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 --cacsl2boogietranslator.bitprecise.bitfields false -tc ../../../trunk/examples/toolchains/AutomizerC.xml -s ../../../trunk/examples/settings/cade18-smtinterpol/svcomp-DerefFreeMemtrack-32bit-Automizer_Camel.epf -i ../../../trunk/examples/svcomp/array-memsafety/cstrncmp-alloca_true-valid-memsafety_true-termination.i -------------------------------------------------------------------------------- This is Ultimate 0.1.23-408c70d-m [2018-04-12 10:17:35,089 INFO L170 SettingsManager]: Resetting all preferences to default values... [2018-04-12 10:17:35,091 INFO L174 SettingsManager]: Resetting UltimateCore preferences to default values [2018-04-12 10:17:35,102 INFO L177 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2018-04-12 10:17:35,102 INFO L174 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2018-04-12 10:17:35,103 INFO L174 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2018-04-12 10:17:35,104 INFO L174 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2018-04-12 10:17:35,106 INFO L174 SettingsManager]: Resetting LassoRanker preferences to default values [2018-04-12 10:17:35,107 INFO L174 SettingsManager]: Resetting Reaching Definitions preferences to default values [2018-04-12 10:17:35,108 INFO L174 SettingsManager]: Resetting SyntaxChecker preferences to default values [2018-04-12 10:17:35,108 INFO L177 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2018-04-12 10:17:35,109 INFO L174 SettingsManager]: Resetting LTL2Aut preferences to default values [2018-04-12 10:17:35,109 INFO L174 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2018-04-12 10:17:35,110 INFO L174 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2018-04-12 10:17:35,111 INFO L174 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2018-04-12 10:17:35,112 INFO L174 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2018-04-12 10:17:35,114 INFO L174 SettingsManager]: Resetting CodeCheck preferences to default values [2018-04-12 10:17:35,115 INFO L174 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2018-04-12 10:17:35,116 INFO L174 SettingsManager]: Resetting RCFGBuilder preferences to default values [2018-04-12 10:17:35,117 INFO L174 SettingsManager]: Resetting TraceAbstraction preferences to default values [2018-04-12 10:17:35,119 INFO L177 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2018-04-12 10:17:35,119 INFO L177 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2018-04-12 10:17:35,119 INFO L174 SettingsManager]: Resetting IcfgTransformer preferences to default values [2018-04-12 10:17:35,120 INFO L174 SettingsManager]: Resetting Boogie Printer preferences to default values [2018-04-12 10:17:35,120 INFO L174 SettingsManager]: Resetting Witness Printer preferences to default values [2018-04-12 10:17:35,121 INFO L177 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2018-04-12 10:17:35,122 INFO L174 SettingsManager]: Resetting CDTParser preferences to default values [2018-04-12 10:17:35,122 INFO L174 SettingsManager]: Resetting PEA to Boogie preferences to default values [2018-04-12 10:17:35,122 INFO L177 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2018-04-12 10:17:35,123 INFO L174 SettingsManager]: Resetting Witness Parser preferences to default values [2018-04-12 10:17:35,123 INFO L181 SettingsManager]: Finished resetting all preferences to default values... [2018-04-12 10:17:35,123 INFO L98 SettingsManager]: Beginning loading settings from /home/ultimate/work/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/settings/cade18-smtinterpol/svcomp-DerefFreeMemtrack-32bit-Automizer_Camel.epf [2018-04-12 10:17:35,132 INFO L110 SettingsManager]: Loading preferences was successful [2018-04-12 10:17:35,132 INFO L112 SettingsManager]: Preferences different from defaults after loading the file: [2018-04-12 10:17:35,133 INFO L131 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2018-04-12 10:17:35,133 INFO L133 SettingsManager]: * Create parallel compositions if possible=false [2018-04-12 10:17:35,133 INFO L133 SettingsManager]: * Use SBE=true [2018-04-12 10:17:35,133 INFO L131 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2018-04-12 10:17:35,133 INFO L133 SettingsManager]: * sizeof long=4 [2018-04-12 10:17:35,134 INFO L133 SettingsManager]: * Check unreachability of error function in SV-COMP mode=false [2018-04-12 10:17:35,134 INFO L133 SettingsManager]: * Overapproximate operations on floating types=true [2018-04-12 10:17:35,134 INFO L133 SettingsManager]: * sizeof POINTER=4 [2018-04-12 10:17:35,134 INFO L133 SettingsManager]: * Check division by zero=IGNORE [2018-04-12 10:17:35,134 INFO L133 SettingsManager]: * Check for the main procedure if all allocated memory was freed=true [2018-04-12 10:17:35,134 INFO L133 SettingsManager]: * Bitprecise bitfields=true [2018-04-12 10:17:35,135 INFO L133 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2018-04-12 10:17:35,135 INFO L133 SettingsManager]: * sizeof long double=12 [2018-04-12 10:17:35,135 INFO L131 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2018-04-12 10:17:35,135 INFO L133 SettingsManager]: * Size of a code block=SequenceOfStatements [2018-04-12 10:17:35,135 INFO L133 SettingsManager]: * To the following directory=./dump/ [2018-04-12 10:17:35,135 INFO L133 SettingsManager]: * SMT solver=External_DefaultMode [2018-04-12 10:17:35,135 INFO L133 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2018-04-12 10:17:35,135 INFO L131 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2018-04-12 10:17:35,136 INFO L133 SettingsManager]: * Interpolant automaton=TWOTRACK [2018-04-12 10:17:35,136 INFO L133 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2018-04-12 10:17:35,136 INFO L133 SettingsManager]: * Trace refinement strategy=CAMEL Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Bitprecise bitfields -> false [2018-04-12 10:17:35,162 INFO L81 nceAwareModelManager]: Repository-Root is: /tmp [2018-04-12 10:17:35,172 INFO L266 ainManager$Toolchain]: [Toolchain 1]: Parser(s) successfully (re)initialized [2018-04-12 10:17:35,175 INFO L222 ainManager$Toolchain]: [Toolchain 1]: Toolchain data selected. [2018-04-12 10:17:35,176 INFO L271 PluginConnector]: Initializing CDTParser... [2018-04-12 10:17:35,177 INFO L276 PluginConnector]: CDTParser initialized [2018-04-12 10:17:35,177 INFO L431 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /home/ultimate/work/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/svcomp/array-memsafety/cstrncmp-alloca_true-valid-memsafety_true-termination.i [2018-04-12 10:17:35,457 INFO L225 CDTParser]: Created temporary CDT project at /home/ultimate/work/ultimate/releaseScripts/default/UAutomizer-linux/data/FLAGd227bac27 [2018-04-12 10:17:35,613 INFO L287 CDTParser]: IsIndexed: true [2018-04-12 10:17:35,614 INFO L288 CDTParser]: Found 1 translation units. [2018-04-12 10:17:35,614 INFO L168 CDTParser]: Scanning cstrncmp-alloca_true-valid-memsafety_true-termination.i [2018-04-12 10:17:35,620 INFO L210 ultiparseSymbolTable]: Include resolver: [2018-04-12 10:17:35,620 INFO L215 ultiparseSymbolTable]: [2018-04-12 10:17:35,620 INFO L218 ultiparseSymbolTable]: Function table: [2018-04-12 10:17:35,621 INFO L221 ultiparseSymbolTable]: Function definition of null ('main') in cstrncmp-alloca_true-valid-memsafety_true-termination.i [2018-04-12 10:17:35,621 INFO L221 ultiparseSymbolTable]: Function definition of __U_MULTI_fcstrncmp_alloca_true_valid_memsafety_true_termination_i____bswap_32 ('__bswap_32') in cstrncmp-alloca_true-valid-memsafety_true-termination.i [2018-04-12 10:17:35,621 INFO L221 ultiparseSymbolTable]: Function definition of __U_MULTI_fcstrncmp_alloca_true_valid_memsafety_true_termination_i____bswap_64 ('__bswap_64') in cstrncmp-alloca_true-valid-memsafety_true-termination.i [2018-04-12 10:17:35,621 INFO L221 ultiparseSymbolTable]: Function definition of __U_MULTI_fcstrncmp_alloca_true_valid_memsafety_true_termination_i__ ('') in cstrncmp-alloca_true-valid-memsafety_true-termination.i [2018-04-12 10:17:35,621 INFO L227 ultiparseSymbolTable]: Global variable table: [2018-04-12 10:17:35,621 INFO L230 ultiparseSymbolTable]: Global variable declaration of __U_MULTI_fcstrncmp_alloca_true_valid_memsafety_true_termination_i____key_t in cstrncmp-alloca_true-valid-memsafety_true-termination.i [2018-04-12 10:17:35,621 INFO L230 ultiparseSymbolTable]: Global variable declaration of __U_MULTI_fcstrncmp_alloca_true_valid_memsafety_true_termination_i____clockid_t in cstrncmp-alloca_true-valid-memsafety_true-termination.i [2018-04-12 10:17:35,621 INFO L230 ultiparseSymbolTable]: Global variable declaration of __U_MULTI_fcstrncmp_alloca_true_valid_memsafety_true_termination_i__clockid_t in cstrncmp-alloca_true-valid-memsafety_true-termination.i [2018-04-12 10:17:35,621 INFO L230 ultiparseSymbolTable]: Global variable declaration of __U_MULTI_fcstrncmp_alloca_true_valid_memsafety_true_termination_i____clock_t in cstrncmp-alloca_true-valid-memsafety_true-termination.i [2018-04-12 10:17:35,621 INFO L230 ultiparseSymbolTable]: Global variable declaration of __U_MULTI_fcstrncmp_alloca_true_valid_memsafety_true_termination_i__dev_t in cstrncmp-alloca_true-valid-memsafety_true-termination.i [2018-04-12 10:17:35,622 INFO L230 ultiparseSymbolTable]: Global variable declaration of __U_MULTI_fcstrncmp_alloca_true_valid_memsafety_true_termination_i__u_int16_t in cstrncmp-alloca_true-valid-memsafety_true-termination.i [2018-04-12 10:17:35,622 INFO L230 ultiparseSymbolTable]: Global variable declaration of __U_MULTI_fcstrncmp_alloca_true_valid_memsafety_true_termination_i____u_int in cstrncmp-alloca_true-valid-memsafety_true-termination.i [2018-04-12 10:17:35,622 INFO L230 ultiparseSymbolTable]: Global variable declaration of __U_MULTI_fcstrncmp_alloca_true_valid_memsafety_true_termination_i__quad_t in cstrncmp-alloca_true-valid-memsafety_true-termination.i [2018-04-12 10:17:35,622 INFO L230 ultiparseSymbolTable]: Global variable declaration of __U_MULTI_fcstrncmp_alloca_true_valid_memsafety_true_termination_i__loff_t in cstrncmp-alloca_true-valid-memsafety_true-termination.i [2018-04-12 10:17:35,622 INFO L230 ultiparseSymbolTable]: Global variable declaration of __U_MULTI_fcstrncmp_alloca_true_valid_memsafety_true_termination_i__u_int8_t in cstrncmp-alloca_true-valid-memsafety_true-termination.i [2018-04-12 10:17:35,622 INFO L230 ultiparseSymbolTable]: Global variable declaration of __U_MULTI_fcstrncmp_alloca_true_valid_memsafety_true_termination_i__pthread_cond_t in cstrncmp-alloca_true-valid-memsafety_true-termination.i [2018-04-12 10:17:35,622 INFO L230 ultiparseSymbolTable]: Global variable declaration of __U_MULTI_fcstrncmp_alloca_true_valid_memsafety_true_termination_i____uint8_t in cstrncmp-alloca_true-valid-memsafety_true-termination.i [2018-04-12 10:17:35,622 INFO L230 ultiparseSymbolTable]: Global variable declaration of __U_MULTI_fcstrncmp_alloca_true_valid_memsafety_true_termination_i__fsid_t in cstrncmp-alloca_true-valid-memsafety_true-termination.i [2018-04-12 10:17:35,622 INFO L230 ultiparseSymbolTable]: Global variable declaration of __U_MULTI_fcstrncmp_alloca_true_valid_memsafety_true_termination_i__uint in cstrncmp-alloca_true-valid-memsafety_true-termination.i [2018-04-12 10:17:35,622 INFO L230 ultiparseSymbolTable]: Global variable declaration of __U_MULTI_fcstrncmp_alloca_true_valid_memsafety_true_termination_i____blkcnt_t in cstrncmp-alloca_true-valid-memsafety_true-termination.i [2018-04-12 10:17:35,622 INFO L230 ultiparseSymbolTable]: Global variable declaration of __U_MULTI_fcstrncmp_alloca_true_valid_memsafety_true_termination_i__pthread_condattr_t in cstrncmp-alloca_true-valid-memsafety_true-termination.i [2018-04-12 10:17:35,622 INFO L230 ultiparseSymbolTable]: Global variable declaration of __U_MULTI_fcstrncmp_alloca_true_valid_memsafety_true_termination_i____sigset_t in cstrncmp-alloca_true-valid-memsafety_true-termination.i [2018-04-12 10:17:35,622 INFO L230 ultiparseSymbolTable]: Global variable declaration of __U_MULTI_fcstrncmp_alloca_true_valid_memsafety_true_termination_i____WAIT_STATUS in cstrncmp-alloca_true-valid-memsafety_true-termination.i [2018-04-12 10:17:35,622 INFO L230 ultiparseSymbolTable]: Global variable declaration of __U_MULTI_fcstrncmp_alloca_true_valid_memsafety_true_termination_i____daddr_t in cstrncmp-alloca_true-valid-memsafety_true-termination.i [2018-04-12 10:17:35,623 INFO L230 ultiparseSymbolTable]: Global variable declaration of __U_MULTI_fcstrncmp_alloca_true_valid_memsafety_true_termination_i__pthread_spinlock_t in cstrncmp-alloca_true-valid-memsafety_true-termination.i [2018-04-12 10:17:35,623 INFO L230 ultiparseSymbolTable]: Global variable declaration of __U_MULTI_fcstrncmp_alloca_true_valid_memsafety_true_termination_i__id_t in cstrncmp-alloca_true-valid-memsafety_true-termination.i [2018-04-12 10:17:35,623 INFO L230 ultiparseSymbolTable]: Global variable declaration of __U_MULTI_fcstrncmp_alloca_true_valid_memsafety_true_termination_i__int64_t in cstrncmp-alloca_true-valid-memsafety_true-termination.i [2018-04-12 10:17:35,623 INFO L230 ultiparseSymbolTable]: Global variable declaration of __U_MULTI_fcstrncmp_alloca_true_valid_memsafety_true_termination_i__pthread_barrier_t in cstrncmp-alloca_true-valid-memsafety_true-termination.i [2018-04-12 10:17:35,623 INFO L230 ultiparseSymbolTable]: Global variable declaration of __U_MULTI_fcstrncmp_alloca_true_valid_memsafety_true_termination_i____u_quad_t in cstrncmp-alloca_true-valid-memsafety_true-termination.i [2018-04-12 10:17:35,623 INFO L230 ultiparseSymbolTable]: Global variable declaration of __U_MULTI_fcstrncmp_alloca_true_valid_memsafety_true_termination_i____pid_t in cstrncmp-alloca_true-valid-memsafety_true-termination.i [2018-04-12 10:17:35,623 INFO L230 ultiparseSymbolTable]: Global variable declaration of __U_MULTI_fcstrncmp_alloca_true_valid_memsafety_true_termination_i____syscall_slong_t in cstrncmp-alloca_true-valid-memsafety_true-termination.i [2018-04-12 10:17:35,623 INFO L230 ultiparseSymbolTable]: Global variable declaration of __U_MULTI_fcstrncmp_alloca_true_valid_memsafety_true_termination_i__ushort in cstrncmp-alloca_true-valid-memsafety_true-termination.i [2018-04-12 10:17:35,623 INFO L230 ultiparseSymbolTable]: Global variable declaration of __U_MULTI_fcstrncmp_alloca_true_valid_memsafety_true_termination_i____int64_t in cstrncmp-alloca_true-valid-memsafety_true-termination.i [2018-04-12 10:17:35,623 INFO L230 ultiparseSymbolTable]: Global variable declaration of __U_MULTI_fcstrncmp_alloca_true_valid_memsafety_true_termination_i____quad_t in cstrncmp-alloca_true-valid-memsafety_true-termination.i [2018-04-12 10:17:35,623 INFO L230 ultiparseSymbolTable]: Global variable declaration of __U_MULTI_fcstrncmp_alloca_true_valid_memsafety_true_termination_i__wchar_t in cstrncmp-alloca_true-valid-memsafety_true-termination.i [2018-04-12 10:17:35,623 INFO L230 ultiparseSymbolTable]: Global variable declaration of __U_MULTI_fcstrncmp_alloca_true_valid_memsafety_true_termination_i__register_t in cstrncmp-alloca_true-valid-memsafety_true-termination.i [2018-04-12 10:17:35,623 INFO L230 ultiparseSymbolTable]: Global variable declaration of __U_MULTI_fcstrncmp_alloca_true_valid_memsafety_true_termination_i____useconds_t in cstrncmp-alloca_true-valid-memsafety_true-termination.i [2018-04-12 10:17:35,623 INFO L230 ultiparseSymbolTable]: Global variable declaration of __U_MULTI_fcstrncmp_alloca_true_valid_memsafety_true_termination_i__pthread_attr_t in cstrncmp-alloca_true-valid-memsafety_true-termination.i [2018-04-12 10:17:35,624 INFO L230 ultiparseSymbolTable]: Global variable declaration of __U_MULTI_fcstrncmp_alloca_true_valid_memsafety_true_termination_i____nlink_t in cstrncmp-alloca_true-valid-memsafety_true-termination.i [2018-04-12 10:17:35,624 INFO L230 ultiparseSymbolTable]: Global variable declaration of __U_MULTI_fcstrncmp_alloca_true_valid_memsafety_true_termination_i____fsblkcnt64_t in cstrncmp-alloca_true-valid-memsafety_true-termination.i [2018-04-12 10:17:35,624 INFO L230 ultiparseSymbolTable]: Global variable declaration of __U_MULTI_fcstrncmp_alloca_true_valid_memsafety_true_termination_i__sigset_t in cstrncmp-alloca_true-valid-memsafety_true-termination.i [2018-04-12 10:17:35,624 INFO L230 ultiparseSymbolTable]: Global variable declaration of __U_MULTI_fcstrncmp_alloca_true_valid_memsafety_true_termination_i____gid_t in cstrncmp-alloca_true-valid-memsafety_true-termination.i [2018-04-12 10:17:35,624 INFO L230 ultiparseSymbolTable]: Global variable declaration of __U_MULTI_fcstrncmp_alloca_true_valid_memsafety_true_termination_i____sig_atomic_t in cstrncmp-alloca_true-valid-memsafety_true-termination.i [2018-04-12 10:17:35,624 INFO L230 ultiparseSymbolTable]: Global variable declaration of __U_MULTI_fcstrncmp_alloca_true_valid_memsafety_true_termination_i____timer_t in cstrncmp-alloca_true-valid-memsafety_true-termination.i [2018-04-12 10:17:35,624 INFO L230 ultiparseSymbolTable]: Global variable declaration of __U_MULTI_fcstrncmp_alloca_true_valid_memsafety_true_termination_i____ino64_t in cstrncmp-alloca_true-valid-memsafety_true-termination.i [2018-04-12 10:17:35,624 INFO L230 ultiparseSymbolTable]: Global variable declaration of __U_MULTI_fcstrncmp_alloca_true_valid_memsafety_true_termination_i____syscall_ulong_t in cstrncmp-alloca_true-valid-memsafety_true-termination.i [2018-04-12 10:17:35,624 INFO L230 ultiparseSymbolTable]: Global variable declaration of __U_MULTI_fcstrncmp_alloca_true_valid_memsafety_true_termination_i__pthread_t in cstrncmp-alloca_true-valid-memsafety_true-termination.i [2018-04-12 10:17:35,624 INFO L230 ultiparseSymbolTable]: Global variable