java -Xmx6000000000 -jar ./plugins/org.eclipse.equinox.launcher_1.3.100.v20150511-1540.jar -data ./data --generate-csv --csv-dir ../../../releaseScripts/default/UAutomizer-linux/csv -tc ../../../trunk/examples/toolchains/AutomizerC.xml -s ../../../trunk/examples/settings/ai/eq-bench/svcomp-DerefFreeMemtrack-32bit-Automizer_Fixed_noBitfields+AI_EQ_SS.epf -i ../../../trunk/examples/svcomp/array-memsafety/openbsd_cstrncat-alloca_true-valid-memsafety_true-termination.i -------------------------------------------------------------------------------- This is Ultimate 0.1.23-835382a-m [2018-04-05 16:18:57,128 INFO L170 SettingsManager]: Resetting all preferences to default values... [2018-04-05 16:18:57,130 INFO L174 SettingsManager]: Resetting UltimateCore preferences to default values [2018-04-05 16:18:57,179 INFO L177 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2018-04-05 16:18:57,179 INFO L174 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2018-04-05 16:18:57,180 INFO L174 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2018-04-05 16:18:57,181 INFO L174 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2018-04-05 16:18:57,184 INFO L174 SettingsManager]: Resetting LassoRanker preferences to default values [2018-04-05 16:18:57,186 INFO L174 SettingsManager]: Resetting Reaching Definitions preferences to default values [2018-04-05 16:18:57,187 INFO L174 SettingsManager]: Resetting SyntaxChecker preferences to default values [2018-04-05 16:18:57,188 INFO L177 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2018-04-05 16:18:57,188 INFO L174 SettingsManager]: Resetting LTL2Aut preferences to default values [2018-04-05 16:18:57,189 INFO L174 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2018-04-05 16:18:57,191 INFO L174 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2018-04-05 16:18:57,192 INFO L174 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2018-04-05 16:18:57,194 INFO L174 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2018-04-05 16:18:57,196 INFO L174 SettingsManager]: Resetting CodeCheck preferences to default values [2018-04-05 16:18:57,198 INFO L174 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2018-04-05 16:18:57,199 INFO L174 SettingsManager]: Resetting RCFGBuilder preferences to default values [2018-04-05 16:18:57,201 INFO L174 SettingsManager]: Resetting TraceAbstraction preferences to default values [2018-04-05 16:18:57,210 INFO L177 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2018-04-05 16:18:57,211 INFO L177 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2018-04-05 16:18:57,211 INFO L174 SettingsManager]: Resetting IcfgTransformer preferences to default values [2018-04-05 16:18:57,212 INFO L174 SettingsManager]: Resetting Boogie Printer preferences to default values [2018-04-05 16:18:57,213 INFO L174 SettingsManager]: Resetting Witness Printer preferences to default values [2018-04-05 16:18:57,228 INFO L177 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2018-04-05 16:18:57,229 INFO L174 SettingsManager]: Resetting CDTParser preferences to default values [2018-04-05 16:18:57,230 INFO L174 SettingsManager]: Resetting PEA to Boogie preferences to default values [2018-04-05 16:18:57,231 INFO L177 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2018-04-05 16:18:57,231 INFO L174 SettingsManager]: Resetting Witness Parser preferences to default values [2018-04-05 16:18:57,232 INFO L181 SettingsManager]: Finished resetting all preferences to default values... [2018-04-05 16:18:57,245 INFO L98 SettingsManager]: Beginning loading settings from /storage/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/settings/ai/eq-bench/svcomp-DerefFreeMemtrack-32bit-Automizer_Fixed_noBitfields+AI_EQ_SS.epf [2018-04-05 16:18:57,302 INFO L110 SettingsManager]: Loading preferences was successful [2018-04-05 16:18:57,303 INFO L112 SettingsManager]: Preferences different from defaults after loading the file: [2018-04-05 16:18:57,303 INFO L131 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2018-04-05 16:18:57,303 INFO L133 SettingsManager]: * ultimate.logging.details=de.uni_freiburg.informatik.ultimate.plugins.icfgtransformation=DEBUG; [2018-04-05 16:18:57,304 INFO L131 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2018-04-05 16:18:57,304 INFO L133 SettingsManager]: * to procedures, called more than once=true [2018-04-05 16:18:57,305 INFO L131 SettingsManager]: Preferences of Abstract Interpretation differ from their defaults: [2018-04-05 16:18:57,305 INFO L133 SettingsManager]: * Abstract domain for RCFG-of-the-future=VPDomain [2018-04-05 16:18:57,305 INFO L133 SettingsManager]: * Use the RCFG-of-the-future interface=true [2018-04-05 16:18:57,306 INFO L131 SettingsManager]: Preferences of LTL2Aut differ from their defaults: [2018-04-05 16:18:57,306 INFO L133 SettingsManager]: * Property to check=[] a a: x > 42 [2018-04-05 16:18:57,306 INFO L131 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2018-04-05 16:18:57,306 INFO L133 SettingsManager]: * sizeof long=4 [2018-04-05 16:18:57,306 INFO L133 SettingsManager]: * Check unreachability of error function in SV-COMP mode=false [2018-04-05 16:18:57,307 INFO L133 SettingsManager]: * Overapproximate operations on floating types=true [2018-04-05 16:18:57,307 INFO L133 SettingsManager]: * sizeof POINTER=4 [2018-04-05 16:18:57,307 INFO L133 SettingsManager]: * Check division by zero=IGNORE [2018-04-05 16:18:57,307 INFO L133 SettingsManager]: * Check for the main procedure if all allocated memory was freed=true [2018-04-05 16:18:57,307 INFO L133 SettingsManager]: * SV-COMP memtrack compatibility mode=true [2018-04-05 16:18:57,308 INFO L133 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2018-04-05 16:18:57,308 INFO L133 SettingsManager]: * sizeof long double=12 [2018-04-05 16:18:57,308 INFO L131 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2018-04-05 16:18:57,308 INFO L133 SettingsManager]: * Size of a code block=SingleStatement [2018-04-05 16:18:57,308 INFO L133 SettingsManager]: * Add additional assume for each assert=false [2018-04-05 16:18:57,309 INFO L133 SettingsManager]: * SMT solver=External_DefaultMode [2018-04-05 16:18:57,314 INFO L133 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2018-04-05 16:18:57,314 INFO L131 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2018-04-05 16:18:57,315 INFO L133 SettingsManager]: * Interpolant automaton=TWOTRACK [2018-04-05 16:18:57,315 INFO L133 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2018-04-05 16:18:57,315 INFO L133 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2018-04-05 16:18:57,315 INFO L133 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2018-04-05 16:18:57,315 INFO L133 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2018-04-05 16:18:57,316 INFO L133 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2018-04-05 16:18:57,317 INFO L131 SettingsManager]: Preferences of IcfgTransformer differ from their defaults: [2018-04-05 16:18:57,317 INFO L133 SettingsManager]: * TransformationType=HEAP_SEPARATOR [2018-04-05 16:18:57,317 INFO L131 SettingsManager]: Preferences of Boogie Printer differ from their defaults: [2018-04-05 16:18:57,317 INFO L133 SettingsManager]: * Dump path:=C:\Users\alex\AppData\Local\Temp\ [2018-04-05 16:18:57,443 INFO L81 nceAwareModelManager]: Repository-Root is: /tmp [2018-04-05 16:18:57,481 INFO L266 ainManager$Toolchain]: [Toolchain 1]: Parser(s) successfully (re)initialized [2018-04-05 16:18:57,488 INFO L222 ainManager$Toolchain]: [Toolchain 1]: Toolchain data selected. [2018-04-05 16:18:57,499 INFO L271 PluginConnector]: Initializing CDTParser... [2018-04-05 16:18:57,500 INFO L276 PluginConnector]: CDTParser initialized [2018-04-05 16:18:57,500 INFO L431 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/svcomp/array-memsafety/openbsd_cstrncat-alloca_true-valid-memsafety_true-termination.i [2018-04-05 16:18:58,119 INFO L225 CDTParser]: Created temporary CDT project at /storage/ultimate/releaseScripts/default/UAutomizer-linux/data/FLAG230ab4123 [2018-04-05 16:18:58,788 INFO L287 CDTParser]: IsIndexed: true [2018-04-05 16:18:58,788 INFO L288 CDTParser]: Found 1 translation units. [2018-04-05 16:18:58,790 INFO L168 CDTParser]: Scanning openbsd_cstrncat-alloca_true-valid-memsafety_true-termination.i [2018-04-05 16:18:58,834 INFO L210 ultiparseSymbolTable]: Include resolver: [2018-04-05 16:18:58,835 INFO L215 ultiparseSymbolTable]: [2018-04-05 16:18:58,835 INFO L218 ultiparseSymbolTable]: Function table: [2018-04-05 16:18:58,835 INFO L221 ultiparseSymbolTable]: Function definition of __U_MULTI_fopenbsd_cstrncat_alloca_true_valid_memsafety_true_termination_i____bswap_64 ('__bswap_64') in openbsd_cstrncat-alloca_true-valid-memsafety_true-termination.i [2018-04-05 16:18:58,835 INFO L221 ultiparseSymbolTable]: Function definition of __U_MULTI_fopenbsd_cstrncat_alloca_true_valid_memsafety_true_termination_i____bswap_32 ('__bswap_32') in openbsd_cstrncat-alloca_true-valid-memsafety_true-termination.i [2018-04-05 16:18:58,835 INFO L221 ultiparseSymbolTable]: Function definition of null ('main') in openbsd_cstrncat-alloca_true-valid-memsafety_true-termination.i [2018-04-05 16:18:58,835 INFO L221 ultiparseSymbolTable]: Function definition of __U_MULTI_fopenbsd_cstrncat_alloca_true_valid_memsafety_true_termination_i__cstrncat ('cstrncat') in openbsd_cstrncat-alloca_true-valid-memsafety_true-termination.i [2018-04-05 16:18:58,836 INFO L227 ultiparseSymbolTable]: Global variable table: [2018-04-05 16:18:58,846 INFO L230 ultiparseSymbolTable]: Global variable declaration of __U_MULTI_fopenbsd_cstrncat_alloca_true_valid_memsafety_true_termination_i__div_t in openbsd_cstrncat-alloca_true-valid-memsafety_true-termination.i [2018-04-05 16:18:58,846 INFO L230 ultiparseSymbolTable]: Global variable declaration of __U_MULTI_fopenbsd_cstrncat_alloca_true_valid_memsafety_true_termination_i____suseconds_t in openbsd_cstrncat-alloca_true-valid-memsafety_true-termination.i [2018-04-05 16:18:58,846 INFO L230 ultiparseSymbolTable]: Global variable declaration of __U_MULTI_fopenbsd_cstrncat_alloca_true_valid_memsafety_true_termination_i__fsblkcnt_t in openbsd_cstrncat-alloca_true-valid-memsafety_true-termination.i [2018-04-05 16:18:58,846 INFO L230 ultiparseSymbolTable]: Global variable declaration of __U_MULTI_fopenbsd_cstrncat_alloca_true_valid_memsafety_true_termination_i__time_t in openbsd_cstrncat-alloca_true-valid-memsafety_true-termination.i [2018-04-05 16:18:58,846 INFO L230 ultiparseSymbolTable]: Global variable declaration of __U_MULTI_fopenbsd_cstrncat_alloca_true_valid_memsafety_true_termination_i__mode_t in openbsd_cstrncat-alloca_true-valid-memsafety_true-termination.i [2018-04-05 16:18:58,847 INFO L230 ultiparseSymbolTable]: Global variable declaration of __U_MULTI_fopenbsd_cstrncat_alloca_true_valid_memsafety_true_termination_i__caddr_t in openbsd_cstrncat-alloca_true-valid-memsafety_true-termination.i [2018-04-05 16:18:58,847 INFO L230 ultiparseSymbolTable]: Global variable declaration of __U_MULTI_fopenbsd_cstrncat_alloca_true_valid_memsafety_true_termination_i__u_int in openbsd_cstrncat-alloca_true-valid-memsafety_true-termination.i [2018-04-05 16:18:58,847 INFO L230 ultiparseSymbolTable]: Global variable declaration of __U_MULTI_fopenbsd_cstrncat_alloca_true_valid_memsafety_true_termination_i____rlim64_t in openbsd_cstrncat-alloca_true-valid-memsafety_true-termination.i [2018-04-05 16:18:58,847 INFO L230 ultiparseSymbolTable]: Global variable declaration of __U_MULTI_fopenbsd_cstrncat_alloca_true_valid_memsafety_true_termination_i__uid_t in openbsd_cstrncat-alloca_true-valid-memsafety_true-termination.i [2018-04-05 16:18:58,847 INFO L230 ultiparseSymbolTable]: Global variable declaration of __U_MULTI_fopenbsd_cstrncat_alloca_true_valid_memsafety_true_termination_i____uint32_t in openbsd_cstrncat-alloca_true-valid-memsafety_true-termination.i [2018-04-05 16:18:58,847 INFO L230 ultiparseSymbolTable]: Global variable declaration of __U_MULTI_fopenbsd_cstrncat_alloca_true_valid_memsafety_true_termination_i__pthread_rwlock_t in openbsd_cstrncat-alloca_true-valid-memsafety_true-termination.i [2018-04-05 16:18:58,847 INFO L230 ultiparseSymbolTable]: Global variable declaration of __U_MULTI_fopenbsd_cstrncat_alloca_true_valid_memsafety_true_termination_i____id_t in openbsd_cstrncat-alloca_true-valid-memsafety_true-termination.i [2018-04-05 16:18:58,848 INFO L230 ultiparseSymbolTable]: Global variable declaration of __U_MULTI_fopenbsd_cstrncat_alloca_true_valid_memsafety_true_termination_i__size_t in openbsd_cstrncat-alloca_true-valid-memsafety_true-termination.i [2018-04-05 16:18:58,848 INFO L230 ultiparseSymbolTable]: Global variable declaration of __U_MULTI_fopenbsd_cstrncat_alloca_true_valid_memsafety_true_termination_i____syscall_ulong_t in openbsd_cstrncat-alloca_true-valid-memsafety_true-termination.i [2018-04-05 16:18:58,848 INFO L230 ultiparseSymbolTable]: Global variable declaration of __U_MULTI_fopenbsd_cstrncat_alloca_true_valid_memsafety_true_termination_i____int32_t in openbsd_cstrncat-alloca_true-valid-memsafety_true-termination.i [2018-04-05 16:18:58,848 INFO L230 ultiparseSymbolTable]: Global variable declaration of __U_MULTI_fopenbsd_cstrncat_alloca_true_valid_memsafety_true_termination_i____caddr_t in openbsd_cstrncat-alloca_true-valid-memsafety_true-termination.i [2018-04-05 16:18:58,848 INFO L230 ultiparseSymbolTable]: Global variable declaration of __U_MULTI_fopenbsd_cstrncat_alloca_true_valid_memsafety_true_termination_i____mode_t in openbsd_cstrncat-alloca_true-valid-memsafety_true-termination.i [2018-04-05 16:18:58,848 INFO L230 ultiparseSymbolTable]: Global variable declaration of __U_MULTI_fopenbsd_cstrncat_alloca_true_valid_memsafety_true_termination_i____ssize_t in openbsd_cstrncat-alloca_true-valid-memsafety_true-termination.i [2018-04-05 16:18:58,848 INFO L230 ultiparseSymbolTable]: Global variable declaration of __U_MULTI_fopenbsd_cstrncat_alloca_true_valid_memsafety_true_termination_i__blksize_t in openbsd_cstrncat-alloca_true-valid-memsafety_true-termination.i [2018-04-05 16:18:58,848 INFO L230 ultiparseSymbolTable]: Global variable declaration of __U_MULTI_fopenbsd_cstrncat_alloca_true_valid_memsafety_true_termination_i__key_t in openbsd_cstrncat-alloca_true-valid-memsafety_true-termination.i [2018-04-05 16:18:58,849 INFO L230 ultiparseSymbolTable]: Global variable declaration of __U_MULTI_fopenbsd_cstrncat_alloca_true_valid_memsafety_true_termination_i____dev_t in openbsd_cstrncat-alloca_true-valid-memsafety_true-termination.i [2018-04-05 16:18:58,849 INFO L230 ultiparseSymbolTable]: Global variable declaration of __U_MULTI_fopenbsd_cstrncat_alloca_true_valid_memsafety_true_termination_i__pid_t in openbsd_cstrncat-alloca_true-valid-memsafety_true-termination.i [2018-04-05 16:18:58,849 INFO L230 ultiparseSymbolTable]: Global variable declaration of __U_MULTI_fopenbsd_cstrncat_alloca_true_valid_memsafety_true_termination_i__int32_t in openbsd_cstrncat-alloca_true-valid-memsafety_true-termination.i [2018-04-05 16:18:58,850 INFO L230 ultiparseSymbolTable]: Global variable declaration of __U_MULTI_fopenbsd_cstrncat_alloca_true_valid_memsafety_true_termination_i____u_short in openbsd_cstrncat-alloca_true-valid-memsafety_true-termination.i [2018-04-05 16:18:58,850 INFO L230 ultiparseSymbolTable]: Global variable declaration of __U_MULTI_fopenbsd_cstrncat_alloca_true_valid_memsafety_true_termination_i__fsfilcnt_t in openbsd_cstrncat-alloca_true-valid-memsafety_true-termination.i [2018-04-05 16:18:58,850 INFO L230 ultiparseSymbolTable]: Global variable declaration of __U_MULTI_fopenbsd_cstrncat_alloca_true_valid_memsafety_true_termination_i__fd_set in openbsd_cstrncat-alloca_true-valid-memsafety_true-termination.i [2018-04-05 16:18:58,850 INFO L230 ultiparseSymbolTable]: Global variable declaration of __U_MULTI_fopenbsd_cstrncat_alloca_true_valid_memsafety_true_termination_i__gid_t in openbsd_cstrncat-alloca_true-valid-memsafety_true-termination.i [2018-04-05 16:18:58,850 INFO L230 ultiparseSymbolTable]: Global variable declaration of __U_MULTI_fopenbsd_cstrncat_alloca_true_valid_memsafety_true_termination_i____blkcnt64_t in openbsd_cstrncat-alloca_true-valid-memsafety_true-termination.i [2018-04-05 16:18:58,850 INFO L230 ultiparseSymbolTable]: Global variable declaration of __U_MULTI_fopenbsd_cstrncat_alloca_true_valid_memsafety_true_termination_i__ulong in openbsd_cstrncat-alloca_true-valid-memsafety_true-termination.i [2018-04-05 16:18:58,850 INFO L230 ultiparseSymbolTable]: Global variable declaration of __U_MULTI_fopenbsd_cstrncat_alloca_true_valid_memsafety_true_termination_i____int8_t in openbsd_cstrncat-alloca_true-valid-memsafety_true-termination.i [2018-04-05 16:18:58,850 INFO L230 ultiparseSymbolTable]: Global variable declaration of __U_MULTI_fopenbsd_cstrncat_alloca_true_valid_memsafety_true_termination_i__register_t in openbsd_cstrncat-alloca_true-valid-memsafety_true-termination.i [2018-04-05 16:18:58,851 INFO L230 ultiparseSymbolTable]: Global variable declaration of __U_MULTI_fopenbsd_cstrncat_alloca_true_valid_memsafety_true_termination_i__sigset_t in openbsd_cstrncat-alloca_true-valid-memsafety_true-termination.i [2018-04-05 16:18:58,851 INFO L230 ultiparseSymbolTable]: Global variable declaration of __U_MULTI_fopenbsd_cstrncat_alloca_true_valid_memsafety_true_termination_i__pthread_barrierattr_t in openbsd_cstrncat-alloca_true-valid-memsafety_true-termination.i [2018-04-05 16:18:58,851 INFO L230 ultiparseSymbolTable]: Global variable declaration of __U_MULTI_fopenbsd_cstrncat_alloca_true_valid_memsafety_true_termination_i__daddr_t in openbsd_cstrncat-alloca_true-valid-memsafety_true-termination.i [2018-04-05 16:18:58,851 INFO L230 ultiparseSymbolTable]: Global variable declaration of __U_MULTI_fopenbsd_cstrncat_alloca_true_valid_memsafety_true_termination_i____uint16_t in openbsd_cstrncat-alloca_true-valid-memsafety_true-termination.i [2018-04-05 16:18:58,851 INFO L230 ultiparseSymbolTable]: Global variable declaration of __U_MULTI_fopenbsd_cstrncat_alloca_true_valid_memsafety_true_termination_i__pthread_key_t in openbsd_cstrncat-alloca_true-valid-memsafety_true-termination.i [2018-04-05 16:18:58,851 INFO L230 ultiparseSymbolTable]: Global variable declaration of __U_MULTI_fopenbsd_cstrncat_alloca_true_valid_memsafety_true_termination_i____time_t in openbsd_cstrncat-alloca_true-valid-memsafety_true-termination.i [2018-04-05 16:18:58,851 INFO L230 ultiparseSymbolTable]: Global variable declaration of __U_MULTI_fopenbsd_cstrncat_alloca_true_valid_memsafety_true_termination_i__int8_t in openbsd_cstrncat-alloca_true-valid-memsafety_true-termination.i [2018-04-05 16:18:58,851 INFO L230 ultiparseSymbolTable]: Global variable declaration of __U_MULTI_fopenbsd_cstrncat_alloca_true_valid_memsafety_true_termination_i____WAIT_STATUS in openbsd_cstrncat-alloca_true-valid-memsafety_true-termination.i [2018-04-05 16:18:58,852 INFO L230 ultiparseSymbolTable]: Global variable declaration of __U_MULTI_fopenbsd_cstrncat_alloca_true_valid_memsafety_true_termination_i____qaddr_t in openbsd_cstrncat-alloca_true-valid-memsafety_true-termination.i [2018-04-05 16:18:58,852 INFO L230 ultiparseSymbolTable]: Global variable declaration of __U_MULTI_fopenbsd_cstrncat_alloca_true_valid_memsafety_true_termination_i____blksize_t in openbsd_cstrncat-alloca_true-valid-memsafety_true-termination.i [2018-04-05 16:18:58,852 INFO L230 ultiparseSymbolTable]: Global variable declaration of __U_MULTI_fopenbsd_cstrncat_alloca_true_valid_memsafety_true_termination_i____syscall_slong_t in openbsd_cstrncat-alloca_true-valid-memsafety_true-termination.i [2018-04-05 16:18:58,852 INFO L230 ultiparseSymbolTable]: Global variable declaration of __U_MULTI_fopenbsd_cstrncat_alloca_true_valid_memsafety_true_termination_i____fsblkcnt_t in openbsd_cstrncat-alloca_true-valid-memsafety_true-termination.i [2018-04-05 16:18:58,852 INFO L230 ultiparseSymbolTable]: Global variable declaration of __U_MULTI_fopenbsd_cstrncat_alloca_true_valid_memsafety_true_termination_i____fsfilcnt_t in openbsd_cstrncat-alloca_true-valid-memsafety_true-termination.i [2018-04-05 16:18:58,852 INFO L230 ultiparseSymbolTable]: Global variable declaration of __U_MULTI_fopenbsd_cstrncat_alloca_true_valid_memsafety_true_termination_i__ino_t in openbsd_cstrncat-alloca_true-valid-memsafety_true-termination.i [2018-04-05 16:18:58,852 INFO L230 ultiparseSymbolTable]: Global variable declaration of __U_MULTI_fopenbsd_cstrncat_alloca_true_valid_memsafety_true_termination_i____useconds_t in openbsd_cstrncat-alloca_true-valid-memsafety_true-termination.i [2018-04-05 16:18:58,853 INFO L230 ultiparseSymbolTable]: Global variable declaration of __U_MULTI_fopenbsd_cstrncat_alloca_true_valid_memsafety_true_termination_i__loff_t in openbsd_cstrncat-alloca_true-valid-memsafety_true-termination.i [2018-04-05 16:18:58,853 INFO L230 ultiparseSymbolTable]: Global variable declaration of __U_MULTI_fopenbsd_cstrncat_alloca_true_valid_memsafety_true_termination_i____fsfilcnt64_t in openbsd_cstrncat-alloca_true-valid-memsafety_true-termination.i [2018-04-05 16:18:58,853 INFO L230 ultiparseSymbolTable]: Global variable declaration of __U_MULTI_fopenbsd_cstrncat_alloca_true_valid_memsafety_true_termination_i__pthread_mutex_t in openbsd_cstrncat-alloca_true-valid-memsafety_true-termination.i [2018-04-05 16:18:58,853 INFO L230 ultiparseSymbolTable]: Global variable declaration of __U_MULTI_fopenbsd_cstrncat_alloca_true_valid_memsafety_true_termination_i__u_int64_t in openbsd_cstrncat-alloca_true-valid-memsafety_true-termination.i [2018-04-05 16:18:58,853 INFO L230 ultiparseSymbolTable]: Global variable declaration of __U_MULTI_fopenbsd_cstrncat_alloca_true_valid_memsafety_true_termination_i__ldiv_t in openbsd_cstrncat-alloca_true-valid-memsafety_true-termination.i [2018-04-05 16:18:58,853 INFO L230 ultiparseSymbolTable]: Global variable declaration of __U_MULTI_fopenbsd_cstrncat_alloca_true_valid_memsafety_true_termination_i__ushort in openbsd_cstrncat-alloca_true-valid-memsafety_true-termination.i [2018-04-05 16:18:58,853 INFO L230 ultiparseSymbolTable]: Global variable declaration of __U_MULTI_fopenbsd_cstrncat_alloca_true_valid_memsafety_true_termination_i__u_quad_t in openbsd_cstrncat-alloca_true-valid-memsafety_true-termination.i [2018-04-05 16:18:58,853 INFO L230 ultiparseSymbolTable]: Global variable declaration of __U_MULTI_fopenbsd_cstrncat_alloca_true_valid_memsafety_true_termination_i____int64_t in openbsd_cstrncat-alloca_true-valid-memsafety_true-termination.i [2018-04-05 16:18:58,854 INFO L230 ultiparseSymbolTable]: Global variable declaration of __U_MULTI_fopenbsd_cstrncat_alloca_true_valid_memsafety_true_termination_i____key_t in openbsd_cstrncat-alloca_true-valid-memsafety_true-termination.i [2018-04-05 16:18:58,864 INFO L230 ultiparseSymbolTable]: Global variable declaration of __U_MULTI_fopenbsd_cstrncat_alloca_true_valid_memsafety_true_termination_i____uint8_t in openbsd_cstrncat-alloca_true-valid-memsafety_true-termination.i [2018-04-05 16:18:58,864 INFO L230 ultiparseSymbolTable]: Global variable declaration of __U_MULTI_fopenbsd_cstrncat_alloca_true_valid_memsafety_true_termination_i__clockid_t in openbsd_cstrncat-alloca_true-valid-memsafety_true-termination.i [2018-04-05 16:18:58,864 INFO L230 ultiparseSymbolTable]: Global variable declaration of __U_MULTI_fopenbsd_cstrncat_alloca_true_valid_memsafety_true_termination_i____clockid_t in openbsd_cstrncat-alloca_true-valid-memsafety_true-termination.i [2018-04-05 16:18:58,864 INFO L230 ultiparseSymbolTable]: Global variable declaration of __U_MULTI_fopenbsd_cstrncat_alloca_true_valid_memsafety_true_termination_i__pthread_spinlock_t in openbsd_cstrncat-alloca_true-valid-memsafety_true-termination.i [2018-04-05 16:18:58,864 INFO L230 ultiparseSymbolTable]: Global variable declaration of __U_MULTI_fopenbsd_cstrncat_alloca_true_valid_memsafety_true_termination_i____daddr_t in openbsd_cstrncat-alloca_true-valid-memsafety_true-termination.i [2018-04-05 16:18:58,865 INFO L230 ultiparseSymbolTable]: Global variable declaration of __U_MULTI_fopenbsd_cstrncat_alloca_true_valid_memsafety_true_termination_i__pthread_cond_t in openbsd_cstrncat-alloca_true-valid-memsafety_true-termination.i [2018-04-05 16:18:58,865 INFO L230 ultiparseSymbolTable]: Global variable declaration of __U_MULTI_fopenbsd_cstrncat_alloca_true_valid_memsafety_true_termination_i__int64_t in openbsd_cstrncat-alloca_true-valid-memsafety_true-termination.i [2018-04-05 16:18:58,865 INFO L230 ultiparseSymbolTable]: Global variable declaration of __U_MULTI_fopenbsd_cstrncat_alloca_true_valid_memsafety_true_termination_i__id_t in openbsd_cstrncat-alloca_true-valid-memsafety_true-termination.i [2018-04-05 16:18:58,865 INFO L230 ultiparseSymbolTable]: Global variable declaration of __U_MULTI_fopenbsd_cstrncat_alloca_true_valid_memsafety_true_termination_i__pthread_condattr_t in openbsd_cstrncat-alloca_true-valid-memsafety_true-termination.i [2018-04-05 16:18:58,865 INFO L230 ultiparseSymbolTable]: Global variable declaration of __U_MULTI_fopenbsd_cstrncat_alloca_true_valid_memsafety_true_termination_i____loff_t in openbsd_cstrncat-alloca_true-valid-memsafety_true-termination.i [2018-04-05 16:18:58,865 INFO L230 ultiparseSymbolTable]: Global variable declaration of __U_MULTI_fopenbsd_cstrncat_alloca_true_valid_memsafety_true_termination_i__quad_t in openbsd_cstrncat-alloca_true-valid-memsafety_true-termination.i [2018-04-05 16:18:58,865 INFO L230 ultiparseSymbolTable]: Global variable declaration of __U_MULTI_fopenbsd_cstrncat_alloca_true_valid_memsafety_true_termination_i____u_int in openbsd_cstrncat-alloca_true-valid-memsafety_true-termination.i [2018-04-05 16:18:58,865 INFO L230 ultiparseSymbolTable]: Global variable declaration of __U_MULTI_fopenbsd_cstrncat_alloca_true_valid_memsafety_true_termination_i__u_int16_t in openbsd_cstrncat-alloca_true-valid-memsafety_true-termination.i [2018-04-05 16:18:58,866 INFO L230 ultiparseSymbolTable]: Global variable declaration of __U_MULTI_fopenbsd_cstrncat_alloca_true_valid_memsafety_true_termination_i____fd_mask in openbsd_cstrncat-alloca_true-valid-memsafety_true-termination.i [2018-04-05 16:18:58,866 INFO L230 ultiparseSymbolTable]: Global variable declaration of __U_MULTI_fopenbsd_cstrncat_alloca_true_valid_memsafety_true_termination_i__fsid_t in openbsd_cstrncat-alloca_true-valid-memsafety_true-termination.i [2018-04-05 16:18:58,866 INFO L230 ultiparseSymbolTable]: Global variable declaration of __U_MULTI_fopenbsd_cstrncat_alloca_true_valid_memsafety_true_termination_i__dev_t in openbsd_cstrncat-alloca_true-valid-memsafety_true-termination.i [2018-04-05 16:18:58,866 INFO L230 ultiparseSymbolTable]: Global variable declaration of __U_MULTI_fopenbsd_cstrncat_alloca_true_valid_memsafety_true_termination_i__u_int8_t in openbsd_cstrncat-alloca_true-valid-memsafety_true-termination.i [2018-04-05 16:18:58,866 INFO L230 ultiparseSymbolTable]: Global variable declaration of __U_MULTI_fopenbsd_cstrncat_alloca_true_valid_memsafety_true_termination_i____clock_t in openbsd_cstrncat-alloca_true-valid-memsafety_true-termination.i [2018-04-05 16:18:58,866 INFO L230 ultiparseSymbolTable]: Global variable declaration of __U_MULTI_fopenbsd_cstrncat_alloca_true_valid_memsafety_true_termination_i____blkcnt_t in openbsd_cstrncat-alloca_true-valid-memsafety_true-termination.i [2018-04-05 16:18:58,866 INFO L230 ultiparseSymbolTable]: Global variable declaration of __U_MULTI_fopenbsd_cstrncat_alloca_true_valid_memsafety_true_termination_i__pthread_t in openbsd_cstrncat-alloca_true-valid-memsafety_true-termination.i [2018-04-05 16:18:58,866 INFO L230 ultiparseSymbolTable]: Global variable declaration of __U_MULTI_fopenbsd_cstrncat_alloca_true_valid_memsafety_true_termination_i____sig_atomic_t in openbsd_cstrncat-alloca_true-valid-memsafety_true-termination.i [2018-04-05 16:18:58,867 INFO L230 ultiparseSymbolTable]: Global variable declaration of __U_MULTI_fopenbsd_cstrncat_alloca_true_valid_memsafety_true_termination_i__u_long in openbsd_cstrncat-alloca_true-valid-memsafety_true-termination.i [2018-04-05 16:18:58,868 INFO L230 ultiparseSymbolTable]: Global variable declaration of __U_MULTI_fopenbsd_cstrncat_alloca_true_valid_memsafety_true_termination_i____ino64_t in openbsd_cstrncat-alloca_true-valid-memsafety_true-termination.i [2018-04-05 16:18:58,868 INFO L230 ultiparseSymbolTable]: Global variable declaration of __U_MULTI_fopenbsd_cstrncat_alloca_true_valid_memsafety_true_termination_i____ino_t in openbsd_cstrncat-alloca_true-valid-memsafety_true-termination.i [2018-04-05 16:18:58,868 INFO L230 ultiparseSymbolTable]: Global variable declaration of __U_MULTI_fopenbsd_cstrncat_alloca_true_valid_memsafety_true_termination_i__suseconds_t in openbsd_cstrncat-alloca_true-valid-memsafety_true-termination.i [2018-04-05 16:18:58,868 INFO L230 ultiparseSymbolTable]: Global variable declaration of __U_MULTI_fopenbsd_cstrncat_alloca_true_valid_memsafety_true_termination_i__uint in openbsd_cstrncat-alloca_true-valid-memsafety_true-termination.i [2018-04-05 16:18:58,868 INFO L230 ultiparseSymbolTable]: Global variable declaration of __U_MULTI_fopenbsd_cstrncat_alloca_true_valid_memsafety_true_termination_i____sigset_t in openbsd_cstrncat-alloca_true-valid-memsafety_true-termination.i [2018-04-05 16:18:58,868 INFO L230 ultiparseSymbolTable]: Global variable declaration of __U_MULTI_fopenbsd_cstrncat_alloca_true_valid_memsafety_true_termination_i__clock_t in openbsd_cstrncat-alloca_true-valid-memsafety_true-termination.i [2018-04-05 16:18:58,869 INFO L230 ultiparseSymbolTable]: Global variable declaration of __U_MULTI_fopenbsd_cstrncat_alloca_true_valid_memsafety_true_termination_i__fd_mask in openbsd_cstrncat-alloca_true-valid-memsafety_true-termination.i [2018-04-05 16:18:58,869 INFO L230 ultiparseSymbolTable]: Global variable declaration of __U_MULTI_fopenbsd_cstrncat_alloca_true_valid_memsafety_true_termination_i____uint64_t in openbsd_cstrncat-alloca_true-valid-memsafety_true-termination.i [2018-04-05 16:18:58,869 INFO L230 ultiparseSymbolTable]: Global variable declaration of __U_MULTI_fopenbsd_cstrncat_alloca_true_valid_memsafety_true_termination_i____off_t in openbsd_cstrncat-alloca_true-valid-memsafety_true-termination.i [2018-04-05 16:18:58,869 INFO L230 ultiparseSymbolTable]: Global variable declaration of __U_MULTI_fopenbsd_cstrncat_alloca_true_valid_memsafety_true_termination_i____fsid_t in openbsd_cstrncat-alloca_true-valid-memsafety_true-termination.i [2018-04-05 16:18:58,869 INFO L230 ultiparseSymbolTable]: Global variable declaration of __U_MULTI_fopenbsd_cstrncat_alloca_true_valid_memsafety_true_termination_i__nlink_t in openbsd_cstrncat-alloca_true-valid-memsafety_true-termination.i [2018-04-05 16:18:58,869 INFO L230 ultiparseSymbolTable]: Global variable declaration of __U_MULTI_fopenbsd_cstrncat_alloca_true_valid_memsafety_true_termination_i__pthread_rwlockattr_t in openbsd_cstrncat-alloca_true-valid-memsafety_true-termination.i [2018-04-05 16:18:58,869 INFO L230 ultiparseSymbolTable]: Global variable declaration of __U_MULTI_fopenbsd_cstrncat_alloca_true_valid_memsafety_true_termination_i____fsword_t in openbsd_cstrncat-alloca_true-valid-memsafety_true-termination.i [2018-04-05 16:18:58,869 INFO L230 ultiparseSymbolTable]: Global variable declaration of __U_MULTI_fopenbsd_cstrncat_alloca_true_valid_memsafety_true_termination_i____uid_t in openbsd_cstrncat-alloca_true-valid-memsafety_true-termination.i [2018-04-05 16:18:58,870 INFO L230 ultiparseSymbolTable]: Global variable declaration of __U_MULTI_fopenbsd_cstrncat_alloca_true_valid_memsafety_true_termination_i__ssize_t in openbsd_cstrncat-alloca_true-valid-memsafety_true-termination.i [2018-04-05 16:18:58,870 INFO L230 ultiparseSymbolTable]: Global variable declaration of __U_MULTI_fopenbsd_cstrncat_alloca_true_valid_memsafety_true_termination_i____u_long in openbsd_cstrncat-alloca_true-valid-memsafety_true-termination.i [2018-04-05 16:18:58,870 INFO L230 ultiparseSymbolTable]: Global variable declaration of __U_MULTI_fopenbsd_cstrncat_alloca_true_valid_memsafety_true_termination_i____int16_t in openbsd_cstrncat-alloca_true-valid-memsafety_true-termination.i [2018-04-05 16:18:58,870 INFO L230 ultiparseSymbolTable]: Global variable declaration of __U_MULTI_fopenbsd_cstrncat_alloca_true_valid_memsafety_true_termination_i__u_short in openbsd_cstrncat-alloca_true-valid-memsafety_true-termination.i [2018-04-05 16:18:58,870 INFO L230 ultiparseSymbolTable]: Global variable declaration of __U_MULTI_fopenbsd_cstrncat_alloca_true_valid_memsafety_true_termination_i__u_char in openbsd_cstrncat-alloca_true-valid-memsafety_true-termination.i [2018-04-05 16:18:58,870 INFO L230 ultiparseSymbolTable]: Global variable declaration of __U_MULTI_fopenbsd_cstrncat_alloca_true_valid_memsafety_true_termination_i__off_t in openbsd_cstrncat-alloca_true-valid-memsafety_true-termination.i [2018-04-05 16:18:58,870 INFO L230 ultiparseSymbolTable]: Global variable declaration of __U_MULTI_fopenbsd_cstrncat_alloca_true_valid_memsafety_true_termination_i__timer_t in openbsd_cstrncat-alloca_true-valid-memsafety_true-termination.i [2018-04-05 16:18:58,870 INFO L230 ultiparseSymbolTable]: Global variable declaration of __U_MULTI_fopenbsd_cstrncat_alloca_true_valid_memsafety_true_termination_i____nlink_t in openbsd_cstrncat-alloca_true-valid-memsafety_true-termination.i [2018-04-05 16:18:58,871 INFO L230 ultiparseSymbolTable]: Global variable declaration of __U_MULTI_fopenbsd_cstrncat_alloca_true_valid_memsafety_true_termination_i____pthread_list_t in openbsd_cstrncat-alloca_true-valid-memsafety_true-termination.i [2018-04-05 16:18:58,871 INFO L230 ultiparseSymbolTable]: Global variable declaration of __U_MULTI_fopenbsd_cstrncat_alloca_true_valid_memsafety_true_termination_i__u_int32_t in openbsd_cstrncat-alloca_true-valid-memsafety_true-termination.i [2018-04-05 16:18:58,871 INFO L230 ultiparseSymbolTable]: Global variable declaration of __U_MULTI_fopenbsd_cstrncat_alloca_true_valid_memsafety_true_termination_i__blkcnt_t in openbsd_cstrncat-alloca_true-valid-memsafety_true-termination.i [2018-04-05 16:18:58,871 INFO L230 ultiparseSymbolTable]: Global variable declaration of __U_MULTI_fopenbsd_cstrncat_alloca_true_valid_memsafety_true_termination_i__pthread_once_t in openbsd_cstrncat-alloca_true-valid-memsafety_true-termination.i [2018-04-05 16:18:58,871 INFO L230 ultiparseSymbolTable]: Global variable declaration of __U_MULTI_fopenbsd_cstrncat_alloca_true_valid_memsafety_true_termination_i____intptr_t in openbsd_cstrncat-alloca_true-valid-memsafety_true-termination.i [2018-04-05 16:18:58,871 INFO L230 ultiparseSymbolTable]: Global variable declaration of __U_MULTI_fopenbsd_cstrncat_alloca_true_valid_memsafety_true_termination_i____u_quad_t in openbsd_cstrncat-alloca_true-valid-memsafety_true-termination.i [2018-04-05 16:18:58,871 INFO L230 ultiparseSymbolTable]: Global variable declaration of __U_MULTI_fopenbsd_cstrncat_alloca_true_valid_memsafety_true_termination_i____off64_t in openbsd_cstrncat-alloca_true-valid-memsafety_true-termination.i [2018-04-05 16:18:58,871 INFO L230 ultiparseSymbolTable]: Global variable declaration of __U_MULTI_fopenbsd_cstrncat_alloca_true_valid_memsafety_true_termination_i__pthread_attr_t in openbsd_cstrncat-alloca_true-valid-memsafety_true-termination.i [2018-04-05 16:18:58,872 INFO L230 ultiparseSymbolTable]: Global variable declaration of __U_MULTI_fopenbsd_cstrncat_alloca_true_valid_memsafety_true_termination_i__pthread_barrier_t in openbsd_cstrncat-alloca_true-valid-memsafety_true-termination.i [2018-04-05 16:18:58,872 INFO L230 ultiparseSymbolTable]: Global variable declaration of __U_MULTI_fopenbsd_cstrncat_alloca_true_valid_memsafety_true_termination_i____u_char in openbsd_cstrncat-alloca_true-valid-memsafety_true-termination.i [2018-04-05 16:18:58,872 INFO L230 ultiparseSymbolTable]: Global variable declaration of __U_MULTI_fopenbsd_cstrncat_alloca_true_valid_memsafety_true_termination_i____gid_t in openbsd_cstrncat-alloca_true-valid-memsafety_true-termination.i [2018-04-05 16:18:58,872 INFO L230 ultiparseSymbolTable]: Global variable declaration of __U_MULTI_fopenbsd_cstrncat_alloca_true_valid_memsafety_true_termination_i____timer_t in openbsd_cstrncat-alloca_true-valid-memsafety_true-termination.i [2018-04-05 16:18:58,872 INFO L230 ultiparseSymbolTable]: Global variable declaration of __U_MULTI_fopenbsd_cstrncat_alloca_true_valid_memsafety_true_termination_i__lldiv_t in openbsd_cstrncat-alloca_true-valid-memsafety_true-termination.i [2018-04-05 16:18:58,872 INFO L230 ultiparseSymbolTable]: Global variable declaration of __U_MULTI_fopenbsd_cstrncat_alloca_true_valid_memsafety_true_termination_i____pid_t in openbsd_cstrncat-alloca_true-valid-memsafety_true-termination.i [2018-04-05 16:18:58,872 INFO L230 ultiparseSymbolTable]: Global variable declaration of __U_MULTI_fopenbsd_cstrncat_alloca_true_valid_memsafety_true_termination_i____socklen_t in openbsd_cstrncat-alloca_true-valid-memsafety_true-termination.i [2018-04-05 16:18:58,872 INFO L230 ultiparseSymbolTable]: Global variable declaration of __U_MULTI_fopenbsd_cstrncat_alloca_true_valid_memsafety_true_termination_i__int16_t in openbsd_cstrncat-alloca_true-valid-memsafety_true-termination.i [2018-04-05 16:18:58,872 INFO L230 ultiparseSymbolTable]: Global variable declaration of __U_MULTI_fopenbsd_cstrncat_alloca_true_valid_memsafety_true_termination_i__pthread_mutexattr_t in openbsd_cstrncat-alloca_true-valid-memsafety_true-termination.i [2018-04-05 16:18:58,873 INFO L230 ultiparseSymbolTable]: Global variable declaration of __U_MULTI_fopenbsd_cstrncat_alloca_true_valid_memsafety_true_termination_i____fsblkcnt64_t in openbsd_cstrncat-alloca_true-valid-memsafety_true-termination.i [2018-04-05 16:18:58,885 INFO L230 ultiparseSymbolTable]: Global variable declaration of __U_MULTI_fopenbsd_cstrncat_alloca_true_valid_memsafety_true_termination_i____rlim_t in openbsd_cstrncat-alloca_true-valid-memsafety_true-termination.i [2018-04-05 16:18:58,885 INFO L230 ultiparseSymbolTable]: Global variable declaration of __U_MULTI_fopenbsd_cstrncat_alloca_true_valid_memsafety_true_termination_i__wchar_t in openbsd_cstrncat-alloca_true-valid-memsafety_true-termination.i [2018-04-05 16:18:58,885 INFO L230 ultiparseSymbolTable]: Global variable declaration of __U_MULTI_fopenbsd_cstrncat_alloca_true_valid_memsafety_true_termination_i____quad_t in openbsd_cstrncat-alloca_true-valid-memsafety_true-termination.i [2018-04-05 16:18:58,936 INFO L330 CDTParser]: Deleted temporary CDT project at /storage/ultimate/releaseScripts/default/UAutomizer-linux/data/FLAG230ab4123 [2018-04-05 16:18:58,955 INFO L304 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2018-04-05 16:18:58,958 INFO L131 ToolchainWalker]: Walking toolchain with 4 elements. [2018-04-05 16:18:58,960 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2018-04-05 16:18:58,961 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2018-04-05 16:18:58,980 INFO L276 PluginConnector]: CACSL2BoogieTranslator initialized [2018-04-05 16:18:58,981 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 05.04 04:18:58" (1/1) ... [2018-04-05 16:18:58,985 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@11c1a926 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 05.04 04:18:58, skipping insertion in model container [2018-04-05 16:18:58,985 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 05.04 04:18:58" (1/1) ... [2018-04-05 16:18:59,015 INFO L167 Dispatcher]: Using SV-COMP mode [2018-04-05 16:18:59,111 INFO L167 Dispatcher]: Using SV-COMP mode [2018-04-05 16:18:59,514 INFO L175 PostProcessor]: Settings: Checked method=main [2018-04-05 16:18:59,653 INFO L175 PostProcessor]: Settings: Checked method=main [2018-04-05 16:18:59,674 INFO L100 SccComputation]: Graph consists of 0 InCaSumBalls and 112 non ball SCCs. Number of states in SCCs 112. [2018-04-05 16:18:59,823 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 05.04 04:18:59 WrapperNode [2018-04-05 16:18:59,823 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2018-04-05 16:18:59,824 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2018-04-05 