistics Valid=89, Invalid=781, Unknown=0, NotChecked=0, Total=870 [2018-04-05 16:39:10,949 INFO L87 Difference]: Start difference. First operand 143 states and 151 transitions. Second operand 30 states. [2018-04-05 16:39:12,701 WARN L151 SmtUtils]: Spent 120ms on a formula simplification. DAG size of input: 36 DAG size of output 34 [2018-04-05 16:39:13,103 WARN L151 SmtUtils]: Spent 290ms on a formula simplification. DAG size of input: 40 DAG size of output 37 [2018-04-05 16:39:13,407 WARN L151 SmtUtils]: Spent 187ms on a formula simplification. DAG size of input: 32 DAG size of output 28 [2018-04-05 16:39:13,844 WARN L151 SmtUtils]: Spent 135ms on a formula simplification. DAG size of input: 44 DAG size of output 38 [2018-04-05 16:39:14,246 WARN L151 SmtUtils]: Spent 261ms on a formula simplification. DAG size of input: 42 DAG size of output 39 [2018-04-05 16:39:14,700 WARN L151 SmtUtils]: Spent 181ms on a formula simplification. DAG size of input: 35 DAG size of output 35 [2018-04-05 16:39:15,090 WARN L151 SmtUtils]: Spent 240ms on a formula simplification. DAG size of input: 39 DAG size of output 38 [2018-04-05 16:39:15,623 WARN L151 SmtUtils]: Spent 173ms on a formula simplification. DAG size of input: 43 DAG size of output 42 [2018-04-05 16:39:15,886 WARN L151 SmtUtils]: Spent 156ms on a formula simplification. DAG size of input: 44 DAG size of output 42 [2018-04-05 16:39:16,133 WARN L151 SmtUtils]: Spent 153ms on a formula simplification. DAG size of input: 31 DAG size of output 29 [2018-04-05 16:39:16,623 WARN L151 SmtUtils]: Spent 303ms on a formula simplification. DAG size of input: 40 DAG size of output 36 [2018-04-05 16:39:17,156 WARN L151 SmtUtils]: Spent 266ms on a formula simplification. DAG size of input: 44 DAG size of output 40 [2018-04-05 16:39:17,374 WARN L151 SmtUtils]: Spent 106ms on a formula simplification. DAG size of input: 35 DAG size of output 31 [2018-04-05 16:39:17,865 WARN L151 SmtUtils]: Spent 156ms on a formula simplification. DAG size of input: 48 DAG size of output 43 [2018-04-05 16:39:18,050 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-04-05 16:39:18,050 INFO L93 Difference]: Finished difference Result 222 states and 232 transitions. [2018-04-05 16:39:18,051 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 24 states. [2018-04-05 16:39:18,051 INFO L78 Accepts]: Start accepts. Automaton has 30 states. Word has length 68 [2018-04-05 16:39:18,051 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-04-05 16:39:18,052 INFO L225 Difference]: With dead ends: 222 [2018-04-05 16:39:18,052 INFO L226 Difference]: Without dead ends: 221 [2018-04-05 16:39:18,053 INFO L567 BasicCegarLoop]: 0 DeclaredPredicates, 155 GetRequests, 107 SyntacticMatches, 0 SemanticMatches, 48 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 264 ImplicationChecksByTransitivity, 9.6s TimeCoverageRelationStatistics Valid=492, Invalid=1958, Unknown=0, NotChecked=0, Total=2450 [2018-04-05 16:39:18,054 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 221 states. [2018-04-05 16:39:18,106 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 221 to 128. [2018-04-05 16:39:18,106 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 128 states. [2018-04-05 16:39:18,107 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 128 states to 128 states and 134 transitions. [2018-04-05 16:39:18,107 INFO L78 Accepts]: Start accepts. Automaton has 128 states and 134 transitions. Word has length 68 [2018-04-05 16:39:18,118 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-04-05 16:39:18,118 INFO L459 AbstractCegarLoop]: Abstraction has 128 states and 134 transitions. [2018-04-05 16:39:18,118 INFO L460 AbstractCegarLoop]: Interpolant automaton has 30 states. [2018-04-05 16:39:18,118 INFO L276 IsEmpty]: Start isEmpty. Operand 128 states and 134 transitions. [2018-04-05 16:39:18,124 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 73 [2018-04-05 16:39:18,124 INFO L347 BasicCegarLoop]: Found error trace [2018-04-05 16:39:18,124 INFO L355 BasicCegarLoop]: trace histogram [3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2018-04-05 16:39:18,125 INFO L408 AbstractCegarLoop]: === Iteration 24 === [mainErr3RequiresViolation, mainErr1RequiresViolation, mainErr2RequiresViolation, mainErr4EnsuresViolationMEMORY_LEAK, mainErr0RequiresViolation, substringErr3RequiresViolation, substringErr1RequiresViolation, substringErr7RequiresViolation, substringErr9RequiresViolation, substringErr2RequiresViolation, substringErr8RequiresViolation, substringErr4RequiresViolation, substringErr6RequiresViolation, substringErr0RequiresViolation, substringErr5RequiresViolation]=== [2018-04-05 16:39:18,125 INFO L82 PathProgramCache]: Analyzing trace with hash -375308912, now seen corresponding path program 2 times No working directory specified, using /storage/ultimate/releaseScripts/default/UAutomizer-linux/z3 Starting monitored process 25 with z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 25 with z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2018-04-05 16:39:18,168 INFO L68 tionRefinementEngine]: Using refinement strategy FixedRefinementStrategy [2018-04-05 16:39:18,263 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-04-05 16:39:18,271 INFO L270 TraceCheckSpWp]: Computing forward predicates... [2018-04-05 16:39:18,294 INFO L477 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 6 treesize of output 5 [2018-04-05 16:39:18,295 INFO L267 ElimStorePlain]: Start of recursive call 2: End of recursive call: and 1 xjuncts. [2018-04-05 16:39:18,317 INFO L267 ElimStorePlain]: Start of recursive call 1: 1 dim-1 vars, End of recursive call: and 1 xjuncts. [2018-04-05 16:39:18,317 INFO L202 ElimStorePlain]: Needed 2 recursive calls to eliminate 1 variables, input treesize:10, output treesize:9 [2018-04-05 16:39:18,397 INFO L700 Elim1Store]: detected not equals via solver [2018-04-05 16:39:18,405 INFO L700 Elim1Store]: detected not equals via solver [2018-04-05 16:39:18,406 INFO L477 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 2 select indices, 2 select index equivalence classes, 2 disjoint index pairs (out of 1 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 11 treesize of output 4 [2018-04-05 16:39:18,406 INFO L267 ElimStorePlain]: Start of recursive call 2: End of recursive call: and 1 xjuncts. [2018-04-05 16:39:18,428 INFO L267 ElimStorePlain]: Start of recursive call 1: 1 dim-1 vars, End of recursive call: and 1 xjuncts. [2018-04-05 16:39:18,429 INFO L202 ElimStorePlain]: Needed 2 recursive calls to eliminate 1 variables, input treesize:14, output treesize:8 [2018-04-05 16:39:18,578 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 14 treesize of output 11 [2018-04-05 16:39:18,583 INFO L477 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 11 treesize of output 10 [2018-04-05 16:39:18,583 INFO L267 ElimStorePlain]: Start of recursive call 3: End of recursive call: and 1 xjuncts. [2018-04-05 16:39:18,590 INFO L267 