declaration of __U_MULTI_fcstrncmp_alloca_true_valid_memsafety_true_termination_i____uid_t in cstrncmp-alloca_true-valid-memsafety_true-termination.i [2018-04-12 10:17:35,624 INFO L230 ultiparseSymbolTable]: Global variable declaration of __U_MULTI_fcstrncmp_alloca_true_valid_memsafety_true_termination_i__ssize_t in cstrncmp-alloca_true-valid-memsafety_true-termination.i [2018-04-12 10:17:35,624 INFO L230 ultiparseSymbolTable]: Global variable declaration of __U_MULTI_fcstrncmp_alloca_true_valid_memsafety_true_termination_i____fd_mask in cstrncmp-alloca_true-valid-memsafety_true-termination.i [2018-04-12 10:17:35,625 INFO L230 ultiparseSymbolTable]: Global variable declaration of __U_MULTI_fcstrncmp_alloca_true_valid_memsafety_true_termination_i__nlink_t in cstrncmp-alloca_true-valid-memsafety_true-termination.i [2018-04-12 10:17:35,625 INFO L230 ultiparseSymbolTable]: Global variable declaration of __U_MULTI_fcstrncmp_alloca_true_valid_memsafety_true_termination_i__u_int32_t in cstrncmp-alloca_true-valid-memsafety_true-termination.i [2018-04-12 10:17:35,625 INFO L230 ultiparseSymbolTable]: Global variable declaration of __U_MULTI_fcstrncmp_alloca_true_valid_memsafety_true_termination_i__key_t in cstrncmp-alloca_true-valid-memsafety_true-termination.i [2018-04-12 10:17:35,625 INFO L230 ultiparseSymbolTable]: Global variable declaration of __U_MULTI_fcstrncmp_alloca_true_valid_memsafety_true_termination_i__fd_mask in cstrncmp-alloca_true-valid-memsafety_true-termination.i [2018-04-12 10:17:35,625 INFO L230 ultiparseSymbolTable]: Global variable declaration of __U_MULTI_fcstrncmp_alloca_true_valid_memsafety_true_termination_i__fsfilcnt_t in cstrncmp-alloca_true-valid-memsafety_true-termination.i [2018-04-12 10:17:35,625 INFO L230 ultiparseSymbolTable]: Global variable declaration of __U_MULTI_fcstrncmp_alloca_true_valid_memsafety_true_termination_i____ssize_t in cstrncmp-alloca_true-valid-memsafety_true-termination.i [2018-04-12 10:17:35,625 INFO L230 ultiparseSymbolTable]: Global variable declaration of __U_MULTI_fcstrncmp_alloca_true_valid_memsafety_true_termination_i__pthread_rwlockattr_t in cstrncmp-alloca_true-valid-memsafety_true-termination.i [2018-04-12 10:17:35,625 INFO L230 ultiparseSymbolTable]: Global variable declaration of __U_MULTI_fcstrncmp_alloca_true_valid_memsafety_true_termination_i____blkcnt64_t in cstrncmp-alloca_true-valid-memsafety_true-termination.i [2018-04-12 10:17:35,625 INFO L230 ultiparseSymbolTable]: Global variable declaration of __U_MULTI_fcstrncmp_alloca_true_valid_memsafety_true_termination_i____fsword_t in cstrncmp-alloca_true-valid-memsafety_true-termination.i [2018-04-12 10:17:35,625 INFO L230 ultiparseSymbolTable]: Global variable declaration of __U_MULTI_fcstrncmp_alloca_true_valid_memsafety_true_termination_i__timer_t in cstrncmp-alloca_true-valid-memsafety_true-termination.i [2018-04-12 10:17:35,625 INFO L230 ultiparseSymbolTable]: Global variable declaration of __U_MULTI_fcstrncmp_alloca_true_valid_memsafety_true_termination_i____off_t in cstrncmp-alloca_true-valid-memsafety_true-termination.i [2018-04-12 10:17:35,625 INFO L230 ultiparseSymbolTable]: Global variable declaration of __U_MULTI_fcstrncmp_alloca_true_valid_memsafety_true_termination_i____uint64_t in cstrncmp-alloca_true-valid-memsafety_true-termination.i [2018-04-12 10:17:35,625 INFO L230 ultiparseSymbolTable]: Global variable declaration of __U_MULTI_fcstrncmp_alloca_true_valid_memsafety_true_termination_i__int32_t in cstrncmp-alloca_true-valid-memsafety_true-termination.i [2018-04-12 10:17:35,626 INFO L230 ultiparseSymbolTable]: Global variable declaration of __U_MULTI_fcstrncmp_alloca_true_valid_memsafety_true_termination_i____suseconds_t in cstrncmp-alloca_true-valid-memsafety_true-termination.i [2018-04-12 10:17:35,626 INFO L230 ultiparseSymbolTable]: Global variable declaration of __U_MULTI_fcstrncmp_alloca_true_valid_memsafety_true_termination_i__time_t in cstrncmp-alloca_true-valid-memsafety_true-termination.i [2018-04-12 10:17:35,626 INFO L230 ultiparseSymbolTable]: Global variable declaration of __U_MULTI_fcstrncmp_alloca_true_valid_memsafety_true_termination_i____int32_t in cstrncmp-alloca_true-valid-memsafety_true-termination.i [2018-04-12 10:17:35,626 INFO L230 ultiparseSymbolTable]: Global variable declaration of __U_MULTI_fcstrncmp_alloca_true_valid_memsafety_true_termination_i__fsblkcnt_t in cstrncmp-alloca_true-valid-memsafety_true-termination.i [2018-04-12 10:17:35,626 INFO L230 ultiparseSymbolTable]: Global variable declaration of __U_MULTI_fcstrncmp_alloca_true_valid_memsafety_true_termination_i__div_t in cstrncmp-alloca_true-valid-memsafety_true-termination.i [2018-04-12 10:17:35,626 INFO L230 ultiparseSymbolTable]: Global variable declaration of __U_MULTI_fcstrncmp_alloca_true_valid_memsafety_true_termination_i____id_t in cstrncmp-alloca_true-valid-memsafety_true-termination.i [2018-04-12 10:17:35,626 INFO L230 ultiparseSymbolTable]: Global variable declaration of __U_MULTI_fcstrncmp_alloca_true_valid_memsafety_true_termination_i____uint32_t in cstrncmp-alloca_true-valid-memsafety_true-termination.i [2018-04-12 10:17:35,626 INFO L230 ultiparseSymbolTable]: Global variable declaration of __U_MULTI_fcstrncmp_alloca_true_valid_memsafety_true_termination_i__caddr_t in cstrncmp-alloca_true-valid-memsafety_true-termination.i [2018-04-12 10:17:35,626 INFO L230 ultiparseSymbolTable]: Global variable declaration of __U_MULTI_fcstrncmp_alloca_true_valid_memsafety_true_termination_i____qaddr_t in cstrncmp-alloca_true-valid-memsafety_true-termination.i [2018-04-12 10:17:35,626 INFO L230 ultiparseSymbolTable]: Global variable declaration of __U_MULTI_fcstrncmp_alloca_true_valid_memsafety_true_termination_i____rlim64_t in cstrncmp-alloca_true-valid-memsafety_true-termination.i [2018-04-12 10:17:35,626 INFO L230 ultiparseSymbolTable]: Global variable declaration of __U_MULTI_fcstrncmp_alloca_true_valid_memsafety_true_termination_i____fsfilcnt_t in cstrncmp-alloca_true-valid-memsafety_true-termination.i [2018-04-12 10:17:35,627 INFO L230 ultiparseSymbolTable]: Global variable declaration of __U_MULTI_fcstrncmp_alloca_true_valid_memsafety_true_termination_i__pthread_mutexattr_t in cstrncmp-alloca_true-valid-memsafety_true-termination.i [2018-04-12 10:17:35,627 INFO L230 ultiparseSymbolTable]: Global variable declaration of __U_MULTI_fcstrncmp_alloca_true_valid_memsafety_true_termination_i__u_int in cstrncmp-alloca_true-valid-memsafety_true-termination.i [2018-04-12 10:17:35,627 INFO L230 ultiparseSymbolTable]: Global variable declaration of __U_MULTI_fcstrncmp_alloca_true_valid_memsafety_true_termination_i____blksize_t in cstrncmp-alloca_true-valid-memsafety_true-termination.i [2018-04-12 10:17:35,627 INFO L230 ultiparseSymbolTable]: Global variable declaration of __U_MULTI_fcstrncmp_alloca_true_valid_memsafety_true_termination_i__blksize_t in cstrncmp-alloca_true-valid-memsafety_true-termination.i [2018-04-12 10:17:35,627 INFO L230 ultiparseSymbolTable]: Global variable declaration of __U_MULTI_fcstrncmp_alloca_true_valid_memsafety_true_termination_i____off64_t in cstrncmp-alloca_true-valid-memsafety_true-termination.i [2018-04-12 10:17:35,627 INFO L230 ultiparseSymbolTable]: Global variable declaration of __U_MULTI_fcstrncmp_alloca_true_valid_memsafety_true_termination_i____time_t in cstrncmp-alloca_true-valid-memsafety_true-termination.i [2018-04-12 10:17:35,627 INFO L230 ultiparseSymbolTable]: Global variable declaration of __U_MULTI_fcstrncmp_alloca_true_valid_memsafety_true_termination_i____intptr_t in cstrncmp-alloca_true-valid-memsafety_true-termination.i [2018-04-12 10:17:35,627 INFO L230 ultiparseSymbolTable]: Global variable declaration of __U_MULTI_fcstrncmp_alloca_true_valid_memsafety_true_termination_i__int8_t in cstrncmp-alloca_true-valid-memsafety_true-termination.i [2018-04-12 10:17:35,627 INFO L230 ultiparseSymbolTable]: Global variable declaration of __U_MULTI_fcstrncmp_alloca_true_valid_memsafety_true_termination_i__size_t in cstrncmp-alloca_true-valid-memsafety_true-termination.i [2018-04-12 10:17:35,627 INFO L230 ultiparseSymbolTable]: Global variable declaration of __U_MULTI_fcstrncmp_alloca_true_valid_memsafety_true_termination_i____u_char in cstrncmp-alloca_true-valid-memsafety_true-termination.i [2018-04-12 10:17:35,628 INFO L230 ultiparseSymbolTable]: Global variable declaration of __U_MULTI_fcstrncmp_alloca_true_valid_memsafety_true_termination_i__pthread_key_t in cstrncmp-alloca_true-valid-memsafety_true-termination.i [2018-04-12 10:17:35,628 INFO L230 ultiparseSymbolTable]: Global variable declaration of __U_MULTI_fcstrncmp_alloca_true_valid_memsafety_true_termination_i__u_quad_t in cstrncmp-alloca_true-valid-memsafety_true-termination.i [2018-04-12 10:17:35,628 INFO L230 ultiparseSymbolTable]: Global variable declaration of __U_MULTI_fcstrncmp_alloca_true_valid_memsafety_true_termination_i__ino_t in cstrncmp-alloca_true-valid-memsafety_true-termination.i [2018-04-12 10:17:35,628 INFO L230 ultiparseSymbolTable]: Global variable declaration of __U_MULTI_fcstrncmp_alloca_true_valid_memsafety_true_termination_i__uid_t in cstrncmp-alloca_true-valid-memsafety_true-termination.i [2018-04-12 10:17:35,628 INFO L230 ultiparseSymbolTable]: Global variable declaration of __U_MULTI_fcstrncmp_alloca_true_valid_memsafety_true_termination_i__pthread_rwlock_t in cstrncmp-alloca_true-valid-memsafety_true-termination.i [2018-04-12 10:17:35,628 INFO L230 ultiparseSymbolTable]: Global variable declaration of __U_MULTI_fcstrncmp_alloca_true_valid_memsafety_true_termination_i____socklen_t in cstrncmp-alloca_true-valid-memsafety_true-termination.i [2018-04-12 10:17:35,628 INFO L230 ultiparseSymbolTable]: Global variable declaration of __U_MULTI_fcstrncmp_alloca_true_valid_memsafety_true_termination_i__lldiv_t in cstrncmp-alloca_true-valid-memsafety_true-termination.i [2018-04-12 10:17:35,628 INFO L230 ultiparseSymbolTable]: Global variable declaration of __U_MULTI_fcstrncmp_alloca_true_valid_memsafety_true_termination_i__pthread_mutex_t in cstrncmp-alloca_true-valid-memsafety_true-termination.i [2018-04-12 10:17:35,628 INFO L230 ultiparseSymbolTable]: Global variable declaration of __U_MULTI_fcstrncmp_alloca_true_valid_memsafety_true_termination_i__int16_t in cstrncmp-alloca_true-valid-memsafety_true-termination.i [2018-04-12 10:17:35,628 INFO L230 ultiparseSymbolTable]: Global variable declaration of __U_MULTI_fcstrncmp_alloca_true_valid_memsafety_true_termination_i____fsblkcnt_t in cstrncmp-alloca_true-valid-memsafety_true-termination.i [2018-04-12 10:17:35,628 INFO L230 ultiparseSymbolTable]: Global variable declaration of __U_MULTI_fcstrncmp_alloca_true_valid_memsafety_true_termination_i____pthread_list_t in cstrncmp-alloca_true-valid-memsafety_true-termination.i [2018-04-12 10:17:35,628 INFO L230 ultiparseSymbolTable]: Global variable declaration of __U_MULTI_fcstrncmp_alloca_true_valid_memsafety_true_termination_i__pthread_barrierattr_t in cstrncmp-alloca_true-valid-memsafety_true-termination.i [2018-04-12 10:17:35,628 INFO L230 ultiparseSymbolTable]: Global variable declaration of __U_MULTI_fcstrncmp_alloca_true_valid_memsafety_true_termination_i____rlim_t in cstrncmp-alloca_true-valid-memsafety_true-termination.i [2018-04-12 10:17:35,629 INFO L230 ultiparseSymbolTable]: Global variable declaration of __U_MULTI_fcstrncmp_alloca_true_valid_memsafety_true_termination_i____fsfilcnt64_t in cstrncmp-alloca_true-valid-memsafety_true-termination.i [2018-04-12 10:17:35,629 INFO L230 ultiparseSymbolTable]: Global variable declaration of __U_MULTI_fcstrncmp_alloca_true_valid_memsafety_true_termination_i__u_short in cstrncmp-alloca_true-valid-memsafety_true-termination.i [2018-04-12 10:17:35,629 INFO L230 ultiparseSymbolTable]: Global variable declaration of __U_MULTI_fcstrncmp_alloca_true_valid_memsafety_true_termination_i____int16_t in cstrncmp-alloca_true-valid-memsafety_true-termination.i [2018-04-12 10:17:35,629 INFO L230 ultiparseSymbolTable]: Global variable declaration of __U_MULTI_fcstrncmp_alloca_true_valid_memsafety_true_termination_i____u_long in cstrncmp-alloca_true-valid-memsafety_true-termination.i [2018-04-12 10:17:35,629 INFO L230 ultiparseSymbolTable]: Global variable declaration of __U_MULTI_fcstrncmp_alloca_true_valid_memsafety_true_termination_i__ldiv_t in cstrncmp-alloca_true-valid-memsafety_true-termination.i [2018-04-12 10:17:35,629 INFO L230 ultiparseSymbolTable]: Global variable declaration of __U_MULTI_fcstrncmp_alloca_true_valid_memsafety_true_termination_i__blkcnt_t in cstrncmp-alloca_true-valid-memsafety_true-termination.i [2018-04-12 10:17:35,629 INFO L230 ultiparseSymbolTable]: Global variable declaration of __U_MULTI_fcstrncmp_alloca_true_valid_memsafety_true_termination_i____int8_t in cstrncmp-alloca_true-valid-memsafety_true-termination.i [2018-04-12 10:17:35,629 INFO L230 ultiparseSymbolTable]: Global variable declaration of __U_MULTI_fcstrncmp_alloca_true_valid_memsafety_true_termination_i__gid_t in cstrncmp-alloca_true-valid-memsafety_true-termination.i [2018-04-12 10:17:35,629 INFO L230 ultiparseSymbolTable]: Global variable declaration of __U_MULTI_fcstrncmp_alloca_true_valid_memsafety_true_termination_i__ulong in cstrncmp-alloca_true-valid-memsafety_true-termination.i [2018-04-12 10:17:35,629 INFO L230 ultiparseSymbolTable]: Global variable declaration of __U_MULTI_fcstrncmp_alloca_true_valid_memsafety_true_termination_i__u_char in cstrncmp-alloca_true-valid-memsafety_true-termination.i [2018-04-12 10:17:35,629 INFO L230 ultiparseSymbolTable]: Global variable declaration of __U_MULTI_fcstrncmp_alloca_true_valid_memsafety_true_termination_i__off_t in cstrncmp-alloca_true-valid-memsafety_true-termination.i [2018-04-12 10:17:35,629 INFO L230 ultiparseSymbolTable]: Global variable declaration of __U_MULTI_fcstrncmp_alloca_true_valid_memsafety_true_termination_i__u_int64_t in cstrncmp-alloca_true-valid-memsafety_true-termination.i [2018-04-12 10:17:35,629 INFO L230 ultiparseSymbolTable]: Global variable declaration of __U_MULTI_fcstrncmp_alloca_true_valid_memsafety_true_termination_i__pthread_once_t in cstrncmp-alloca_true-valid-memsafety_true-termination.i [2018-04-12 10:17:35,629 INFO L230 ultiparseSymbolTable]: Global variable declaration of __U_MULTI_fcstrncmp_alloca_true_valid_memsafety_true_termination_i____mode_t in cstrncmp-alloca_true-valid-memsafety_true-termination.i [2018-04-12 10:17:35,629 INFO L230 ultiparseSymbolTable]: Global variable declaration of __U_MULTI_fcstrncmp_alloca_true_valid_memsafety_true_termination_i____uint16_t in cstrncmp-alloca_true-valid-memsafety_true-termination.i [2018-04-12 10:17:35,629 INFO L230 ultiparseSymbolTable]: Global variable declaration of __U_MULTI_fcstrncmp_alloca_true_valid_memsafety_true_termination_i____caddr_t in cstrncmp-alloca_true-valid-memsafety_true-termination.i [2018-04-12 10:17:35,630 INFO L230 ultiparseSymbolTable]: Global variable declaration of __U_MULTI_fcstrncmp_alloca_true_valid_memsafety_true_termination_i____ino_t in cstrncmp-alloca_true-valid-memsafety_true-termination.i [2018-04-12 10:17:35,630 INFO L230 ultiparseSymbolTable]: Global variable declaration of __U_MULTI_fcstrncmp_alloca_true_valid_memsafety_true_termination_i__u_long in cstrncmp-alloca_true-valid-memsafety_true-termination.i [2018-04-12 10:17:35,630 INFO L230 ultiparseSymbolTable]: Global variable declaration of __U_MULTI_fcstrncmp_alloca_true_valid_memsafety_true_termination_i____loff_t in cstrncmp-alloca_true-valid-memsafety_true-termination.i [2018-04-12 10:17:35,630 INFO L230 ultiparseSymbolTable]: Global variable declaration of __U_MULTI_fcstrncmp_alloca_true_valid_memsafety_true_termination_i____fsid_t in cstrncmp-alloca_true-valid-memsafety_true-termination.i [2018-04-12 10:17:35,630 INFO L230 ultiparseSymbolTable]: Global variable declaration of __U_MULTI_fcstrncmp_alloca_true_valid_memsafety_true_termination_i__clock_t in cstrncmp-alloca_true-valid-memsafety_true-termination.i [2018-04-12 10:17:35,630 INFO L230 ultiparseSymbolTable]: Global variable declaration of __U_MULTI_fcstrncmp_alloca_true_valid_memsafety_true_termination_i__pid_t in cstrncmp-alloca_true-valid-memsafety_true-termination.i [2018-04-12 10:17:35,630 INFO L230 ultiparseSymbolTable]: Global variable declaration of __U_MULTI_fcstrncmp_alloca_true_valid_memsafety_true_termination_i__daddr_t in cstrncmp-alloca_true-valid-memsafety_true-termination.i [2018-04-12 10:17:35,630 INFO L230 ultiparseSymbolTable]: Global variable declaration of __U_MULTI_fcstrncmp_alloca_true_valid_memsafety_true_termination_i__fd_set in cstrncmp-alloca_true-valid-memsafety_true-termination.i [2018-04-12 10:17:35,630 INFO L230 ultiparseSymbolTable]: Global variable declaration of __U_MULTI_fcstrncmp_alloca_true_valid_memsafety_true_termination_i____dev_t in cstrncmp-alloca_true-valid-memsafety_true-termination.i [2018-04-12 10:17:35,630 INFO L230 ultiparseSymbolTable]: Global variable declaration of __U_MULTI_fcstrncmp_alloca_true_valid_memsafety_true_termination_i__mode_t in cstrncmp-alloca_true-valid-memsafety_true-termination.i [2018-04-12 10:17:35,630 INFO L230 ultiparseSymbolTable]: Global variable declaration of __U_MULTI_fcstrncmp_alloca_true_valid_memsafety_true_termination_i__suseconds_t in cstrncmp-alloca_true-valid-memsafety_true-termination.i [2018-04-12 10:17:35,630 INFO L230 ultiparseSymbolTable]: Global variable declaration of __U_MULTI_fcstrncmp_alloca_true_valid_memsafety_true_termination_i____u_short in cstrncmp-alloca_true-valid-memsafety_true-termination.i [2018-04-12 10:17:35,643 INFO L330 CDTParser]: Deleted temporary CDT project at /home/ultimate/work/ultimate/releaseScripts/default/UAutomizer-linux/data/FLAGd227bac27 [2018-04-12 