16:18:59,824 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2018-04-05 16:18:59,824 INFO L276 PluginConnector]: Boogie Preprocessor initialized [2018-04-05 16:18:59,861 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 05.04 04:18:59" (1/1) ... [2018-04-05 16:18:59,861 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 05.04 04:18:59" (1/1) ... [2018-04-05 16:18:59,887 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 05.04 04:18:59" (1/1) ... [2018-04-05 16:18:59,887 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 05.04 04:18:59" (1/1) ... [2018-04-05 16:18:59,918 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 05.04 04:18:59" (1/1) ... [2018-04-05 16:18:59,933 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 05.04 04:18:59" (1/1) ... [2018-04-05 16:18:59,937 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 05.04 04:18:59" (1/1) ... [2018-04-05 16:18:59,954 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2018-04-05 16:18:59,954 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2018-04-05 16:18:59,955 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2018-04-05 16:18:59,955 INFO L276 PluginConnector]: RCFGBuilder initialized [2018-04-05 16:18:59,956 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 05.04 04:18:59" (1/1) ... No working directory specified, using /storage/ultimate/releaseScripts/default/UAutomizer-linux/z3 Starting monitored process 1 with z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 1 with z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2018-04-05 16:19:00,344 INFO L136 BoogieDeclarations]: Found implementation of procedure ULTIMATE.init [2018-04-05 16:19:00,345 INFO L136 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2018-04-05 16:19:00,345 INFO L136 BoogieDeclarations]: Found implementation of procedure __U_MULTI_fopenbsd_cstrncat_alloca_true_valid_memsafety_true_termination_i____bswap_32 [2018-04-05 16:19:00,345 INFO L136 BoogieDeclarations]: Found implementation of procedure __U_MULTI_fopenbsd_cstrncat_alloca_true_valid_memsafety_true_termination_i____bswap_64 [2018-04-05 16:19:00,345 INFO L136 BoogieDeclarations]: Found implementation of procedure __U_MULTI_fopenbsd_cstrncat_alloca_true_valid_memsafety_true_termination_i__cstrncat [2018-04-05 16:19:00,345 INFO L136 BoogieDeclarations]: Found implementation of procedure main [2018-04-05 16:19:00,357 INFO L128 BoogieDeclarations]: Found specification of procedure __U_MULTI_fopenbsd_cstrncat_alloca_true_valid_memsafety_true_termination_i____bswap_32 [2018-04-05 16:19:00,357 INFO L128 BoogieDeclarations]: Found specification of procedure __U_MULTI_fopenbsd_cstrncat_alloca_true_valid_memsafety_true_termination_i____bswap_64 [2018-04-05 16:19:00,357 INFO L128 BoogieDeclarations]: Found specification of procedure __ctype_get_mb_cur_max [2018-04-05 16:19:00,358 INFO L128 BoogieDeclarations]: Found specification of procedure atof [2018-04-05 16:19:00,358 INFO L128 BoogieDeclarations]: Found specification of procedure atoi [2018-04-05 16:19:00,358 INFO L128 BoogieDeclarations]: Found specification of procedure atol [2018-04-05 16:19:00,358 INFO L128 BoogieDeclarations]: Found specification of procedure atoll [2018-04-05 16:19:00,358 INFO L128 BoogieDeclarations]: Found specification of procedure strtod [2018-04-05 16:19:00,358 INFO L128 BoogieDeclarations]: Found specification of procedure strtof [2018-04-05 16:19:00,359 INFO L128 BoogieDeclarations]: Found specification of procedure strtold [2018-04-05 16:19:00,359 INFO L128 BoogieDeclarations]: Found specification of procedure strtol [2018-04-05 16:19:00,359 INFO L128 BoogieDeclarations]: Found specification of procedure strtoul [2018-04-05 16:19:00,359 INFO L128 BoogieDeclarations]: Found specification of procedure strtoq [2018-04-05 16:19:00,359 INFO L128 BoogieDeclarations]: Found specification of procedure strtouq [2018-04-05 16:19:00,359 INFO L128 BoogieDeclarations]: Found specification of procedure strtoll [2018-04-05 16:19:00,360 INFO L128 BoogieDeclarations]: Found specification of procedure strtoull [2018-04-05 16:19:00,360 INFO L128 BoogieDeclarations]: Found specification of procedure l64a [2018-04-05 16:19:00,360 INFO L128 BoogieDeclarations]: Found specification of procedure a64l [2018-04-05 16:19:00,360 INFO L128 BoogieDeclarations]: Found specification of procedure select [2018-04-05 16:19:00,360 INFO L128 BoogieDeclarations]: Found specification of procedure pselect [2018-04-05 16:19:00,360 INFO L128 BoogieDeclarations]: Found specification of procedure gnu_dev_major [2018-04-05 16:19:00,360 INFO L128 BoogieDeclarations]: Found specification of procedure gnu_dev_minor [2018-04-05 16:19:00,361 INFO L128 BoogieDeclarations]: Found specification of procedure gnu_dev_makedev [2018-04-05 16:19:00,361 INFO L128 BoogieDeclarations]: Found specification of procedure random [2018-04-05 16:19:00,361 INFO L128 BoogieDeclarations]: Found specification of procedure srandom [2018-04-05 16:19:00,361 INFO L128 BoogieDeclarations]: Found specification of procedure initstate [2018-04-05 16:19:00,361 INFO L128 BoogieDeclarations]: Found specification of procedure setstate [2018-04-05 16:19:00,361 INFO L128 BoogieDeclarations]: Found specification of procedure random_r [2018-04-05 16:19:00,366 INFO L128 BoogieDeclarations]: Found specification of procedure srandom_r [2018-04-05 16:19:00,366 INFO L128 BoogieDeclarations]: Found specification of procedure initstate_r [2018-04-05 16:19:00,366 INFO L128 BoogieDeclarations]: Found specification of procedure setstate_r [2018-04-05 16:19:00,366 INFO L128 BoogieDeclarations]: Found specification of procedure rand [2018-04-05 16:19:00,366 INFO L128 BoogieDeclarations]: Found specification of procedure srand [2018-04-05 16:19:00,366 INFO L128 BoogieDeclarations]: Found specification of procedure rand_r [2018-04-05 16:19:00,366 INFO L128 BoogieDeclarations]: Found specification of procedure drand48 [2018-04-05 16:19:00,366 INFO L128 BoogieDeclarations]: Found specification of procedure erand48 [2018-04-05 16:19:00,367 INFO L128 BoogieDeclarations]: Found specification of procedure lrand48 [2018-04-05 16:19:00,367 INFO L128 BoogieDeclarations]: Found specification of procedure nrand48 [2018-04-05 16:19:00,367 INFO L128 BoogieDeclarations]: Found specification of procedure mrand48 [2018-04-05 16:19:00,367 INFO L128 BoogieDeclarations]: Found specification of procedure jrand48 [2018-04-05 16:19:00,367 INFO L128 BoogieDeclarations]: Found specification of procedure srand48 [2018-04-05 16:19:00,367 INFO L128 BoogieDeclarations]: Found specification of procedure seed48 [2018-04-05 16:19:00,367 INFO L128 BoogieDeclarations]: Found specification of procedure lcong48 [2018-04-05 16:19:00,367 INFO L128 BoogieDeclarations]: Found specification of procedure drand48_r [2018-04-05 16:19:00,368 INFO L128 BoogieDeclarations]: Found specification of procedure erand48_r [2018-04-05 16:19:00,368 INFO L128 BoogieDeclarations]: Found specification of procedure lrand48_r [2018-04-05 16:19:00,368 INFO L128 BoogieDeclarations]: Found specification of procedure nrand48_r [2018-04-05 16:19:00,368 INFO L128 BoogieDeclarations]: Found specification of procedure mrand48_r [2018-04-05 16:19:00,368 INFO L128 BoogieDeclarations]: Found specification of procedure jrand48_r [2018-04-05 16:19:00,368 INFO L128 BoogieDeclarations]: Found specification of procedure srand48_r [2018-04-05 16:19:00,368 INFO L128 BoogieDeclarations]: Found specification of procedure seed48_r [2018-04-05 16:19:00,368 INFO L128 BoogieDeclarations]: Found specification of procedure lcong48_r [2018-04-05 16:19:00,369 INFO L128 BoogieDeclarations]: Found specification of procedure malloc [2018-04-05 16:19:00,383 INFO L128 BoogieDeclarations]: Found specification of procedure calloc [2018-04-05 16:19:00,383 INFO L128 BoogieDeclarations]: Found specification of procedure realloc [2018-04-05 16:19:00,383 INFO L128 BoogieDeclarations]: Found specification of procedure free [2018-04-05 16:19:00,383 INFO L128 BoogieDeclarations]: Found specification of procedure cfree [2018-04-05 16:19:00,384 INFO L128 BoogieDeclarations]: Found specification of procedure alloca [2018-04-05 16:19:00,384 INFO L128 BoogieDeclarations]: Found specification of procedure valloc [2018-04-05 16:19:00,384 INFO L128 BoogieDeclarations]: Found specification of procedure posix_memalign [2018-04-05 16:19:00,384 INFO L128 BoogieDeclarations]: Found specification of procedure abort [2018-04-05 16:19:00,384 INFO L128 BoogieDeclarations]: Found specification of procedure atexit [2018-04-05 16:19:00,384 INFO L128 BoogieDeclarations]: Found specification of procedure on_exit [2018-04-05 16:19:00,384 INFO L128 BoogieDeclarations]: Found specification of procedure exit [2018-04-05 16:19:00,384 INFO L128 BoogieDeclarations]: Found specification of procedure _Exit [2018-04-05 16:19:00,385 INFO L128 BoogieDeclarations]: Found specification of procedure getenv [2018-04-05 16:19:00,385 INFO L128 BoogieDeclarations]: Found specification of procedure putenv [2018-04-05 16:19:00,385 INFO L128 BoogieDeclarations]: Found specification of procedure setenv [2018-04-05 16:19:00,385 INFO L128 BoogieDeclarations]: Found specification of procedure unsetenv [2018-04-05 16:19:00,385 INFO L128 BoogieDeclarations]: Found specification of procedure clearenv [2018-04-05 16:19:00,385 INFO L128 BoogieDeclarations]: Found specification of procedure mktemp [2018-04-05 16:19:00,385 INFO L128 BoogieDeclarations]: Found specification of procedure mkstemp [2018-04-05 16:19:00,385 INFO L128 BoogieDeclarations]: Found specification of procedure mkstemps [2018-04-05 16:19:00,386 INFO L128 BoogieDeclarations]: Found specification of procedure mkdtemp [2018-04-05 16:19:00,386 INFO L128 BoogieDeclarations]: Found specification of procedure system [2018-04-05 16:19:00,386 INFO L128 BoogieDeclarations]: Found specification of procedure realpath [2018-04-05 16:19:00,386 INFO L128 BoogieDeclarations]: Found specification of procedure bsearch [2018-04-05 16:19:00,386 INFO L128 BoogieDeclarations]: Found specification of procedure qsort [2018-04-05 16:19:00,386 INFO L128 BoogieDeclarations]: Found specification of procedure abs [2018-04-05 16:19:00,386 INFO L128 BoogieDeclarations]: Found specification of procedure labs [2018-04-05 16:19:00,387 INFO L128 BoogieDeclarations]: Found specification of procedure llabs [2018-04-05 16:19:00,391 INFO L128 BoogieDeclarations]: Found specification of procedure div [2018-04-05 16:19:00,391 INFO L128 BoogieDeclarations]: Found specification of procedure ldiv [2018-04-05 16:19:00,391 INFO L128 BoogieDeclarations]: Found specification of procedure lldiv [2018-04-05 16:19:00,392 INFO L128 BoogieDeclarations]: Found specification of procedure ecvt [2018-04-05 16:19:00,392 INFO L128 BoogieDeclarations]: Found specification of procedure fcvt [2018-04-05 16:19:00,392 INFO L128 BoogieDeclarations]: Found specification of procedure gcvt [2018-04-05 16:19:00,392 INFO L128 BoogieDeclarations]: Found specification of procedure qecvt [2018-04-05 16:19:00,393 INFO L128 BoogieDeclarations]: Found specification of procedure qfcvt [2018-04-05 16:19:00,393 INFO L128 BoogieDeclarations]: Found specification of procedure qgcvt [2018-04-05 16:19:00,393 INFO L128 BoogieDeclarations]: Found specification of procedure ecvt_r [2018-04-05 16:19:00,393 INFO L128 BoogieDeclarations]: Found specification of procedure fcvt_r [2018-04-05 16:19:00,393 INFO L128 BoogieDeclarations]: Found specification of procedure qecvt_r [2018-04-05 16:19:00,393 INFO L128 BoogieDeclarations]: Found specification of procedure qfcvt_r [2018-04-05 16:19:00,393 INFO L128 BoogieDeclarations]: Found specification of procedure mblen [2018-04-05 16:19:00,393 INFO L128 BoogieDeclarations]: Found specification of procedure mbtowc [2018-04-05 16:19:00,394 INFO L128 BoogieDeclarations]: Found specification of procedure wctomb [2018-04-05 16:19:00,394 INFO L128 BoogieDeclarations]: Found specification of procedure mbstowcs [2018-04-05 16:19:00,394 INFO L128 BoogieDeclarations]: Found specification of procedure wcstombs [2018-04-05 16:19:00,394 INFO L128 BoogieDeclarations]: Found specification of procedure rpmatch [2018-04-05 16:19:00,394 INFO L128 BoogieDeclarations]: Found specification of procedure getsubopt [2018-04-05 16:19:00,394 INFO L128 BoogieDeclarations]: Found specification of procedure getloadavg [2018-04-05 16:19:00,394 INFO L128 BoogieDeclarations]: Found specification of procedure __VERIFIER_nondet_int [2018-04-05 16:19:00,394 INFO L128 BoogieDeclarations]: Found specification of procedure __U_MULTI_fopenbsd_cstrncat_alloca_true_valid_memsafety_true_termination_i__cstrncat [2018-04-05 16:19:00,395 INFO L128 BoogieDeclarations]: Found specification of procedure read~int [2018-04-05 16:19:00,395 INFO L128 BoogieDeclarations]: Found specification of procedure write~int [2018-04-05 16:19:00,395 INFO L128 BoogieDeclarations]: Found specification of procedure main [2018-04-05 16:19:00,395 INFO L128 BoogieDeclarations]: Found specification of procedure #Ultimate.alloc [2018-04-05 16:19:00,395 INFO L128 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2018-04-05 16:19:00,395 INFO L128 BoogieDeclarations]: Found specification of procedure ULTIMATE.init [2018-04-05 16:19:00,395 INFO L128 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2018-04-05 16:19:00,395 INFO L128 BoogieDeclarations]: Found specification of procedure write~unchecked~int [2018-04-05 16:19:01,590 INFO L259 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2018-04-05 16:19:01,608 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 05.04 04:19:01 BoogieIcfgContainer [2018-04-05 16:19:01,609 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2018-04-05 16:19:01,610 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2018-04-05 16:19:01,610 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2018-04-05 16:19:01,616 INFO L276 PluginConnector]: TraceAbstraction initialized [2018-04-05 16:19:01,617 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 05.04 04:18:58" (1/3) ... [2018-04-05 16:19:01,629 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@20452048 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 05.04 04:19:01, skipping insertion in model container [2018-04-05 16:19:01,629 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 05.04 04:18:59" (2/3) ... [2018-04-05 16:19:01,630 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@20452048 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 05.04 04:19:01, skipping insertion in model container [2018-04-05 16:19:01,630 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 05.04 04:19:01" (3/3) ... [2018-04-05 16:19:01,632 INFO L107 eAbstractionObserver]: Analyzing ICFG openbsd_cstrncat-alloca_true-valid-memsafety_true-termination.i [2018-04-05 16:19:01,652 INFO L131 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2018-04-05 16:19:01,668 INFO L143 ceAbstractionStarter]: Appying trace abstraction to program that has 13 error locations. [2018-04-05 16:19:01,818 INFO L128 ementStrategyFactory]: Using default assertion order modulation [2018-04-05 16:19:01,819 INFO L369 AbstractCegarLoop]: Interprodecural is true [2018-04-05 16:19:01,819 INFO L370 AbstractCegarLoop]: Hoare is true [2018-04-05 16:19:01,819 INFO L371 AbstractCegarLoop]: Compute interpolants for FPandBP [2018-04-05 16:19:01,819 INFO L372 AbstractCegarLoop]: Backedges is TWOTRACK [2018-04-05 16:19:01,819 INFO L373 AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2018-04-05 16:19:01,820 INFO L374 AbstractCegarLoop]: Difference is false [2018-04-05 16:19:01,820 INFO L375 AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA [2018-04-05 16:19:01,820 INFO L380 AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == AllErrorsAtOnce======== [2018-04-05 16:19:01,824 INFO L87 2NestedWordAutomaton]: Mode: main mode - execution starts in main procedure [2018-04-05 16:19:01,852 INFO L276 IsEmpty]: Start isEmpty. Operand 89 states. [2018-04-05 16:19:01,861 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 22 [2018-04-05 16:19:01,861 INFO L347 BasicCegarLoop]: Found error trace [2018-04-05 16:19:01,862 INFO L355 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2018-04-05 16:19:01,863 INFO L408 AbstractCegarLoop]: === Iteration 1 === [__U_MULTI_fopenbsd_cstrncat_alloca_true_valid_memsafety_true_termination_i__cstrncatErr3RequiresViolation, __U_MULTI_fopenbsd_cstrncat_alloca_true_valid_memsafety_true_termination_i__cstrncatErr1RequiresViolation, __U_MULTI_fopenbsd_cstrncat_alloca_true_valid_memsafety_true_termination_i__cstrncatErr7RequiresViolation, __U_MULTI_fopenbsd_cstrncat_alloca_true_valid_memsafety_true_termination_i__cstrncatErr2RequiresViolation, __U_MULTI_fopenbsd_cstrncat_alloca_true_valid_memsafety_true_termination_i__cstrncatErr4RequiresViolation, __U_MULTI_fopenbsd_cstrncat_alloca_true_valid_memsafety_true_termination_i__cstrncatErr0RequiresViolation, __U_MULTI_fopenbsd_cstrncat_alloca_true_valid_memsafety_true_termination_i__cstrncatErr6RequiresViolation, __U_MULTI_fopenbsd_cstrncat_alloca_true_valid_memsafety_true_termination_i__cstrncatErr5RequiresViolation, mainErr3RequiresViolation, mainErr1RequiresViolation, mainErr2RequiresViolation, mainErr4EnsuresViolationMEMORY_LEAK, mainErr0RequiresViolation]=== [2018-04-05 16:19:01,871 INFO L82 PathProgramCache]: Analyzing trace with hash 44265951, now seen corresponding path program 1 times No working directory specified, using /storage/ultimate/releaseScripts/default/UAutomizer-linux/z3 Starting monitored process 2 with z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 2 with z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2018-04-05 16:19:01,956 INFO L68 tionRefinementEngine]: Using refinement strategy FixedRefinementStrategy [2018-04-05 16:19:02,061 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-04-05 16:19:02,101 INFO L270 TraceCheckSpWp]: Computing forward predicates... [2018-04-05 16:19:02,205 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-04-05 16:19:02,206 INFO L314 TraceCheckSpWp]: Computing backward predicates... [2018-04-05 16:19:02,275 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-04-05 16:19:02,389 INFO L320 seRefinementStrategy]: Constructing automaton from 2 perfect and 0 imperfect interpolant sequences. [2018-04-05 16:19:02,389 INFO L335 seRefinementStrategy]: Number of different interpolants: perfect sequences [2, 2] imperfect sequences [] total 2 [2018-04-05 16:19:02,397 INFO L442 AbstractCegarLoop]: Interpolant automaton has 3 states [2018-04-05 16:19:02,432 INFO L132 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2018-04-05 16:19:02,433 INFO L133 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2018-04-05 16:19:02,441 INFO L87 Difference]: Start difference. First operand 89 states. Second operand 3 states. [2018-04-05 16:19:02,746 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-04-05 16:19:02,746 INFO L93 Difference]: Finished difference Result 129 states and 141 transitions. [2018-04-05 16:19:02,748 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2018-04-05 16:19:02,749 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 21 [2018-04-05 16:19:02,750 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-04-05 16:19:02,787 INFO L225 Difference]: With dead ends: 129 [2018-04-05 16:19:02,787 INFO L226 Difference]: Without dead ends: 85 [2018-04-05 16:19:02,797 INFO L567 BasicCegarLoop]: 0 DeclaredPredicates, 41 GetRequests, 40 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2018-04-05 16:19:02,849 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 85 states. [2018-04-05 16:19:02,916 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 85 to 85. [2018-04-05 16:19:02,919 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 85 states. [2018-04-05 16:19:02,926 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 85 states to 85 states and 91 transitions. [2018-04-05 16:19:02,930 INFO L78 Accepts]: Start accepts. Automaton has 85 states and 91 transitions. Word has length 21 [2018-04-05 16:19:02,931 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-04-05 