ElimStorePlain]: Start of recursive call 2: 1 dim-1 vars, End of recursive call: and 1 xjuncts. [2018-04-05 16:39:18,618 INFO L267 ElimStorePlain]: Start of recursive call 1: 1 dim-0 vars, 1 dim-2 vars, End of recursive call: 1 dim-0 vars, and 1 xjuncts. [2018-04-05 16:39:18,619 INFO L202 ElimStorePlain]: Needed 3 recursive calls to eliminate 2 variables, input treesize:29, output treesize:25 [2018-04-05 16:39:18,684 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 25 treesize of output 26 [2018-04-05 16:39:18,694 INFO L477 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 11 treesize of output 10 [2018-04-05 16:39:18,695 INFO L267 ElimStorePlain]: Start of recursive call 3: End of recursive call: and 1 xjuncts. [2018-04-05 16:39:18,717 INFO L267 ElimStorePlain]: Start of recursive call 2: 1 dim-1 vars, End of recursive call: and 1 xjuncts. [2018-04-05 16:39:18,762 INFO L267 ElimStorePlain]: Start of recursive call 1: 4 dim-0 vars, 1 dim-2 vars, End of recursive call: 4 dim-0 vars, and 1 xjuncts. [2018-04-05 16:39:18,762 INFO L202 ElimStorePlain]: Needed 3 recursive calls to eliminate 5 variables, input treesize:39, output treesize:35 [2018-04-05 16:39:21,577 WARN L148 SmtUtils]: Spent 2107ms on a formula simplification that was a NOOP. DAG size: 42 [2018-04-05 16:39:22,218 WARN L148 SmtUtils]: Spent 108ms on a formula simplification that was a NOOP. DAG size: 57 [2018-04-05 16:39:25,497 WARN L148 SmtUtils]: Spent 2157ms on a formula simplification that was a NOOP. DAG size: 55 [2018-04-05 16:39:26,113 INFO L477 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 0 stores, 4 select indices, 4 select index equivalence classes, 1 disjoint index pairs (out of 6 index pairs), introduced 4 new quantified variables, introduced 5 case distinctions, treesize of input 64 treesize of output 92 [2018-04-05 16:39:26,206 INFO L477 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 1 select indices, 1 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 64 treesize of output 57 [2018-04-05 16:39:26,207 INFO L267 ElimStorePlain]: Start of recursive call 3: End of recursive call: and 1 xjuncts. [2018-04-05 16:39:30,010 INFO L700 Elim1Store]: detected not equals via solver [2018-04-05 16:39:30,119 INFO L477 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 5 select indices, 5 select index equivalence classes, 6 disjoint index pairs (out of 10 index pairs), introduced 2 new quantified variables, introduced 3 case distinctions, treesize of input 53 treesize of output 92 [2018-04-05 16:39:30,121 INFO L267 ElimStorePlain]: Start of recursive call 4: End of recursive call: and 3 xjuncts. [2018-04-05 16:39:33,355 INFO L700 Elim1Store]: detected not equals via solver [2018-04-05 16:39:33,361 INFO L700 Elim1Store]: detected not equals via solver [2018-04-05 16:39:33,420 INFO L700 Elim1Store]: detected not equals via solver [2018-04-05 16:39:33,420 INFO L303 Elim1Store]: Index analysis took 105 ms [2018-04-05 16:39:33,493 INFO L477 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 4 select indices, 4 select index equivalence classes, 5 disjoint index pairs (out of 6 index pairs), introduced 0 new quantified variables, introduced 3 case distinctions, treesize of input 60 treesize of output 84 [2018-04-05 16:39:33,495 INFO L267 ElimStorePlain]: Start of recursive call 5: End of recursive call: and 8 xjuncts. [2018-04-05 16:39:36,906 INFO L700 Elim1Store]: detected not equals via solver [2018-04-05 16:39:36,910 INFO L700 Elim1Store]: detected not equals via solver [2018-04-05 16:39:36,912 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 53 treesize of output 47 [2018-04-05 16:39:36,912 INFO L267 ElimStorePlain]: Start of recursive call 6: End of recursive call: and 1 xjuncts. [2018-04-05 16:39:36,917 INFO L477 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 2 select indices, 2 select index equivalence classes, 2 disjoint index pairs (out of 1 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 63 treesize of output 60 [2018-04-05 16:39:36,917 INFO L267 ElimStorePlain]: Start of recursive call 7: End of recursive call: and 1 xjuncts. [2018-04-05 16:39:36,922 INFO L477 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 2 select indices, 2 select index equivalence classes, 2 disjoint index pairs (out of 1 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 64 treesize of output 61 [2018-04-05 16:39:36,922 INFO L267 ElimStorePlain]: Start of recursive call 8: End of recursive call: and 1 xjuncts. [2018-04-05 16:39:36,932 INFO L700 Elim1Store]: detected not equals via solver [2018-04-05 16:39:36,950 INFO L700 Elim1Store]: detected not equals via solver [2018-04-05 16:39:36,951 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 57 treesize of output 51 [2018-04-05 16:39:36,952 INFO L267 ElimStorePlain]: Start of recursive call 9: End of recursive call: and 1 xjuncts. [2018-04-05 16:39:36,955 INFO L477 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 2 select indices, 2 select index equivalence classes, 2 disjoint index pairs (out of 1 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 60 treesize of output 57 [2018-04-05 16:39:36,956 INFO L267 ElimStorePlain]: Start of recursive call 10: End of recursive call: and 1 xjuncts. [2018-04-05 16:39:39,927 INFO L477 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 1 select indices, 1 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 64 treesize of output 57 [2018-04-05 16:39:39,928 INFO L267 ElimStorePlain]: Start of recursive call 11: End of recursive call: and 1 xjuncts. [2018-04-05 16:39:42,757 INFO L700 Elim1Store]: detected not equals via solver [2018-04-05 16:39:42,795 INFO L303 Elim1Store]: Index analysis took 109 ms [2018-04-05 16:39:42,906 INFO L477 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 5 select indices, 5 select index equivalence classes, 6 disjoint index pairs (out of 10 index pairs), introduced 2 new quantified variables, introduced 5 case distinctions, treesize of input 60 treesize of output 106 [2018-04-05 16:39:42,934 INFO L267 ElimStorePlain]: Start of recursive call 12: End of recursive call: and 28 xjuncts. [2018-04-05 16:39:47,750 INFO L700 Elim1Store]: detected not equals via solver [2018-04-05 16:39:47,803 INFO L303 Elim1Store]: Index analysis took 181 ms [2018-04-05 16:39:48,408 INFO L477 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 6 select indices, 6 select index equivalence classes, 9 disjoint index pairs (out of 15 index pairs), introduced 2 new quantified variables, introduced 6 case distinctions, treesize of input 52 treesize of output 124 [2018-04-05 16:39:48,409 WARN L130 XnfTransformerHelper]: expecting exponential blowup for input size 6 [2018-04-05 16:39:48,424 INFO L267 ElimStorePlain]: Start of recursive call 13: End of recursive call: and 28 xjuncts. [2018-04-05 16:39:56,056 INFO L700 Elim1Store]: detected not equals via solver [2018-04-05 16:39:56,098 INFO L303 Elim1Store]: Index analysis took 102 ms [2018-04-05 