10:17:35,646 INFO L304 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2018-04-12 10:17:35,647 INFO L131 ToolchainWalker]: Walking toolchain with 4 elements. [2018-04-12 10:17:35,648 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2018-04-12 10:17:35,648 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2018-04-12 10:17:35,651 INFO L276 PluginConnector]: CACSL2BoogieTranslator initialized [2018-04-12 10:17:35,652 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 12.04 10:17:35" (1/1) ... [2018-04-12 10:17:35,654 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@682e508e and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.04 10:17:35, skipping insertion in model container [2018-04-12 10:17:35,654 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 12.04 10:17:35" (1/1) ... [2018-04-12 10:17:35,665 INFO L167 Dispatcher]: Using SV-COMP mode [2018-04-12 10:17:35,686 INFO L167 Dispatcher]: Using SV-COMP mode [2018-04-12 10:17:35,810 INFO L175 PostProcessor]: Settings: Checked method=main [2018-04-12 10:17:35,844 INFO L175 PostProcessor]: Settings: Checked method=main [2018-04-12 10:17:35,851 INFO L100 SccComputation]: Graph consists of 0 InCaSumBalls and 112 non ball SCCs. Number of states in SCCs 112. [2018-04-12 10:17:35,885 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.04 10:17:35 WrapperNode [2018-04-12 10:17:35,885 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2018-04-12 10:17:35,886 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2018-04-12 10:17:35,886 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2018-04-12 10:17:35,887 INFO L276 PluginConnector]: Boogie Preprocessor initialized [2018-04-12 10:17:35,898 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.04 10:17:35" (1/1) ... [2018-04-12 10:17:35,898 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.04 10:17:35" (1/1) ... [2018-04-12 10:17:35,911 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.04 10:17:35" (1/1) ... [2018-04-12 10:17:35,911 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.04 10:17:35" (1/1) ... [2018-04-12 10:17:35,918 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.04 10:17:35" (1/1) ... [2018-04-12 10:17:35,923 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.04 10:17:35" (1/1) ... [2018-04-12 10:17:35,925 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.04 10:17:35" (1/1) ... [2018-04-12 10:17:35,927 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2018-04-12 10:17:35,927 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2018-04-12 10:17:35,928 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2018-04-12 10:17:35,928 INFO L276 PluginConnector]: RCFGBuilder initialized [2018-04-12 10:17:35,928 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.04 10:17:35" (1/1) ... No working directory specified, using /home/ultimate/work/ultimate/releaseScripts/default/UAutomizer-linux/z3 Starting monitored process 1 with z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 1 with z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2018-04-12 10:17:36,009 INFO L136 BoogieDeclarations]: Found implementation of procedure ULTIMATE.init [2018-04-12 10:17:36,010 INFO L136 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2018-04-12 10:17:36,010 INFO L136 BoogieDeclarations]: Found implementation of procedure __U_MULTI_fcstrncmp_alloca_true_valid_memsafety_true_termination_i____bswap_32 [2018-04-12 10:17:36,010 INFO L136 BoogieDeclarations]: Found implementation of procedure __U_MULTI_fcstrncmp_alloca_true_valid_memsafety_true_termination_i____bswap_64 [2018-04-12 10:17:36,010 INFO L136 BoogieDeclarations]: Found implementation of procedure cstrncmp [2018-04-12 10:17:36,010 INFO L136 BoogieDeclarations]: Found implementation of procedure main [2018-04-12 10:17:36,010 INFO L128 BoogieDeclarations]: Found specification of procedure __U_MULTI_fcstrncmp_alloca_true_valid_memsafety_true_termination_i____bswap_32 [2018-04-12 10:17:36,010 INFO L128 BoogieDeclarations]: Found specification of procedure __U_MULTI_fcstrncmp_alloca_true_valid_memsafety_true_termination_i____bswap_64 [2018-04-12 10:17:36,010 INFO L128 BoogieDeclarations]: Found specification of procedure __ctype_get_mb_cur_max [2018-04-12 10:17:36,010 INFO L128 BoogieDeclarations]: Found specification of procedure atof [2018-04-12 10:17:36,010 INFO L128 BoogieDeclarations]: Found specification of procedure atoi [2018-04-12 10:17:36,010 INFO L128 BoogieDeclarations]: Found specification of procedure atol [2018-04-12 10:17:36,011 INFO L128 BoogieDeclarations]: Found specification of procedure atoll [2018-04-12 10:17:36,011 INFO L128 BoogieDeclarations]: Found specification of procedure strtod [2018-04-12 10:17:36,011 INFO L128 BoogieDeclarations]: Found specification of procedure strtof [2018-04-12 10:17:36,011 INFO L128 BoogieDeclarations]: Found specification of procedure strtold [2018-04-12 10:17:36,011 INFO L128 BoogieDeclarations]: Found specification of procedure strtol [2018-04-12 10:17:36,011 INFO L128 BoogieDeclarations]: Found specification of procedure strtoul [2018-04-12 10:17:36,011 INFO L128 BoogieDeclarations]: Found specification of procedure strtoq [2018-04-12 10:17:36,011 INFO L128 BoogieDeclarations]: Found specification of procedure strtouq [2018-04-12 10:17:36,011 INFO L128 BoogieDeclarations]: Found specification of procedure strtoll [2018-04-12 10:17:36,011 INFO L128 BoogieDeclarations]: Found specification of procedure strtoull [2018-04-12 10:17:36,011 INFO L128 BoogieDeclarations]: Found specification of procedure l64a [2018-04-12 10:17:36,012 INFO L128 BoogieDeclarations]: Found specification of procedure a64l [2018-04-12 10:17:36,012 INFO L128 BoogieDeclarations]: Found specification of procedure select [2018-04-12 10:17:36,012 INFO L128 BoogieDeclarations]: Found specification of procedure pselect [2018-04-12 10:17:36,012 INFO L128 BoogieDeclarations]: Found specification of procedure gnu_dev_major [2018-04-12 10:17:36,012 INFO L128 BoogieDeclarations]: Found specification of procedure gnu_dev_minor [2018-04-12 10:17:36,012 INFO L128 BoogieDeclarations]: Found specification of procedure gnu_dev_makedev [2018-04-12 10:17:36,012 INFO L128 BoogieDeclarations]: Found specification of procedure random [2018-04-12 10:17:36,012 INFO L128 BoogieDeclarations]: Found specification of procedure srandom [2018-04-12 10:17:36,012 INFO L128 BoogieDeclarations]: Found specification of procedure initstate [2018-04-12 10:17:36,012 INFO L128 BoogieDeclarations]: Found specification of procedure setstate [2018-04-12 10:17:36,013 INFO L128 BoogieDeclarations]: Found specification of procedure random_r [2018-04-12 10:17:36,013 INFO L128 BoogieDeclarations]: Found specification of procedure srandom_r [2018-04-12 10:17:36,013 INFO L128 BoogieDeclarations]: Found specification of procedure initstate_r [2018-04-12 10:17:36,013 INFO L128 BoogieDeclarations]: Found specification of procedure setstate_r [2018-04-12 10:17:36,013 INFO L128 BoogieDeclarations]: Found specification of procedure rand [2018-04-12 10:17:36,013 INFO L128 BoogieDeclarations]: Found specification of procedure srand [2018-04-12 10:17:36,013 INFO L128 BoogieDeclarations]: Found specification of procedure rand_r [2018-04-12 10:17:36,013 INFO L128 BoogieDeclarations]: Found specification of procedure drand48 [2018-04-12 10:17:36,013 INFO L128 BoogieDeclarations]: Found specification of procedure erand48 [2018-04-12 10:17:36,013 INFO L128 BoogieDeclarations]: Found specification of procedure lrand48 [2018-04-12 10:17:36,013 INFO L128 BoogieDeclarations]: Found specification of procedure nrand48 [2018-04-12 10:17:36,014 INFO L128 BoogieDeclarations]: Found specification of procedure mrand48 [2018-04-12 10:17:36,014 INFO L128 BoogieDeclarations]: Found specification of procedure jrand48 [2018-04-12 10:17:36,014 INFO L128 BoogieDeclarations]: Found specification of procedure srand48 [2018-04-12 10:17:36,014 INFO L128 BoogieDeclarations]: Found specification of procedure seed48 [2018-04-12 10:17:36,014 INFO L128 BoogieDeclarations]: Found specification of procedure lcong48 [2018-04-12 10:17:36,014 INFO L128 BoogieDeclarations]: Found specification of procedure drand48_r [2018-04-12 10:17:36,014 INFO L128 BoogieDeclarations]: Found specification of procedure erand48_r [2018-04-12 10:17:36,014 INFO L128 BoogieDeclarations]: Found specification of procedure lrand48_r [2018-04-12 10:17:36,014 INFO L128 BoogieDeclarations]: Found specification of procedure nrand48_r [2018-04-12 10:17:36,015 INFO L128 BoogieDeclarations]: Found specification of procedure mrand48_r [2018-04-12 10:17:36,015 INFO L128 BoogieDeclarations]: Found specification of procedure jrand48_r [2018-04-12 10:17:36,015 INFO L128 BoogieDeclarations]: Found specification of procedure srand48_r [2018-04-12 10:17:36,015 INFO L128 BoogieDeclarations]: Found specification of procedure seed48_r [2018-04-12 10:17:36,015 INFO L128 BoogieDeclarations]: Found specification of procedure lcong48_r [2018-04-12 10:17:36,015 INFO L128 BoogieDeclarations]: Found specification of procedure malloc [2018-04-12 10:17:36,015 INFO L128 BoogieDeclarations]: Found specification of procedure calloc [2018-04-12 10:17:36,015 INFO L128 BoogieDeclarations]: Found specification of procedure realloc [2018-04-12 10:17:36,015 INFO L128 BoogieDeclarations]: Found specification of procedure free [2018-04-12 10:17:36,015 INFO L128 BoogieDeclarations]: Found specification of procedure cfree [2018-04-12 10:17:36,015 INFO L128 BoogieDeclarations]: Found specification of procedure alloca [2018-04-12 10:17:36,016 INFO L128 BoogieDeclarations]: Found specification of procedure valloc [2018-04-12 10:17:36,016 INFO L128 BoogieDeclarations]: Found specification of procedure posix_memalign [2018-04-12 10:17:36,016 INFO L128 BoogieDeclarations]: Found specification of procedure abort [2018-04-12 10:17:36,016 INFO L128 BoogieDeclarations]: Found specification of procedure atexit [2018-04-12 10:17:36,016 INFO L128 BoogieDeclarations]: Found specification of procedure on_exit [2018-04-12 10:17:36,016 INFO L128 BoogieDeclarations]: Found specification of procedure exit [2018-04-12 10:17:36,016 INFO L128 BoogieDeclarations]: Found specification of procedure _Exit [2018-04-12 10:17:36,016 INFO L128 BoogieDeclarations]: Found specification of procedure getenv [2018-04-12 10:17:36,016 INFO L128 BoogieDeclarations]: Found specification of procedure putenv [2018-04-12 10:17:36,016 INFO L128 BoogieDeclarations]: Found specification of procedure setenv [2018-04-12 10:17:36,016 INFO L128 BoogieDeclarations]: Found specification of procedure unsetenv [2018-04-12 10:17:36,016 INFO L128 BoogieDeclarations]: Found specification of procedure clearenv [2018-04-12 10:17:36,016 INFO L128 BoogieDeclarations]: Found specification of procedure mktemp [2018-04-12 10:17:36,016 INFO L128 BoogieDeclarations]: Found specification of procedure mkstemp [2018-04-12 10:17:36,016 INFO L128 BoogieDeclarations]: Found specification of procedure mkstemps [2018-04-12 10:17:36,017 INFO L128 BoogieDeclarations]: Found specification of procedure mkdtemp [2018-04-12 10:17:36,017 INFO L128 BoogieDeclarations]: Found specification of procedure system [2018-04-12 10:17:36,017 INFO L128 BoogieDeclarations]: Found specification of procedure realpath [2018-04-12 10:17:36,017 INFO L128 BoogieDeclarations]: Found specification of procedure bsearch [2018-04-12 10:17:36,017 INFO L128 BoogieDeclarations]: Found specification of procedure qsort [2018-04-12 10:17:36,017 INFO L128 BoogieDeclarations]: Found specification of procedure abs [2018-04-12 10:17:36,017 INFO L128 BoogieDeclarations]: Found specification of procedure labs [2018-04-12 10:17:36,017 INFO L128 BoogieDeclarations]: Found specification of procedure llabs [2018-04-12 10:17:36,017 INFO L128 BoogieDeclarations]: Found specification of procedure div [2018-04-12 10:17:36,017 INFO L128 BoogieDeclarations]: Found specification of procedure ldiv [2018-04-12 10:17:36,017 INFO L128 BoogieDeclarations]: Found specification of procedure lldiv [2018-04-12 10:17:36,017 INFO L128 BoogieDeclarations]: Found specification of procedure ecvt [2018-04-12 10:17:36,017 INFO L128 BoogieDeclarations]: Found specification of procedure fcvt [2018-04-12 10:17:36,017 INFO L128 BoogieDeclarations]: Found specification of procedure gcvt [2018-04-12 10:17:36,017 INFO L128 BoogieDeclarations]: Found specification of procedure qecvt [2018-04-12 10:17:36,017 INFO L128 BoogieDeclarations]: Found specification of procedure qfcvt [2018-04-12 10:17:36,017 INFO L128 BoogieDeclarations]: Found specification of procedure qgcvt [2018-04-12 10:17:36,017 INFO L128 BoogieDeclarations]: Found specification of procedure ecvt_r [2018-04-12 10:17:36,018 INFO L128 BoogieDeclarations]: Found specification of procedure fcvt_r [2018-04-12 10:17:36,018 INFO L128 BoogieDeclarations]: Found specification of procedure qecvt_r [2018-04-12 10:17:36,018 INFO L128 BoogieDeclarations]: Found specification of procedure qfcvt_r [2018-04-12 10:17:36,018 INFO L128 BoogieDeclarations]: Found specification of procedure mblen [2018-04-12 10:17:36,018 INFO L128 BoogieDeclarations]: Found specification of procedure mbtowc [2018-04-12 10:17:36,018 INFO L128 BoogieDeclarations]: Found specification of procedure wctomb [2018-04-12 10:17:36,018 INFO L128 BoogieDeclarations]: Found specification of procedure mbstowcs [2018-04-12 10:17:36,018 INFO L128 BoogieDeclarations]: Found specification of procedure wcstombs [2018-04-12 10:17:36,018 INFO L128 BoogieDeclarations]: Found specification of procedure rpmatch [2018-04-12 10:17:36,018 INFO L128 BoogieDeclarations]: Found specification of procedure getsubopt [2018-04-12 10:17:36,019 INFO L128 BoogieDeclarations]: Found specification of procedure getloadavg [2018-04-12 10:17:36,019 INFO L128 BoogieDeclarations]: Found specification of procedure __VERIFIER_nondet_int [2018-04-12 10:17:36,019 INFO L128 BoogieDeclarations]: Found specification of procedure cstrncmp [2018-04-12 10:17:36,019 INFO L128 BoogieDeclarations]: Found specification of procedure read~int [2018-04-12 10:17:36,019 INFO L128 BoogieDeclarations]: Found specification of procedure main [2018-04-12 10:17:36,019 INFO L128 BoogieDeclarations]: Found specification of procedure #Ultimate.alloc [2018-04-12 10:17:36,019 INFO L128 BoogieDeclarations]: Found specification of procedure write~int [2018-04-12 10:17:36,019 INFO L128 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2018-04-12 10:17:36,019 INFO L128 BoogieDeclarations]: Found specification of procedure ULTIMATE.init [2018-04-12 10:17:36,019 INFO L128 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2018-04-12 10:17:36,019 INFO L128 BoogieDeclarations]: Found specification of procedure write~unchecked~int [2018-04-12 10:17:36,297 INFO L259 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2018-04-12 10:17:36,299 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 12.04 10:17:36 BoogieIcfgContainer [2018-04-12 10:17:36,299 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2018-04-12 10:17:36,300 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2018-04-12 10:17:36,300 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2018-04-12 10:17:36,302 INFO L276 PluginConnector]: TraceAbstraction initialized [2018-04-12 10:17:36,302 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 12.04 10:17:35" (1/3) ... [2018-04-12 10:17:36,303 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@3ac2bb3a and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 12.04 10:17:36, skipping insertion in model container [2018-04-12 10:17:36,303 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.04 10:17:35" (2/3) ... [2018-04-12 10:17:36,303 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@3ac2bb3a and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 12.04 10:17:36, skipping insertion in model container [2018-04-12 10:17:36,304 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 12.04 10:17:36" (3/3) ... [2018-04-12 10:17:36,305 INFO L107 eAbstractionObserver]: Analyzing ICFG cstrncmp-alloca_true-valid-memsafety_true-termination.i [2018-04-12 10:17:36,313 INFO L131 ceAbstractionStarter]: Automizer settings: Hoare:false NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2018-04-12 10:17:36,318 INFO L143 ceAbstractionStarter]: Appying trace abstraction to program that has 15 error locations. [2018-04-12 10:17:36,340 INFO L128 ementStrategyFactory]: Using default assertion order modulation [2018-04-12 10:17:36,340 INFO L369 AbstractCegarLoop]: Interprodecural is true [2018-04-12 10:17:36,340 INFO L370 AbstractCegarLoop]: Hoare is false [2018-04-12 10:17:36,340 INFO L371 AbstractCegarLoop]: Compute interpolants for FPandBP [2018-04-12 10:17:36,340 INFO L372 AbstractCegarLoop]: Backedges is TWOTRACK [2018-04-12 10:17:36,340 INFO L373 AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2018-04-12 10:17:36,340 INFO L374 AbstractCegarLoop]: Difference is false [2018-04-12 10:17:36,340 INFO L375 AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA [2018-04-12 10:17:36,341 INFO L380 AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == AllErrorsAtOnce======== [2018-04-12 10:17:36,341 INFO L87 2NestedWordAutomaton]: Mode: main mode - execution starts in main procedure [2018-04-12 10:17:36,349 INFO L276 IsEmpty]: Start isEmpty. Operand 61 states. [2018-04-12 10:17:36,355 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 14 [2018-04-12 10:17:36,355 INFO L347 BasicCegarLoop]: Found error trace [2018-04-12 10:17:36,356 INFO L355 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2018-04-12 10:17:36,356 INFO L408 AbstractCegarLoop]: === Iteration 1 === [mainErr3RequiresViolation, mainErr1RequiresViolation, mainErr2RequiresViolation, mainErr4EnsuresViolationMEMORY_LEAK, mainErr0RequiresViolation, cstrncmpErr1RequiresViolation, cstrncmpErr5RequiresViolation, cstrncmpErr6RequiresViolation, cstrncmpErr0RequiresViolation, cstrncmpErr4RequiresViolation, cstrncmpErr7RequiresViolation, cstrncmpErr2RequiresViolation, cstrncmpErr3RequiresViolation, cstrncmpErr8RequiresViolation, cstrncmpErr9RequiresViolation]=== [2018-04-12 10:17:36,358 INFO L82 PathProgramCache]: Analyzing trace with hash -878219724, now seen corresponding path program 1 times [2018-04-12 10:17:36,359 INFO L213 ckRefinementStrategy]: Switched to mode SMTINTERPOL_TREE_INTERPOLANTS [2018-04-12 10:17:36,360 INFO L68 tionRefinementEngine]: Using refinement strategy CamelRefinementStrategy [2018-04-12 10:17:36,388 INFO L119 rtionOrderModulation]: Craig nested/tree interpolation forces the following order [2018-04-12 10:17:36,388 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-04-12 10:17:36,388 INFO L119 rtionOrderModulation]: Craig nested/tree interpolation forces the following order [2018-04-12 10:17:36,424 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-04-12 10:17:36,429 WARN L250 erpolLogProxyWrapper]: Using partial proofs (cut at CNF-level). Set option :produce-proofs to true to get complete proofs. [2018-04-12 10:17:36,487 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-04-12 10:17:36,489 INFO L320 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2018-04-12 10:17:36,489 INFO L335 seRefinementStrategy]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2018-04-12 10:17:36,490 INFO L442 AbstractCegarLoop]: Interpolant automaton has 4 states [2018-04-12 10:17:36,502 INFO L132 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2018-04-12 10:17:36,502 INFO L133 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2018-04-12 10:17:36,504 INFO L87 Difference]: Start difference. First operand 61 states. Second operand 4 states. [2018-04-12 10:17:36,568 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-04-12 10:17:36,568 INFO L93 Difference]: Finished difference Result 60 states and 67 transitions. [2018-04-12 10:17:36,568 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2018-04-12 10:17:36,569 INFO L78 Accepts]: Start accepts. Automaton has 4 states. Word has length 13 [2018-04-12 10:17:36,570 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-04-12 10:17:36,577 INFO L225 Difference]: With dead ends: 60 [2018-04-12 10:17:36,577 INFO L226 Difference]: Without dead ends: 57 [2018-04-12 10:17:36,578 INFO L567 BasicCegarLoop]: 0 DeclaredPredicates, 5 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2018-04-12 10:17:36,589 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 57 states. [2018-04-12 10:17:36,600 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 57 to 57. [2018-04-12 10:17:36,600 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 57 states. [2018-04-12 10:17:36,602 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 57 states to 57 states and 64 transitions. [2018-04-12 10:17:36,603 INFO L78 Accepts]: Start accepts. Automaton has 57 states and 64 transitions. Word has length 13 [2018-04-12 10:17:36,603 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-04-12 10:17:36,603 INFO L459 AbstractCegarLoop]: Abstraction has 57 states and 64 transitions. [2018-04-12 10:17:36,603 INFO L460 AbstractCegarLoop]: Interpolant automaton has 4 states. [2018-04-12 10:17:36,603 INFO L276 IsEmpty]: Start isEmpty. Operand 57 states and 64 transitions. [2018-04-12 10:17:36,603 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 14 [2018-04-12 10:17:36,603 INFO L347 BasicCegarLoop]: Found error trace [2018-04-12 10:17:36,604 INFO L355 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2018-04-12 10:17:36,604 INFO L408 AbstractCegarLoop]: === Iteration 2 === [mainErr3RequiresViolation, mainErr1RequiresViolation, mainErr2RequiresViolation, mainErr4EnsuresViolationMEMORY_LEAK, mainErr0RequiresViolation, cstrncmpErr1RequiresViolation, cstrncmpErr5RequiresViolation, cstrncmpErr6RequiresViolation, cstrncmpErr0RequiresViolation, cstrncmpErr4RequiresViolation, cstrncmpErr7RequiresViolation, cstrncmpErr2RequiresViolation, cstrncmpErr3RequiresViolation, cstrncmpErr8RequiresViolation, cstrncmpErr9RequiresViolation]=== [2018-04-12 10:17:36,604 INFO L82 PathProgramCache]: Analyzing trace with hash -878219723, now seen corresponding path program 1 times [2018-04-12 10:17:36,604 INFO L213 ckRefinementStrategy]: Switched to mode SMTINTERPOL_TREE_INTERPOLANTS [2018-04-12 10:17:36,604 INFO L68 tionRefinementEngine]: Using refinement strategy CamelRefinementStrategy [2018-04-12 10:17:36,605 INFO L119 rtionOrderModulation]: Craig nested/tree interpolation forces the following order [2018-04-12 10:17:36,605 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-04-12 10:17:36,605 INFO L119 rtionOrderModulation]: Craig nested/tree interpolation forces the following order [2018-04-12 10:17:36,619 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-04-12 10:17:36,619 WARN L250 erpolLogProxyWrapper]: Using partial proofs (cut at CNF-level). Set option :produce-proofs to true to get complete proofs. [2018-04-12 10:17:36,681 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-04-12 10:17:36,681 INFO L320 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2018-04-12 10:17:36,681 INFO L335 seRefinementStrategy]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2018-04-12 10:17:36,682 INFO L442 AbstractCegarLoop]: Interpolant automaton has 6 states [2018-04-12 10:17:36,683 INFO L132 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2018-04-12 10:17:36,683 INFO L133 InterpolantAutomaton]: CoverageRelationStatistics Valid=13, Invalid=17, Unknown=0, NotChecked=0, Total=30 [2018-04-12 10:17:36,683 INFO L87 Difference]: Start difference. First operand 57 states and 64 transitions. Second operand 6 states. [2018-04-12 10:17:36,765 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-04-12 10:17:36,765 INFO L93 Difference]: Finished difference Result 56 states and 63 transitions. [2018-04-12 10:17:36,765 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2018-04-12 10:17:36,765 INFO L78 Accepts]: Start accepts. Automaton has 6 states. Word has length 13 [2018-04-12 10:17:36,765 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-04-12 10:17:36,766 INFO L225 Difference]: With dead ends: 56 [2018-04-12 10:17:36,766 INFO L226 Difference]: Without dead ends: 56 [2018-04-12 10:17:36,766 INFO L567 BasicCegarLoop]: 0 DeclaredPredicates, 6 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 5 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=19, Invalid=23, Unknown=0, NotChecked=0, Total=42 [2018-04-12 10:17:36,767 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 56 states. [2018-04-12 10:17:36,768 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 56 to 56. [2018-04-12 10:17:36,769 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 56 states. [2018-04-12 10:17:36,769 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 56 states to 56 states and 63 transitions. [2018-04-12 10:17:36,769 INFO L78 Accepts]: Start accepts. Automaton has 56 states and 63 transitions. Word has length 13 [2018-04-12 10:17:36,769 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-04-12 10:17:36,769 INFO L459 AbstractCegarLoop]: Abstraction has 56 states and 63 transitions. [2018-04-12 10:17:36,769 INFO L460 AbstractCegarLoop]: Interpolant automaton has 6 states. [2018-04-12 10:17:36,770 INFO L276 IsEmpty]: Start isEmpty. Operand 56 states and 63 transitions. [2018-04-12 10:17:36,770 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 15 [2018-04-12 10:17:36,770 INFO L347 BasicCegarLoop]: Found error trace [2018-04-12 10:17:36,770 INFO L355 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2018-04-12 10:17:36,770 INFO L408 AbstractCegarLoop]: === Iteration 3 === [mainErr3RequiresViolation, mainErr1RequiresViolation, mainErr2RequiresViolation, mainErr4EnsuresViolationMEMORY_LEAK, mainErr0RequiresViolation, cstrncmpErr1RequiresViolation, cstrncmpErr5RequiresViolation, cstrncmpErr6RequiresViolation, cstrncmpErr0RequiresViolation, cstrncmpErr4RequiresViolation, cstrncmpErr7RequiresViolation, cstrncmpErr2RequiresViolation, cstrncmpErr3RequiresViolation, cstrncmpErr8RequiresViolation, cstrncmpErr9RequiresViolation]=== [2018-04-12 10:17:36,770 INFO L82 PathProgramCache]: Analyzing trace with hash -1455007674, now seen corresponding path program 1 times [2018-04-12 10:17:36,770 INFO L213 ckRefinementStrategy]: Switched to mode SMTINTERPOL_TREE_INTERPOLANTS [2018-04-12 10:17:36,770 INFO L68 tionRefinementEngine]: Using refinement strategy CamelRefinementStrategy [2018-04-12 10:17:36,771 INFO L119 rtionOrderModulation]: Craig nested/tree interpolation forces the following order [2018-04-12 10:17:36,771 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-04-12 10:17:36,771 INFO L119 rtionOrderModulation]: Craig nested/tree interpolation forces the following order [2018-04-12 10:17:36,778 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-04-12 10:17:36,779 WARN L250 erpolLogProxyWrapper]: Using partial proofs (cut at CNF-level). Set option :produce-proofs to true to get complete proofs. [2018-04-12 10:17:36,794 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-04-12 10:17:36,795 INFO L320 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2018-04-12 10:17:36,795 INFO L335 seRefinementStrategy]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2018-04-12 10:17:36,795 INFO L442 AbstractCegarLoop]: Interpolant automaton has 4 states [2018-04-12 10:17:36,795 INFO L132 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2018-04-12 10:17:36,795 INFO L133 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2018-04-12 10:17:36,796 INFO L87 Difference]: Start difference. First operand 56 states and 63 transitions. Second operand 4 states. [2018-04-12 10:17:36,845 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-04-12 10:17:36,845 INFO L93 Difference]: Finished difference Result 55 states and 62 transitions. [2018-04-12 10:17:36,845 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2018-04-12 10:17:36,845 INFO L78 Accepts]: Start accepts. Automaton has 4 states. Word has length 14 [2018-04-12 10:17:36,845 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-04-12 10:17:36,846 INFO L225 Difference]: With dead ends: 55 [2018-04-12 10:17:36,846 INFO L226 Difference]: Without dead ends: 55 [2018-04-12 10:17:36,846 INFO L567 BasicCegarLoop]: 0 DeclaredPredicates, 4 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2018-04-12 10:17:36,846 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 55 states. [2018-04-12 10:17:36,848 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 55 to 55. [2018-04-12 10:17:36,848 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 55 states. [2018-04-12 10:17:36,848 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 55 states to 55 states and 62 transitions. [2018-04-12 10:17:36,849 INFO L78 Accepts]: Start accepts. Automaton has 55 states and 62 transitions. Word has length 14 [2018-04-12 10:17:36,849 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-04-12 10:17:36,849 INFO L459 AbstractCegarLoop]: Abstraction has 55 states and 62 transitions. [2018-04-12 10:17:36,849 INFO L460 AbstractCegarLoop]: Interpolant automaton has 4 states. [2018-04-12 10:17:36,849 INFO L276 IsEmpty]: Start isEmpty. Operand 55 states and 62 transitions. [2018-04-12 10:17:36,849 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 15 [2018-04-12 10:17:36,849 INFO L347 BasicCegarLoop]: Found error trace [2018-04-12 10:17:36,849 INFO L355 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2018-04-12 10:17:36,849 INFO L408 AbstractCegarLoop]: === Iteration 4 === [mainErr3RequiresViolation, mainErr1RequiresViolation, mainErr2RequiresViolation, mainErr4EnsuresViolationMEMORY_LEAK, mainErr0RequiresViolation, cstrncmpErr1RequiresViolation, cstrncmpErr5RequiresViolation, cstrncmpErr6RequiresViolation, cstrncmpErr0RequiresViolation, cstrncmpErr4RequiresViolation, cstrncmpErr7RequiresViolation, cstrncmpErr2RequiresViolation, cstrncmpErr3RequiresViolation, cstrncmpErr8RequiresViolation, cstrncmpErr9RequiresViolation]=== [2018-04-12 10:17:36,849 INFO L82 PathProgramCache]: Analyzing trace with hash -1455007673, now seen corresponding path program 1 times [2018-04-12 10:17:36,849 INFO L213 ckRefinementStrategy]: Switched to mode SMTINTERPOL_TREE_INTERPOLANTS [2018-04-12 10:17:36,849 INFO L68 tionRefinementEngine]: Using refinement strategy CamelRefinementStrategy [2018-04-12 10:17:36,850 INFO L119 rtionOrderModulation]: Craig nested/tree interpolation forces the following order [2018-04-12 10:17:36,850 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-04-12 10:17:36,850 INFO L119 rtionOrderModulation]: Craig nested/tree interpolation forces the following order [2018-04-12 10:17:36,860 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-04-12 10:17:36,861 WARN L250 erpolLogProxyWrapper]: Using partial proofs (cut at CNF-level). Set option :produce-proofs to true to get complete proofs. [2018-04-12 10:17:36,889 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-04-12 10:17:36,889 INFO L320 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2018-04-12 10:17:36,889 INFO L335 seRefinementStrategy]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2018-04-12 10:17:36,890 INFO L442 AbstractCegarLoop]: Interpolant automaton has 5 states [2018-04-12 10:17:36,890 INFO L132 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2018-04-12 10:17:36,890 INFO L133 InterpolantAutomaton]: CoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2018-04-12 10:17:36,890 INFO L87 Difference]: Start difference. First operand 55 states and 62 transitions. Second operand 5 states. [2018-04-12 10:17:36,918 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-04-12 10:17:36,918 INFO L93 Difference]: Finished difference Result 54 states and 61 transitions. [2018-04-12 10:17:36,918 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2018-04-12 10:17:36,918 INFO L78 Accepts]: Start accepts. Automaton has 5 states. Word has length 14 [2018-04-12 10:17:36,919 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-04-12 10:17:36,919 INFO L225 Difference]: With dead ends: 54 [2018-04-12 10:17:36,919 INFO L226 Difference]: Without dead ends: 54 [2018-04-12 10:17:36,920 INFO L567 BasicCegarLoop]: 0 DeclaredPredicates, 5 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 4 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=14, Invalid=16, Unknown=0, NotChecked=0, Total=30 [2018-04-12 10:17:36,920 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 54 states. [2018-04-12 10:17:36,922 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 54 to 54. [2018-04-12 10:17:36,922 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 54 states. [2018-04-12 10:17:36,923 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 54 states to 54 states and 61 transitions. [2018-04-12 10:17:36,923 INFO L78 Accepts]: Start accepts. Automaton has 54 states and 61 transitions. Word has length 14 [2018-04-12 10:17:36,923 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-04-12 10:17:36,923 INFO L459 AbstractCegarLoop]: Abstraction has 54 states and 61 transitions. [2018-04-12 10:17:36,924 INFO L460 AbstractCegarLoop]: Interpolant automaton has 5 states. [2018-04-12 10:17:36,924 INFO L276 IsEmpty]: Start isEmpty. Operand 54 states and 61 transitions. [2018-04-12 10:17:36,924 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 23 [2018-04-12 10:17:36,924 INFO L347 BasicCegarLoop]: Found error trace [2018-04-12 10:17:36,925 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] [2018-04-12 10:17:36,925 INFO L408 AbstractCegarLoop]: === Iteration 5 === [mainErr3RequiresViolation, mainErr1RequiresViolation, mainErr2RequiresViolation, mainErr4EnsuresViolationMEMORY_LEAK, mainErr0RequiresViolation, cstrncmpErr1RequiresViolation, cstrncmpErr5RequiresViolation, cstrncmpErr6RequiresViolation, cstrncmpErr0RequiresViolation, cstrncmpErr4RequiresViolation, cstrncmpErr7RequiresViolation, cstrncmpErr2RequiresViolation, cstrncmpErr3RequiresViolation, cstrncmpErr8RequiresViolation, cstrncmpErr9RequiresViolation]=== [2018-04-12 10:17:36,925 INFO L82 PathProgramCache]: Analyzing trace with hash 8354905, now seen corresponding path program 1 times [2018-04-12 10:17:36,925 INFO L213 ckRefinementStrategy]: Switched to mode SMTINTERPOL_TREE_INTERPOLANTS [2018-04-12 10:17:36,925 INFO L68 tionRefinementEngine]: Using refinement strategy CamelRefinementStrategy [2018-04-12 10:17:36,926 INFO L119 rtionOrderModulation]: Craig nested/tree interpolation forces the following order [2018-04-12 10:17:36,926 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-04-12 10:17:36,926 INFO L119 rtionOrderModulation]: Craig nested/tree interpolation forces the following order [2018-04-12 10:17:36,938 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-04-12 10:17:36,939 WARN L250 erpolLogProxyWrapper]: Using partial proofs (cut at CNF-level). Set option :produce-proofs to true to get complete proofs. [2018-04-12 10:17:36,967 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-04-12 10:17:36,967 INFO L320 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2018-04-12 10:17:36,967 INFO L335 seRefinementStrategy]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2018-04-12 10:17:36,967 INFO L442 AbstractCegarLoop]: Interpolant automaton has 5 states [2018-04-12 10:17:36,968 INFO L132 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2018-04-12 10:17:36,968 INFO L133 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2018-04-12 