16:19:02,931 INFO L459 AbstractCegarLoop]: Abstraction has 85 states and 91 transitions. [2018-04-05 16:19:02,931 INFO L460 AbstractCegarLoop]: Interpolant automaton has 3 states. [2018-04-05 16:19:02,932 INFO L276 IsEmpty]: Start isEmpty. Operand 85 states and 91 transitions. [2018-04-05 16:19:02,932 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 25 [2018-04-05 16:19:02,933 INFO L347 BasicCegarLoop]: Found error trace [2018-04-05 16:19:02,933 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] [2018-04-05 16:19:02,933 INFO L408 AbstractCegarLoop]: === Iteration 2 === [__U_MULTI_fopenbsd_cstrncat_alloca_true_valid_memsafety_true_termination_i__cstrncatErr3RequiresViolation, __U_MULTI_fopenbsd_cstrncat_alloca_true_valid_memsafety_true_termination_i__cstrncatErr1RequiresViolation, __U_MULTI_fopenbsd_cstrncat_alloca_true_valid_memsafety_true_termination_i__cstrncatErr7RequiresViolation, __U_MULTI_fopenbsd_cstrncat_alloca_true_valid_memsafety_true_termination_i__cstrncatErr2RequiresViolation, __U_MULTI_fopenbsd_cstrncat_alloca_true_valid_memsafety_true_termination_i__cstrncatErr4RequiresViolation, __U_MULTI_fopenbsd_cstrncat_alloca_true_valid_memsafety_true_termination_i__cstrncatErr0RequiresViolation, __U_MULTI_fopenbsd_cstrncat_alloca_true_valid_memsafety_true_termination_i__cstrncatErr6RequiresViolation, __U_MULTI_fopenbsd_cstrncat_alloca_true_valid_memsafety_true_termination_i__cstrncatErr5RequiresViolation, mainErr3RequiresViolation, mainErr1RequiresViolation, mainErr2RequiresViolation, mainErr4EnsuresViolationMEMORY_LEAK, mainErr0RequiresViolation]=== [2018-04-05 16:19:02,934 INFO L82 PathProgramCache]: Analyzing trace with hash 230705453, now seen corresponding path program 1 times No working directory specified, using /storage/ultimate/releaseScripts/default/UAutomizer-linux/z3 Starting monitored process 3 with z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 3 with z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2018-04-05 16:19:02,968 INFO L68 tionRefinementEngine]: Using refinement strategy FixedRefinementStrategy [2018-04-05 16:19:03,043 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-04-05 16:19:03,045 INFO L270 TraceCheckSpWp]: Computing forward predicates... [2018-04-05 16:19:03,101 INFO L477 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 6 treesize of output 5 [2018-04-05 16:19:03,106 INFO L267 ElimStorePlain]: Start of recursive call 2: End of recursive call: and 1 xjuncts. [2018-04-05 16:19:03,116 INFO L267 ElimStorePlain]: Start of recursive call 1: 1 dim-1 vars, End of recursive call: and 1 xjuncts. [2018-04-05 16:19:03,117 INFO L202 ElimStorePlain]: Needed 2 recursive calls to eliminate 1 variables, input treesize:6, output treesize:5 [2018-04-05 16:19:03,203 INFO L477 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 12 treesize of output 11 [2018-04-05 16:19:03,204 INFO L267 ElimStorePlain]: Start of recursive call 2: End of recursive call: and 1 xjuncts. [2018-04-05 16:19:03,240 INFO L267 ElimStorePlain]: Start of recursive call 1: 1 dim-0 vars, 1 dim-1 vars, End of recursive call: 1 dim-0 vars, and 1 xjuncts. [2018-04-05 16:19:03,240 INFO L202 ElimStorePlain]: Needed 2 recursive calls to eliminate 2 variables, input treesize:12, output treesize:11 [2018-04-05 16:19:03,284 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-04-05 16:19:03,284 INFO L314 TraceCheckSpWp]: Computing backward predicates... [2018-04-05 16:19:03,346 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-04-05 16:19:03,435 INFO L320 seRefinementStrategy]: Constructing automaton from 2 perfect and 0 imperfect interpolant sequences. [2018-04-05 16:19:03,435 INFO L335 seRefinementStrategy]: Number of different interpolants: perfect sequences [3, 3] imperfect sequences [] total 3 [2018-04-05 16:19:03,437 INFO L442 AbstractCegarLoop]: Interpolant automaton has 4 states [2018-04-05 16:19:03,438 INFO L132 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2018-04-05 16:19:03,438 INFO L133 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2018-04-05 16:19:03,438 INFO L87 Difference]: Start difference. First operand 85 states and 91 transitions. Second operand 4 states. [2018-04-05 16:19:03,814 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-04-05 16:19:03,814 INFO L93 Difference]: Finished difference Result 85 states and 91 transitions. [2018-04-05 16:19:03,815 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2018-04-05 16:19:03,816 INFO L78 Accepts]: Start accepts. Automaton has 4 states. Word has length 24 [2018-04-05 16:19:03,816 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-04-05 16:19:03,817 INFO L225 Difference]: With dead ends: 85 [2018-04-05 16:19:03,818 INFO L226 Difference]: Without dead ends: 84 [2018-04-05 16:19:03,819 INFO L567 BasicCegarLoop]: 0 DeclaredPredicates, 48 GetRequests, 43 SyntacticMatches, 2 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2018-04-05 16:19:03,821 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 84 states. [2018-04-05 16:19:03,833 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 84 to 84. [2018-04-05 16:19:03,833 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 84 states. [2018-04-05 16:19:03,835 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 84 states to 84 states and 90 transitions. [2018-04-05 16:19:03,836 INFO L78 Accepts]: Start accepts. Automaton has 84 states and 90 transitions. Word has length 24 [2018-04-05 16:19:03,842 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-04-05 16:19:03,842 INFO L459 AbstractCegarLoop]: Abstraction has 84 states and 90 transitions. [2018-04-05 16:19:03,843 INFO L460 AbstractCegarLoop]: Interpolant automaton has 4 states. [2018-04-05 16:19:03,843 INFO L276 IsEmpty]: Start isEmpty. Operand 84 states and 90 transitions. [2018-04-05 16:19:03,844 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 25 [2018-04-05 16:19:03,844 INFO L347 BasicCegarLoop]: Found error trace [2018-04-05 16:19:03,844 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] [2018-04-05 16:19:03,844 INFO L408 AbstractCegarLoop]: === Iteration 3 === [__U_MULTI_fopenbsd_cstrncat_alloca_true_valid_memsafety_true_termination_i__cstrncatErr3RequiresViolation, __U_MULTI_fopenbsd_cstrncat_alloca_true_valid_memsafety_true_termination_i__cstrncatErr1RequiresViolation, __U_MULTI_fopenbsd_cstrncat_alloca_true_valid_memsafety_true_termination_i__cstrncatErr7RequiresViolation, __U_MULTI_fopenbsd_cstrncat_alloca_true_valid_memsafety_true_termination_i__cstrncatErr2RequiresViolation, __U_MULTI_fopenbsd_cstrncat_alloca_true_valid_memsafety_true_termination_i__cstrncatErr4RequiresViolation, __U_MULTI_fopenbsd_cstrncat_alloca_true_valid_memsafety_true_termination_i__cstrncatErr0RequiresViolation, __U_MULTI_fopenbsd_cstrncat_alloca_true_valid_memsafety_true_termination_i__cstrncatErr6RequiresViolation, __U_MULTI_fopenbsd_cstrncat_alloca_true_valid_memsafety_true_termination_i__cstrncatErr5RequiresViolation, mainErr3RequiresViolation, mainErr1RequiresViolation, mainErr2RequiresViolation, mainErr4EnsuresViolationMEMORY_LEAK, mainErr0RequiresViolation]=== [2018-04-05 16:19:03,844 INFO L82 PathProgramCache]: Analyzing trace with hash 230705454, now seen corresponding path program 1 times No working directory specified, using /storage/ultimate/releaseScripts/default/UAutomizer-linux/z3 Starting monitored process 4 with z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 4 with z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2018-04-05 16:19:03,882 INFO L68 tionRefinementEngine]: Using refinement strategy FixedRefinementStrategy [2018-04-05 16:19:03,930 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-04-05 16:19:03,933 INFO L270 TraceCheckSpWp]: Computing forward predicates... [2018-04-05 16:19:04,146 INFO L477 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 6 treesize of output 5 [2018-04-05 16:19:04,146 INFO L267 ElimStorePlain]: Start of recursive call 2: End of recursive call: and 1 xjuncts. [2018-04-05 16:19:04,308 INFO L477 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 6 treesize of output 5 [2018-04-05 16:19:04,308 INFO L267 ElimStorePlain]: Start of recursive call 3: End of recursive call: and 1 xjuncts. [2018-04-05 16:19:04,378 INFO L267 ElimStorePlain]: Start of recursive call 1: 2 dim-1 vars, End of recursive call: and 1 xjuncts. [2018-04-05 16:19:04,378 INFO L202 ElimStorePlain]: Needed 3 recursive calls to eliminate 2 variables, input treesize:27, output treesize:25 [2018-04-05 16:19:04,685 WARN L148 SmtUtils]: Spent 121ms on a formula simplification that was a NOOP. DAG size: 19 [2018-04-05 16:19:04,789 INFO L700 Elim1Store]: detected not equals via solver [2018-04-05 16:19:04,806 INFO L700 Elim1Store]: detected not equals via solver [2018-04-05 16:19:04,807 INFO L477 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 1 select indices, 1 select index equivalence classes, 2 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 12 treesize of output 21 [2018-04-05 16:19:04,808 INFO L267 ElimStorePlain]: Start of recursive call 2: End of recursive call: and 1 xjuncts. [2018-04-05 16:19:05,488 INFO L700 Elim1Store]: detected not equals via solver [2018-04-05 16:19:05,494 INFO L700 Elim1Store]: detected not equals via solver [2018-04-05 16:19:05,495 INFO L477 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 2 select indices, 2 select index equivalence classes, 2 disjoint index pairs (out of 1 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 11 treesize of output 4 [2018-04-05 16:19:05,496 INFO L267 ElimStorePlain]: Start of recursive call 3: End of recursive call: and 1 xjuncts. [2018-04-05 16:19:05,571 INFO L267 ElimStorePlain]: Start of recursive call 1: 2 dim-0 vars, 2 dim-1 vars, End of recursive call: 1 dim-0 vars, and 1 xjuncts. [2018-04-05 16:19:05,572 INFO L202 ElimStorePlain]: Needed 3 recursive calls to eliminate 4 variables, input treesize:36, output treesize:24 [2018-04-05 16:19:05,684 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-04-05 16:19:05,690 INFO L314 TraceCheckSpWp]: Computing backward predicates... [2018-04-05 16:19:06,205 INFO L477 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 1 select indices, 1 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 23 treesize of output 17 [2018-04-05 16:19:06,206 INFO L267 ElimStorePlain]: Start of recursive call 2: End of recursive call: and 1 xjuncts. [2018-04-05 16:19:06,278 INFO L477 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 0 select indices, 0 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 17 treesize of output 20 [2018-04-05 16:19:06,384 INFO L477 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 1 select indices, 1 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 14 treesize of output 3 [2018-04-05 16:19:06,384 INFO L267 ElimStorePlain]: Start of recursive call 4: End of recursive call: and 1 xjuncts. [2018-04-05 16:19:06,406 INFO L267 ElimStorePlain]: Start of recursive call 3: 1 dim-1 vars, End of recursive call: and 1 xjuncts. [2018-04-05 16:19:06,449 INFO L267 ElimStorePlain]: Start of recursive call 1: 2 dim-0 vars, 2 dim-1 vars, End of recursive call: and 2 xjuncts. [2018-04-05 16:19:06,449 INFO L202 ElimStorePlain]: Needed 4 recursive calls to eliminate 4 variables, input treesize:29, output treesize:9 [2018-04-05 16:19:06,734 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-04-05 16:19:06,792 INFO L320 seRefinementStrategy]: Constructing automaton from 2 perfect and 0 imperfect interpolant sequences. [2018-04-05 16:19:06,792 INFO L335 seRefinementStrategy]: Number of different interpolants: perfect sequences [7, 7] imperfect sequences [] total 12 [2018-04-05 16:19:06,793 INFO L442 AbstractCegarLoop]: Interpolant automaton has 13 states [2018-04-05 16:19:06,793 INFO L132 InterpolantAutomaton]: Constructing interpolant automaton starting with 13 interpolants. [2018-04-05 16:19:06,793 INFO L133 InterpolantAutomaton]: CoverageRelationStatistics Valid=45, Invalid=111, Unknown=0, NotChecked=0, Total=156 [2018-04-05 16:19:06,794 INFO L87 Difference]: Start difference. First operand 84 states and 90 transitions. Second operand 13 states. [2018-04-05 16:19:07,519 WARN L148 SmtUtils]: Spent 149ms on a formula simplification that was a NOOP. DAG size: 26 [2018-04-05 16:19:07,975 WARN L148 SmtUtils]: Spent 402ms on a formula simplification that was a NOOP. DAG size: 33 [2018-04-05 16:19:08,450 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-04-05 16:19:08,451 INFO L93 Difference]: Finished difference Result 84 states and 90 transitions. [2018-04-05 16:19:08,452 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2018-04-05 16:19:08,452 INFO L78 Accepts]: Start accepts. Automaton has 13 states. Word has length 24 [2018-04-05 16:19:08,453 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-04-05 16:19:08,454 INFO L225 Difference]: With dead ends: 84 [2018-04-05 16:19:08,454 INFO L226 Difference]: Without dead ends: 83 [2018-04-05 16:19:08,455 INFO L567 BasicCegarLoop]: 0 DeclaredPredicates, 50 GetRequests, 35 SyntacticMatches, 1 SemanticMatches, 14 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 40 ImplicationChecksByTransitivity, 1.9s TimeCoverageRelationStatistics Valid=81, Invalid=159, Unknown=0, NotChecked=0, Total=240 [2018-04-05 16:19:08,455 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 83 states. [2018-04-05 16:19:08,466 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 83 to 83. [2018-04-05 16:19:08,466 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 83 states. [2018-04-05 16:19:08,474 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 83 states to 83 states and 89 transitions. [2018-04-05 16:19:08,474 INFO L78 Accepts]: Start accepts. Automaton has 83 states and 89 transitions. Word has length 24 [2018-04-05 16:19:08,477 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-04-05 16:19:08,477 INFO L459 AbstractCegarLoop]: Abstraction has 83 states and 89 transitions. [2018-04-05 16:19:08,477 INFO L460 AbstractCegarLoop]: Interpolant automaton has 13 states. [2018-04-05 16:19:08,478 INFO L276 IsEmpty]: Start isEmpty. Operand 83 states and 89 transitions. [2018-04-05 16:19:08,478 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 26 [2018-04-05 16:19:08,478 INFO L347 BasicCegarLoop]: Found error trace [2018-04-05 16:19:08,479 INFO L355 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2018-04-05 16:19:08,479 INFO L408 AbstractCegarLoop]: === Iteration 4 === [__U_MULTI_fopenbsd_cstrncat_alloca_true_valid_memsafety_true_termination_i__cstrncatErr3RequiresViolation, __U_MULTI_fopenbsd_cstrncat_alloca_true_valid_memsafety_true_termination_i__cstrncatErr1RequiresViolation, __U_MULTI_fopenbsd_cstrncat_alloca_true_valid_memsafety_true_termination_i__cstrncatErr7RequiresViolation, __U_MULTI_fopenbsd_cstrncat_alloca_true_valid_memsafety_true_termination_i__cstrncatErr2RequiresViolation, __U_MULTI_fopenbsd_cstrncat_alloca_true_valid_memsafety_true_termination_i__cstrncatErr4RequiresViolation, __U_MULTI_fopenbsd_cstrncat_alloca_true_valid_memsafety_true_termination_i__cstrncatErr0RequiresViolation, __U_MULTI_fopenbsd_cstrncat_alloca_true_valid_memsafety_true_termination_i__cstrncatErr6RequiresViolation, __U_MULTI_fopenbsd_cstrncat_alloca_true_valid_memsafety_true_termination_i__cstrncatErr5RequiresViolation, mainErr3RequiresViolation, mainErr1RequiresViolation, mainErr2RequiresViolation, mainErr4EnsuresViolationMEMORY_LEAK, mainErr0RequiresViolation]=== [2018-04-05 16:19:08,479 INFO L82 PathProgramCache]: Analyzing trace with hash -1438065452, now seen corresponding path program 1 times No working directory specified, using /storage/ultimate/releaseScripts/default/UAutomizer-linux/z3 Starting monitored process 5 with z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 5 with z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2018-04-05 16:19:08,530 INFO L68 tionRefinementEngine]: Using refinement strategy FixedRefinementStrategy [2018-04-05 16:19:08,615 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-04-05 16:19:08,625 INFO L270 TraceCheckSpWp]: Computing forward predicates... [2018-04-05 16:19:08,663 INFO L477 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 6 treesize of output 5 [2018-04-05 16:19:08,663 INFO L267 ElimStorePlain]: Start of recursive call 2: End of recursive call: and 1 xjuncts. [2018-04-05 16:19:08,702 INFO L267 ElimStorePlain]: Start of recursive call 1: 1 dim-1 vars, End of recursive call: and 1 xjuncts. [2018-04-05 16:19:08,703 INFO L202 ElimStorePlain]: Needed 2 recursive calls to eliminate 1 variables, input treesize:13, output treesize:12 [2018-04-05 16:19:08,787 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-04-05 16:19:08,788 INFO L314 TraceCheckSpWp]: Computing backward predicates... [2018-04-05 16:19:08,943 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-04-05 16:19:08,980 INFO L320 seRefinementStrategy]: Constructing automaton from 2 perfect and 0 imperfect interpolant sequences. [2018-04-05 16:19:08,980 INFO L335 seRefinementStrategy]: Number of different interpolants: perfect sequences [4, 4] imperfect sequences [] total 6 [2018-04-05 16:19:08,980 INFO L442 AbstractCegarLoop]: Interpolant automaton has 7 states [2018-04-05 16:19:08,981 INFO L132 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2018-04-05 16:19:08,982 INFO L133 InterpolantAutomaton]: CoverageRelationStatistics Valid=15, Invalid=27, Unknown=0, NotChecked=0, Total=42 [2018-04-05 16:19:08,983 INFO L87 Difference]: Start difference. First operand 83 states and 89 transitions. Second operand 7 states. [2018-04-05 16:19:09,444 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-04-05 16:19:09,444 INFO L93 Difference]: Finished difference Result 83 states and 89 transitions. [2018-04-05 16:19:09,447 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2018-04-05 16:19:09,447 INFO L78 Accepts]: Start accepts. Automaton has 7 states. Word has length 25 [2018-04-05 16:19:09,448 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-04-05 16:19:09,449 INFO L225 Difference]: With dead ends: 83 [2018-04-05 16:19:09,449 INFO L226 Difference]: Without dead ends: 82 [2018-04-05 16:19:09,449 INFO L567 BasicCegarLoop]: 0 DeclaredPredicates, 50 GetRequests, 44 SyntacticMatches, 0 SemanticMatches, 6 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 5 ImplicationChecksByTransitivity, 0.3s TimeCoverageRelationStatistics Valid=22, Invalid=34, Unknown=0, NotChecked=0, Total=56 [2018-04-05 16:19:09,450 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 82 states. [2018-04-05 16:19:09,470 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 82 to 82. [2018-04-05 16:19:09,470 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 82 states. [2018-04-05 16:19:09,480 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 82 states to 82 states and 88 transitions. [2018-04-05 16:19:09,480 INFO L78 Accepts]: Start accepts. Automaton has 82 states and 88 transitions. Word has length 25 [2018-04-05 16:19:09,480 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-04-05 16:19:09,480 INFO L459 AbstractCegarLoop]: Abstraction has 82 states and 88 transitions. [2018-04-05 16:19:09,480 INFO L460 AbstractCegarLoop]: Interpolant automaton has 7 states. [2018-04-05 16:19:09,481 INFO L276 IsEmpty]: Start isEmpty. Operand 82 states and 88 transitions. [2018-04-05 16:19:09,486 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 26 [2018-04-05 16:19:09,486 INFO L347 BasicCegarLoop]: Found error trace [2018-04-05 16:19:09,487 INFO L355 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2018-04-05 16:19:09,487 INFO L408 AbstractCegarLoop]: === Iteration 5 === [__U_MULTI_fopenbsd_cstrncat_alloca_true_valid_memsafety_true_termination_i__cstrncatErr3RequiresViolation, __U_MULTI_fopenbsd_cstrncat_alloca_true_valid_memsafety_true_termination_i__cstrncatErr1RequiresViolation, __U_MULTI_fopenbsd_cstrncat_alloca_true_valid_memsafety_true_termination_i__cstrncatErr7RequiresViolation, __U_MULTI_fopenbsd_cstrncat_alloca_true_valid_memsafety_true_termination_i__cstrncatErr2RequiresViolation, __U_MULTI_fopenbsd_cstrncat_alloca_true_valid_memsafety_true_termination_i__cstrncatErr4RequiresViolation, __U_MULTI_fopenbsd_cstrncat_alloca_true_valid_memsafety_true_termination_i__cstrncatErr0RequiresViolation, __U_MULTI_fopenbsd_cstrncat_alloca_true_valid_memsafety_true_termination_i__cstrncatErr6RequiresViolation, __U_MULTI_fopenbsd_cstrncat_alloca_true_valid_memsafety_true_termination_i__cstrncatErr5RequiresViolation, mainErr3RequiresViolation, mainErr1RequiresViolation, mainErr2RequiresViolation, mainErr4EnsuresViolationMEMORY_LEAK, mainErr0RequiresViolation]=== [2018-04-05 16:19:09,487 INFO L82 PathProgramCache]: Analyzing trace with hash -1438065453, now seen corresponding path program 1 times No working directory specified, using /storage/ultimate/releaseScripts/default/UAutomizer-linux/z3 Starting monitored process 6 with z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 6 with z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2018-04-05 16:19:09,510 INFO L68 tionRefinementEngine]: Using refinement strategy FixedRefinementStrategy [2018-04-05 16:19:09,541 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-04-05 16:19:09,544 INFO L270 TraceCheckSpWp]: Computing forward predicates... [2018-04-05 16:19:09,560 INFO L477 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 6 treesize of output 5 [2018-04-05 16:19:09,561 INFO L267 ElimStorePlain]: Start of recursive call 2: End of recursive call: and 1 xjuncts. [2018-04-05 16:19:09,570 INFO L267 ElimStorePlain]: Start of recursive call 1: 1 dim-1 vars, End of recursive call: and 1 xjuncts. [2018-04-05 16:19:09,571 INFO L202 ElimStorePlain]: Needed 2 recursive calls to eliminate 1 variables, input treesize:6, output treesize:5 [2018-04-05 16:19:09,632 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-04-05 16:19:09,633 INFO L314 TraceCheckSpWp]: Computing backward predicates... [2018-04-05 16:19:09,657 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-04-05 16:19:09,741 INFO L320 seRefinementStrategy]: Constructing automaton from 2 perfect and 0 imperfect interpolant sequences. [2018-04-05 16:19:09,775 INFO L335 seRefinementStrategy]: Number of different interpolants: perfect sequences [3, 3] imperfect sequences [] total 3 [2018-04-05 16:19:09,775 INFO L442 AbstractCegarLoop]: Interpolant automaton has 4 states [2018-04-05 16:19:09,776 INFO L132 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2018-04-05 16:19:09,776 INFO L133 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2018-04-05 16:19:09,776 INFO L87 Difference]: Start difference. First operand 82 states and 88 transitions. Second operand 4 states. [2018-04-05 16:19:10,087 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-04-05 16:19:10,088 INFO L93 Difference]: Finished difference Result 82 states and 88 transitions. [2018-04-05 16:19:10,088 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2018-04-05 16:19:10,088 INFO L78 Accepts]: Start accepts. Automaton has 4 states. Word has length 25 [2018-04-05 16:19:10,089 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-04-05 16:19:10,090 INFO L225 Difference]: With dead ends: 82 [2018-04-05 16:19:10,090 INFO L226 Difference]: Without dead ends: 81 [2018-04-05 16:19:10,090 INFO L567 BasicCegarLoop]: 0 DeclaredPredicates, 50 GetRequests, 47 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2018-04-05 16:19:10,091 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 81 states. [2018-04-05 16:19:10,101 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 81 to 81. [2018-04-05 16:19:10,101 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 81 states. [2018-04-05 16:19:10,103 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 81 states to 81 states and 87 transitions. [2018-04-05 16:19:10,103 INFO L78 Accepts]: Start accepts. Automaton has 81 states and 87 transitions. Word has length 25 [2018-04-05 16:19:10,103 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-04-05 16:19:10,103 INFO L459 AbstractCegarLoop]: Abstraction has 81 states and 87 transitions. [2018-04-05 16:19:10,104 INFO L460 AbstractCegarLoop]: Interpolant automaton has 4 states. [2018-04-05 16:19:10,104 INFO L276 IsEmpty]: Start isEmpty. Operand 81 states and 87 transitions. [2018-04-05 16:19:10,105 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 35 [2018-04-05 16:19:10,105 INFO L347 BasicCegarLoop]: Found error trace [2018-04-05 16:19:10,105 INFO L355 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2018-04-05 16:19:10,105 INFO L408 AbstractCegarLoop]: === Iteration 6 === [__U_MULTI_fopenbsd_cstrncat_alloca_true_valid_memsafety_true_termination_i__cstrncatErr3RequiresViolation, __U_MULTI_fopenbsd_cstrncat_alloca_true_valid_memsafety_true_termination_i__cstrncatErr1RequiresViolation, __U_MULTI_fopenbsd_cstrncat_alloca_true_valid_memsafety_true_termination_i__cstrncatErr7RequiresViolation, __U_MULTI_fopenbsd_cstrncat_alloca_true_valid_memsafety_true_termination_i__cstrncatErr2RequiresViolation, __U_MULTI_fopenbsd_cstrncat_alloca_true_valid_memsafety_true_termination_i__cstrncatErr4RequiresViolation, __U_MULTI_fopenbsd_cstrncat_alloca_true_valid_memsafety_true_termination_i__cstrncatErr0RequiresViolation, __U_MULTI_fopenbsd_cstrncat_alloca_true_valid_memsafety_true_termination_i__cstrncatErr6RequiresViolation, __U_MULTI_fopenbsd_cstrncat_alloca_true_valid_memsafety_true_termination_i__cstrncatErr5RequiresViolation, mainErr3RequiresViolation, mainErr1RequiresViolation, mainErr2RequiresViolation, mainErr4EnsuresViolationMEMORY_LEAK, mainErr0RequiresViolation]=== [2018-04-05 16:19:10,106 INFO L82 PathProgramCache]: Analyzing trace with hash -1704017821, now seen corresponding path program 1 times No working directory specified, using /storage/ultimate/releaseScripts/default/UAutomizer-linux/z3 Starting monitored process 7 with z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 7 with z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2018-04-05 16:19:10,155 INFO L68 tionRefinementEngine]: Using refinement strategy FixedRefinementStrategy [2018-04-05 16:19:10,234 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-04-05 16:19:10,237 INFO L270 TraceCheckSpWp]: Computing forward predicates... [2018-04-05 16:19:10,390 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-04-05 16:19:10,390 INFO L314 TraceCheckSpWp]: Computing backward predicates... [2018-04-05 16:19:10,422 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-04-05 16:19:10,479 INFO L320 seRefinementStrategy]: Constructing automaton from 2 perfect and 0 imperfect interpolant sequences. [2018-04-05 16:19:10,479 INFO L335 seRefinementStrategy]: Number of different interpolants: perfect sequences [5, 5] imperfect sequences [] total 5 [2018-04-05 16:19:10,480 INFO L442 AbstractCegarLoop]: Interpolant automaton has 6 states [2018-04-05 16:19:10,480 INFO L132 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2018-04-05 16:19:10,480 INFO L133 InterpolantAutomaton]: CoverageRelationStatistics Valid=9, Invalid=21, Unknown=0, NotChecked=0, Total=30 [2018-04-05 16:19:10,480 INFO L87 Difference]: Start difference. First operand 81 states and 87 transitions. Second operand 6 states. [2018-04-05 16:19:11,037 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-04-05 16:19:11,037 INFO L93 Difference]: Finished difference Result 100 states and 106 transitions. [2018-04-05 16:19:11,038 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2018-04-05 16:19:11,038 INFO L78 Accepts]: Start accepts. Automaton has 6 states. Word has length 34 [2018-04-05 16:19:11,038 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-04-05 16:19:11,045 INFO L225 Difference]: With dead ends: 100 [2018-04-05 16:19:11,046 INFO L226 Difference]: Without dead ends: 97 [2018-04-05 16:19:11,046 INFO L567 BasicCegarLoop]: 0 DeclaredPredicates, 69 GetRequests, 63 SyntacticMatches, 0 SemanticMatches, 6 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=19, Invalid=37, Unknown=0, NotChecked=0, Total=56 [2018-04-05 16:19:11,047 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 97 states. [2018-04-05 16:19:11,093 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 97 to 89. [2018-04-05 16:19:11,094 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 89 states. [2018-04-05 16:19:11,100 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 89 states to 89 states and 100 transitions. [2018-04-05 16:19:11,104 INFO L78 Accepts]: Start accepts. Automaton has 89 states and 100 transitions. Word has length 34 [2018-04-05 16:19:11,104 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-04-05 16:19:11,105 INFO L459 AbstractCegarLoop]: Abstraction has 89 states and 100 transitions. [2018-04-05 16:19:11,109 INFO L460 AbstractCegarLoop]: Interpolant automaton has 6 states. [2018-04-05 16:19:11,109 INFO L276 IsEmpty]: Start isEmpty. Operand 89 states and 100 transitions. [2018-04-05 16:19:11,110 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 35 [2018-04-05 16:19:11,110 INFO L347 BasicCegarLoop]: Found error trace [2018-04-05 16:19:11,110 INFO L355 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2018-04-05 16:19:11,110 INFO L408 AbstractCegarLoop]: === Iteration 7 === [__U_MULTI_fopenbsd_cstrncat_alloca_true_valid_memsafety_true_termination_i__cstrncatErr3RequiresViolation, __U_MULTI_fopenbsd_cstrncat_alloca_true_valid_memsafety_true_termination_i__cstrncatErr1RequiresViolation, __U_MULTI_fopenbsd_cstrncat_alloca_true_valid_memsafety_true_termination_i__cstrncatErr7RequiresViolation, __U_MULTI_fopenbsd_cstrncat_alloca_true_valid_memsafety_true_termination_i__cstrncatErr2RequiresViolation, __U_MULTI_fopenbsd_cstrncat_alloca_true_valid_memsafety_true_termination_i__cstrncatErr4RequiresViolation, __U_MULTI_fopenbsd_cstrncat_alloca_true_valid_memsafety_true_termination_i__cstrncatErr0RequiresViolation, __U_MULTI_fopenbsd_cstrncat_alloca_true_valid_memsafety_true_termination_i__cstrncatErr6RequiresViolation, __U_MULTI_fopenbsd_cstrncat_alloca_true_valid_memsafety_true_termination_i__cstrncatErr5RequiresViolation, mainErr3RequiresViolation, mainErr1RequiresViolation, mainErr2RequiresViolation, mainErr4EnsuresViolationMEMORY_LEAK, mainErr0RequiresViolation]=== [2018-04-05 16:19:11,111 INFO L82 PathProgramCache]: Analyzing trace with hash -1704017820, now seen corresponding path program 1 times No working directory specified, using /storage/ultimate/releaseScripts/default/UAutomizer-linux/z3 Starting monitored process 8 with z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 8 with z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2018-04-05 16:19:11,131 INFO L68 tionRefinementEngine]: Using refinement strategy FixedRefinementStrategy [2018-04-05 16:19:11,195 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-04-05 16:19:11,203 INFO L270 TraceCheckSpWp]: Computing forward predicates... [2018-04-05 16:19:11,706 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-04-05 16:19:11,707 INFO L314 TraceCheckSpWp]: Computing backward predicates... [2018-04-05 16:19:11,745 INFO L477 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 18 treesize of output 14 [2018-04-05 16:19:11,746 INFO L267 ElimStorePlain]: Start of recursive call 2: End of recursive call: and 1 xjuncts. [2018-04-05 16:19:11,799 INFO L477 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 14 treesize of output 12 [2018-04-05 16:19:11,800 INFO L267 ElimStorePlain]: Start of recursive call 3: End of recursive call: and 1 xjuncts. [2018-04-05 16:19:11,826 INFO L267 ElimStorePlain]: Start of recursive call 1: 2 dim-0 vars, 2 dim-1 vars, End of recursive call: and 2 xjuncts. [2018-04-05 16:19:11,827 INFO L202 ElimStorePlain]: Needed 3 recursive calls to eliminate 4 variables, input treesize:33, output treesize:7 [2018-04-05 16:19:11,970 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-04-05 16:19:12,025 INFO L320 seRefinementStrategy]: Constructing automaton from 2 perfect and 0 imperfect interpolant sequences. [2018-04-05 16:19:12,025 INFO L335 seRefinementStrategy]: Number of different interpolants: perfect sequences [9, 9] imperfect sequences [] total 9 [2018-04-05 16:19:12,025 INFO L442 AbstractCegarLoop]: Interpolant automaton has 10 states [2018-04-05 16:19:12,026 INFO L132 InterpolantAutomaton]: Constructing interpolant automaton starting with 10 interpolants. [2018-04-05 16:19:12,026 INFO L133 InterpolantAutomaton]: CoverageRelationStatistics Valid=19, Invalid=71, Unknown=0, NotChecked=0, Total=90 [2018-04-05 16:19:12,026 INFO L87 Difference]: Start difference. First operand 89 states and 100 transitions. Second operand 10 states. [2018-04-05 16:19:13,030 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-04-05 16:19:13,030 INFO L93 Difference]: Finished difference Result 97 states and 103 transitions. [2018-04-05 16:19:13,031 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 11 states. [2018-04-05 16:19:13,031 INFO L78 Accepts]: Start accepts. Automaton has 10 states. Word has length 34 [2018-04-05 16:19:13,031 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-04-05 16:19:13,032 INFO L225 Difference]: With dead ends: 97 [2018-04-05 16:19:13,032 INFO L226 Difference]: Without dead ends: 94 [2018-04-05 16:19:13,033 INFO L567 BasicCegarLoop]: 0 DeclaredPredicates, 74 GetRequests, 56 SyntacticMatches, 3 SemanticMatches, 15 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 25 ImplicationChecksByTransitivity, 1.0s TimeCoverageRelationStatistics Valid=65, Invalid=207, Unknown=0, NotChecked=0, Total=272 [2018-04-05 16:19:13,033 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 94 states. [2018-04-05 16:19:13,044 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 94 to 89. [2018-04-05 16:19:13,045 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 89 states. [2018-04-05 16:19:13,046 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 89 states to 89 states and 97 transitions. [2018-04-05 16:19:13,046 INFO L78 Accepts]: Start accepts. Automaton has 89 states and 97 transitions. Word has length 34 [2018-04-05 16:19:13,046 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-04-05 16:19:13,046 INFO L459 AbstractCegarLoop]: Abstraction has 89 states and 97 transitions. [2018-04-05 16:19:13,046 INFO L460 AbstractCegarLoop]: Interpolant automaton has 10 states. [2018-04-05 16:19:13,048 INFO L276 IsEmpty]: Start isEmpty. Operand 89 states and 97 transitions. [2018-04-05 16:19:13,050 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 41 [2018-04-05 16:19:13,050 INFO L347 BasicCegarLoop]: Found error trace [2018-04-05 16:19:13,050 INFO L355 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2018-04-05 16:19:13,051 INFO L408 AbstractCegarLoop]: === Iteration 8 === [__U_MULTI_fopenbsd_cstrncat_alloca_true_valid_memsafety_true_termination_i__cstrncatErr3RequiresViolation, __U_MULTI_fopenbsd_cstrncat_alloca_true_valid_memsafety_true_termination_i__cstrncatErr1RequiresViolation, __U_MULTI_fopenbsd_cstrncat_alloca_true_valid_memsafety_true_termination_i__cstrncatErr7RequiresViolation, __U_MULTI_fopenbsd_cstrncat_alloca_true_valid_memsafety_true_termination_i__cstrncatErr2RequiresViolation, __U_MULTI_fopenbsd_cstrncat_alloca_true_valid_memsafety_true_termination_i__cstrncatErr4RequiresViolation, __U_MULTI_fopenbsd_cstrncat_alloca_true_valid_memsafety_true_termination_i__cstrncatErr0RequiresViolation, __U_MULTI_fopenbsd_cstrncat_alloca_true_valid_memsafety_true_termination_i__cstrncatErr6RequiresViolation, __U_MULTI_fopenbsd_cstrncat_alloca_true_valid_memsafety_true_termination_i__cstrncatErr5RequiresViolation, mainErr3RequiresViolation, mainErr1RequiresViolation, mainErr2RequiresViolation, mainErr4EnsuresViolationMEMORY_LEAK, mainErr0RequiresViolation]=== [2018-04-05 16:19:13,051 INFO L82 PathProgramCache]: Analyzing trace with hash -1346865018, now seen corresponding path program 1 times No working directory specified, using /storage/ultimate/releaseScripts/default/UAutomizer-linux/z3 Starting monitored process 9 with z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 9 with z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2018-04-05 16:19:13,073 INFO L68 tionRefinementEngine]: Using refinement strategy FixedRefinementStrategy [2018-04-05 16:19:13,176 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-04-05 16:19:13,180 INFO L270 TraceCheckSpWp]: Computing forward predicates... [2018-04-05 16:19:13,340 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-04-05 16:19:13,340 INFO L314 TraceCheckSpWp]: Computing backward predicates... [2018-04-05 16:19:13,363 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-04-05 16:19:13,431 INFO L320 seRefinementStrategy]: Constructing automaton from 2 perfect and 0 imperfect interpolant sequences. [2018-04-05 16:19:13,431 INFO L335 seRefinementStrategy]: Number of different interpolants: perfect sequences [6, 6] imperfect sequences [] total 6 [2018-04-05 16:19:13,432 INFO L442 AbstractCegarLoop]: Interpolant automaton has 7 states [2018-04-05 16:19:13,432 INFO L132 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2018-04-05 16:19:13,432 INFO L133 InterpolantAutomaton]: CoverageRelationStatistics Valid=11, Invalid=31, Unknown=0, NotChecked=0, Total=42 [2018-04-05 16:19:13,432 INFO L87 Difference]: Start difference. First operand 89 states and 97 transitions. Second operand 7 states. [2018-04-05 16:19:13,993 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-04-05 16:19:13,993 INFO L93 Difference]: Finished difference Result 92 states and 100 transitions. [2018-04-05 16:19:13,994 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2018-04-05 16:19:13,994 INFO L78 Accepts]: Start accepts. Automaton has 7 states. Word has length 40 [2018-04-05 16:19:13,994 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-04-05 16:19:13,995 INFO L225 Difference]: With dead ends: 92 [2018-04-05 16:19:13,995 INFO L226 Difference]: Without dead ends: 91 [2018-04-05 16:19:13,996 INFO L567 BasicCegarLoop]: 0 DeclaredPredicates, 82 GetRequests, 74 SyntacticMatches, 0 SemanticMatches, 8 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.3s TimeCoverageRelationStatistics Valid=29, Invalid=61, Unknown=0, NotChecked=0, Total=90 [2018-04-05 16:19:13,996 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 91 states. [2018-04-05 16:19:14,021 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 91 to 88. [2018-04-05 16:19:14,022 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 88 states. [2018-04-05 16:19:14,023 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 88 states to 88 states and 95 transitions. [2018-04-05 16:19:14,023 INFO L78 Accepts]: Start accepts. Automaton has 88 states and 95 transitions. Word has length 40 [2018-04-05 16:19:14,023 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-04-05 16:19:14,023 INFO L459 AbstractCegarLoop]: Abstraction has 88 states and 95 transitions. [2018-04-05 16:19:14,023 INFO L460 AbstractCegarLoop]: Interpolant automaton has 7 states. [2018-04-05 16:19:14,024 INFO L276 IsEmpty]: Start isEmpty. Operand 88 states and 95 transitions. [2018-04-05 16:19:14,024 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 41 [2018-04-05 16:19:14,025 INFO L347 BasicCegarLoop]: Found error trace [2018-04-05 16:19:14,025 INFO L355 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2018-04-05 16:19:14,025 INFO L408 AbstractCegarLoop]: === Iteration 9 === [__U_MULTI_fopenbsd_cstrncat_alloca_true_valid_memsafety_true_termination_i__cstrncatErr3RequiresViolation, __U_MULTI_fopenbsd_cstrncat_alloca_true_valid_memsafety_true_termination_i__cstrncatErr1RequiresViolation, __U_MULTI_fopenbsd_cstrncat_alloca_true_valid_memsafety_true_termination_i__cstrncatErr7RequiresViolation, __U_MULTI_fopenbsd_cstrncat_alloca_true_valid_memsafety_true_termination_i__cstrncatErr2RequiresViolation, __U_MULTI_fopenbsd_cstrncat_alloca_true_valid_memsafety_true_termination_i__cstrncatErr4RequiresViolation, __U_MULTI_fopenbsd_cstrncat_alloca_true_valid_memsafety_true_termination_i__cstrncatErr0RequiresViolation, __U_MULTI_fopenbsd_cstrncat_alloca_true_valid_memsafety_true_termination_i__cstrncatErr6RequiresViolation, __U_MULTI_fopenbsd_cstrncat_alloca_true_valid_memsafety_true_termination_i__cstrncatErr5RequiresViolation, mainErr3RequiresViolation, mainErr1RequiresViolation, mainErr2RequiresViolation, mainErr4EnsuresViolationMEMORY_LEAK, mainErr0RequiresViolation]=== [2018-04-05 