16:39:56,245 INFO L477 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 5 select indices, 5 select index equivalence classes, 6 disjoint index pairs (out of 10 index pairs), introduced 2 new quantified variables, introduced 5 case distinctions, treesize of input 60 treesize of output 106 [2018-04-05 16:39:56,261 INFO L267 ElimStorePlain]: Start of recursive call 14: End of recursive call: and 30 xjuncts. [2018-04-05 16:40:00,984 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 63 treesize of output 55 [2018-04-05 16:40:00,985 INFO L267 ElimStorePlain]: Start of recursive call 15: End of recursive call: and 1 xjuncts. [2018-04-05 16:40:00,989 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 59 treesize of output 51 [2018-04-05 16:40:00,990 INFO L267 ElimStorePlain]: Start of recursive call 16: End of recursive call: and 1 xjuncts. [2018-04-05 16:40:00,994 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 58 treesize of output 50 [2018-04-05 16:40:00,994 INFO L267 ElimStorePlain]: Start of recursive call 17: End of recursive call: and 1 xjuncts. [2018-04-05 16:40:00,998 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 69 treesize of output 61 [2018-04-05 16:40:00,999 INFO L267 ElimStorePlain]: Start of recursive call 18: End of recursive call: and 1 xjuncts. [2018-04-05 16:40:06,052 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 64 treesize of output 56 [2018-04-05 16:40:06,053 INFO L267 ElimStorePlain]: Start of recursive call 19: End of recursive call: and 1 xjuncts. [2018-04-05 16:40:10,328 INFO L700 Elim1Store]: detected not equals via solver [2018-04-05 16:40:10,568 INFO L303 Elim1Store]: Index analysis took 292 ms [2018-04-05 16:40:10,730 INFO L477 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 6 select indices, 6 select index equivalence classes, 9 disjoint index pairs (out of 15 index pairs), introduced 2 new quantified variables, introduced 6 case distinctions, treesize of input 48 treesize of output 120 [2018-04-05 16:40:10,731 WARN L130 XnfTransformerHelper]: expecting exponential blowup for input size 6 [2018-04-05 16:40:10,761 INFO L267 ElimStorePlain]: Start of recursive call 20: End of recursive call: and 24 xjuncts. [2018-04-05 16:40:15,089 INFO L700 Elim1Store]: detected not equals via solver [2018-04-05 16:40:15,094 INFO L700 Elim1Store]: detected not equals via solver [2018-04-05 16:40:15,121 INFO L700 Elim1Store]: detected not equals via solver [2018-04-05 16:40:15,141 INFO L477 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 3 select indices, 3 select index equivalence classes, 3 disjoint index pairs (out of 3 index pairs), introduced 0 new quantified variables, introduced 1 case distinctions, treesize of input 57 treesize of output 67 [2018-04-05 16:40:15,142 INFO L267 ElimStorePlain]: Start of recursive call 21: End of recursive call: and 2 xjuncts. [2018-04-05 16:40:23,014 INFO L477 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 1 select indices, 1 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 68 treesize of output 61 [2018-04-05 16:40:23,014 INFO L267 ElimStorePlain]: Start of recursive call 22: End of recursive call: and 1 xjuncts. [2018-04-05 16:40:27,286 INFO L700 Elim1Store]: detected not equals via solver [2018-04-05 16:40:27,316 INFO L477 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 3 select indices, 3 select index equivalence classes, 3 disjoint index pairs (out of 3 index pairs), introduced 1 new quantified variables, introduced 1 case distinctions, treesize of input 61 treesize of output 70 [2018-04-05 16:40:27,317 INFO L267 ElimStorePlain]: Start of recursive call 23: End of recursive call: and 2 xjuncts. [2018-04-05 16:40:33,193 INFO L477 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 1 select indices, 1 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 52 treesize of output 45 [2018-04-05 16:40:33,194 INFO L267 ElimStorePlain]: Start of recursive call 24: End of recursive call: and 1 xjuncts. [2018-04-05 16:40:33,197 INFO L477 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 1 select indices, 1 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 56 treesize of output 49 [2018-04-05 16:40:33,198 INFO L267 ElimStorePlain]: Start of recursive call 25: End of recursive call: and 1 xjuncts. [2018-04-05 16:40:36,253 INFO L700 Elim1Store]: detected not equals via solver [2018-04-05 16:40:36,334 INFO L303 Elim1Store]: Index analysis took 293 ms [2018-04-05 16:40:36,491 INFO L477 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 4 select indices, 4 select index equivalence classes, 4 disjoint index pairs (out of 6 index pairs), introduced 2 new quantified variables, introduced 2 case distinctions, treesize of input 56 treesize of output 76 [2018-04-05 16:40:36,493 INFO L267 ElimStorePlain]: Start of recursive call 26: End of recursive call: and 3 xjuncts. [2018-04-05 16:40:40,496 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 49 treesize of output 41 [2018-04-05 16:40:40,497 INFO L267 ElimStorePlain]: Start of recursive call 27: End of recursive call: and 1 xjuncts. [2018-04-05 16:40:40,500 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 45 treesize of output 37 [2018-04-05 16:40:40,501 INFO L267 ElimStorePlain]: Start of recursive call 28: End of recursive call: and 1 xjuncts. [2018-04-05 16:40:43,434 INFO L477 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 1 select indices, 1 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 55 treesize of output 48 [2018-04-05 16:40:43,435 INFO L267 ElimStorePlain]: Start of recursive call 29: End of recursive call: and 1 xjuncts. [2018-04-05 16:40:43,443 INFO L477 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 1 select indices, 1 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 51 treesize of output 44 [2018-04-05 16:40:43,444 INFO L267 ElimStorePlain]: Start of recursive call 30: End of recursive call: and 1 xjuncts. [2018-04-05 16:40:45,867 INFO L477 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 3 select indices, 3 select index equivalence classes, 4 disjoint index pairs (out of 3 index pairs), introduced 0 new quantified variables, introduced 1 case distinctions, treesize of input 60 treesize of output 64 [2018-04-05 16:40:45,901 INFO L267 ElimStorePlain]: Start of recursive call 31: End of recursive call: and 2 xjuncts. [2018-04-05 16:40:50,612 INFO L700 Elim1Store]: detected not equals via solver [2018-04-05 16:40:50,642 INFO L477 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 3 select indices, 3 select index equivalence classes, 3 disjoint index pairs (out of 3 index pairs), introduced 1 new quantified variables, introduced 1 case distinctions, treesize of input 56 treesize of output 65 [2018-04-05 16:40:50,643 INFO L267 ElimStorePlain]: Start of recursive call 32: End of recursive call: and 2 xjuncts. [2018-04-05 16:40:50,656 INFO L700 Elim1Store]: detected not equals via solver [2018-04-05 16:40:50,664 INFO L700 Elim1Store]: detected