10:17:36,968 INFO L87 Difference]: Start difference. First operand 54 states and 61 transitions. Second operand 5 states. [2018-04-12 10:17:37,008 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-04-12 10:17:37,008 INFO L93 Difference]: Finished difference Result 51 states and 58 transitions. [2018-04-12 10:17:37,008 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2018-04-12 10:17:37,008 INFO L78 Accepts]: Start accepts. Automaton has 5 states. Word has length 22 [2018-04-12 10:17:37,008 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-04-12 10:17:37,009 INFO L225 Difference]: With dead ends: 51 [2018-04-12 10:17:37,009 INFO L226 Difference]: Without dead ends: 51 [2018-04-12 10:17:37,009 INFO L567 BasicCegarLoop]: 0 DeclaredPredicates, 5 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 4 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=11, Invalid=19, Unknown=0, NotChecked=0, Total=30 [2018-04-12 10:17:37,009 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 51 states. [2018-04-12 10:17:37,011 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 51 to 51. [2018-04-12 10:17:37,011 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 51 states. [2018-04-12 10:17:37,011 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 51 states to 51 states and 58 transitions. [2018-04-12 10:17:37,011 INFO L78 Accepts]: Start accepts. Automaton has 51 states and 58 transitions. Word has length 22 [2018-04-12 10:17:37,011 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-04-12 10:17:37,011 INFO L459 AbstractCegarLoop]: Abstraction has 51 states and 58 transitions. [2018-04-12 10:17:37,011 INFO L460 AbstractCegarLoop]: Interpolant automaton has 5 states. [2018-04-12 10:17:37,011 INFO L276 IsEmpty]: Start isEmpty. Operand 51 states and 58 transitions. [2018-04-12 10:17:37,012 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 23 [2018-04-12 10:17:37,012 INFO L347 BasicCegarLoop]: Found error trace [2018-04-12 10:17:37,012 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] [2018-04-12 10:17:37,012 INFO L408 AbstractCegarLoop]: === Iteration 6 === [mainErr3RequiresViolation, mainErr1RequiresViolation, mainErr2RequiresViolation, mainErr4EnsuresViolationMEMORY_LEAK, mainErr0RequiresViolation, cstrncmpErr1RequiresViolation, cstrncmpErr5RequiresViolation, cstrncmpErr6RequiresViolation, cstrncmpErr0RequiresViolation, cstrncmpErr4RequiresViolation, cstrncmpErr7RequiresViolation, cstrncmpErr2RequiresViolation, cstrncmpErr3RequiresViolation, cstrncmpErr8RequiresViolation, cstrncmpErr9RequiresViolation]=== [2018-04-12 10:17:37,012 INFO L82 PathProgramCache]: Analyzing trace with hash 8354906, now seen corresponding path program 1 times [2018-04-12 10:17:37,012 INFO L213 ckRefinementStrategy]: Switched to mode SMTINTERPOL_TREE_INTERPOLANTS [2018-04-12 10:17:37,012 INFO L68 tionRefinementEngine]: Using refinement strategy CamelRefinementStrategy [2018-04-12 10:17:37,013 INFO L119 rtionOrderModulation]: Craig nested/tree interpolation forces the following order [2018-04-12 10:17:37,013 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-04-12 10:17:37,013 INFO L119 rtionOrderModulation]: Craig nested/tree interpolation forces the following order [2018-04-12 10:17:37,022 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-04-12 10:17:37,023 WARN L250 erpolLogProxyWrapper]: Using partial proofs (cut at CNF-level). Set option :produce-proofs to true to get complete proofs. [2018-04-12 10:17:37,071 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-04-12 10:17:37,071 INFO L320 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2018-04-12 10:17:37,071 INFO L335 seRefinementStrategy]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2018-04-12 10:17:37,071 INFO L442 AbstractCegarLoop]: Interpolant automaton has 8 states [2018-04-12 10:17:37,071 INFO L132 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2018-04-12 10:17:37,072 INFO L133 InterpolantAutomaton]: CoverageRelationStatistics Valid=15, Invalid=41, Unknown=0, NotChecked=0, Total=56 [2018-04-12 10:17:37,072 INFO L87 Difference]: Start difference. First operand 51 states and 58 transitions. Second operand 8 states. [2018-04-12 10:17:37,155 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-04-12 10:17:37,155 INFO L93 Difference]: Finished difference Result 74 states and 86 transitions. [2018-04-12 10:17:37,155 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2018-04-12 10:17:37,155 INFO L78 Accepts]: Start accepts. Automaton has 8 states. Word has length 22 [2018-04-12 10:17:37,155 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-04-12 10:17:37,157 INFO L225 Difference]: With dead ends: 74 [2018-04-12 10:17:37,157 INFO L226 Difference]: Without dead ends: 74 [2018-04-12 10:17:37,157 INFO L567 BasicCegarLoop]: 0 DeclaredPredicates, 11 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 10 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 13 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=37, Invalid=95, Unknown=0, NotChecked=0, Total=132 [2018-04-12 10:17:37,158 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 74 states. [2018-04-12 10:17:37,159 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 74 to 61. [2018-04-12 10:17:37,159 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 61 states. [2018-04-12 10:17:37,160 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 61 states to 61 states and 73 transitions. [2018-04-12 10:17:37,160 INFO L78 Accepts]: Start accepts. Automaton has 61 states and 73 transitions. Word has length 22 [2018-04-12 10:17:37,160 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-04-12 10:17:37,160 INFO L459 AbstractCegarLoop]: Abstraction has 61 states and 73 transitions. [2018-04-12 10:17:37,160 INFO L460 AbstractCegarLoop]: Interpolant automaton has 8 states. [2018-04-12 10:17:37,160 INFO L276 IsEmpty]: Start isEmpty. Operand 61 states and 73 transitions. [2018-04-12 10:17:37,161 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 24 [2018-04-12 10:17:37,161 INFO L347 BasicCegarLoop]: Found error trace [2018-04-12 10:17:37,161 INFO L355 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2018-04-12 10:17:37,161 INFO L408 AbstractCegarLoop]: === Iteration 7 === [mainErr3RequiresViolation, mainErr1RequiresViolation, mainErr2RequiresViolation, mainErr4EnsuresViolationMEMORY_LEAK, mainErr0RequiresViolation, cstrncmpErr1RequiresViolation, cstrncmpErr5RequiresViolation, cstrncmpErr6RequiresViolation, cstrncmpErr0RequiresViolation, cstrncmpErr4RequiresViolation, cstrncmpErr7RequiresViolation, cstrncmpErr2RequiresViolation, cstrncmpErr3RequiresViolation, cstrncmpErr8RequiresViolation, cstrncmpErr9RequiresViolation]=== [2018-04-12 10:17:37,161 INFO L82 PathProgramCache]: Analyzing trace with hash 259002080, now seen corresponding path program 1 times [2018-04-12 10:17:37,168 INFO L213 ckRefinementStrategy]: Switched to mode SMTINTERPOL_TREE_INTERPOLANTS [2018-04-12 10:17:37,168 INFO L68 tionRefinementEngine]: Using refinement strategy CamelRefinementStrategy [2018-04-12 10:17:37,169 INFO L119 rtionOrderModulation]: Craig nested/tree interpolation forces the following order [2018-04-12 10:17:37,169 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-04-12 10:17:37,169 INFO L119 rtionOrderModulation]: Craig nested/tree interpolation forces the following order [2018-04-12 10:17:37,177 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-04-12 10:17:37,178 WARN L250 erpolLogProxyWrapper]: Using partial proofs (cut at CNF-level). Set option :produce-proofs to true to get complete proofs. [2018-04-12 10:17:37,207 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-04-12 10:17:37,207 INFO L320 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2018-04-12 10:17:37,207 INFO L335 seRefinementStrategy]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2018-04-12 10:17:37,207 INFO L442 AbstractCegarLoop]: Interpolant automaton has 5 states [2018-04-12 10:17:37,207 INFO L132 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2018-04-12 10:17:37,208 INFO L133 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2018-04-12 10:17:37,208 INFO L87 Difference]: Start difference. First operand 61 states and 73 transitions. Second operand 5 states. [2018-04-12 10:17:37,236 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-04-12 10:17:37,236 INFO L93 Difference]: Finished difference Result 59 states and 70 transitions. [2018-04-12 10:17:37,237 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2018-04-12 10:17:37,237 INFO L78 Accepts]: Start accepts. Automaton has 5 states. Word has length 23 [2018-04-12 10:17:37,237 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-04-12 10:17:37,237 INFO L225 Difference]: With dead ends: 59 [2018-04-12 10:17:37,237 INFO L226 Difference]: Without dead ends: 59 [2018-04-12 10:17:37,238 INFO L567 BasicCegarLoop]: 0 DeclaredPredicates, 5 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 4 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=11, Invalid=19, Unknown=0, NotChecked=0, Total=30 [2018-04-12 10:17:37,238 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 59 states. [2018-04-12 10:17:37,240 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 59 to 59. [2018-04-12 10:17:37,240 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 59 states. [2018-04-12 10:17:37,241 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 59 states to 59 states and 70 transitions. [2018-04-12 10:17:37,241 INFO L78 Accepts]: Start accepts. Automaton has 59 states and 70 transitions. Word has length 23 [2018-04-12 10:17:37,241 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-04-12 10:17:37,241 INFO L459 AbstractCegarLoop]: Abstraction has 59 states and 70 transitions. [2018-04-12 10:17:37,241 INFO L460 AbstractCegarLoop]: Interpolant automaton has 5 states. [2018-04-12 10:17:37,241 INFO L276 IsEmpty]: Start isEmpty. Operand 59 states and 70 transitions. [2018-04-12 10:17:37,242 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 24 [2018-04-12 10:17:37,242 INFO L347 BasicCegarLoop]: Found error trace [2018-04-12 10:17:37,242 INFO L355 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2018-04-12 10:17:37,242 INFO L408 AbstractCegarLoop]: === Iteration 8 === [mainErr3RequiresViolation, mainErr1RequiresViolation, mainErr2RequiresViolation, mainErr4EnsuresViolationMEMORY_LEAK, mainErr0RequiresViolation, cstrncmpErr1RequiresViolation, cstrncmpErr5RequiresViolation, cstrncmpErr6RequiresViolation, cstrncmpErr0RequiresViolation, cstrncmpErr4RequiresViolation, cstrncmpErr7RequiresViolation, cstrncmpErr2RequiresViolation, cstrncmpErr3RequiresViolation, cstrncmpErr8RequiresViolation, cstrncmpErr9RequiresViolation]=== [2018-04-12 10:17:37,242 INFO L82 PathProgramCache]: Analyzing trace with hash 259002081, now seen corresponding path program 1 times [2018-04-12 10:17:37,242 INFO L213 ckRefinementStrategy]: Switched to mode SMTINTERPOL_TREE_INTERPOLANTS [2018-04-12 10:17:37,242 INFO L68 tionRefinementEngine]: Using refinement strategy CamelRefinementStrategy [2018-04-12 10:17:37,243 INFO L119 rtionOrderModulation]: Craig nested/tree interpolation forces the following order [2018-04-12 10:17:37,243 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-04-12 10:17:37,243 INFO L119 rtionOrderModulation]: Craig nested/tree interpolation forces the following order [2018-04-12 10:17:37,252 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-04-12 10:17:37,253 WARN L250 erpolLogProxyWrapper]: Using partial proofs (cut at CNF-level). Set option :produce-proofs to true to get complete proofs. [2018-04-12 10:17:37,306 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-04-12 10:17:37,307 INFO L320 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2018-04-12 10:17:37,307 INFO L335 seRefinementStrategy]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2018-04-12 10:17:37,307 INFO L442 AbstractCegarLoop]: Interpolant automaton has 8 states [2018-04-12 10:17:37,307 INFO L132 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2018-04-12 10:17:37,307 INFO L133 InterpolantAutomaton]: CoverageRelationStatistics Valid=16, Invalid=40, Unknown=0, NotChecked=0, Total=56 [2018-04-12 10:17:37,307 INFO L87 Difference]: Start difference. First operand 59 states and 70 transitions. Second operand 8 states. [2018-04-12 10:17:37,389 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-04-12 10:17:37,389 INFO L93 Difference]: Finished difference Result 68 states and 80 transitions. [2018-04-12 10:17:37,390 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2018-04-12 10:17:37,390 INFO L78 Accepts]: Start accepts. Automaton has 8 states. Word has length 23 [2018-04-12 10:17:37,390 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-04-12 10:17:37,391 INFO L225 Difference]: With dead ends: 68 [2018-04-12 10:17:37,391 INFO L226 Difference]: Without dead ends: 68 [2018-04-12 10:17:37,391 INFO L567 BasicCegarLoop]: 0 DeclaredPredicates, 9 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 8 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 11 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=26, Invalid=64, Unknown=0, NotChecked=0, Total=90 [2018-04-12 10:17:37,392 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 68 states. [2018-04-12 10:17:37,394 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 68 to 61. [2018-04-12 10:17:37,394 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 61 states. [2018-04-12 10:17:37,394 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 61 states to 61 states and 71 transitions. [2018-04-12 10:17:37,394 INFO L78 Accepts]: Start accepts. Automaton has 61 states and 71 transitions. Word has length 23 [2018-04-12 10:17:37,399 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-04-12 10:17:37,399 INFO L459 AbstractCegarLoop]: Abstraction has 61 states and 71 transitions. [2018-04-12 10:17:37,399 INFO L460 AbstractCegarLoop]: Interpolant automaton has 8 states. [2018-04-12 10:17:37,399 INFO L276 IsEmpty]: Start isEmpty. Operand 61 states and 71 transitions. [2018-04-12 10:17:37,399 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 27 [2018-04-12 10:17:37,400 INFO L347 BasicCegarLoop]: Found error trace [2018-04-12 10:17:37,400 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] [2018-04-12 10:17:37,400 INFO L408 AbstractCegarLoop]: === Iteration 9 === [mainErr3RequiresViolation, mainErr1RequiresViolation, mainErr2RequiresViolation, mainErr4EnsuresViolationMEMORY_LEAK, mainErr0RequiresViolation, cstrncmpErr1RequiresViolation, cstrncmpErr5RequiresViolation, cstrncmpErr6RequiresViolation, cstrncmpErr0RequiresViolation, cstrncmpErr4RequiresViolation, cstrncmpErr7RequiresViolation, cstrncmpErr2RequiresViolation, cstrncmpErr3RequiresViolation, cstrncmpErr8RequiresViolation, cstrncmpErr9RequiresViolation]=== [2018-04-12 10:17:37,400 INFO L82 PathProgramCache]: Analyzing trace with hash -633449795, now seen corresponding path program 1 times [2018-04-12 10:17:37,400 INFO L213 ckRefinementStrategy]: Switched to mode SMTINTERPOL_TREE_INTERPOLANTS [2018-04-12 10:17:37,400 INFO L68 tionRefinementEngine]: Using refinement strategy CamelRefinementStrategy [2018-04-12 10:17:37,401 INFO L119 rtionOrderModulation]: Craig nested/tree interpolation forces the following order [2018-04-12 10:17:37,401 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-04-12 10:17:37,401 INFO L119 rtionOrderModulation]: Craig nested/tree interpolation forces the following order [2018-04-12 10:17:37,410 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-04-12 10:17:37,414 WARN L250 erpolLogProxyWrapper]: Using partial proofs (cut at CNF-level). Set option :produce-proofs to true to get complete proofs. [2018-04-12 10:17:37,479 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-04-12 10:17:37,479 INFO L320 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2018-04-12 10:17:37,479 INFO L335 seRefinementStrategy]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2018-04-12 10:17:37,479 INFO L442 AbstractCegarLoop]: Interpolant automaton has 6 states [2018-04-12 10:17:37,479 INFO L132 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2018-04-12 10:17:37,480 INFO L133 InterpolantAutomaton]: CoverageRelationStatistics Valid=9, Invalid=21, Unknown=0, NotChecked=0, Total=30 [2018-04-12 10:17:37,480 INFO L87 Difference]: Start difference. First operand 61 states and 71 transitions. Second operand 6 states. [2018-04-12 10:17:37,590 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-04-12 10:17:37,591 INFO L93 Difference]: Finished difference Result 60 states and 70 transitions. [2018-04-12 10:17:37,591 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2018-04-12 10:17:37,591 INFO L78 Accepts]: Start accepts. Automaton has 6 states. Word has length 26 [2018-04-12 10:17:37,591 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-04-12 10:17:37,592 INFO L225 Difference]: With dead ends: 60 [2018-04-12 10:17:37,592 INFO L226 Difference]: Without dead ends: 46 [2018-04-12 10:17:37,592 INFO L567 BasicCegarLoop]: 0 DeclaredPredicates, 8 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 6 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=17, Invalid=39, Unknown=0, NotChecked=0, Total=56 [2018-04-12 10:17:37,592 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 46 states. [2018-04-12 10:17:37,594 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 46 to 46. [2018-04-12 10:17:37,594 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 46 states. [2018-04-12 10:17:37,594 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 46 states to 46 states and 52 transitions. [2018-04-12 10:17:37,594 INFO L78 Accepts]: Start accepts. Automaton has 46 states and 52 transitions. Word has length 26 [2018-04-12 10:17:37,595 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-04-12 10:17:37,595 INFO L459 AbstractCegarLoop]: Abstraction has 46 states and 52 transitions. [2018-04-12 10:17:37,595 INFO L460 AbstractCegarLoop]: Interpolant automaton has 6 states. [2018-04-12 10:17:37,595 INFO L276 IsEmpty]: Start isEmpty. Operand 46 states and 52 transitions. [2018-04-12 10:17:37,595 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 29 [2018-04-12 10:17:37,595 INFO L347 BasicCegarLoop]: Found error trace [2018-04-12 10:17:37,595 INFO L355 BasicCegarLoop]: trace histogram [2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2018-04-12 10:17:37,596 INFO L408 AbstractCegarLoop]: === Iteration 10 === [mainErr3RequiresViolation, mainErr1RequiresViolation, mainErr2RequiresViolation, mainErr4EnsuresViolationMEMORY_LEAK, mainErr0RequiresViolation, cstrncmpErr1RequiresViolation, cstrncmpErr5RequiresViolation, cstrncmpErr6RequiresViolation, cstrncmpErr0RequiresViolation, cstrncmpErr4RequiresViolation, cstrncmpErr7RequiresViolation, cstrncmpErr2RequiresViolation, cstrncmpErr3RequiresViolation, cstrncmpErr8RequiresViolation, cstrncmpErr9RequiresViolation]=== [2018-04-12 10:17:37,596 INFO L82 PathProgramCache]: Analyzing trace with hash 517212813, now seen corresponding path program 1 times [2018-04-12 10:17:37,596 INFO L213 ckRefinementStrategy]: Switched to mode SMTINTERPOL_TREE_INTERPOLANTS [2018-04-12 10:17:37,596 INFO L68 tionRefinementEngine]: Using refinement strategy CamelRefinementStrategy [2018-04-12 10:17:37,597 INFO L119 rtionOrderModulation]: Craig nested/tree interpolation forces the following order [2018-04-12 10:17:37,597 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-04-12 10:17:37,597 INFO L119 rtionOrderModulation]: Craig nested/tree interpolation forces the following order [2018-04-12 10:17:37,603 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-04-12 10:17:37,604 WARN L250 erpolLogProxyWrapper]: Using partial proofs (cut at CNF-level). Set option :produce-proofs to true to get complete proofs. [2018-04-12 10:17:37,615 INFO L134 CoverageAnalysis]: Checked inductivity of 3 backedges. 