16:19:14,025 INFO L82 PathProgramCache]: Analyzing trace with hash -1346865017, now seen corresponding path program 1 times No working directory specified, using /storage/ultimate/releaseScripts/default/UAutomizer-linux/z3 Starting monitored process 10 with z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 10 with z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2018-04-05 16:19:14,048 INFO L68 tionRefinementEngine]: Using refinement strategy FixedRefinementStrategy [2018-04-05 16:19:14,111 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-04-05 16:19:14,117 INFO L270 TraceCheckSpWp]: Computing forward predicates... [2018-04-05 16:19:14,600 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-04-05 16:19:14,600 INFO L314 TraceCheckSpWp]: Computing backward predicates... [2018-04-05 16:19:14,633 INFO L477 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 12 treesize of output 10 [2018-04-05 16:19:14,633 INFO L267 ElimStorePlain]: Start of recursive call 2: End of recursive call: and 1 xjuncts. [2018-04-05 16:19:14,669 INFO L477 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 16 treesize of output 12 [2018-04-05 16:19:14,670 INFO L267 ElimStorePlain]: Start of recursive call 3: End of recursive call: and 1 xjuncts. [2018-04-05 16:19:14,712 INFO L267 ElimStorePlain]: Start of recursive call 1: 2 dim-0 vars, 2 dim-1 vars, End of recursive call: and 2 xjuncts. [2018-04-05 16:19:14,713 INFO L202 ElimStorePlain]: Needed 3 recursive calls to eliminate 4 variables, input treesize:29, output treesize:7 [2018-04-05 16:19:14,849 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-04-05 16:19:14,959 INFO L320 seRefinementStrategy]: Constructing automaton from 2 perfect and 0 imperfect interpolant sequences. [2018-04-05 16:19:14,959 INFO L335 seRefinementStrategy]: Number of different interpolants: perfect sequences [9, 9] imperfect sequences [] total 9 [2018-04-05 16:19:14,959 INFO L442 AbstractCegarLoop]: Interpolant automaton has 10 states [2018-04-05 16:19:14,960 INFO L132 InterpolantAutomaton]: Constructing interpolant automaton starting with 10 interpolants. [2018-04-05 16:19:14,960 INFO L133 InterpolantAutomaton]: CoverageRelationStatistics Valid=19, Invalid=71, Unknown=0, NotChecked=0, Total=90 [2018-04-05 16:19:14,960 INFO L87 Difference]: Start difference. First operand 88 states and 95 transitions. Second operand 10 states. [2018-04-05 16:19:15,887 WARN L148 SmtUtils]: Spent 122ms on a formula simplification that was a NOOP. DAG size: 28 [2018-04-05 16:19:16,248 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-04-05 16:19:16,248 INFO L93 Difference]: Finished difference Result 89 states and 95 transitions. [2018-04-05 16:19:16,249 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 12 states. [2018-04-05 16:19:16,249 INFO L78 Accepts]: Start accepts. Automaton has 10 states. Word has length 40 [2018-04-05 16:19:16,249 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-04-05 16:19:16,250 INFO L225 Difference]: With dead ends: 89 [2018-04-05 16:19:16,250 INFO L226 Difference]: Without dead ends: 88 [2018-04-05 16:19:16,251 INFO L567 BasicCegarLoop]: 0 DeclaredPredicates, 86 GetRequests, 69 SyntacticMatches, 2 SemanticMatches, 15 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 34 ImplicationChecksByTransitivity, 1.1s TimeCoverageRelationStatistics Valid=62, Invalid=210, Unknown=0, NotChecked=0, Total=272 [2018-04-05 16:19:16,253 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 88 states. [2018-04-05 16:19:16,285 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 88 to 88. [2018-04-05 16:19:16,285 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 88 states. [2018-04-05 16:19:16,286 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 88 states to 88 states and 94 transitions. [2018-04-05 16:19:16,286 INFO L78 Accepts]: Start accepts. Automaton has 88 states and 94 transitions. Word has length 40 [2018-04-05 16:19:16,286 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-04-05 16:19:16,287 INFO L459 AbstractCegarLoop]: Abstraction has 88 states and 94 transitions. [2018-04-05 16:19:16,287 INFO L460 AbstractCegarLoop]: Interpolant automaton has 10 states. [2018-04-05 16:19:16,287 INFO L276 IsEmpty]: Start isEmpty. Operand 88 states and 94 transitions. [2018-04-05 16:19:16,288 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 41 [2018-04-05 16:19:16,288 INFO L347 BasicCegarLoop]: Found error trace [2018-04-05 16:19:16,288 INFO L355 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2018-04-05 16:19:16,288 INFO L408 AbstractCegarLoop]: === Iteration 10 === [__U_MULTI_fopenbsd_cstrncat_alloca_true_valid_memsafety_true_termination_i__cstrncatErr3RequiresViolation, __U_MULTI_fopenbsd_cstrncat_alloca_true_valid_memsafety_true_termination_i__cstrncatErr1RequiresViolation, __U_MULTI_fopenbsd_cstrncat_alloca_true_valid_memsafety_true_termination_i__cstrncatErr7RequiresViolation, __U_MULTI_fopenbsd_cstrncat_alloca_true_valid_memsafety_true_termination_i__cstrncatErr2RequiresViolation, __U_MULTI_fopenbsd_cstrncat_alloca_true_valid_memsafety_true_termination_i__cstrncatErr4RequiresViolation, __U_MULTI_fopenbsd_cstrncat_alloca_true_valid_memsafety_true_termination_i__cstrncatErr0RequiresViolation, __U_MULTI_fopenbsd_cstrncat_alloca_true_valid_memsafety_true_termination_i__cstrncatErr6RequiresViolation, __U_MULTI_fopenbsd_cstrncat_alloca_true_valid_memsafety_true_termination_i__cstrncatErr5RequiresViolation, mainErr3RequiresViolation, mainErr1RequiresViolation, mainErr2RequiresViolation, mainErr4EnsuresViolationMEMORY_LEAK, mainErr0RequiresViolation]=== [2018-04-05 16:19:16,289 INFO L82 PathProgramCache]: Analyzing trace with hash -509407784, now seen corresponding path program 1 times No working directory specified, using /storage/ultimate/releaseScripts/default/UAutomizer-linux/z3 Starting monitored process 11 with z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 11 with z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2018-04-05 16:19:16,320 INFO L68 tionRefinementEngine]: Using refinement strategy FixedRefinementStrategy [2018-04-05 16:19:16,364 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-04-05 16:19:16,368 INFO L270 TraceCheckSpWp]: Computing forward predicates... [2018-04-05 16:19:16,533 INFO L700 Elim1Store]: detected not equals via solver [2018-04-05 16:19:16,534 INFO L477 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 2 select indices, 2 select index equivalence classes, 2 disjoint index pairs (out of 1 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 20 treesize of output 27 [2018-04-05 16:19:16,548 INFO L477 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 2 select indices, 2 select index equivalence classes, 2 disjoint index pairs (out of 1 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 23 treesize of output 15 [2018-04-05 16:19:16,548 INFO L267 ElimStorePlain]: Start of recursive call 3: End of recursive call: and 1 xjuncts. [2018-04-05 16:19:16,576 INFO L267 ElimStorePlain]: Start of recursive call 2: 1 dim-1 vars, End of recursive call: and 1 xjuncts. [2018-04-05 16:19:16,609 INFO L267 ElimStorePlain]: Start of recursive call 1: 2 dim-0 vars, 1 dim-1 vars, End of recursive call: 2 dim-0 vars, and 1 xjuncts. [2018-04-05 16:19:16,609 INFO L202 ElimStorePlain]: Needed 3 recursive calls to eliminate 3 variables, input treesize:23, output treesize:15 [2018-04-05 16:19:16,776 WARN L1033 $PredicateComparison]: unable to prove that (exists ((|main_#t~malloc11.base| Int)) (let ((.cse0 (store |c_old(#valid)| |main_#t~malloc11.base| 1))) (and (= 0 (select |c_old(#valid)| |main_#t~malloc11.base|)) (= |c_#valid| (store (store .cse0 |c_main_#t~malloc12.base| 1) |main_#t~malloc11.base| 0)) (= (select .cse0 |c_main_#t~malloc12.base|) 0)))) is different from true [2018-04-05 16:19:16,800 WARN L1033 $PredicateComparison]: unable to prove that (exists ((|main_#t~malloc11.base| Int) (|main_#t~malloc12.base| Int)) (let ((.cse0 (store |c_old(#valid)| |main_#t~malloc11.base| 1))) (and (= |c_#valid| (store (store (store .cse0 |main_#t~malloc12.base| 1) |main_#t~malloc11.base| 0) |main_#t~malloc12.base| 0)) (= 0 (select |c_old(#valid)| |main_#t~malloc11.base|)) (= (select .cse0 |main_#t~malloc12.base|) 0)))) is different from true [2018-04-05 16:19:16,817 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-04-05 16:19:16,817 INFO L314 TraceCheckSpWp]: Computing backward predicates... [2018-04-05 16:19:16,939 WARN L1011 $PredicateComparison]: unable to prove that (forall ((|v_main_#t~malloc12.base_12| Int)) (or (= (store (store (store |c_#valid| |v_main_#t~malloc12.base_12| 1) |c_main_#t~malloc11.base| 0) |v_main_#t~malloc12.base_12| 0) |c_old(#valid)|) (not (= 0 (select |c_#valid| |v_main_#t~malloc12.base_12|))))) is different from false [2018-04-05 16:19:16,978 WARN L1011 $PredicateComparison]: unable to prove that (forall ((|v_main_#t~malloc12.base_12| Int) (|v_main_#t~malloc11.base_11| Int)) (let ((.cse0 (store |c_#valid| |v_main_#t~malloc11.base_11| 1))) (or (= (store (store (store .cse0 |v_main_#t~malloc12.base_12| 1) |v_main_#t~malloc11.base_11| 0) |v_main_#t~malloc12.base_12| 0) |c_old(#valid)|) (not (= (select .cse0 |v_main_#t~malloc12.base_12|) 0)) (not (= 0 (select |c_#valid| |v_main_#t~malloc11.base_11|)))))) is different from false [2018-04-05 16:19:17,105 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-04-05 16:19:17,184 INFO L320 seRefinementStrategy]: Constructing automaton from 2 perfect and 0 imperfect interpolant sequences. [2018-04-05 16:19:17,184 INFO L335 seRefinementStrategy]: Number of different interpolants: perfect sequences [7, 6] imperfect sequences [] total 11 [2018-04-05 16:19:17,185 INFO L442 AbstractCegarLoop]: Interpolant automaton has 12 states [2018-04-05 16:19:17,185 INFO L132 InterpolantAutomaton]: Constructing interpolant automaton starting with 12 interpolants. [2018-04-05 16:19:17,185 INFO L133 InterpolantAutomaton]: CoverageRelationStatistics Valid=23, Invalid=45, Unknown=4, NotChecked=60, Total=132 [2018-04-05 16:19:17,185 INFO L87 Difference]: Start difference. First operand 88 states and 94 transitions. Second operand 12 states. [2018-04-05 16:19:17,228 WARN L1011 $PredicateComparison]: unable to prove that (and (= |c_#valid| |c_old(#valid)|) (forall ((|v_main_#t~malloc12.base_12| Int) (|v_main_#t~malloc11.base_11| Int)) (let ((.cse0 (store |c_#valid| |v_main_#t~malloc11.base_11| 1))) (or (= (store (store (store .cse0 |v_main_#t~malloc12.base_12| 1) |v_main_#t~malloc11.base_11| 0) |v_main_#t~malloc12.base_12| 0) |c_old(#valid)|) (not (= (select .cse0 |v_main_#t~malloc12.base_12|) 0)) (not (= 0 (select |c_#valid| |v_main_#t~malloc11.base_11|))))))) is different from false [2018-04-05 16:19:19,125 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-04-05 16:19:19,125 INFO L93 Difference]: Finished difference Result 157 states and 168 transitions. [2018-04-05 16:19:19,126 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 11 states. [2018-04-05 16:19:19,126 INFO L78 Accepts]: Start accepts. Automaton has 12 states. Word has length 40 [2018-04-05 16:19:19,126 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-04-05 16:19:19,127 INFO L225 Difference]: With dead ends: 157 [2018-04-05 16:19:19,128 INFO L226 Difference]: Without dead ends: 143 [2018-04-05 16:19:19,128 INFO L567 BasicCegarLoop]: 0 DeclaredPredicates, 87 GetRequests, 69 SyntacticMatches, 2 SemanticMatches, 16 ConstructedPredicates, 5 IntricatePredicates, 0 DeprecatedPredicates, 12 ImplicationChecksByTransitivity, 0.8s TimeCoverageRelationStatistics Valid=45, Invalid=125, Unknown=6, NotChecked=130, Total=306 [2018-04-05 16:19:19,129 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 143 states. [2018-04-05 16:19:19,175 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 143 to 136. [2018-04-05 16:19:19,176 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 136 states. [2018-04-05 16:19:19,184 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 136 states to 136 states and 152 transitions. [2018-04-05 16:19:19,184 INFO L78 Accepts]: Start accepts. Automaton has 136 states and 152 transitions. Word has length 40 [2018-04-05 16:19:19,185 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-04-05 16:19:19,185 INFO L459 AbstractCegarLoop]: Abstraction has 136 states and 152 transitions. [2018-04-05 16:19:19,185 INFO L460 AbstractCegarLoop]: Interpolant automaton has 12 states. [2018-04-05 16:19:19,185 INFO L276 IsEmpty]: Start isEmpty. Operand 136 states and 152 transitions. [2018-04-05 16:19:19,186 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 42 [2018-04-05 16:19:19,186 INFO L347 BasicCegarLoop]: Found error trace [2018-04-05 16:19:19,186 INFO L355 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2018-04-05 16:19:19,186 INFO L408 AbstractCegarLoop]: === Iteration 11 === [__U_MULTI_fopenbsd_cstrncat_alloca_true_valid_memsafety_true_termination_i__cstrncatErr3RequiresViolation, __U_MULTI_fopenbsd_cstrncat_alloca_true_valid_memsafety_true_termination_i__cstrncatErr1RequiresViolation, __U_MULTI_fopenbsd_cstrncat_alloca_true_valid_memsafety_true_termination_i__cstrncatErr7RequiresViolation, __U_MULTI_fopenbsd_cstrncat_alloca_true_valid_memsafety_true_termination_i__cstrncatErr2RequiresViolation, __U_MULTI_fopenbsd_cstrncat_alloca_true_valid_memsafety_true_termination_i__cstrncatErr4RequiresViolation, __U_MULTI_fopenbsd_cstrncat_alloca_true_valid_memsafety_true_termination_i__cstrncatErr0RequiresViolation, __U_MULTI_fopenbsd_cstrncat_alloca_true_valid_memsafety_true_termination_i__cstrncatErr6RequiresViolation, __U_MULTI_fopenbsd_cstrncat_alloca_true_valid_memsafety_true_termination_i__cstrncatErr5RequiresViolation, mainErr3RequiresViolation, mainErr1RequiresViolation, mainErr2RequiresViolation, mainErr4EnsuresViolationMEMORY_LEAK, mainErr0RequiresViolation]=== [2018-04-05 16:19:19,186 INFO L82 PathProgramCache]: Analyzing trace with hash 570993852, now seen corresponding path program 1 times No working directory specified, using /storage/ultimate/releaseScripts/default/UAutomizer-linux/z3 Starting monitored process 12 with z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 12 with z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2018-04-05 16:19:19,240 INFO L68 tionRefinementEngine]: Using refinement strategy FixedRefinementStrategy [2018-04-05 16:19:19,319 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-04-05 16:19:19,322 INFO L270 TraceCheckSpWp]: Computing forward predicates... [2018-04-05 16:19:19,514 INFO L700 Elim1Store]: detected not equals via solver [2018-04-05 16:19:19,515 INFO L477 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 2 select indices, 2 select index equivalence classes, 2 disjoint index pairs (out of 1 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 20 treesize of output 27 [2018-04-05 16:19:19,527 INFO L477 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 2 select indices, 2 select index equivalence classes, 2 disjoint index pairs (out of 1 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 23 treesize of output 15 [2018-04-05 16:19:19,527 INFO L267 ElimStorePlain]: Start of recursive call 3: End of recursive call: and 1 xjuncts. [2018-04-05 16:19:19,578 INFO L267 ElimStorePlain]: Start of recursive call 2: 1 dim-1 vars, End of recursive call: and 1 xjuncts. [2018-04-05 16:19:19,630 INFO L267 ElimStorePlain]: Start of recursive call 1: 2 dim-0 vars, 1 dim-1 vars, End of recursive call: 2 dim-0 vars, and 1 xjuncts. [2018-04-05 16:19:19,630 INFO L202 ElimStorePlain]: Needed 3 recursive calls to eliminate 3 variables, input treesize:23, output treesize:15 [2018-04-05 16:19:19,732 WARN L1033 $PredicateComparison]: unable to prove that (exists ((|main_#t~malloc11.base| Int)) (let ((.cse0 (store |c_old(#valid)| |main_#t~malloc11.base| 1))) (and (= 0 (select |c_old(#valid)| |main_#t~malloc11.base|)) (= |c_#valid| (store (store .cse0 |c_main_#t~malloc12.base| 1) |main_#t~malloc11.base| 0)) (= (select .cse0 |c_main_#t~malloc12.base|) 0)))) is different from true [2018-04-05 16:19:19,749 WARN L1033 $PredicateComparison]: unable to prove that (exists ((|main_#t~malloc11.base| Int) (|main_#t~malloc12.base| Int)) (let ((.cse0 (store |c_old(#valid)| |main_#t~malloc11.base| 1))) (and (= |c_#valid| (store (store (store .cse0 |main_#t~malloc12.base| 1) |main_#t~malloc11.base| 0) |main_#t~malloc12.base| 0)) (= 0 (select |c_old(#valid)| |main_#t~malloc11.base|)) (= (select .cse0 |main_#t~malloc12.base|) 0)))) is different from true [2018-04-05 16:19:19,764 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-04-05 16:19:19,764 INFO L314 TraceCheckSpWp]: Computing backward predicates... [2018-04-05 16:19:19,888 WARN L1011 $PredicateComparison]: unable to prove that (forall ((|v_main_#t~malloc12.base_14| Int)) (or (= |c_old(#valid)| (store (store (store |c_#valid| |v_main_#t~malloc12.base_14| 1) |c_main_#t~malloc11.base| 0) |v_main_#t~malloc12.base_14| 0)) (not (= 0 (select |c_#valid| |v_main_#t~malloc12.base_14|))))) is different from false [2018-04-05 16:19:19,928 WARN L1011 $PredicateComparison]: unable to prove that (forall ((|v_main_#t~malloc11.base_13| Int) (|v_main_#t~malloc12.base_14| Int)) (let ((.cse0 (store |c_#valid| |v_main_#t~malloc11.base_13| 1))) (or (not (= 0 (select .cse0 |v_main_#t~malloc12.base_14|))) (= (store (store (store .cse0 |v_main_#t~malloc12.base_14| 1) |v_main_#t~malloc11.base_13| 0) |v_main_#t~malloc12.base_14| 0) |c_old(#valid)|) (not (= 0 (select |c_#valid| |v_main_#t~malloc11.base_13|)))))) is different from false [2018-04-05 16:19:20,003 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-04-05 16:19:20,045 INFO L320 seRefinementStrategy]: Constructing automaton from 2 perfect and 0 imperfect interpolant sequences. [2018-04-05 16:19:20,045 INFO L335 seRefinementStrategy]: Number of different interpolants: perfect sequences [7, 6] imperfect sequences [] total 11 [2018-04-05 16:19:20,045 INFO L442 AbstractCegarLoop]: Interpolant automaton has 12 states [2018-04-05 16:19:20,046 INFO L132 InterpolantAutomaton]: Constructing interpolant automaton starting with 12 interpolants. [2018-04-05 16:19:20,046 INFO L133 InterpolantAutomaton]: CoverageRelationStatistics Valid=23, Invalid=45, Unknown=4, NotChecked=60, Total=132 [2018-04-05 16:19:20,046 INFO L87 Difference]: Start difference. First operand 136 states and 152 transitions. Second operand 12 states. [2018-04-05 16:19:20,163 WARN L1011 $PredicateComparison]: unable to prove that (and (= |c_#valid| |c_old(#valid)|) (forall ((|v_main_#t~malloc11.base_13| Int) (|v_main_#t~malloc12.base_14| Int)) (let ((.cse0 (store |c_#valid| |v_main_#t~malloc11.base_13| 1))) (or (not (= 0 (select .cse0 |v_main_#t~malloc12.base_14|))) (= (store (store (store .cse0 |v_main_#t~malloc12.base_14| 1) |v_main_#t~malloc11.base_13| 0) |v_main_#t~malloc12.base_14| 0) |c_old(#valid)|) (not (= 0 (select |c_#valid| |v_main_#t~malloc11.base_13|))))))) is different from false [2018-04-05 16:19:22,487 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-04-05 16:19:22,487 INFO L93 Difference]: Finished difference Result 205 states and 225 transitions. [2018-04-05 16:19:22,488 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 11 states. [2018-04-05 16:19:22,488 INFO L78 Accepts]: Start accepts. Automaton has 12 states. Word has length 41 [2018-04-05 16:19:22,488 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-04-05 16:19:22,489 INFO L225 Difference]: With dead ends: 205 [2018-04-05 16:19:22,489 INFO L226 Difference]: Without dead ends: 191 [2018-04-05 16:19:22,490 INFO L567 BasicCegarLoop]: 0 DeclaredPredicates, 89 GetRequests, 71 SyntacticMatches, 2 SemanticMatches, 16 ConstructedPredicates, 5 IntricatePredicates, 0 DeprecatedPredicates, 12 ImplicationChecksByTransitivity, 0.7s TimeCoverageRelationStatistics Valid=45, Invalid=125, Unknown=6, NotChecked=130, Total=306 [2018-04-05 16:19:22,490 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 191 states. [2018-04-05 16:19:22,511 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 191 to 137. [2018-04-05 16:19:22,511 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 137 states. [2018-04-05 16:19:22,512 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 137 states to 137 states and 153 transitions. [2018-04-05 16:19:22,513 INFO L78 Accepts]: Start accepts. Automaton has 137 states and 153 transitions. Word has length 41 [2018-04-05 16:19:22,513 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-04-05 16:19:22,513 INFO L459 AbstractCegarLoop]: Abstraction has 137 states and 153 transitions. [2018-04-05 16:19:22,513 INFO L460 AbstractCegarLoop]: Interpolant automaton has 12 states. [2018-04-05 16:19:22,514 INFO L276 IsEmpty]: Start isEmpty. Operand 137 states and 153 transitions. [2018-04-05 16:19:22,515 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 42 [2018-04-05 16:19:22,515 INFO L347 BasicCegarLoop]: Found error trace [2018-04-05 16:19:22,515 INFO L355 BasicCegarLoop]: trace histogram [2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2018-04-05 16:19:22,515 INFO L408 AbstractCegarLoop]: === Iteration 12 === [__U_MULTI_fopenbsd_cstrncat_alloca_true_valid_memsafety_true_termination_i__cstrncatErr3RequiresViolation, __U_MULTI_fopenbsd_cstrncat_alloca_true_valid_memsafety_true_termination_i__cstrncatErr1RequiresViolation, __U_MULTI_fopenbsd_cstrncat_alloca_true_valid_memsafety_true_termination_i__cstrncatErr7RequiresViolation, __U_MULTI_fopenbsd_cstrncat_alloca_true_valid_memsafety_true_termination_i__cstrncatErr2RequiresViolation, __U_MULTI_fopenbsd_cstrncat_alloca_true_valid_memsafety_true_termination_i__cstrncatErr4RequiresViolation, __U_MULTI_fopenbsd_cstrncat_alloca_true_valid_memsafety_true_termination_i__cstrncatErr0RequiresViolation, __U_MULTI_fopenbsd_cstrncat_alloca_true_valid_memsafety_true_termination_i__cstrncatErr6RequiresViolation, __U_MULTI_fopenbsd_cstrncat_alloca_true_valid_memsafety_true_termination_i__cstrncatErr5RequiresViolation, mainErr3RequiresViolation, mainErr1RequiresViolation, mainErr2RequiresViolation, mainErr4EnsuresViolationMEMORY_LEAK, mainErr0RequiresViolation]=== [2018-04-05 16:19:22,516 INFO L82 PathProgramCache]: Analyzing trace with hash -357346301, now seen corresponding path program 1 times No working directory specified, using /storage/ultimate/releaseScripts/default/UAutomizer-linux/z3 Starting monitored process 13 with z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 13 with z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2018-04-05 16:19:22,541 INFO L68 tionRefinementEngine]: Using refinement strategy FixedRefinementStrategy [2018-04-05 16:19:22,602 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-04-05 16:19:22,613 INFO L270 TraceCheckSpWp]: Computing forward predicates... [2018-04-05 16:19:22,749 INFO L134 CoverageAnalysis]: Checked inductivity of 2 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 2 trivial. 