not equals via solver [2018-04-05 16:40:50,675 INFO L700 Elim1Store]: detected not equals via solver [2018-04-05 16:40:50,693 INFO L477 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 3 select indices, 3 select index equivalence classes, 3 disjoint index pairs (out of 3 index pairs), introduced 0 new quantified variables, introduced 1 case distinctions, treesize of input 51 treesize of output 57 [2018-04-05 16:40:50,694 INFO L267 ElimStorePlain]: Start of recursive call 33: End of recursive call: and 2 xjuncts. [2018-04-05 16:40:53,021 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 64 treesize of output 56 [2018-04-05 16:40:53,022 INFO L267 ElimStorePlain]: Start of recursive call 34: End of recursive call: and 1 xjuncts. [2018-04-05 16:40:59,148 INFO L700 Elim1Store]: detected not equals via solver [2018-04-05 16:40:59,155 INFO L700 Elim1Store]: detected not equals via solver [2018-04-05 16:40:59,176 INFO L700 Elim1Store]: detected not equals via solver [2018-04-05 16:40:59,197 INFO L477 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 3 select indices, 3 select index equivalence classes, 3 disjoint index pairs (out of 3 index pairs), introduced 0 new quantified variables, introduced 1 case distinctions, treesize of input 56 treesize of output 60 [2018-04-05 16:40:59,198 INFO L267 ElimStorePlain]: Start of recursive call 35: End of recursive call: and 2 xjuncts. [2018-04-05 16:41:01,655 INFO L700 Elim1Store]: detected not equals via solver [2018-04-05 16:41:01,666 INFO L700 Elim1Store]: detected not equals via solver [2018-04-05 16:41:01,674 INFO L700 Elim1Store]: detected not equals via solver [2018-04-05 16:41:01,709 INFO L700 Elim1Store]: detected not equals via solver [2018-04-05 16:41:01,810 INFO L477 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 5 select indices, 5 select index equivalence classes, 7 disjoint index pairs (out of 10 index pairs), introduced 0 new quantified variables, introduced 4 case distinctions, treesize of input 60 treesize of output 109 [2018-04-05 16:41:01,812 INFO L267 ElimStorePlain]: Start of recursive call 36: End of recursive call: and 8 xjuncts. [2018-04-05 16:41:06,446 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 60 treesize of output 52 [2018-04-05 16:41:06,446 INFO L267 ElimStorePlain]: Start of recursive call 37: End of recursive call: and 1 xjuncts. [2018-04-05 16:41:18,310 INFO L477 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 3 select indices, 3 select index equivalence classes, 4 disjoint index pairs (out of 3 index pairs), introduced 0 new quantified variables, introduced 1 case distinctions, treesize of input 56 treesize of output 60 [2018-04-05 16:41:18,311 INFO L267 ElimStorePlain]: Start of recursive call 38: End of recursive call: and 2 xjuncts. [2018-04-05 16:41:20,964 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 72 treesize of output 67 [2018-04-05 16:41:20,965 INFO L267 ElimStorePlain]: Start of recursive call 39: End of recursive call: and 1 xjuncts. [2018-04-05 16:41:20,969 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 61 treesize of output 56 [2018-04-05 16:41:20,970 INFO L267 ElimStorePlain]: Start of recursive call 40: End of recursive call: and 1 xjuncts. [2018-04-05 16:41:20,979 INFO L477 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 1 select indices, 1 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 79 treesize of output 77 [2018-04-05 16:41:20,979 INFO L267 ElimStorePlain]: Start of recursive call 41: End of recursive call: and 1 xjuncts. [2018-04-05 16:41:20,986 INFO L477 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 1 select indices, 1 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 78 treesize of output 76 [2018-04-05 16:41:20,987 INFO L267 ElimStorePlain]: Start of recursive call 42: End of recursive call: and 1 xjuncts. [2018-04-05 16:41:20,991 INFO L477 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 1 select indices, 1 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 68 treesize of output 66 [2018-04-05 16:41:20,992 INFO L267 ElimStorePlain]: Start of recursive call 43: End of recursive call: and 1 xjuncts. [2018-04-05 16:41:23,579 INFO L700 Elim1Store]: detected not equals via solver [2018-04-05 16:41:23,644 INFO L303 Elim1Store]: Index analysis took 108 ms [2018-04-05 16:41:23,699 INFO L477 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 4 select indices, 4 select index equivalence classes, 4 disjoint index pairs (out of 6 index pairs), introduced 2 new quantified variables, introduced 2 case distinctions, treesize of input 52 treesize of output 72 [2018-04-05 16:41:23,700 INFO L267 ElimStorePlain]: Start of recursive call 44: End of recursive call: and 3 xjuncts. [2018-04-05 16:41:26,280 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 64 treesize of output 56 [2018-04-05 16:41:26,281 INFO L267 ElimStorePlain]: Start of recursive call 45: End of recursive call: and 1 xjuncts. [2018-04-05 16:41:29,361 INFO L477 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 2 select indices, 2 select index equivalence classes, 2 disjoint index pairs (out of 1 index pairs), introduced 1 new quantified variables, introduced 1 case distinctions, treesize of input 46 treesize of output 45 [2018-04-05 16:41:29,390 INFO L267 ElimStorePlain]: Start of recursive call 46: End of recursive call: and 2 xjuncts. [2018-04-05 16:41:29,489 INFO L477 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 2 select indices, 2 select index equivalence classes, 2 disjoint index pairs (out of 1 index pairs), introduced 1 new quantified variables, introduced 1 case distinctions, treesize of input 50 treesize of output 49 [2018-04-05 16:41:29,490 INFO L267 ElimStorePlain]: Start of recursive call 47: End of recursive call: and 2 xjuncts. [2018-04-05 16:41:33,148 INFO L477 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 1 select indices, 1 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 52 treesize of output 45 [2018-04-05 16:41:33,149 INFO L267 ElimStorePlain]: Start of recursive call 48: End of recursive call: and 1 xjuncts. [2018-04-05 16:41:35,280 INFO L700 Elim1Store]: detected not equals via solver [2018-04-05 16:41:35,370 INFO L303 Elim1Store]: Index analysis took 136 ms [2018-04-05 16:41:35,497 INFO L477 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 3 select indices, 3 select index equivalence classes, 3 disjoint index pairs (out of 3 index pairs), introduced 1 new quantified variables, introduced 1 case distinctions, treesize of input 45 treesize of output 54 [2018-04-05 16:41:35,498 INFO L267 ElimStorePlain]: Start of recursive call 49: End of recursive call: and 2 xjuncts. [2018-04-05 16:41:38,358 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 56 treesize of output 48 [2018-04-05 16:41:38,358 INFO L267 ElimStorePlain]: Start of recursive call 50: End of recursive call: and 1 xjuncts. [2018-04-05 16:41:45,054 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 