3 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-04-12 10:17:37,615 INFO L320 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2018-04-12 10:17:37,615 INFO L335 seRefinementStrategy]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2018-04-12 10:17:37,615 INFO L442 AbstractCegarLoop]: Interpolant automaton has 3 states [2018-04-12 10:17:37,616 INFO L132 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2018-04-12 10:17:37,616 INFO L133 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2018-04-12 10:17:37,616 INFO L87 Difference]: Start difference. First operand 46 states and 52 transitions. Second operand 3 states. [2018-04-12 10:17:37,620 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-04-12 10:17:37,621 INFO L93 Difference]: Finished difference Result 48 states and 53 transitions. [2018-04-12 10:17:37,621 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2018-04-12 10:17:37,621 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 28 [2018-04-12 10:17:37,621 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-04-12 10:17:37,621 INFO L225 Difference]: With dead ends: 48 [2018-04-12 10:17:37,622 INFO L226 Difference]: Without dead ends: 47 [2018-04-12 10:17:37,622 INFO L567 BasicCegarLoop]: 0 DeclaredPredicates, 3 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2018-04-12 10:17:37,622 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 47 states. [2018-04-12 10:17:37,623 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 47 to 47. [2018-04-12 10:17:37,624 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 47 states. [2018-04-12 10:17:37,624 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 47 states to 47 states and 52 transitions. [2018-04-12 10:17:37,624 INFO L78 Accepts]: Start accepts. Automaton has 47 states and 52 transitions. Word has length 28 [2018-04-12 10:17:37,624 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-04-12 10:17:37,624 INFO L459 AbstractCegarLoop]: Abstraction has 47 states and 52 transitions. [2018-04-12 10:17:37,624 INFO L460 AbstractCegarLoop]: Interpolant automaton has 3 states. [2018-04-12 10:17:37,624 INFO L276 IsEmpty]: Start isEmpty. Operand 47 states and 52 transitions. [2018-04-12 10:17:37,625 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 32 [2018-04-12 10:17:37,625 INFO L347 BasicCegarLoop]: Found error trace [2018-04-12 10:17:37,625 INFO L355 BasicCegarLoop]: trace histogram [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] [2018-04-12 10:17:37,625 INFO L408 AbstractCegarLoop]: === Iteration 11 === [mainErr3RequiresViolation, mainErr1RequiresViolation, mainErr2RequiresViolation, mainErr4EnsuresViolationMEMORY_LEAK, mainErr0RequiresViolation, cstrncmpErr1RequiresViolation, cstrncmpErr5RequiresViolation, cstrncmpErr6RequiresViolation, cstrncmpErr0RequiresViolation, cstrncmpErr4RequiresViolation, cstrncmpErr7RequiresViolation, cstrncmpErr2RequiresViolation, cstrncmpErr3RequiresViolation, cstrncmpErr8RequiresViolation, cstrncmpErr9RequiresViolation]=== [2018-04-12 10:17:37,625 INFO L82 PathProgramCache]: Analyzing trace with hash 733581303, now seen corresponding path program 1 times [2018-04-12 10:17:37,625 INFO L213 ckRefinementStrategy]: Switched to mode SMTINTERPOL_TREE_INTERPOLANTS [2018-04-12 10:17:37,625 INFO L68 tionRefinementEngine]: Using refinement strategy CamelRefinementStrategy [2018-04-12 10:17:37,626 INFO L119 rtionOrderModulation]: Craig nested/tree interpolation forces the following order [2018-04-12 10:17:37,626 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-04-12 10:17:37,626 INFO L119 rtionOrderModulation]: Craig nested/tree interpolation forces the following order [2018-04-12 10:17:37,634 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-04-12 10:17:37,637 WARN L250 erpolLogProxyWrapper]: Using partial proofs (cut at CNF-level). Set option :produce-proofs to true to get complete proofs. [2018-04-12 10:17:37,654 INFO L134 CoverageAnalysis]: Checked inductivity of 4 backedges. 4 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-04-12 10:17:37,654 INFO L320 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2018-04-12 10:17:37,655 INFO L335 seRefinementStrategy]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2018-04-12 10:17:37,655 INFO L442 AbstractCegarLoop]: Interpolant automaton has 3 states [2018-04-12 10:17:37,655 INFO L132 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2018-04-12 10:17:37,655 INFO L133 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2018-04-12 10:17:37,655 INFO L87 Difference]: Start difference. First operand 47 states and 52 transitions. Second operand 3 states. [2018-04-12 10:17:37,659 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-04-12 10:17:37,660 INFO L93 Difference]: Finished difference Result 48 states and 52 transitions. [2018-04-12 10:17:37,660 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2018-04-12 10:17:37,660 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 31 [2018-04-12 10:17:37,660 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-04-12 10:17:37,660 INFO L225 Difference]: With dead ends: 48 [2018-04-12 10:17:37,661 INFO L226 Difference]: Without dead ends: 47 [2018-04-12 10:17:37,661 INFO L567 BasicCegarLoop]: 0 DeclaredPredicates, 3 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2018-04-12 10:17:37,661 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 47 states. [2018-04-12 10:17:37,663 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 47 to 47. [2018-04-12 10:17:37,663 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 47 states. [2018-04-12 10:17:37,663 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 47 states to 47 states and 50 transitions. [2018-04-12 10:17:37,663 INFO L78 Accepts]: Start accepts. Automaton has 47 states and 50 transitions. Word has length 31 [2018-04-12 10:17:37,664 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-04-12 10:17:37,664 INFO L459 AbstractCegarLoop]: Abstraction has 47 states and 50 transitions. [2018-04-12 10:17:37,664 INFO L460 AbstractCegarLoop]: Interpolant automaton has 3 states. [2018-04-12 10:17:37,664 INFO L276 IsEmpty]: Start isEmpty. Operand 47 states and 50 transitions. [2018-04-12 10:17:37,664 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 34 [2018-04-12 10:17:37,664 INFO L347 BasicCegarLoop]: Found error trace [2018-04-12 10:17:37,664 INFO L355 BasicCegarLoop]: trace histogram [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] [2018-04-12 10:17:37,665 INFO L408 AbstractCegarLoop]: === Iteration 12 === [mainErr3RequiresViolation, mainErr1RequiresViolation, mainErr2RequiresViolation, mainErr4EnsuresViolationMEMORY_LEAK, mainErr0RequiresViolation, cstrncmpErr1RequiresViolation, cstrncmpErr5RequiresViolation, cstrncmpErr6RequiresViolation, cstrncmpErr0RequiresViolation, cstrncmpErr4RequiresViolation, cstrncmpErr7RequiresViolation, cstrncmpErr2RequiresViolation, cstrncmpErr3RequiresViolation, cstrncmpErr8RequiresViolation, cstrncmpErr9RequiresViolation]=== [2018-04-12 10:17:37,665 INFO L82 PathProgramCache]: Analyzing trace with hash 2137199122, now seen corresponding path program 1 times [2018-04-12 10:17:37,665 INFO L213 ckRefinementStrategy]: Switched to mode SMTINTERPOL_TREE_INTERPOLANTS [2018-04-12 10:17:37,665 INFO L68 tionRefinementEngine]: Using refinement strategy CamelRefinementStrategy [2018-04-12 10:17:37,665 INFO L119 rtionOrderModulation]: Craig nested/tree interpolation forces the following order [2018-04-12 10:17:37,666 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-04-12 10:17:37,666 INFO L119 rtionOrderModulation]: Craig nested/tree interpolation forces the following order [2018-04-12 10:17:37,677 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-04-12 10:17:37,677 WARN L250 erpolLogProxyWrapper]: Using partial proofs (cut at CNF-level). Set option :produce-proofs to true to get complete proofs. [2018-04-12 10:17:37,836 INFO L134 CoverageAnalysis]: Checked inductivity of 4 backedges. 4 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-04-12 10:17:37,837 INFO L320 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2018-04-12 10:17:37,837 INFO L335 seRefinementStrategy]: Number of different interpolants: perfect sequences [12] imperfect sequences [] total 12 [2018-04-12 10:17:37,837 INFO L442 AbstractCegarLoop]: Interpolant automaton has 12 states [2018-04-12 10:17:37,837 INFO L132 InterpolantAutomaton]: Constructing interpolant automaton starting with 12 interpolants. [2018-04-12 10:17:37,837 INFO L133 InterpolantAutomaton]: CoverageRelationStatistics Valid=25, Invalid=107, Unknown=0, NotChecked=0, Total=132 [2018-04-12 10:17:37,838 INFO L87 Difference]: Start difference. First operand 47 states and 50 transitions. Second operand 12 states. [2018-04-12 10:17:37,961 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-04-12 10:17:37,962 INFO L93 Difference]: Finished difference Result 69 states and 72 transitions. [2018-04-12 10:17:37,962 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 12 states. [2018-04-12 10:17:37,962 INFO L78 Accepts]: Start accepts. Automaton has 12 states. Word has length 33 [2018-04-12 10:17:37,962 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-04-12 10:17:37,962 INFO L225 Difference]: With dead ends: 69 [2018-04-12 10:17:37,963 INFO L226 Difference]: Without dead ends: 47 [2018-04-12 10:17:37,963 INFO L567 BasicCegarLoop]: 0 DeclaredPredicates, 20 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 17 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 44 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=75, Invalid=267, Unknown=0, NotChecked=0, Total=342 [2018-04-12 10:17:37,963 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 47 states. [2018-04-12 10:17:37,964 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 47 to 47. [2018-04-12 10:17:37,964 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 47 states. [2018-04-12 10:17:37,965 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 47 states to 47 states and 49 transitions. [2018-04-12 10:17:37,965 INFO L78 Accepts]: Start accepts. Automaton has 47 states and 49 transitions. Word has length 33 [2018-04-12 10:17:37,965 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-04-12 10:17:37,965 INFO L459 AbstractCegarLoop]: Abstraction has 47 states and 49 transitions. [2018-04-12 10:17:37,965 INFO L460 AbstractCegarLoop]: Interpolant automaton has 12 states. [2018-04-12 10:17:37,965 INFO L276 IsEmpty]: Start isEmpty. Operand 47 states and 49 transitions. [2018-04-12 10:17:37,966 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 34 [2018-04-12 10:17:37,966 INFO L347 BasicCegarLoop]: Found error trace [2018-04-12 10:17:37,966 INFO L355 BasicCegarLoop]: trace histogram [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] [2018-04-12 10:17:37,966 INFO L408 AbstractCegarLoop]: === Iteration 13 === [mainErr3RequiresViolation, mainErr1RequiresViolation, mainErr2RequiresViolation, mainErr4EnsuresViolationMEMORY_LEAK, mainErr0RequiresViolation, cstrncmpErr1RequiresViolation, cstrncmpErr5RequiresViolation, cstrncmpErr6RequiresViolation, cstrncmpErr0RequiresViolation, cstrncmpErr4RequiresViolation, cstrncmpErr7RequiresViolation, cstrncmpErr2RequiresViolation, cstrncmpErr3RequiresViolation, cstrncmpErr8RequiresViolation, cstrncmpErr9RequiresViolation]=== [2018-04-12 10:17:37,966 INFO L82 PathProgramCache]: Analyzing trace with hash -234540140, now seen corresponding path program 1 times [2018-04-12 10:17:37,966 INFO L213 ckRefinementStrategy]: Switched to mode SMTINTERPOL_TREE_INTERPOLANTS [2018-04-12 10:17:37,966 INFO L68 tionRefinementEngine]: Using refinement strategy CamelRefinementStrategy [2018-04-12 10:17:37,967 INFO L119 rtionOrderModulation]: Craig nested/tree interpolation forces the following order [2018-04-12 10:17:37,967 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-04-12 10:17:37,967 INFO L119 rtionOrderModulation]: Craig nested/tree interpolation forces the following order [2018-04-12 10:17:37,977 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-04-12 10:17:37,978 WARN L250 erpolLogProxyWrapper]: Using partial proofs (cut at CNF-level). Set option :produce-proofs to true to get complete proofs. [2018-04-12 10:17:38,117 INFO L134 CoverageAnalysis]: Checked inductivity of 4 backedges. 0 proven. 4 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-04-12 10:17:38,117 INFO L308 seRefinementStrategy]: The current sequences of interpolants are not accepted, trying to find more. [2018-04-12 10:17:38,117 INFO L213 ckRefinementStrategy]: Switched to mode Z3_FP No working directory specified, using /home/ultimate/work/ultimate/releaseScripts/default/UAutomizer-linux/z3 Starting monitored process 2 with z3 -smt2 -in SMTLIB2_COMPLIANT=true -t:12000 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 2 with z3 -smt2 -in SMTLIB2_COMPLIANT=true -t:12000 [2018-04-12 10:17:38,124 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-04-12 10:17:38,159 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-04-12 10:17:38,164 INFO L270 TraceCheckSpWp]: Computing forward predicates... [2018-04-12 10:17:38,211 INFO L477 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 11 treesize of output 8 [2018-04-12 10:17:38,215 INFO L477 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 8 treesize of output 7 [2018-04-12 10:17:38,215 INFO L267 ElimStorePlain]: Start of recursive call 3: End of recursive call: and 1 xjuncts. [2018-04-12 10:17:38,217 INFO L267 ElimStorePlain]: Start of recursive call 2: 1 dim-1 vars, End of recursive call: and 1 xjuncts. [2018-04-12 10:17:38,223 INFO L267 ElimStorePlain]: Start of recursive call 1: 1 dim-2 vars, End of recursive call: and 1 xjuncts. [2018-04-12 10:17:38,223 INFO L202 ElimStorePlain]: Needed 3 recursive calls to eliminate 1 variables, input treesize:11, output treesize:7 [2018-04-12 10:17:38,355 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 26 [2018-04-12 10:17:38,357 INFO L477 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 22 treesize of output 15 [2018-04-12 10:17:38,357 INFO L267 ElimStorePlain]: Start of recursive call 3: End of recursive call: and 1 xjuncts. [2018-04-12 10:17:38,365 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 15 treesize of output 8 [2018-04-12 10:17:38,366 INFO L267 ElimStorePlain]: Start of recursive call 4: End of recursive call: and 1 xjuncts. [2018-04-12 10:17:38,373 INFO L477 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 2 select indices, 2 select index equivalence classes, 0 disjoint index pairs (out of 1 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 18 treesize of output 3 [2018-04-12 10:17:38,373 INFO L267 ElimStorePlain]: Start of recursive call 5: End of recursive call: and 1 xjuncts. [2018-04-12 10:17:38,376 INFO L267 ElimStorePlain]: Start of recursive call 2: 3 dim-1 vars, End of recursive call: and 1 xjuncts. [2018-04-12 10:17:38,380 INFO L267 ElimStorePlain]: Start of recursive call 1: 4 dim-0 vars, 1 dim-2 vars, End of recursive call: and 1 xjuncts. [2018-04-12 10:17:38,380 INFO L202 ElimStorePlain]: Needed 5 recursive calls to eliminate 5 variables, input treesize:26, output treesize:3 [2018-04-12 10:17:38,409 INFO L134 CoverageAnalysis]: Checked inductivity of 4 backedges. 