60 treesize of output 52 [2018-04-05 16:41:45,055 INFO L267 ElimStorePlain]: Start of recursive call 51: End of recursive call: and 1 xjuncts. [2018-04-05 16:41:46,894 INFO L477 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 2 select indices, 2 select index equivalence classes, 2 disjoint index pairs (out of 1 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 47 treesize of output 44 [2018-04-05 16:41:46,894 INFO L267 ElimStorePlain]: Start of recursive call 52: End of recursive call: and 1 xjuncts. [2018-04-05 16:41:48,610 INFO L700 Elim1Store]: detected not equals via solver [2018-04-05 16:41:48,634 INFO L477 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 3 select indices, 3 select index equivalence classes, 3 disjoint index pairs (out of 3 index pairs), introduced 1 new quantified variables, introduced 1 case distinctions, treesize of input 52 treesize of output 61 [2018-04-05 16:41:48,635 INFO L267 ElimStorePlain]: Start of recursive call 53: End of recursive call: and 2 xjuncts. [2018-04-05 16:41:48,655 INFO L700 Elim1Store]: detected not equals via solver [2018-04-05 16:41:48,663 INFO L700 Elim1Store]: detected not equals via solver [2018-04-05 16:41:48,681 INFO L700 Elim1Store]: detected not equals via solver [2018-04-05 16:41:48,699 INFO L477 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 3 select indices, 3 select index equivalence classes, 3 disjoint index pairs (out of 3 index pairs), introduced 0 new quantified variables, introduced 1 case distinctions, treesize of input 47 treesize of output 53 [2018-04-05 16:41:48,699 INFO L267 ElimStorePlain]: Start of recursive call 54: End of recursive call: and 2 xjuncts. [2018-04-05 16:41:50,371 INFO L700 Elim1Store]: detected not equals via solver [2018-04-05 16:41:50,408 INFO L700 Elim1Store]: detected not equals via solver [2018-04-05 16:41:50,518 INFO L700 Elim1Store]: detected not equals via solver [2018-04-05 16:41:50,520 INFO L303 Elim1Store]: Index analysis took 170 ms [2018-04-05 16:41:50,644 INFO L477 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 4 select indices, 4 select index equivalence classes, 5 disjoint index pairs (out of 6 index pairs), introduced 0 new quantified variables, introduced 3 case distinctions, treesize of input 52 treesize of output 82 [2018-04-05 16:41:50,646 INFO L267 ElimStorePlain]: Start of recursive call 55: End of recursive call: and 8 xjuncts. [2018-04-05 16:41:52,513 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 49 treesize of output 44 [2018-04-05 16:41:52,514 INFO L267 ElimStorePlain]: Start of recursive call 56: End of recursive call: and 1 xjuncts. [2018-04-05 16:42:05,912 INFO L700 Elim1Store]: detected not equals via solver [2018-04-05 16:42:05,945 INFO L303 Elim1Store]: Index analysis took 189 ms [2018-04-05 16:42:06,048 INFO L477 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 5 select indices, 5 select index equivalence classes, 6 disjoint index pairs (out of 10 index pairs), introduced 2 new quantified variables, introduced 5 case distinctions, treesize of input 48 treesize of output 94 [2018-04-05 16:42:06,055 INFO L267 ElimStorePlain]: Start of recursive call 57: End of recursive call: and 30 xjuncts. [2018-04-05 16:42:20,010 INFO L267 ElimStorePlain]: Start of recursive call 2: 57 dim-1 vars, End of recursive call: and 20 xjuncts. [2018-04-05 16:42:22,147 INFO L267 ElimStorePlain]: Start of recursive call 1: 9 dim-0 vars, 1 dim-2 vars, End of recursive call: and 5 xjuncts. [2018-04-05 16:42:22,183 INFO L202 ElimStorePlain]: Needed 57 recursive calls to eliminate 10 variables, input treesize:86, output treesize:135 [2018-04-05 16:42:22,746 WARN L151 SmtUtils]: Spent 358ms on a formula simplification. DAG size of input: 25 DAG size of output 20 [2018-04-05 16:42:23,067 WARN L148 SmtUtils]: Spent 114ms on a formula simplification that was a NOOP. DAG size: 16 [2018-04-05 16:42:23,958 INFO L134 CoverageAnalysis]: Checked inductivity of 30 backedges. 6 proven. 24 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-04-05 16:42:23,958 INFO L314 TraceCheckSpWp]: Computing backward predicates... [2018-04-05 16:42:27,322 WARN L148 SmtUtils]: Spent 114ms on a formula simplification that was a NOOP. DAG size: 39 [2018-04-05 16:42:28,157 WARN L151 SmtUtils]: Spent 150ms on a formula simplification. DAG size of input: 42 DAG size of output 28 [2018-04-05 16:42:29,157 WARN L148 SmtUtils]: Spent 100ms on a formula simplification that was a NOOP. DAG size: 33 [2018-04-05 16:42:34,594 INFO L477 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 16 treesize of output 12 [2018-04-05 16:42:34,594 INFO L267 ElimStorePlain]: Start of recursive call 2: End of recursive call: and 1 xjuncts. [2018-04-05 16:42:34,687 INFO L477 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 2 new quantified variables, introduced 0 case distinctions, treesize of input 239 treesize of output 119 [2018-04-05 16:42:35,770 WARN L151 SmtUtils]: Spent 1080ms on a formula simplification. DAG size of input: 74 DAG size of output 55 [2018-04-05 16:42:35,774 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 12 treesize of output 11 [2018-04-05 16:42:35,775 INFO L267 ElimStorePlain]: Start of recursive call 4: End of recursive call: and 1 xjuncts. [2018-04-05 16:42:36,075 INFO L303 Elim1Store]: Index analysis took 109 ms [2018-04-05 16:42:36,157 INFO L477 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 0 stores, 3 select indices, 3 select index equivalence classes, 0 disjoint index pairs (out of 3 index pairs), introduced 3 new quantified variables, introduced 3 case distinctions, treesize of input 66 treesize of output 76 [2018-04-05 16:42:36,181 INFO L682 Elim1Store]: detected equality via solver [2018-04-05 16:42:36,360 INFO L477 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 5 select indices, 5 select index equivalence classes, 9 disjoint index pairs (out of 10 index pairs), introduced 4 new quantified variables, introduced 3 case distinctions, treesize of input 52 treesize of output 86 [2018-04-05 16:42:36,362 INFO L267 ElimStorePlain]: Start of recursive call 6: End of recursive call: and 8 xjuncts. [2018-04-05 16:42:37,846 INFO L477 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 1 select indices, 1 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 58 treesize of output 50 [2018-04-05 16:42:37,847 INFO L267 ElimStorePlain]: Start of recursive call 7: End of recursive call: and 1 xjuncts. [2018-04-05 16:42:38,352 INFO L682 Elim1Store]: detected equality via solver [2018-04-05 16:42:38,356 INFO L682 Elim1Store]: detected equality via solver [2018-04-05 16:42:38,374 INFO L682 Elim1Store]: detected equality via solver [2018-04-05 16:42:38,399 INFO L477 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 4 select indices, 4 select index equivalence classes, 8 disjoint index pairs (out of 6 index pairs), introduced 2 new quantified variables, introduced 1 case distinctions, treesize of input 58 treesize of output 68 [2018-04-05 16:42:38,400 INFO L267 ElimStorePlain]: Start of recursive call 8: End of recursive call: and 2 xjuncts. [2018-04-05 16:42:38,856 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 1 case distinctions, treesize of input 58 treesize of output 56 [2018-04-05 16:42:38,857 INFO L267 ElimStorePlain]: Start of recursive call 9: End of recursive call: and 2 xjuncts. [2018-04-05 16:42:39,952 INFO L477 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 1 select indices, 1 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 46 treesize of output 44 [2018-04-05 16:42:39,953 INFO L267 ElimStorePlain]: Start of recursive call 10: End of recursive call: and 1 xjuncts. [2018-04-05 16:42:40,426 INFO L682 Elim1Store]: detected equality via solver [2018-04-05 16:42:40,432 INFO L477 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 3 select indices, 3 select index equivalence classes, 7 disjoint index pairs (out of 3 index pairs), introduced 2 new quantified variables, introduced 0 case distinctions, treesize of input 45 treesize of output 49 [2018-04-05 16:42:40,432 INFO L267 ElimStorePlain]: Start of recursive call 11: End of recursive call: and 1 xjuncts. [2018-04-05 16:42:40,437 INFO L682 Elim1Store]: detected equality via solver [2018-04-05 16:42:40,438 INFO L477 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 3 select indices, 3 select index equivalence classes, 6 disjoint index pairs (out of 3 index pairs), introduced 2 new quantified variables, introduced 0 case distinctions, treesize of input 45 treesize of output 47 [2018-04-05 16:42:40,438 INFO L267 ElimStorePlain]: Start of recursive call 12: End of recursive call: and 1 xjuncts. [2018-04-05 16:42:41,758 INFO L682 Elim1Store]: detected equality via solver [2018-04-05 16:42:41,807 INFO L477 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 4 select indices, 4 select index equivalence classes, 8 disjoint index pairs (out of 6 index pairs), introduced 3 new quantified variables, introduced 1 case distinctions, treesize of input 47 treesize of output 63 [2018-04-05 16:42:41,808 INFO L267 ElimStorePlain]: Start of recursive call 13: End of recursive call: and 2 xjuncts. [2018-04-05 16:42:43,102 INFO L267 ElimStorePlain]: Start of recursive call 5: 13 dim-1 vars, End of recursive call: and 4 xjuncts. [2018-04-05 16:42:43,246 INFO L477 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 0 stores, 3 select indices, 3 select index equivalence classes, 1 disjoint index pairs (out of 3 index pairs), introduced 3 new quantified variables, introduced 3 case distinctions, treesize of input 62 treesize of output 72 [2018-04-05 16:42:43,258 INFO L682 Elim1Store]: detected equality via solver [2018-04-05 16:42:43,262 INFO L682 Elim1Store]: detected equality via solver [2018-04-05 16:42:43,265 INFO L682 Elim1Store]: detected equality via solver [2018-04-05 16:42:43,266 INFO L682 Elim1Store]: detected equality via solver [2018-04-05 16:42:43,276 INFO L682 Elim1Store]: detected equality via solver [2018-04-05 16:42:43,277 INFO L477 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 3 select indices, 3 select index equivalence classes, 6 disjoint index pairs (out of 3 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 54 treesize of output 56 [2018-04-05 16:42:43,277 INFO L267 ElimStorePlain]: Start of recursive call 15: End of recursive call: and 1 xjuncts. [2018-04-05 16:42:43,935 INFO L682 Elim1Store]: detected equality via solver [2018-04-05 16:42:43,947 INFO L682 Elim1Store]: detected equality via solver [2018-04-05 16:42:43,985 INFO L682 Elim1Store]: detected equality via solver [2018-04-05 16:42:44,001 INFO L303 Elim1Store]: Index analysis took 103 ms [2018-04-05 16:42:44,023 INFO L477 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 4 select indices, 4 select index equivalence classes, 7 disjoint index pairs (out of 6 index pairs), introduced 2 new quantified variables, introduced 1 case distinctions, treesize of input 54 treesize of output 66 [2018-04-05 16:42:44,024 INFO L267 ElimStorePlain]: Start of recursive call 16: End of recursive call: and 2 xjuncts. [2018-04-05 16:42:44,853 INFO L682 Elim1Store]: detected equality via solver [2018-04-05 16:42:44,969 INFO L477 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 5 select indices, 5 select index equivalence classes, 8 disjoint index pairs (out of 10 index pairs), introduced 4 new quantified variables, introduced 3 case distinctions, treesize of input 48 treesize of output 82 [2018-04-05 16:42:44,972 INFO L267 ElimStorePlain]: Start of recursive call 17: End of recursive call: and 8 xjuncts. [2018-04-05 16:42:45,431 INFO L477 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 1 select indices, 1 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 42 treesize of output 40 [2018-04-05 16:42:45,432 INFO L267 ElimStorePlain]: Start of recursive call 18: End of recursive call: and 1 xjuncts. [2018-04-05 16:42:47,369 INFO L682 Elim1Store]: detected equality via solver [2018-04-05 16:42:47,371 INFO L682 Elim1Store]: detected equality via solver [2018-04-05 16:42:47,402 INFO L682 Elim1Store]: detected equality via solver [2018-04-05 16:42:47,461 INFO L477 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 4 select indices, 4 select index equivalence classes, 7 disjoint index pairs (out of 6 index pairs), introduced 2 new quantified variables, introduced 1 case distinctions, treesize of input 54 treesize of output 69 [2018-04-05 16:42:47,462 INFO L267 ElimStorePlain]: Start of recursive call 19: End of recursive call: and 2 xjuncts. [2018-04-05 16:42:48,022 INFO L477 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 2 select indices, 2 select index equivalence classes, 2 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 1 case distinctions, treesize of input 41 treesize of output 45 [2018-04-05 16:42:48,023 INFO L267 ElimStorePlain]: Start of recursive call 20: End of recursive call: and 2 xjuncts. [2018-04-05 16:42:49,054 INFO L477 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 1 select indices, 1 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 39 treesize of output 37 [2018-04-05 16:42:49,055 INFO L267 ElimStorePlain]: Start of recursive call 21: End of recursive call: and 1 xjuncts. [2018-04-05 16:42:49,716 INFO L267 ElimStorePlain]: Start of recursive call 14: 13 dim-1 vars, End of recursive call: and 4 xjuncts. [2018-04-05 16:42:49,813 INFO L477 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 0 stores, 3 select indices, 3 select index equivalence classes, 1 disjoint index pairs (out of 3 index pairs), introduced 3 new quantified variables, introduced 3 case distinctions, treesize of input 55 treesize of output 65 [2018-04-05 16:42:49,833 INFO L682 Elim1Store]: detected equality via solver [2018-04-05 16:42:49,834 INFO L682 Elim1Store]: detected equality via solver [2018-04-05 16:42:49,838 INFO L682 Elim1Store]: detected equality via solver [2018-04-05 16:42:49,843 