4 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-04-12 10:17:38,430 INFO L320 seRefinementStrategy]: Constructing automaton from 1 perfect and 1 imperfect interpolant sequences. [2018-04-12 10:17:38,430 INFO L335 seRefinementStrategy]: Number of different interpolants: perfect sequences [12] imperfect sequences [12] total 23 [2018-04-12 10:17:38,430 INFO L442 AbstractCegarLoop]: Interpolant automaton has 23 states [2018-04-12 10:17:38,430 INFO L132 InterpolantAutomaton]: Constructing interpolant automaton starting with 23 interpolants. [2018-04-12 10:17:38,431 INFO L133 InterpolantAutomaton]: CoverageRelationStatistics Valid=48, Invalid=458, Unknown=0, NotChecked=0, Total=506 [2018-04-12 10:17:38,431 INFO L87 Difference]: Start difference. First operand 47 states and 49 transitions. Second operand 23 states. [2018-04-12 10:17:39,177 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-04-12 10:17:39,177 INFO L93 Difference]: Finished difference Result 87 states and 89 transitions. [2018-04-12 10:17:39,177 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 28 states. [2018-04-12 10:17:39,177 INFO L78 Accepts]: Start accepts. Automaton has 23 states. Word has length 33 [2018-04-12 10:17:39,178 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-04-12 10:17:39,178 INFO L225 Difference]: With dead ends: 87 [2018-04-12 10:17:39,178 INFO L226 Difference]: Without dead ends: 66 [2018-04-12 10:17:39,179 INFO L567 BasicCegarLoop]: 0 DeclaredPredicates, 69 GetRequests, 25 SyntacticMatches, 0 SemanticMatches, 44 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 337 ImplicationChecksByTransitivity, 0.7s TimeCoverageRelationStatistics Valid=276, Invalid=1794, Unknown=0, NotChecked=0, Total=2070 [2018-04-12 10:17:39,179 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 66 states. [2018-04-12 10:17:39,180 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 66 to 60. [2018-04-12 10:17:39,180 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 60 states. [2018-04-12 10:17:39,181 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 60 states to 60 states and 64 transitions. [2018-04-12 10:17:39,181 INFO L78 Accepts]: Start accepts. Automaton has 60 states and 64 transitions. Word has length 33 [2018-04-12 10:17:39,181 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-04-12 10:17:39,181 INFO L459 AbstractCegarLoop]: Abstraction has 60 states and 64 transitions. [2018-04-12 10:17:39,181 INFO L460 AbstractCegarLoop]: Interpolant automaton has 23 states. [2018-04-12 10:17:39,181 INFO L276 IsEmpty]: Start isEmpty. Operand 60 states and 64 transitions. [2018-04-12 10:17:39,181 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 35 [2018-04-12 10:17:39,181 INFO L347 BasicCegarLoop]: Found error trace [2018-04-12 10:17:39,182 INFO L355 BasicCegarLoop]: trace histogram [2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2018-04-12 10:17:39,182 INFO L408 AbstractCegarLoop]: === Iteration 14 === [mainErr3RequiresViolation, mainErr1RequiresViolation, mainErr2RequiresViolation, mainErr4EnsuresViolationMEMORY_LEAK, mainErr0RequiresViolation, cstrncmpErr1RequiresViolation, cstrncmpErr5RequiresViolation, cstrncmpErr6RequiresViolation, cstrncmpErr0RequiresViolation, cstrncmpErr4RequiresViolation, cstrncmpErr7RequiresViolation, cstrncmpErr2RequiresViolation, cstrncmpErr3RequiresViolation, cstrncmpErr8RequiresViolation, cstrncmpErr9RequiresViolation]=== [2018-04-12 10:17:39,182 INFO L82 PathProgramCache]: Analyzing trace with hash -1052549015, now seen corresponding path program 1 times [2018-04-12 10:17:39,182 INFO L213 ckRefinementStrategy]: Switched to mode SMTINTERPOL_TREE_INTERPOLANTS [2018-04-12 10:17:39,182 INFO L68 tionRefinementEngine]: Using refinement strategy CamelRefinementStrategy [2018-04-12 10:17:39,182 INFO L119 rtionOrderModulation]: Craig nested/tree interpolation forces the following order [2018-04-12 10:17:39,182 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-04-12 10:17:39,182 INFO L119 rtionOrderModulation]: Craig nested/tree interpolation forces the following order [2018-04-12 10:17:39,193 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-04-12 10:17:39,194 WARN L250 erpolLogProxyWrapper]: Using partial proofs (cut at CNF-level). Set option :produce-proofs to true to get complete proofs. [2018-04-12 10:17:39,375 INFO L134 CoverageAnalysis]: Checked inductivity of 5 backedges. 0 proven. 5 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-04-12 10:17:39,375 INFO L308 seRefinementStrategy]: The current sequences of interpolants are not accepted, trying to find more. [2018-04-12 10:17:39,375 INFO L213 ckRefinementStrategy]: Switched to mode Z3_FP No working directory specified, using /home/ultimate/work/ultimate/releaseScripts/default/UAutomizer-linux/z3 Starting monitored process 3 with z3 -smt2 -in SMTLIB2_COMPLIANT=true -t:12000 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 3 with z3 -smt2 -in SMTLIB2_COMPLIANT=true -t:12000 [2018-04-12 10:17:39,382 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-04-12 10:17:39,393 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-04-12 10:17:39,396 INFO L270 TraceCheckSpWp]: Computing forward predicates... [2018-04-12 10:17:39,400 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 [2018-04-12 10:17:39,401 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 [2018-04-12 10:17:39,401 INFO L267 ElimStorePlain]: Start of recursive call 3: End of recursive call: and 1 xjuncts. [2018-04-12 10:17:39,403 INFO L267 ElimStorePlain]: Start of recursive call 2: 1 dim-1 vars, End of recursive call: and 1 xjuncts. [2018-04-12 10:17:39,412 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. [2018-04-12 10:17:39,412 INFO L202 ElimStorePlain]: Needed 3 recursive calls to eliminate 2 variables, input treesize:25, output treesize:21 [2018-04-12 10:17:39,604 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 29 treesize of output 29 [2018-04-12 10:17:39,608 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 25 treesize of output 18 [2018-04-12 10:17:39,609 INFO L267 ElimStorePlain]: Start of recursive call 3: End of recursive call: and 1 xjuncts. [2018-04-12 10:17:39,619 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 18 treesize of output 16 [2018-04-12 10:17:39,620 INFO L267 ElimStorePlain]: Start of recursive call 4: End of recursive call: and 2 xjuncts. [2018-04-12 10:17:39,635 INFO L477 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 3 select indices, 3 select index equivalence classes, 0 disjoint index pairs (out of 3 index pairs), introduced 0 new quantified variables, introduced 2 case distinctions, treesize of input 21 treesize of output 23 [2018-04-12 10:17:39,636 INFO L267 ElimStorePlain]: Start of recursive call 5: End of recursive call: and 2 xjuncts. [2018-04-12 10:17:39,643 INFO L267 ElimStorePlain]: Start of recursive call 2: 3 dim-1 vars, End of recursive call: and 3 xjuncts. [2018-04-12 10:17:39,654 INFO L267 ElimStorePlain]: Start of recursive call 1: 4 dim-0 vars, 1 dim-2 vars, End of recursive call: and 2 xjuncts. [2018-04-12 10:17:39,654 INFO L202 ElimStorePlain]: Needed 5 recursive calls to eliminate 5 variables, input treesize:45, output treesize:33 [2018-04-12 10:17:39,712 INFO L134 CoverageAnalysis]: Checked inductivity of 5 backedges. 0 proven. 5 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-04-12 10:17:39,729 INFO L320 seRefinementStrategy]: Constructing automaton from 0 perfect and 2 imperfect interpolant sequences. [2018-04-12 10:17:39,729 INFO L335 seRefinementStrategy]: Number of different interpolants: perfect sequences [] imperfect sequences [14, 12] total 23 [2018-04-12 10:17:39,729 INFO L442 AbstractCegarLoop]: Interpolant automaton has 24 states [2018-04-12 10:17:39,730 INFO L132 InterpolantAutomaton]: Constructing interpolant automaton starting with 24 interpolants. [2018-04-12 10:17:39,730 INFO L133 InterpolantAutomaton]: CoverageRelationStatistics Valid=58, Invalid=494, Unknown=0, NotChecked=0, Total=552 [2018-04-12 10:17:39,730 INFO L87 Difference]: Start difference. First operand 60 states and 64 transitions. Second operand 24 states. [2018-04-12 10:17:40,735 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-04-12 10:17:40,735 INFO L93 Difference]: Finished difference Result 64 states and 66 transitions. [2018-04-12 10:17:40,736 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 15 states. [2018-04-12 10:17:40,736 INFO L78 Accepts]: Start accepts. Automaton has 24 states. Word has length 34 [2018-04-12 10:17:40,736 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-04-12 10:17:40,736 INFO L225 Difference]: With dead ends: 64 [2018-04-12 10:17:40,736 INFO L226 Difference]: Without dead ends: 60 [2018-04-12 10:17:40,737 INFO L567 BasicCegarLoop]: 0 DeclaredPredicates, 58 GetRequests, 25 SyntacticMatches, 0 SemanticMatches, 33 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 192 ImplicationChecksByTransitivity, 0.7s TimeCoverageRelationStatistics Valid=169, Invalid=1021, Unknown=0, NotChecked=0, Total=1190 [2018-04-12 10:17:40,737 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 60 states. [2018-04-12 10:17:40,738 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 60 to 58. [2018-04-12 10:17:40,739 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 58 states. [2018-04-12 10:17:40,739 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 58 states to 58 states and 59 transitions. [2018-04-12 10:17:40,739 INFO L78 Accepts]: Start accepts. Automaton has 58 states and 59 transitions. Word has length 34 [2018-04-12 10:17:40,739 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-04-12 10:17:40,739 INFO L459 AbstractCegarLoop]: Abstraction has 58 states and 59 transitions. [2018-04-12 10:17:40,739 INFO L460 AbstractCegarLoop]: Interpolant automaton has 24 states. [2018-04-12 10:17:40,739 INFO L276 IsEmpty]: Start isEmpty. Operand 58 states and 59 transitions. [2018-04-12 10:17:40,740 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 45 [2018-04-12 10:17:40,740 INFO L347 BasicCegarLoop]: Found error trace [2018-04-12 10:17:40,740 INFO L355 BasicCegarLoop]: trace histogram [3, 3, 3, 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] [2018-04-12 10:17:40,741 INFO L408 AbstractCegarLoop]: === Iteration 15 === [mainErr3RequiresViolation, mainErr1RequiresViolation, mainErr2RequiresViolation, mainErr4EnsuresViolationMEMORY_LEAK, mainErr0RequiresViolation, cstrncmpErr1RequiresViolation, cstrncmpErr5RequiresViolation, cstrncmpErr6RequiresViolation, cstrncmpErr0RequiresViolation, cstrncmpErr4RequiresViolation, cstrncmpErr7RequiresViolation, cstrncmpErr2RequiresViolation, cstrncmpErr3RequiresViolation, cstrncmpErr8RequiresViolation, cstrncmpErr9RequiresViolation]=== [2018-04-12 10:17:40,741 INFO L82 PathProgramCache]: Analyzing trace with hash -1148970598, now seen corresponding path program 1 times [2018-04-12 10:17:40,741 INFO L213 ckRefinementStrategy]: Switched to mode SMTINTERPOL_TREE_INTERPOLANTS [2018-04-12 10:17:40,741 INFO L68 tionRefinementEngine]: Using refinement strategy CamelRefinementStrategy [2018-04-12 10:17:40,742 INFO L119 rtionOrderModulation]: Craig nested/tree interpolation forces the following order [2018-04-12 10:17:40,742 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-04-12 10:17:40,742 INFO L119 rtionOrderModulation]: Craig nested/tree interpolation forces the following order [2018-04-12 10:17:40,755 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-04-12 10:17:40,756 WARN L250 erpolLogProxyWrapper]: Using partial proofs (cut at CNF-level). Set option :produce-proofs to true to get complete proofs. [2018-04-12 10:17:40,991 INFO L134 CoverageAnalysis]: Checked inductivity of 19 backedges. 0 proven. 19 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-04-12 10:17:40,991 INFO L308 seRefinementStrategy]: The current sequences of interpolants are not accepted, trying to find more. [2018-04-12 10:17:40,992 INFO L213 ckRefinementStrategy]: Switched to mode Z3_FP No working directory specified, using /home/ultimate/work/ultimate/releaseScripts/default/UAutomizer-linux/z3 Starting monitored process 4 with z3 -smt2 -in SMTLIB2_COMPLIANT=true -t:12000 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 4 with z3 -smt2 -in SMTLIB2_COMPLIANT=true -t:12000 [2018-04-12 10:17:41,003 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-04-12 10:17:41,023 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-04-12 10:17:41,025 INFO L270 TraceCheckSpWp]: Computing forward predicates... [2018-04-12 10:17:41,032 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 [2018-04-12 10:17:41,032 INFO L267 ElimStorePlain]: Start of recursive call 2: End of recursive call: and 1 xjuncts. [2018-04-12 10:17:41,038 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 [2018-04-12 10:17:41,038 INFO L267 ElimStorePlain]: Start of recursive call 3: End of recursive call: and 1 xjuncts. [2018-04-12 10:17:41,041 INFO L267 ElimStorePlain]: Start of recursive call 1: 2 dim-1 vars, End of recursive call: and 1 xjuncts. [2018-04-12 10:17:41,041 INFO L202 ElimStorePlain]: Needed 3 recursive calls to eliminate 2 variables, input treesize:16, output treesize:14 [2018-04-12 10:17:41,059 INFO L700 Elim1Store]: detected not equals via solver [2018-04-12 10:17:41,060 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 [2018-04-12 10:17:41,061 INFO L267 ElimStorePlain]: Start of recursive call 2: End of recursive call: and 1 xjuncts. [2018-04-12 10:17:41,067 INFO L700 Elim1Store]: detected not equals via solver [2018-04-12 10:17:41,068 INFO L700 Elim1Store]: detected not equals via solver [2018-04-12 10:17:41,068 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 [2018-04-12 10:17:41,069 INFO L267 ElimStorePlain]: Start of recursive call 3: End of recursive call: and 1 xjuncts. [2018-04-12 10:17:41,072 INFO L267 ElimStorePlain]: Start of recursive call 1: 2 dim-1 vars, End of recursive call: and 1 xjuncts. [2018-04-12 10:17:41,072 INFO L202 ElimStorePlain]: Needed 3 recursive calls to eliminate 2 variables, input treesize:25, output treesize:18 [2018-04-12 10:17:41,104 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 15 treesize of output 12 [2018-04-12 10:17:41,105 INFO L477 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 12 treesize of output 11 [2018-04-12 10:17:41,106 INFO L267 ElimStorePlain]: Start of recursive call 3: End of recursive call: and 1 xjuncts. [2018-04-12 10:17:41,107 INFO L267 ElimStorePlain]: Start of recursive call 2: 1 dim-1 vars, End of recursive call: and 1 xjuncts. [2018-04-12 10:17:41,110 INFO L267 ElimStorePlain]: Start of recursive call 1: 1 dim-2 vars, End of recursive call: and 1 xjuncts. [2018-04-12 10:17:41,110 INFO L202 ElimStorePlain]: Needed 3 recursive calls to eliminate 1 variables, input treesize:25, output treesize:21 [2018-04-12 10:17:41,132 INFO L477 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 2 select indices, 2 select index equivalence classes, 1 disjoint index pairs (out of 1 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 28 treesize of output 29 [2018-04-12 10:17:41,133 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 13 treesize of output 12 [2018-04-12 10:17:41,133 INFO L267 ElimStorePlain]: Start of recursive call 3: End of recursive call: and 1 xjuncts. [2018-04-12 10:17:41,136 INFO L267 ElimStorePlain]: Start of recursive call 2: 1 dim-1 vars, End of recursive call: and 1 xjuncts. [2018-04-12 10:17:41,139 INFO L267 ElimStorePlain]: Start of recursive call 1: 2 dim-0 vars, 1 dim-2 vars, End of recursive call: 2 dim-0 vars, and 1 xjuncts. [2018-04-12 10:17:41,139 INFO L202 ElimStorePlain]: Needed 3 recursive calls to eliminate 3 variables, input treesize:32, output treesize:28 [2018-04-12 10:17:41,282 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 31 treesize of output 29 [2018-04-12 10:17:41,287 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 15 treesize of output 12 [2018-04-12 10:17:41,287 INFO L267 ElimStorePlain]: Start of recursive call 3: End of recursive call: and 2 xjuncts. [2018-04-12 10:17:41,291 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 10 treesize of output 1 [2018-04-12 10:17:41,291 INFO L267 ElimStorePlain]: Start of recursive call 4: End of recursive call: and 1 xjuncts. [2018-04-12 10:17:41,293 INFO L267 ElimStorePlain]: Start of recursive call 2: 2 dim-1 vars, End of recursive call: and 2 xjuncts. [2018-04-12 10:17:41,297 INFO L267 ElimStorePlain]: Start of recursive call 1: 2 dim-0 vars, 1 dim-2 vars, End of recursive call: and 2 xjuncts. [2018-04-12 10:17:41,298 INFO L202 ElimStorePlain]: Needed 4 recursive calls to eliminate 3 variables, input treesize:45, output treesize:34 [2018-04-12 10:17:41,374 INFO L134 CoverageAnalysis]: Checked inductivity of 19 backedges. 9 proven. 