INFO L682 Elim1Store]: detected equality via solver [2018-04-05 16:42:49,857 INFO L682 Elim1Store]: detected equality via solver [2018-04-05 16:42:49,858 INFO L477 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 3 select indices, 3 select index equivalence classes, 5 disjoint index pairs (out of 3 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 47 treesize of output 49 [2018-04-05 16:42:49,858 INFO L267 ElimStorePlain]: Start of recursive call 23: End of recursive call: and 1 xjuncts. [2018-04-05 16:42:50,357 INFO L477 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 1 select indices, 1 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 50 treesize of output 42 [2018-04-05 16:42:50,358 INFO L267 ElimStorePlain]: Start of recursive call 24: End of recursive call: and 1 xjuncts. [2018-04-05 16:42:50,838 INFO L682 Elim1Store]: detected equality via solver [2018-04-05 16:42:50,949 INFO L477 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 5 select indices, 5 select index equivalence classes, 7 disjoint index pairs (out of 10 index pairs), introduced 4 new quantified variables, introduced 3 case distinctions, treesize of input 44 treesize of output 78 [2018-04-05 16:42:50,955 INFO L267 ElimStorePlain]: Start of recursive call 25: End of recursive call: and 8 xjuncts. [2018-04-05 16:42:51,583 INFO L477 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 1 select indices, 1 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 47 treesize of output 39 [2018-04-05 16:42:51,584 INFO L267 ElimStorePlain]: Start of recursive call 26: End of recursive call: and 1 xjuncts. [2018-04-05 16:42:52,059 INFO L682 Elim1Store]: detected equality via solver [2018-04-05 16:42:52,092 INFO L477 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 4 select indices, 4 select index equivalence classes, 6 disjoint index pairs (out of 6 index pairs), introduced 3 new quantified variables, introduced 1 case distinctions, treesize of input 39 treesize of output 55 [2018-04-05 16:42:52,093 INFO L267 ElimStorePlain]: Start of recursive call 27: End of recursive call: and 2 xjuncts. [2018-04-05 16:42:52,726 INFO L477 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 2 select indices, 2 select index equivalence classes, 2 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 1 case distinctions, treesize of input 34 treesize of output 38 [2018-04-05 16:42:52,727 INFO L267 ElimStorePlain]: Start of recursive call 28: End of recursive call: and 2 xjuncts. [2018-04-05 16:42:53,872 INFO L682 Elim1Store]: detected equality via solver [2018-04-05 16:42:54,057 INFO L477 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 5 select indices, 5 select index equivalence classes, 7 disjoint index pairs (out of 10 index pairs), introduced 4 new quantified variables, introduced 3 case distinctions, treesize of input 44 treesize of output 78 [2018-04-05 16:42:54,098 INFO L267 ElimStorePlain]: Start of recursive call 29: End of recursive call: and 8 xjuncts. [2018-04-05 16:42:54,731 INFO L682 Elim1Store]: detected equality via solver [2018-04-05 16:42:54,737 INFO L682 Elim1Store]: detected equality via solver [2018-04-05 16:42:54,749 INFO L682 Elim1Store]: detected equality via solver [2018-04-05 16:42:54,778 INFO L477 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 4 select indices, 4 select index equivalence classes, 6 disjoint index pairs (out of 6 index pairs), introduced 2 new quantified variables, introduced 1 case distinctions, treesize of input 44 treesize of output 59 [2018-04-05 16:42:54,779 INFO L267 ElimStorePlain]: Start of recursive call 30: End of recursive call: and 2 xjuncts. [2018-04-05 16:42:55,082 INFO L477 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 1 select indices, 1 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 32 treesize of output 30 [2018-04-05 16:42:55,083 INFO L267 ElimStorePlain]: Start of recursive call 31: End of recursive call: and 1 xjuncts. [2018-04-05 16:42:55,945 INFO L682 Elim1Store]: detected equality via solver [2018-04-05 16:42:56,427 INFO L477 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 5 select indices, 5 select index equivalence classes, 7 disjoint index pairs (out of 10 index pairs), introduced 4 new quantified variables, introduced 3 case distinctions, treesize of input 41 treesize of output 75 [2018-04-05 16:42:56,429 INFO L267 ElimStorePlain]: Start of recursive call 32: End of recursive call: and 8 xjuncts. [2018-04-05 16:42:56,928 INFO L267 ElimStorePlain]: Start of recursive call 22: 13 dim-1 vars, End of recursive call: and 4 xjuncts. [2018-04-05 16:42:57,117 INFO L477 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 0 stores, 3 select indices, 3 select index equivalence classes, 1 disjoint index pairs (out of 3 index pairs), introduced 3 new quantified variables, introduced 3 case distinctions, treesize of input 62 treesize of output 72 [2018-04-05 16:42:57,124 INFO L477 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 1 select indices, 1 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 54 treesize of output 46 [2018-04-05 16:42:57,125 INFO L267 ElimStorePlain]: Start of recursive call 34: End of recursive call: and 1 xjuncts. [2018-04-05 16:42:57,834 INFO L682 Elim1Store]: detected equality via solver [2018-04-05 16:42:57,888 INFO L477 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 4 select indices, 4 select index equivalence classes, 7 disjoint index pairs (out of 6 index pairs), introduced 3 new quantified variables, introduced 1 case distinctions, treesize of input 46 treesize of output 62 [2018-04-05 16:42:57,889 INFO L267 ElimStorePlain]: Start of recursive call 35: End of recursive call: and 2 xjuncts. [2018-04-05 16:42:58,993 INFO L682 Elim1Store]: detected equality via solver [2018-04-05 16:42:58,997 INFO L682 Elim1Store]: detected equality via solver [2018-04-05 16:42:59,001 INFO L682 Elim1Store]: detected equality via solver [2018-04-05 16:42:59,005 INFO L682 Elim1Store]: detected equality via solver [2018-04-05 16:42:59,017 INFO L682 Elim1Store]: detected equality via solver [2018-04-05 16:42:59,018 INFO L477 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 3 select indices, 3 select index equivalence classes, 6 disjoint index pairs (out of 3 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 57 treesize of output 54 [2018-04-05 16:42:59,018 INFO L267 ElimStorePlain]: Start of recursive call 36: End of recursive call: and 1 xjuncts. [2018-04-05 16:42:59,993 INFO L682 Elim1Store]: detected equality via solver [2018-04-05 16:43:00,199 INFO L477 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 5 select indices, 5 select index equivalence classes, 8 disjoint index pairs (out of 10 index pairs), introduced 4 new quantified variables, introduced 3 case distinctions, treesize of input 48 treesize of output 82 [2018-04-05 16:43:00,202 INFO L267 ElimStorePlain]: Start of recursive call 37: End of recursive call: and 8 xjuncts. [2018-04-05 16:43:00,916 INFO L682 Elim1Store]: detected equality via solver [2018-04-05 16:43:00,918 INFO L682 Elim1Store]: detected equality via solver [2018-04-05 16:43:00,937 INFO L682 Elim1Store]: detected equality via solver [2018-04-05 16:43:00,987 INFO L477 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 4 select indices, 4 select index equivalence classes, 7 disjoint index pairs (out of 6 index pairs), introduced 2 new quantified variables, introduced 1 case distinctions, treesize of input 54 treesize of output 64 [2018-04-05 16:43:00,988 INFO L267 ElimStorePlain]: Start of recursive call 38: End of recursive call: and 2 xjuncts. [2018-04-05 16:43:01,621 INFO L477 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 1 select indices, 1 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 44 treesize of output 42 [2018-04-05 16:43:01,622 INFO L267 ElimStorePlain]: Start of recursive call 39: End of recursive call: and 1 xjuncts. [2018-04-05 16:43:02,149 INFO L477 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 1 select indices, 1 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 39 treesize of output 37 [2018-04-05 16:43:02,150 INFO L267 ElimStorePlain]: Start of recursive call 40: End of recursive call: and 1 xjuncts. [2018-04-05 16:43:02,750 INFO L682 Elim1Store]: detected equality via solver [2018-04-05 16:43:02,754 INFO L682 Elim1Store]: detected equality via solver [2018-04-05 16:43:02,758 INFO L682 Elim1Store]: detected equality via solver [2018-04-05 16:43:02,762 INFO L682 Elim1Store]: detected equality via solver [2018-04-05 16:43:02,774 INFO L682 Elim1Store]: detected equality via solver [2018-04-05 16:43:02,775 INFO L477 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 3 select indices, 3 select index equivalence classes, 6 disjoint index pairs (out of 3 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 54 treesize of output 51 [2018-04-05 16:43:02,776 INFO L267 ElimStorePlain]: Start of recursive call 41: End of recursive call: and 1 xjuncts. [2018-04-05 16:43:03,253 INFO L477 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 1 select indices, 1 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 42 treesize of output 40 [2018-04-05 16:43:03,254 INFO L267 ElimStorePlain]: Start of recursive call 42: End of recursive call: and 1 xjuncts. [2018-04-05 16:43:04,309 INFO L477 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 2 select indices, 2 select index equivalence classes, 2 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 1 case distinctions, treesize of input 41 treesize of output 45 [2018-04-05 16:43:04,310 INFO L267 ElimStorePlain]: Start of recursive call 43: End of recursive call: and 2 xjuncts. [2018-04-05 16:43:05,529 INFO L267 ElimStorePlain]: Start of recursive call 33: 13 dim-1 vars, End of recursive call: and 4 xjuncts. [2018-04-05 16:43:06,366 INFO L267 ElimStorePlain]: Start of recursive call 3: 1 dim-1 vars, 1 dim-2 vars, End of recursive call: and 32 xjuncts. [2018-04-05 16:43:07,461 INFO L267 ElimStorePlain]: Start of recursive call 1: 8 dim-0 vars, 1 dim-1 vars, 1 dim-2 vars, End of recursive call: and 3 xjuncts. [2018-04-05 16:43:07,461 INFO L202 ElimStorePlain]: Needed 43 recursive calls to eliminate 10 variables, input treesize:260, output treesize:37 [2018-04-05 16:43:08,092 INFO L134 CoverageAnalysis]: Checked inductivity of 30 backedges. 0 proven. 30 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-04-05 16:43:08,128 INFO L320 seRefinementStrategy]: Constructing automaton from 0 perfect and 2 imperfect interpolant sequences. [2018-04-05 16:43:08,129 INFO L335 seRefinementStrategy]: Number of different interpolants: perfect sequences [] imperfect sequences [30, 27] total 55 [2018-04-05 16:43:08,129 INFO L442 AbstractCegarLoop]: Interpolant automaton has 56 states [2018-04-05 16:43:08,129 INFO L132 InterpolantAutomaton]: Constructing interpolant automaton starting with 56 interpolants. [2018-04-05 16:43:08,130 INFO L133 InterpolantAutomaton]: CoverageRelationStatistics Valid=255, Invalid=2824, Unknown=1, NotChecked=0, Total=3080 [2018-04-05 16:43:08,130 INFO L87 Difference]: Start difference. First operand 128 states and 134 transitions. Second operand 56 states. [2018-04-05 16:43:10,938 WARN L151 SmtUtils]: Spent 131ms on a formula simplification. DAG size of input: 46 DAG size of output 42 [2018-04-05 16:43:11,880 WARN L151 SmtUtils]: Spent 108ms on a formula simplification. DAG size of input: 74 DAG size of output 62 [2018-04-05 16:43:12,343 WARN L151 SmtUtils]: Spent 123ms on a formula simplification. DAG size of input: 80 DAG size of output 68 [2018-04-05 16:43:17,108 WARN L151 SmtUtils]: Spent 4413ms on a formula simplification. DAG size of input: 87 DAG size of output 75 [2018-04-05 16:43:17,736 WARN L151 SmtUtils]: Spent 259ms on a formula simplification. DAG size of input: 87 DAG size of output 72 [2018-04-05 16:43:18,268 WARN L151 SmtUtils]: Spent 225ms on a formula simplification. DAG size of input: 91 DAG size of output 76 [2018-04-05 16:43:18,996 WARN L151 SmtUtils]: Spent 481ms on a formula simplification. DAG size of input: 104 DAG size of output 80 [2018-04-05 16:43:19,702 WARN L151 SmtUtils]: Spent 423ms on a formula simplification. DAG size of input: 116 DAG size of output 96 [2018-04-05 16:43:20,324 WARN L151 SmtUtils]: Spent 435ms on a formula simplification. DAG size of input: 111 DAG size of output 83 [2018-04-05 16:43:20,825 WARN L151 SmtUtils]: Spent 227ms on a formula simplification. DAG size of input: 93 DAG size of output 81 [2018-04-05 16:43:21,298 WARN L151 SmtUtils]: Spent 216ms on a formula simplification. DAG size of input: 99 DAG size of output 78 [2018-04-05 16:43:21,762 WARN L151 SmtUtils]: Spent 273ms on a formula simplification. DAG size of input: 91 DAG size of output 79 [2018-04-05 16:43:22,188 WARN L151 SmtUtils]: Spent 186ms on a formula simplification. DAG size of input: 97 DAG size of output 76 [2018-04-05 16:43:22,527 WARN L151 SmtUtils]: Spent 163ms on a formula simplification. DAG size of input: 85 DAG size of output 73 [2018-04-05 16:43:22,975 WARN L151 SmtUtils]: Spent 170ms on a formula simplification. DAG size of input: 105 DAG size of output 69 [2018-04-05 16:43:23,463 WARN L151 SmtUtils]: Spent 143ms on a formula simplification. DAG size of input: 85 DAG size of output 73 [2018-04-05 16:43:23,859 WARN L151 SmtUtils]: Spent 199ms on a formula simplification. DAG size of input: 104 DAG size of output 88 [2018-04-05 16:43:25,271 WARN L151 SmtUtils]: Spent 240ms on a formula simplification. DAG size of input: 106 DAG size of output 90 [2018-04-05 16:43:25,794 WARN L151 SmtUtils]: Spent 175ms on a formula simplification. DAG size of input: 91 DAG size of output 59 [2018-04-05 16:43:26,479 WARN L151 SmtUtils]: Spent 132ms on a formula simplification. DAG size of input: 87 DAG size of output 75 [2018-04-05 16:43:27,434 WARN L151 SmtUtils]: Spent 238ms on a formula simplification. DAG size of input: 93 DAG size of output 81