10 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-04-12 10:17:41,392 INFO L320 seRefinementStrategy]: Constructing automaton from 0 perfect and 2 imperfect interpolant sequences. [2018-04-12 10:17:41,392 INFO L335 seRefinementStrategy]: Number of different interpolants: perfect sequences [] imperfect sequences [13, 15] total 25 [2018-04-12 10:17:41,393 INFO L442 AbstractCegarLoop]: Interpolant automaton has 26 states [2018-04-12 10:17:41,393 INFO L132 InterpolantAutomaton]: Constructing interpolant automaton starting with 26 interpolants. [2018-04-12 10:17:41,393 INFO L133 InterpolantAutomaton]: CoverageRelationStatistics Valid=59, Invalid=591, Unknown=0, NotChecked=0, Total=650 [2018-04-12 10:17:41,393 INFO L87 Difference]: Start difference. First operand 58 states and 59 transitions. Second operand 26 states. [2018-04-12 10:17:43,840 WARN L151 SmtUtils]: Spent 2026ms on a formula simplification. DAG size of input: 54 DAG size of output 41 [2018-04-12 10:17:44,262 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-04-12 10:17:44,262 INFO L93 Difference]: Finished difference Result 57 states and 58 transitions. [2018-04-12 10:17:44,263 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 17 states. [2018-04-12 10:17:44,263 INFO L78 Accepts]: Start accepts. Automaton has 26 states. Word has length 44 [2018-04-12 10:17:44,263 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-04-12 10:17:44,263 INFO L225 Difference]: With dead ends: 57 [2018-04-12 10:17:44,263 INFO L226 Difference]: Without dead ends: 57 [2018-04-12 10:17:44,263 INFO L567 BasicCegarLoop]: 0 DeclaredPredicates, 72 GetRequests, 32 SyntacticMatches, 2 SemanticMatches, 38 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 178 ImplicationChecksByTransitivity, 3.0s TimeCoverageRelationStatistics Valid=215, Invalid=1345, Unknown=0, NotChecked=0, Total=1560 [2018-04-12 10:17:44,264 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 57 states. [2018-04-12 10:17:44,265 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 57 to 53. [2018-04-12 10:17:44,265 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 53 states. [2018-04-12 10:17:44,265 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 53 states to 53 states and 54 transitions. [2018-04-12 10:17:44,265 INFO L78 Accepts]: Start accepts. Automaton has 53 states and 54 transitions. Word has length 44 [2018-04-12 10:17:44,265 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-04-12 10:17:44,265 INFO L459 AbstractCegarLoop]: Abstraction has 53 states and 54 transitions. [2018-04-12 10:17:44,265 INFO L460 AbstractCegarLoop]: Interpolant automaton has 26 states. [2018-04-12 10:17:44,266 INFO L276 IsEmpty]: Start isEmpty. Operand 53 states and 54 transitions. [2018-04-12 10:17:44,266 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 46 [2018-04-12 10:17:44,266 INFO L347 BasicCegarLoop]: Found error trace [2018-04-12 10:17:44,266 INFO L355 BasicCegarLoop]: trace histogram [3, 3, 3, 3, 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] [2018-04-12 10:17:44,266 INFO L408 AbstractCegarLoop]: === Iteration 16 === [mainErr3RequiresViolation, mainErr1RequiresViolation, mainErr2RequiresViolation, mainErr4EnsuresViolationMEMORY_LEAK, mainErr0RequiresViolation, cstrncmpErr1RequiresViolation, cstrncmpErr5RequiresViolation, cstrncmpErr6RequiresViolation, cstrncmpErr0RequiresViolation, cstrncmpErr4RequiresViolation, cstrncmpErr7RequiresViolation, cstrncmpErr2RequiresViolation, cstrncmpErr3RequiresViolation, cstrncmpErr8RequiresViolation, cstrncmpErr9RequiresViolation]=== [2018-04-12 10:17:44,266 INFO L82 PathProgramCache]: Analyzing trace with hash -1258350175, now seen corresponding path program 2 times [2018-04-12 10:17:44,266 INFO L213 ckRefinementStrategy]: Switched to mode SMTINTERPOL_TREE_INTERPOLANTS [2018-04-12 10:17:44,267 INFO L68 tionRefinementEngine]: Using refinement strategy CamelRefinementStrategy [2018-04-12 10:17:44,267 INFO L119 rtionOrderModulation]: Craig nested/tree interpolation forces the following order [2018-04-12 10:17:44,267 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-04-12 10:17:44,267 INFO L119 rtionOrderModulation]: Craig nested/tree interpolation forces the following order [2018-04-12 10:17:44,277 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-04-12 10:17:44,278 WARN L250 erpolLogProxyWrapper]: Using partial proofs (cut at CNF-level). Set option :produce-proofs to true to get complete proofs. [2018-04-12 10:17:44,553 INFO L134 CoverageAnalysis]: Checked inductivity of 21 backedges. 0 proven. 21 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-04-12 10:17:44,554 INFO L308 seRefinementStrategy]: The current sequences of interpolants are not accepted, trying to find more. [2018-04-12 10:17:44,554 INFO L213 ckRefinementStrategy]: Switched to mode Z3_FP No working directory specified, using /home/ultimate/work/ultimate/releaseScripts/default/UAutomizer-linux/z3 Starting monitored process 5 with z3 -smt2 -in SMTLIB2_COMPLIANT=true -t:12000 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 5 with z3 -smt2 -in SMTLIB2_COMPLIANT=true -t:12000 [2018-04-12 10:17:44,563 INFO L103 rtionOrderModulation]: Keeping assertion order OUTSIDE_LOOP_FIRST1 [2018-04-12 10:17:44,599 INFO L242 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST1 issued 2 check-sat command(s) [2018-04-12 10:17:44,600 INFO L243 tOrderPrioritization]: Conjunction of SSA is unsat [2018-04-12 10:17:44,603 INFO L270 TraceCheckSpWp]: Computing forward predicates... [2018-04-12 10:17:44,612 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 [2018-04-12 10:17:44,612 INFO L267 ElimStorePlain]: Start of recursive call 2: End of recursive call: and 1 xjuncts. [2018-04-12 10:17:44,615 INFO L267 ElimStorePlain]: Start of recursive call 1: 1 dim-1 vars, End of recursive call: and 1 xjuncts. [2018-04-12 10:17:44,616 INFO L202 ElimStorePlain]: Needed 2 recursive calls to eliminate 1 variables, input treesize:10, output treesize:9 [2018-04-12 10:17:44,637 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 16 treesize of output 13 [2018-04-12 10:17:44,639 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 13 treesize of output 12 [2018-04-12 10:17:44,639 INFO L267 ElimStorePlain]: Start of recursive call 3: End of recursive call: and 1 xjuncts. [2018-04-12 10:17:44,644 INFO L267 ElimStorePlain]: Start of recursive call 2: 1 dim-1 vars, End of recursive call: and 1 xjuncts. [2018-04-12 10:17:44,648 INFO L267 ElimStorePlain]: Start of recursive call 1: 1 dim-2 vars, End of recursive call: and 1 xjuncts. [2018-04-12 10:17:44,648 INFO L202 ElimStorePlain]: Needed 3 recursive calls to eliminate 1 variables, input treesize:20, output treesize:16 [2018-04-12 10:17:44,803 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 30 treesize of output 30 [2018-04-12 10:17:44,811 INFO L477 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 3 select indices, 3 select index equivalence classes, 0 disjoint index pairs (out of 3 index pairs), introduced 0 new quantified variables, introduced 2 case distinctions, treesize of input 22 treesize of output 25 [2018-04-12 10:17:44,812 INFO L267 ElimStorePlain]: Start of recursive call 3: End of recursive call: and 2 xjuncts. [2018-04-12 10:17:44,820 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 26 treesize of output 19 [2018-04-12 10:17:44,821 INFO L267 ElimStorePlain]: Start of recursive call 4: End of recursive call: and 1 xjuncts. [2018-04-12 10:17:44,830 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 19 treesize of output 17 [2018-04-12 10:17:44,830 INFO L267 ElimStorePlain]: Start of recursive call 5: End of recursive call: and 2 xjuncts. [2018-04-12 10:17:44,837 INFO L267 ElimStorePlain]: Start of recursive call 2: 3 dim-1 vars, End of recursive call: and 3 xjuncts. [2018-04-12 10:17:44,844 INFO L267 ElimStorePlain]: Start of recursive call 1: 2 dim-0 vars, 1 dim-2 vars, End of recursive call: and 2 xjuncts. [2018-04-12 10:17:44,845 INFO L202 ElimStorePlain]: Needed 5 recursive calls to eliminate 3 variables, input treesize:40, output treesize:34 [2018-04-12 10:17:44,897 INFO L134 CoverageAnalysis]: Checked inductivity of 21 backedges. 9 proven. 12 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-04-12 10:17:44,915 INFO L320 seRefinementStrategy]: Constructing automaton from 0 perfect and 2 imperfect interpolant sequences. [2018-04-12 10:17:44,915 INFO L335 seRefinementStrategy]: Number of different interpolants: perfect sequences [] imperfect sequences [14, 14] total 24 [2018-04-12 10:17:44,915 INFO L442 AbstractCegarLoop]: Interpolant automaton has 25 states [2018-04-12 10:17:44,915 INFO L132 InterpolantAutomaton]: Constructing interpolant automaton starting with 25 interpolants. [2018-04-12 10:17:44,915 INFO L133 InterpolantAutomaton]: CoverageRelationStatistics Valid=64, Invalid=536, Unknown=0, NotChecked=0, Total=600 [2018-04-12 10:17:44,916 INFO L87 Difference]: Start difference. First operand 53 states and 54 transitions. Second operand 25 states. [2018-04-12 10:17:45,617 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-04-12 10:17:45,617 INFO L93 Difference]: Finished difference Result 55 states and 56 transitions. [2018-04-12 10:17:45,617 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 21 states. [2018-04-12 10:17:45,617 INFO L78 Accepts]: Start accepts. Automaton has 25 states. Word has length 45 [2018-04-12 10:17:45,617 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-04-12 10:17:45,617 INFO L225 Difference]: With dead ends: 55 [2018-04-12 10:17:45,617 INFO L226 Difference]: Without dead ends: 0 [2018-04-12 10:17:45,618 INFO L567 BasicCegarLoop]: 0 DeclaredPredicates, 76 GetRequests, 32 SyntacticMatches, 3 SemanticMatches, 41 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 287 ImplicationChecksByTransitivity, 0.9s TimeCoverageRelationStatistics Valid=261, Invalid=1545, Unknown=0, NotChecked=0, Total=1806 [2018-04-12 10:17:45,618 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 0 states. [2018-04-12 10:17:45,618 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 0 to 0. [2018-04-12 10:17:45,618 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 0 states. [2018-04-12 10:17:45,618 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 0 states to 0 states and 0 transitions. [2018-04-12 10:17:45,618 INFO L78 Accepts]: Start accepts. Automaton has 0 states and 0 transitions. Word has length 45 [2018-04-12 10:17:45,618 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-04-12 10:17:45,618 INFO L459 AbstractCegarLoop]: Abstraction has 0 states and 0 transitions. [2018-04-12 10:17:45,618 INFO L460 AbstractCegarLoop]: Interpolant automaton has 25 states. [2018-04-12 10:17:45,619 INFO L276 IsEmpty]: Start isEmpty. Operand 0 states and 0 transitions. [2018-04-12 10:17:45,619 INFO L282 IsEmpty]: Finished isEmpty. No accepting run. [2018-04-12 10:17:45,621 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 12.04 10:17:45 BoogieIcfgContainer [2018-04-12 10:17:45,622 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2018-04-12 10:17:45,622 INFO L168 Benchmark]: Toolchain (without parser) took 9975.38 ms. Allocated memory was 393.7 MB in the beginning and 760.2 MB in the end (delta: 366.5 MB). Free memory was 332.2 MB in the beginning and 524.8 MB in the end (delta: -192.6 MB). Peak memory consumption was 173.8 MB. Max. memory is 5.3 GB. [2018-04-12 10:17:45,623 INFO L168 Benchmark]: CDTParser took 0.15 ms. Allocated memory is still 393.7 MB. Free memory is still 356.8 MB. There was no memory consumed. Max. memory is 5.3 GB. [2018-04-12 10:17:45,623 INFO L168 Benchmark]: CACSL2BoogieTranslator took 238.34 ms. Allocated memory is still 393.7 MB. Free memory was 330.9 MB in the beginning and 307.1 MB in the end (delta: 23.8 MB). Peak memory consumption was 23.8 MB. Max. memory is 5.3 GB. [2018-04-12 10:17:45,623 INFO L168 Benchmark]: Boogie Preprocessor took 40.87 ms. Allocated memory is still 393.7 MB. Free memory was 307.1 MB in the beginning and 304.5 MB in the end (delta: 2.6 MB). Peak memory consumption was 2.6 MB. Max. memory is 5.3 GB. [2018-04-12 10:17:45,623 INFO L168 Benchmark]: RCFGBuilder took 371.56 ms. Allocated memory was 393.7 MB in the beginning and 593.5 MB in the end (delta: 199.8 MB). Free memory was 304.5 MB in the beginning and 527.5 MB in the end (delta: -223.1 MB). Peak memory consumption was 23.4 MB. Max. memory is 5.3 GB. [2018-04-12 10:17:45,624 INFO L168 Benchmark]: TraceAbstraction took 9321.99 ms. Allocated memory was 593.5 MB in the beginning and 760.2 MB in the end (delta: 166.7 MB). Free memory was 527.5 MB in the beginning and 524.8 MB in the end (delta: 2.7 MB). Peak memory consumption was 169.4 MB. Max. memory is 5.3 GB. [2018-04-12 10:17:45,626 INFO L344 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.15 ms. Allocated memory is still 393.7 MB. Free memory is still 356.8 MB. There was no memory consumed. Max. memory is 5.3 GB. * CACSL2BoogieTranslator took 238.34 ms. Allocated memory is still 393.7 MB. Free memory was 330.9 MB in the beginning and 307.1 MB in the end (delta: 23.8 MB). Peak memory consumption was 23.8 MB. Max. memory is 5.3 GB. * Boogie Preprocessor took 40.87 ms. Allocated memory is still 393.7 MB. Free memory was 307.1 MB in the beginning and 304.5 MB in the end (delta: 2.6 MB). Peak memory consumption was 2.6 MB. Max. memory is 5.3 GB. * RCFGBuilder took 371.56 ms. Allocated memory was 393.7 MB in the beginning and 593.5 MB in the end (delta: 199.8 MB). Free memory was 304.5 MB in the beginning and 527.5 MB in the end (delta: -223.1 MB). Peak memory consumption was 23.4 MB. Max. memory is 5.3 GB. * TraceAbstraction took 9321.99 ms. Allocated memory was 593.5 MB in the beginning and 760.2 MB in the end (delta: 166.7 MB). Free memory was 527.5 MB in the beginning and 524.8 MB in the end (delta: 2.7 MB). Peak memory consumption was 169.4 MB. Max. memory is 5.3 GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - PositiveResult [Line: 567]: pointer dereference always succeeds For all program executions holds that pointer dereference always succeeds at this location - PositiveResult [Line: 566]: pointer dereference always succeeds For all program executions holds that pointer dereference always succeeds at this location - PositiveResult [Line: 567]: pointer dereference always succeeds For all program executions holds that pointer dereference always succeeds at this location - PositiveResult [Line: 555]: all allocated memory was freed For all program executions holds that all allocated memory was freed at this location - PositiveResult [Line: 566]: pointer dereference always succeeds For all program executions holds that pointer dereference always succeeds at this location - PositiveResult [Line: 545]: pointer dereference always succeeds For all program executions holds that pointer dereference always succeeds at this location - PositiveResult [Line: 546]: pointer dereference always succeeds For all program executions holds that pointer dereference always succeeds at this location - PositiveResult [Line: 551]: pointer dereference always succeeds For all program executions holds that pointer dereference always succeeds at this location - PositiveResult [Line: 545]: pointer dereference always succeeds For all program executions holds that pointer dereference always succeeds at this location - PositiveResult [Line: 546]: pointer dereference always succeeds For all program executions holds that pointer dereference always succeeds at this location - PositiveResult [Line: 551]: pointer dereference always succeeds For all program executions holds that pointer dereference always succeeds at this location - PositiveResult [Line: 545]: pointer dereference always succeeds For all program executions holds that pointer dereference always succeeds at this location - PositiveResult [Line: 545]: pointer dereference always succeeds For all program executions holds that pointer dereference always succeeds at this location - PositiveResult [Line: 552]: pointer dereference always succeeds For all program executions holds that pointer dereference always succeeds at this location - PositiveResult [Line: 552]: pointer dereference always succeeds For all program executions holds that pointer dereference always succeeds at this location - AllSpecificationsHoldResult: All specifications hold 15 specifications checked. All of them hold - StatisticsResult: Ultimate Automizer benchmark data CFG has 6 procedures, 67 locations, 15 error locations. SAFE Result, 9.2s OverallTime, 16 OverallIterations, 3 TraceHistogramMax, 6.0s AutomataDifference, 0.0s DeadEndRemovalTime, 0.0s HoareAnnotationTime, HoareTripleCheckerStatistics: 664 SDtfs, 1049 SDslu, 2496 SDs, 0 SdLazy, 2277 SolverSat, 137 SolverUnsat, 1 SolverUnknown, 0 SolverNotchecked, 1.5s Time, PredicateUnifierStatistics: 0 DeclaredPredicates, 359 GetRequests, 132 SyntacticMatches, 5 SemanticMatches, 222 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1063 ImplicationChecksByTransitivity, 6.0s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=61occurred in iteration=0, traceCheckStatistics: No data available, InterpolantConsolidationStatistics: No data available, PathInvariantsStatistics: No data available, 0/0 InterpolantCoveringCapability, TotalInterpolationStatistics: No data available, 0.0s AbstIntTime, 0 AbstIntIterations, 0 AbstIntStrong, NaN AbsIntWeakeningRatio, NaN AbsIntAvgWeakeningVarsNumRemoved, NaN AbsIntAvgWeakenedConjuncts, 0.0s DumpTime, AutomataMinimizationStatistics: 0.0s AutomataMinimizationTime, 16 MinimizatonAttempts, 32 StatesRemovedByMinimization, 5 NontrivialMinimizations, HoareAnnotationStatistics: No data available, RefinementEngineStatistics: TraceCheckStatistics: 0.0s SsaConstructionTime, 0.2s SatisfiabilityAnalysisTime, 2.6s InterpolantComputationTime, 574 NumberOfCodeBlocks, 574 NumberOfCodeBlocksAsserted, 21 NumberOfCheckSat, 554 ConstructedInterpolants, 41 QuantifiedInterpolants, 212920 SizeOfPredicates, 42 NumberOfNonLiveVariables, 656 ConjunctsInSsa, 113 ConjunctsInUnsatCore, 20 InterpolantComputations, 13 PerfectInterpolantSequences, 33/109 InterpolantCoveringCapability, InvariantSynthesisStatistics: No data available, InterpolantConsolidationStatistics: No data available, ReuseStatistics: No data available RESULT: Ultimate proved your program to be correct! Written .csv to /home/ultimate/work/ultimate/releaseScripts/default/UAutomizer-linux/../../../releaseScripts/default/UAutomizer-linux/csv/cstrncmp-alloca_true-valid-memsafety_true-termination.i_svcomp-DerefFreeMemtrack-32bit-Automizer_Camel.epf_AutomizerC.xml/Csv-Benchmark-0-2018-04-12_10-17-45-632.csv Written .csv to /home/ultimate/work/ultimate/releaseScripts/default/UAutomizer-linux/../../../releaseScripts/default/UAutomizer-linux/csv/cstrncmp-alloca_true-valid-memsafety_true-termination.i_svcomp-DerefFreeMemtrack-32bit-Automizer_Camel.epf_AutomizerC.xml/Csv-TraceAbstractionBenchmarks-0-2018-04-12_10-17-45-632.csv Received shutdown request...