0 not checked. [2018-04-05 16:19:22,749 INFO L314 TraceCheckSpWp]: Computing backward predicates... [2018-04-05 16:19:22,770 INFO L134 CoverageAnalysis]: Checked inductivity of 2 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 2 trivial. 0 not checked. [2018-04-05 16:19:22,811 INFO L320 seRefinementStrategy]: Constructing automaton from 2 perfect and 0 imperfect interpolant sequences. [2018-04-05 16:19:22,811 INFO L335 seRefinementStrategy]: Number of different interpolants: perfect sequences [6, 6] imperfect sequences [] total 6 [2018-04-05 16:19:22,812 INFO L442 AbstractCegarLoop]: Interpolant automaton has 7 states [2018-04-05 16:19:22,812 INFO L132 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2018-04-05 16:19:22,812 INFO L133 InterpolantAutomaton]: CoverageRelationStatistics Valid=11, Invalid=31, Unknown=0, NotChecked=0, Total=42 [2018-04-05 16:19:22,812 INFO L87 Difference]: Start difference. First operand 137 states and 153 transitions. Second operand 7 states. [2018-04-05 16:19:23,340 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-04-05 16:19:23,340 INFO L93 Difference]: Finished difference Result 140 states and 156 transitions. [2018-04-05 16:19:23,341 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2018-04-05 16:19:23,341 INFO L78 Accepts]: Start accepts. Automaton has 7 states. Word has length 41 [2018-04-05 16:19:23,341 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-04-05 16:19:23,342 INFO L225 Difference]: With dead ends: 140 [2018-04-05 16:19:23,343 INFO L226 Difference]: Without dead ends: 139 [2018-04-05 16:19:23,343 INFO L567 BasicCegarLoop]: 0 DeclaredPredicates, 84 GetRequests, 76 SyntacticMatches, 0 SemanticMatches, 8 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=29, Invalid=61, Unknown=0, NotChecked=0, Total=90 [2018-04-05 16:19:23,343 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 139 states. [2018-04-05 16:19:23,359 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 139 to 136. [2018-04-05 16:19:23,359 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 136 states. [2018-04-05 16:19:23,365 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 136 states to 136 states and 151 transitions. [2018-04-05 16:19:23,365 INFO L78 Accepts]: Start accepts. Automaton has 136 states and 151 transitions. Word has length 41 [2018-04-05 16:19:23,365 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-04-05 16:19:23,365 INFO L459 AbstractCegarLoop]: Abstraction has 136 states and 151 transitions. [2018-04-05 16:19:23,366 INFO L460 AbstractCegarLoop]: Interpolant automaton has 7 states. [2018-04-05 16:19:23,366 INFO L276 IsEmpty]: Start isEmpty. Operand 136 states and 151 transitions. [2018-04-05 16:19:23,367 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 42 [2018-04-05 16:19:23,367 INFO L347 BasicCegarLoop]: Found error trace [2018-04-05 16:19:23,367 INFO L355 BasicCegarLoop]: trace histogram [2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2018-04-05 16:19:23,367 INFO L408 AbstractCegarLoop]: === Iteration 13 === [__U_MULTI_fopenbsd_cstrncat_alloca_true_valid_memsafety_true_termination_i__cstrncatErr3RequiresViolation, __U_MULTI_fopenbsd_cstrncat_alloca_true_valid_memsafety_true_termination_i__cstrncatErr1RequiresViolation, __U_MULTI_fopenbsd_cstrncat_alloca_true_valid_memsafety_true_termination_i__cstrncatErr7RequiresViolation, __U_MULTI_fopenbsd_cstrncat_alloca_true_valid_memsafety_true_termination_i__cstrncatErr2RequiresViolation, __U_MULTI_fopenbsd_cstrncat_alloca_true_valid_memsafety_true_termination_i__cstrncatErr4RequiresViolation, __U_MULTI_fopenbsd_cstrncat_alloca_true_valid_memsafety_true_termination_i__cstrncatErr0RequiresViolation, __U_MULTI_fopenbsd_cstrncat_alloca_true_valid_memsafety_true_termination_i__cstrncatErr6RequiresViolation, __U_MULTI_fopenbsd_cstrncat_alloca_true_valid_memsafety_true_termination_i__cstrncatErr5RequiresViolation, mainErr3RequiresViolation, mainErr1RequiresViolation, mainErr2RequiresViolation, mainErr4EnsuresViolationMEMORY_LEAK, mainErr0RequiresViolation]=== [2018-04-05 16:19:23,367 INFO L82 PathProgramCache]: Analyzing trace with hash -357346300, now seen corresponding path program 1 times No working directory specified, using /storage/ultimate/releaseScripts/default/UAutomizer-linux/z3 Starting monitored process 14 with z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 14 with z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2018-04-05 16:19:23,395 INFO L68 tionRefinementEngine]: Using refinement strategy FixedRefinementStrategy [2018-04-05 16:19:23,438 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-04-05 16:19:23,442 INFO L270 TraceCheckSpWp]: Computing forward predicates... [2018-04-05 16:19:23,538 INFO L477 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 6 treesize of output 5 [2018-04-05 16:19:23,539 INFO L267 ElimStorePlain]: Start of recursive call 2: End of recursive call: and 1 xjuncts. [2018-04-05 16:19:23,588 INFO L477 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 6 treesize of output 5 [2018-04-05 16:19:23,589 INFO L267 ElimStorePlain]: Start of recursive call 3: End of recursive call: and 1 xjuncts. [2018-04-05 16:19:23,625 INFO L267 ElimStorePlain]: Start of recursive call 1: 1 dim-0 vars, 2 dim-1 vars, End of recursive call: and 1 xjuncts. [2018-04-05 16:19:23,626 INFO L202 ElimStorePlain]: Needed 3 recursive calls to eliminate 3 variables, input treesize:24, output treesize:19 [2018-04-05 16:19:23,794 INFO L700 Elim1Store]: detected not equals via solver [2018-04-05 16:19:23,803 INFO L700 Elim1Store]: detected not equals via solver [2018-04-05 16:19:23,804 INFO L477 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 1 select indices, 1 select index equivalence classes, 2 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 14 treesize of output 23 [2018-04-05 16:19:23,804 INFO L267 ElimStorePlain]: Start of recursive call 2: End of recursive call: and 1 xjuncts. [2018-04-05 16:19:23,895 INFO L700 Elim1Store]: detected not equals via solver [2018-04-05 16:19:23,900 INFO L700 Elim1Store]: detected not equals via solver [2018-04-05 16:19:23,901 INFO L477 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 2 select indices, 2 select index equivalence classes, 2 disjoint index pairs (out of 1 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 11 treesize of output 4 [2018-04-05 16:19:23,901 INFO L267 ElimStorePlain]: Start of recursive call 3: End of recursive call: and 1 xjuncts. [2018-04-05 16:19:23,938 INFO L267 ElimStorePlain]: Start of recursive call 1: 1 dim-0 vars, 2 dim-1 vars, End of recursive call: and 1 xjuncts. [2018-04-05 16:19:23,938 INFO L202 ElimStorePlain]: Needed 3 recursive calls to eliminate 3 variables, input treesize:30, output treesize:18 [2018-04-05 16:19:24,470 INFO L134 CoverageAnalysis]: Checked inductivity of 2 backedges. 0 proven. 2 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-04-05 16:19:24,471 INFO L314 TraceCheckSpWp]: Computing backward predicates... [2018-04-05 16:19:25,473 INFO L477 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 1 select indices, 1 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 10 treesize of output 3 [2018-04-05 16:19:25,508 INFO L267 ElimStorePlain]: Start of recursive call 2: End of recursive call: and 1 xjuncts. [2018-04-05 16:19:25,547 INFO L477 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 0 select indices, 0 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 11 treesize of output 15 [2018-04-05 16:19:25,628 INFO L477 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 1 select indices, 1 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 12 treesize of output 3 [2018-04-05 16:19:25,629 INFO L267 ElimStorePlain]: Start of recursive call 4: End of recursive call: and 1 xjuncts. [2018-04-05 16:19:25,631 WARN L307 Elim1Store]: Array PQE input equivalent to true [2018-04-05 16:19:25,631 INFO L267 ElimStorePlain]: Start of recursive call 5: End of recursive call: and 1 xjuncts. [2018-04-05 16:19:25,664 INFO L267 ElimStorePlain]: Start of recursive call 3: 1 dim-1 vars, End of recursive call: and 1 xjuncts. [2018-04-05 16:19:25,720 INFO L267 ElimStorePlain]: Start of recursive call 1: 2 dim-0 vars, 2 dim-1 vars, End of recursive call: and 1 xjuncts. [2018-04-05 16:19:25,721 INFO L202 ElimStorePlain]: Needed 5 recursive calls to eliminate 4 variables, input treesize:21, output treesize:3 [2018-04-05 16:19:25,996 INFO L134 CoverageAnalysis]: Checked inductivity of 2 backedges. 0 proven. 2 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-04-05 16:19:26,032 INFO L320 seRefinementStrategy]: Constructing automaton from 0 perfect and 2 imperfect interpolant sequences. [2018-04-05 16:19:26,032 INFO L335 seRefinementStrategy]: Number of different interpolants: perfect sequences [] imperfect sequences [13, 12] total 23 [2018-04-05 16:19:26,033 INFO L442 AbstractCegarLoop]: Interpolant automaton has 24 states [2018-04-05 16:19:26,033 INFO L132 InterpolantAutomaton]: Constructing interpolant automaton starting with 24 interpolants. [2018-04-05 16:19:26,033 INFO L133 InterpolantAutomaton]: CoverageRelationStatistics Valid=63, Invalid=489, Unknown=0, NotChecked=0, Total=552 [2018-04-05 16:19:26,034 INFO L87 Difference]: Start difference. First operand 136 states and 151 transitions. Second operand 24 states. [2018-04-05 16:19:29,287 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-04-05 16:19:29,287 INFO L93 Difference]: Finished difference Result 218 states and 240 transitions. [2018-04-05 16:19:29,288 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 17 states. [2018-04-05 16:19:29,288 INFO L78 Accepts]: Start accepts. Automaton has 24 states. Word has length 41 [2018-04-05 16:19:29,288 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-04-05 16:19:29,290 INFO L225 Difference]: With dead ends: 218 [2018-04-05 16:19:29,290 INFO L226 Difference]: Without dead ends: 217 [2018-04-05 16:19:29,291 INFO L567 BasicCegarLoop]: 0 DeclaredPredicates, 93 GetRequests, 58 SyntacticMatches, 1 SemanticMatches, 34 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 208 ImplicationChecksByTransitivity, 3.4s TimeCoverageRelationStatistics Valid=197, Invalid=1063, Unknown=0, NotChecked=0, Total=1260 [2018-04-05 16:19:29,292 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 217 states. [2018-04-05 16:19:29,328 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 217 to 150. [2018-04-05 16:19:29,328 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 150 states. [2018-04-05 16:19:29,329 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 150 states to 150 states and 167 transitions. [2018-04-05 16:19:29,333 INFO L78 Accepts]: Start accepts. Automaton has 150 states and 167 transitions. Word has length 41 [2018-04-05 16:19:29,334 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-04-05 16:19:29,334 INFO L459 AbstractCegarLoop]: Abstraction has 150 states and 167 transitions. [2018-04-05 16:19:29,334 INFO L460 AbstractCegarLoop]: Interpolant automaton has 24 states. [2018-04-05 16:19:29,334 INFO L276 IsEmpty]: Start isEmpty. Operand 150 states and 167 transitions. [2018-04-05 16:19:29,335 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 42 [2018-04-05 16:19:29,335 INFO L347 BasicCegarLoop]: Found error trace [2018-04-05 16:19:29,335 INFO L355 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2018-04-05 16:19:29,335 INFO L408 AbstractCegarLoop]: === Iteration 14 === [__U_MULTI_fopenbsd_cstrncat_alloca_true_valid_memsafety_true_termination_i__cstrncatErr3RequiresViolation, __U_MULTI_fopenbsd_cstrncat_alloca_true_valid_memsafety_true_termination_i__cstrncatErr1RequiresViolation, __U_MULTI_fopenbsd_cstrncat_alloca_true_valid_memsafety_true_termination_i__cstrncatErr7RequiresViolation, __U_MULTI_fopenbsd_cstrncat_alloca_true_valid_memsafety_true_termination_i__cstrncatErr2RequiresViolation, __U_MULTI_fopenbsd_cstrncat_alloca_true_valid_memsafety_true_termination_i__cstrncatErr4RequiresViolation, __U_MULTI_fopenbsd_cstrncat_alloca_true_valid_memsafety_true_termination_i__cstrncatErr0RequiresViolation, __U_MULTI_fopenbsd_cstrncat_alloca_true_valid_memsafety_true_termination_i__cstrncatErr6RequiresViolation, __U_MULTI_fopenbsd_cstrncat_alloca_true_valid_memsafety_true_termination_i__cstrncatErr5RequiresViolation, mainErr3RequiresViolation, mainErr1RequiresViolation, mainErr2RequiresViolation, mainErr4EnsuresViolationMEMORY_LEAK, mainErr0RequiresViolation]=== [2018-04-05 16:19:29,335 INFO L82 PathProgramCache]: Analyzing trace with hash 37730935, now seen corresponding path program 1 times No working directory specified, using /storage/ultimate/releaseScripts/default/UAutomizer-linux/z3 Starting monitored process 15 with z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 15 with z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2018-04-05 16:19:29,365 INFO L68 tionRefinementEngine]: Using refinement strategy FixedRefinementStrategy [2018-04-05 16:19:29,411 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-04-05 16:19:29,414 INFO L270 TraceCheckSpWp]: Computing forward predicates... [2018-04-05 16:19:29,633 INFO L700 Elim1Store]: detected not equals via solver [2018-04-05 16:19:29,634 INFO L477 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 2 select indices, 2 select index equivalence classes, 2 disjoint index pairs (out of 1 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 20 treesize of output 27 [2018-04-05 16:19:29,642 INFO L477 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 2 select indices, 2 select index equivalence classes, 2 disjoint index pairs (out of 1 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 23 treesize of output 15 [2018-04-05 16:19:29,642 INFO L267 ElimStorePlain]: Start of recursive call 3: End of recursive call: and 1 xjuncts. [2018-04-05 16:19:29,674 INFO L267 ElimStorePlain]: Start of recursive call 2: 1 dim-1 vars, End of recursive call: and 1 xjuncts. [2018-04-05 16:19:29,712 INFO L267 ElimStorePlain]: Start of recursive call 1: 2 dim-0 vars, 1 dim-1 vars, End of recursive call: 2 dim-0 vars, and 1 xjuncts. [2018-04-05 16:19:29,712 INFO L202 ElimStorePlain]: Needed 3 recursive calls to eliminate 3 variables, input treesize:23, output treesize:15 [2018-04-05 16:19:29,797 WARN L1033 $PredicateComparison]: unable to prove that (exists ((|main_#t~malloc11.base| Int)) (let ((.cse0 (store |c_old(#valid)| |main_#t~malloc11.base| 1))) (and (= 0 (select |c_old(#valid)| |main_#t~malloc11.base|)) (= |c_#valid| (store (store .cse0 |c_main_#t~malloc12.base| 1) |main_#t~malloc11.base| 0)) (= (select .cse0 |c_main_#t~malloc12.base|) 0)))) is different from true [2018-04-05 16:19:29,807 WARN L1033 $PredicateComparison]: unable to prove that (exists ((|main_#t~malloc11.base| Int) (|main_#t~malloc12.base| Int)) (let ((.cse0 (store |c_old(#valid)| |main_#t~malloc11.base| 1))) (and (= |c_#valid| (store (store (store .cse0 |main_#t~malloc12.base| 1) |main_#t~malloc11.base| 0) |main_#t~malloc12.base| 0)) (= 0 (select |c_old(#valid)| |main_#t~malloc11.base|)) (= (select .cse0 |main_#t~malloc12.base|) 0)))) is different from true [2018-04-05 16:19:29,825 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-04-05 16:19:29,826 INFO L314 TraceCheckSpWp]: Computing backward predicates... [2018-04-05 16:19:29,978 WARN L1011 $PredicateComparison]: unable to prove that (forall ((|v_main_#t~malloc12.base_17| Int)) (or (not (= 0 (select |c_#valid| |v_main_#t~malloc12.base_17|))) (= |c_old(#valid)| (store (store (store |c_#valid| |v_main_#t~malloc12.base_17| 1) |c_main_#t~malloc11.base| 0) |v_main_#t~malloc12.base_17| 0)))) is different from false [2018-04-05 16:19:30,011 WARN L1011 $PredicateComparison]: unable to prove that (forall ((|v_main_#t~malloc11.base_16| Int) (|v_main_#t~malloc12.base_17| Int)) (let ((.cse0 (store |c_#valid| |v_main_#t~malloc11.base_16| 1))) (or (not (= 0 (select |c_#valid| |v_main_#t~malloc11.base_16|))) (= (store (store (store .cse0 |v_main_#t~malloc12.base_17| 1) |v_main_#t~malloc11.base_16| 0) |v_main_#t~malloc12.base_17| 0) |c_old(#valid)|) (not (= (select .cse0 |v_main_#t~malloc12.base_17|) 0))))) is different from false [2018-04-05 16:19:30,085 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-04-05 16:19:30,164 INFO L320 seRefinementStrategy]: Constructing automaton from 2 perfect and 0 imperfect interpolant sequences. [2018-04-05 16:19:30,164 INFO L335 seRefinementStrategy]: Number of different interpolants: perfect sequences [7, 6] imperfect sequences [] total 11 [2018-04-05 16:19:30,164 INFO L442 AbstractCegarLoop]: Interpolant automaton has 12 states [2018-04-05 16:19:30,165 INFO L132 InterpolantAutomaton]: Constructing interpolant automaton starting with 12 interpolants. [2018-04-05 16:19:30,165 INFO L133 InterpolantAutomaton]: CoverageRelationStatistics Valid=23, Invalid=45, Unknown=4, NotChecked=60, Total=132 [2018-04-05 16:19:30,165 INFO L87 Difference]: Start difference. First operand 150 states and 167 transitions. Second operand 12 states. [2018-04-05 16:19:30,233 WARN L1011 $PredicateComparison]: unable to prove that (and (= |c_#valid| |c_old(#valid)|) (forall ((|v_main_#t~malloc11.base_16| Int) (|v_main_#t~malloc12.base_17| Int)) (let ((.cse0 (store |c_#valid| |v_main_#t~malloc11.base_16| 1))) (or (not (= 0 (select |c_#valid| |v_main_#t~malloc11.base_16|))) (= (store (store (store .cse0 |v_main_#t~malloc12.base_17| 1) |v_main_#t~malloc11.base_16| 0) |v_main_#t~malloc12.base_17| 0) |c_old(#valid)|) (not (= (select .cse0 |v_main_#t~malloc12.base_17|) 0)))))) is different from false [2018-04-05 16:19:32,408 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-04-05 16:19:32,408 INFO L93 Difference]: Finished difference Result 225 states and 247 transitions. [2018-04-05 16:19:32,409 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 11 states. [2018-04-05 16:19:32,409 INFO L78 Accepts]: Start accepts. Automaton has 12 states. Word has length 41 [2018-04-05 16:19:32,409 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-04-05 16:19:32,411 INFO L225 Difference]: With dead ends: 225 [2018-04-05 16:19:32,411 INFO L226 Difference]: Without dead ends: 211 [2018-04-05 16:19:32,411 INFO L567 BasicCegarLoop]: 0 DeclaredPredicates, 89 GetRequests, 71 SyntacticMatches, 2 SemanticMatches, 16 ConstructedPredicates, 5 IntricatePredicates, 0 DeprecatedPredicates, 12 ImplicationChecksByTransitivity, 0.8s TimeCoverageRelationStatistics Valid=45, Invalid=125, Unknown=6, NotChecked=130, Total=306 [2018-04-05 16:19:32,412 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 211 states. [2018-04-05 16:19:32,446 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 211 to 152. [2018-04-05 16:19:32,446 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 152 states. [2018-04-05 16:19:32,456 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 152 states to 152 states and 170 transitions. [2018-04-05 16:19:32,456 INFO L78 Accepts]: Start accepts. Automaton has 152 states and 170 transitions. Word has length 41 [2018-04-05 16:19:32,456 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-04-05 16:19:32,457 INFO L459 AbstractCegarLoop]: Abstraction has 152 states and 170 transitions. [2018-04-05 16:19:32,457 INFO L460 AbstractCegarLoop]: Interpolant automaton has 12 states. [2018-04-05 16:19:32,457 INFO L276 IsEmpty]: Start isEmpty. Operand 152 states and 170 transitions. [2018-04-05 16:19:32,458 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 42 [2018-04-05 16:19:32,458 INFO L347 BasicCegarLoop]: Found error trace [2018-04-05 16:19:32,458 INFO L355 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2018-04-05 16:19:32,458 INFO L408 AbstractCegarLoop]: === Iteration 15 === [__U_MULTI_fopenbsd_cstrncat_alloca_true_valid_memsafety_true_termination_i__cstrncatErr3RequiresViolation, __U_MULTI_fopenbsd_cstrncat_alloca_true_valid_memsafety_true_termination_i__cstrncatErr1RequiresViolation, __U_MULTI_fopenbsd_cstrncat_alloca_true_valid_memsafety_true_termination_i__cstrncatErr7RequiresViolation, __U_MULTI_fopenbsd_cstrncat_alloca_true_valid_memsafety_true_termination_i__cstrncatErr2RequiresViolation, __U_MULTI_fopenbsd_cstrncat_alloca_true_valid_memsafety_true_termination_i__cstrncatErr4RequiresViolation, __U_MULTI_fopenbsd_cstrncat_alloca_true_valid_memsafety_true_termination_i__cstrncatErr0RequiresViolation, __U_MULTI_fopenbsd_cstrncat_alloca_true_valid_memsafety_true_termination_i__cstrncatErr6RequiresViolation, __U_MULTI_fopenbsd_cstrncat_alloca_true_valid_memsafety_true_termination_i__cstrncatErr5RequiresViolation, mainErr3RequiresViolation, mainErr1RequiresViolation, mainErr2RequiresViolation, mainErr4EnsuresViolationMEMORY_LEAK, mainErr0RequiresViolation]=== [2018-04-05 16:19:32,458 INFO L82 PathProgramCache]: Analyzing trace with hash -77724905, now seen corresponding path program 1 times No working directory specified, using /storage/ultimate/releaseScripts/default/UAutomizer-linux/z3 Starting monitored process 16 with z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 16 with z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2018-04-05 16:19:32,482 INFO L68 tionRefinementEngine]: Using refinement strategy FixedRefinementStrategy [2018-04-05 16:19:32,504 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-04-05 16:19:32,507 INFO L270 TraceCheckSpWp]: Computing forward predicates... [2018-04-05 16:19:32,617 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-04-05 16:19:32,618 INFO L314 TraceCheckSpWp]: Computing backward predicates... [2018-04-05 16:19:32,759 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-04-05 16:19:32,795 INFO L320 seRefinementStrategy]: Constructing automaton from 2 perfect and 0 imperfect interpolant sequences. [2018-04-05 16:19:32,796 INFO L335 seRefinementStrategy]: Number of different interpolants: perfect sequences [5, 5] imperfect sequences [] total 7 [2018-04-05 16:19:32,796 INFO L442 AbstractCegarLoop]: Interpolant automaton has 7 states [2018-04-05 16:19:32,796 INFO L132 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2018-04-05 16:19:32,796 INFO L133 InterpolantAutomaton]: CoverageRelationStatistics Valid=17, Invalid=25, Unknown=0, NotChecked=0, Total=42 [2018-04-05 16:19:32,797 INFO L87 Difference]: Start difference. First operand 152 states and 170 transitions. Second operand 7 states. [2018-04-05 16:19:33,135 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-04-05 16:19:33,135 INFO L93 Difference]: Finished difference Result 226 states and 248 transitions. [2018-04-05 16:19:33,135 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2018-04-05 16:19:33,136 INFO L78 Accepts]: Start accepts. Automaton has 7 states. Word has length 41 [2018-04-05 16:19:33,136 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-04-05 16:19:33,137 INFO L225 Difference]: With dead ends: 226 [2018-04-05 16:19:33,137 INFO L226 Difference]: Without dead ends: 148 [2018-04-05 16:19:33,138 INFO L567 BasicCegarLoop]: 0 DeclaredPredicates, 81 GetRequests, 75 SyntacticMatches, 1 SemanticMatches, 5 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 7 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=17, Invalid=25, Unknown=0, NotChecked=0, Total=42 [2018-04-05 16:19:33,138 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 148 states. [2018-04-05 16:19:33,167 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 148 to 148. [2018-04-05 16:19:33,167 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 148 states. [2018-04-05 16:19:33,182 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 148 states to 148 states and 163 transitions. [2018-04-05 16:19:33,182 INFO L78 Accepts]: Start accepts. Automaton has 148 states and 163 transitions. Word has length 41 [2018-04-05 16:19:33,183 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-04-05 16:19:33,183 INFO L459 AbstractCegarLoop]: Abstraction has 148 states and 163 transitions. [2018-04-05 16:19:33,183 INFO L460 AbstractCegarLoop]: Interpolant automaton has 7 states. [2018-04-05 16:19:33,183 INFO L276 IsEmpty]: Start isEmpty. Operand 148 states and 163 transitions. [2018-04-05 16:19:33,184 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 43 [2018-04-05 16:19:33,184 INFO L347 BasicCegarLoop]: Found error trace [2018-04-05 16:19:33,184 INFO L355 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2018-04-05 16:19:33,184 INFO L408 AbstractCegarLoop]: === Iteration 16 === [__U_MULTI_fopenbsd_cstrncat_alloca_true_valid_memsafety_true_termination_i__cstrncatErr3RequiresViolation, __U_MULTI_fopenbsd_cstrncat_alloca_true_valid_memsafety_true_termination_i__cstrncatErr1RequiresViolation, __U_MULTI_fopenbsd_cstrncat_alloca_true_valid_memsafety_true_termination_i__cstrncatErr7RequiresViolation, __U_MULTI_fopenbsd_cstrncat_alloca_true_valid_memsafety_true_termination_i__cstrncatErr2RequiresViolation, __U_MULTI_fopenbsd_cstrncat_alloca_true_valid_memsafety_true_termination_i__cstrncatErr4RequiresViolation, __U_MULTI_fopenbsd_cstrncat_alloca_true_valid_memsafety_true_termination_i__cstrncatErr0RequiresViolation, __U_MULTI_fopenbsd_cstrncat_alloca_true_valid_memsafety_true_termination_i__cstrncatErr6RequiresViolation, __U_MULTI_fopenbsd_cstrncat_alloca_true_valid_memsafety_true_termination_i__cstrncatErr5RequiresViolation, mainErr3RequiresViolation, mainErr1RequiresViolation, mainErr2RequiresViolation, mainErr4EnsuresViolationMEMORY_LEAK, mainErr0RequiresViolation]=== [2018-04-05 16:19:33,184 INFO L82 PathProgramCache]: Analyzing trace with hash -829556717, now seen corresponding path program 1 times No working directory specified, using /storage/ultimate/releaseScripts/default/UAutomizer-linux/z3 Starting monitored process 17 with z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 17 with z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2018-04-05 16:19:33,215 INFO L68 tionRefinementEngine]: Using refinement strategy FixedRefinementStrategy [2018-04-05 16:19:33,237 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-04-05 16:19:33,240 INFO L270 TraceCheckSpWp]: Computing forward predicates... [2018-04-05 16:19:33,419 INFO L700 Elim1Store]: detected not equals via solver [2018-04-05 16:19:33,420 INFO L477 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 2 select indices, 2 select index equivalence classes, 2 disjoint index pairs (out of 1 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 20 treesize of output 21 [2018-04-05 16:19:33,444 INFO L700 Elim1Store]: detected not equals via solver [2018-04-05 16:19:33,445 INFO L477 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 2 select indices, 2 select index equivalence classes, 2 disjoint index pairs (out of 1 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 17 treesize of output 21 [2018-04-05 16:19:33,445 INFO L267 ElimStorePlain]: Start of recursive call 3: End of recursive call: and 1 xjuncts. [2018-04-05 16:19:33,518 INFO L267 ElimStorePlain]: Start of recursive call 2: 1 dim-1 vars, End of recursive call: and 1 xjuncts. [2018-04-05 16:19:33,566 INFO L267 ElimStorePlain]: Start of recursive call 1: 2 dim-0 vars, 1 dim-1 vars, End of recursive call: 2 dim-0 vars, and 1 xjuncts. [2018-04-05 16:19:33,566 INFO L202 ElimStorePlain]: Needed 3 recursive calls to eliminate 3 variables, input treesize:23, output treesize:15 [2018-04-05 16:19:33,709 WARN L1033 $PredicateComparison]: unable to prove that (exists ((|main_#t~malloc11.base| Int)) (let ((.cse0 (store |c_old(#valid)| |main_#t~malloc11.base| 1))) (and (= 0 (select |c_old(#valid)| |main_#t~malloc11.base|)) (= |c_#valid| (store (store .cse0 |c_main_#t~malloc12.base| 1) |main_#t~malloc11.base| 0)) (= (select .cse0 |c_main_#t~malloc12.base|) 0)))) is different from true [2018-04-05 16:19:33,719 WARN L1033 $PredicateComparison]: unable to prove that (exists ((|main_#t~malloc11.base| Int) (|main_#t~malloc12.base| Int)) (let ((.cse0 (store |c_old(#valid)| |main_#t~malloc11.base| 1))) (and (= |c_#valid| (store (store (store .cse0 |main_#t~malloc12.base| 1) |main_#t~malloc11.base| 0) |main_#t~malloc12.base| 0)) (= 0 (select |c_old(#valid)| |main_#t~malloc11.base|)) (= (select .cse0 |main_#t~malloc12.base|) 0)))) is different from true [2018-04-05 16:19:33,728 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-04-05 16:19:33,728 INFO L314 TraceCheckSpWp]: Computing backward predicates... [2018-04-05 16:19:33,870 WARN L1011 $PredicateComparison]: unable to prove that (forall ((|v_main_#t~malloc12.base_21| Int)) (or (= |c_old(#valid)| (store (store (store |c_#valid| |v_main_#t~malloc12.base_21| 1) |c_main_#t~malloc11.base| 0) |v_main_#t~malloc12.base_21| 0)) (not (= 0 (select |c_#valid| |v_main_#t~malloc12.base_21|))))) is different from false [2018-04-05 16:19:33,890 WARN L1011 $PredicateComparison]: unable to prove that (forall ((|v_main_#t~malloc11.base_20| Int) (|v_main_#t~malloc12.base_21| Int)) (let ((.cse0 (store |c_#valid| |v_main_#t~malloc11.base_20| 1))) (or (not (= (select .cse0 |v_main_#t~malloc12.base_21|) 0)) (not (= 0 (select |c_#valid| |v_main_#t~malloc11.base_20|))) (= (store (store (store .cse0 |v_main_#t~malloc12.base_21| 1) |v_main_#t~malloc11.base_20| 0) |v_main_#t~malloc12.base_21| 0) |c_old(#valid)|)))) is different from false [2018-04-05 16:19:33,951 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-04-05 16:19:34,027 INFO L320 seRefinementStrategy]: Constructing automaton from 2 perfect and 0 imperfect interpolant sequences. [2018-04-05 16:19:34,027 INFO L335 seRefinementStrategy]: Number of different interpolants: perfect sequences [7, 6] imperfect sequences [] total 11 [2018-04-05 16:19:34,028 INFO L442 AbstractCegarLoop]: Interpolant automaton has 12 states [2018-04-05 16:19:34,028 INFO L132 InterpolantAutomaton]: Constructing interpolant automaton starting with 12 interpolants. [2018-04-05 16:19:34,028 INFO L133 InterpolantAutomaton]: CoverageRelationStatistics Valid=23, Invalid=45, Unknown=4, NotChecked=60, Total=132 [2018-04-05 16:19:34,028 INFO L87 Difference]: Start difference. First operand 148 states and 163 transitions. Second operand 12 states. [2018-04-05 16:19:34,080 WARN L1011 $PredicateComparison]: unable to prove that (and (= |c_#valid| |c_old(#valid)|) (forall ((|v_main_#t~malloc11.base_20| Int) (|v_main_#t~malloc12.base_21| Int)) (let ((.cse0 (store |c_#valid| |v_main_#t~malloc11.base_20| 1))) (or (not (= (select .cse0 |v_main_#t~malloc12.base_21|) 0)) (not (= 0 (select |c_#valid| |v_main_#t~malloc11.base_20|))) (= (store (store (store .cse0 |v_main_#t~malloc12.base_21| 1) |v_main_#t~malloc11.base_20| 0) |v_main_#t~malloc12.base_21| 0) |c_old(#valid)|))))) is different from false [2018-04-05 16:19:35,965 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-04-05 16:19:35,965 INFO L93 Difference]: Finished difference Result 154 states and 163 transitions. [2018-04-05 16:19:35,968 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 11 states. [2018-04-05 16:19:35,969 INFO L78 Accepts]: Start accepts. Automaton has 12 states. Word has length 42 [2018-04-05 16:19:35,969 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-04-05 16:19:35,970 INFO L225 Difference]: With dead ends: 154 [2018-04-05 16:19:35,970 INFO L226 Difference]: Without dead ends: 140 [2018-04-05 16:19:35,971 INFO L567 BasicCegarLoop]: 0 DeclaredPredicates, 91 GetRequests, 73 SyntacticMatches, 2 SemanticMatches, 16 ConstructedPredicates, 5 IntricatePredicates, 0 DeprecatedPredicates, 12 ImplicationChecksByTransitivity, 0.7s TimeCoverageRelationStatistics Valid=45, Invalid=125, Unknown=6, NotChecked=130, Total=306 [2018-04-05 16:19:35,971 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 140 states. [2018-04-05 16:19:36,005 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 140 to 79. [2018-04-05 16:19:36,005 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 79 states. [2018-04-05 16:19:36,019 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 79 states to 79 states and 83 transitions. [2018-04-05 16:19:36,019 INFO L78 Accepts]: Start accepts. Automaton has 79 states and 83 transitions. Word has length 42 [2018-04-05 16:19:36,020 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-04-05 16:19:36,020 INFO L459 AbstractCegarLoop]: Abstraction has 79 states and 83 transitions. [2018-04-05 16:19:36,020 INFO L460 AbstractCegarLoop]: Interpolant automaton has 12 states. [2018-04-05 16:19:36,020 INFO L276 IsEmpty]: Start isEmpty. Operand 79 states and 83 transitions. [2018-04-05 16:19:36,020 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 49 [2018-04-05 16:19:36,021 INFO L347 BasicCegarLoop]: Found error trace [2018-04-05 16:19:36,021 INFO L355 BasicCegarLoop]: trace histogram [3, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2018-04-05 16:19:36,021 INFO L408 AbstractCegarLoop]: === Iteration 17 === [__U_MULTI_fopenbsd_cstrncat_alloca_true_valid_memsafety_true_termination_i__cstrncatErr3RequiresViolation, __U_MULTI_fopenbsd_cstrncat_alloca_true_valid_memsafety_true_termination_i__cstrncatErr1RequiresViolation, __U_MULTI_fopenbsd_cstrncat_alloca_true_valid_memsafety_true_termination_i__cstrncatErr7RequiresViolation, __U_MULTI_fopenbsd_cstrncat_alloca_true_valid_memsafety_true_termination_i__cstrncatErr2RequiresViolation, __U_MULTI_fopenbsd_cstrncat_alloca_true_valid_memsafety_true_termination_i__cstrncatErr4RequiresViolation, __U_MULTI_fopenbsd_cstrncat_alloca_true_valid_memsafety_true_termination_i__cstrncatErr0RequiresViolation, __U_MULTI_fopenbsd_cstrncat_alloca_true_valid_memsafety_true_termination_i__cstrncatErr6RequiresViolation, __U_MULTI_fopenbsd_cstrncat_alloca_true_valid_memsafety_true_termination_i__cstrncatErr5RequiresViolation, mainErr3RequiresViolation, mainErr1RequiresViolation, mainErr2RequiresViolation, mainErr4EnsuresViolationMEMORY_LEAK, mainErr0RequiresViolation]=== [2018-04-05 16:19:36,021 INFO L82 PathProgramCache]: Analyzing trace with hash -1083216796, now seen corresponding path program 2 times No working directory specified, using /storage/ultimate/releaseScripts/default/UAutomizer-linux/z3 Starting monitored process 18 with z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 18 with z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2018-04-05 16:19:36,063 INFO L68 tionRefinementEngine]: Using refinement strategy FixedRefinementStrategy [2018-04-05 16:19:36,130 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-04-05 16:19:36,142 INFO L270 TraceCheckSpWp]: Computing forward predicates... [2018-04-05 16:19:36,216 INFO L477 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 6 treesize of output 5 [2018-04-05 16:19:36,217 INFO L267 ElimStorePlain]: Start of recursive call 2: End of recursive call: and 1 xjuncts. [2018-04-05 16:19:36,242 INFO L267 ElimStorePlain]: Start of recursive call 1: 1 dim-1 vars, End of recursive call: and 1 xjuncts. [2018-04-05 16:19:36,242 INFO L202 ElimStorePlain]: Needed 2 recursive calls to eliminate 1 variables, input treesize:15, output treesize:14 [2018-04-05 16:19:36,366 INFO L700 Elim1Store]: detected not equals via solver [2018-04-05 16:19:36,371 INFO L700 Elim1Store]: detected not equals via solver [2018-04-05 16:19:36,379 INFO L477 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 2 select indices, 2 select index equivalence classes, 2 disjoint index pairs (out of 1 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 11 treesize of output 4 [2018-04-05 16:19:36,380 INFO L267 ElimStorePlain]: Start of recursive call 2: End of recursive call: and 1 xjuncts. [2018-04-05 16:19:36,413 INFO L267 ElimStorePlain]: Start of recursive call 1: 1 dim-1 vars, End of recursive call: and 1 xjuncts. [2018-04-05 16:19:36,414 INFO L202 ElimStorePlain]: Needed 2 recursive calls to eliminate 1 variables, input treesize:19, output treesize:13 [2018-04-05 16:19:36,626 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 17 treesize of output 14 [2018-04-05 16:19:36,629 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 14 treesize of output 13 [2018-04-05 16:19:36,630 INFO L267 ElimStorePlain]: Start of recursive call 3: End of recursive call: and 1 xjuncts. [2018-04-05 16:19:36,651 INFO L267 ElimStorePlain]: Start of recursive call 2: 1 dim-1 vars, End of recursive call: and 1 xjuncts. [2018-04-05 16:19:36,695 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. [2018-04-05 16:19:36,695 INFO L202 ElimStorePlain]: Needed 3 recursive calls to eliminate 3 variables, input treesize:39, output treesize:35 [2018-04-05 16:19:36,867 INFO L477 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 2 select indices, 2 select index equivalence classes, 1 disjoint index pairs (out of 1 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 28 treesize of output 29 [2018-04-05 16:19:36,874 INFO L477 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 11 treesize of output 10 [2018-04-05 16:19:36,875 INFO L267 ElimStorePlain]: Start of recursive call 3: End of recursive call: and 1 xjuncts. [2018-04-05 16:19:36,915 INFO L267 ElimStorePlain]: Start of recursive call 2: 1 dim-1 vars, End of recursive call: and 1 xjuncts. [2018-04-05 16:19:36,986 INFO L267 ElimStorePlain]: Start of recursive call 1: 5 dim-0 vars, 1 dim-2 vars, End of recursive call: 5 dim-0 vars, and 1 xjuncts. [2018-04-05 16:19:36,987 INFO L202 ElimStorePlain]: Needed 3 recursive calls to eliminate 6 variables, input treesize:49, output treesize:45 [2018-04-05 16:19:38,333 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 41 treesize of output 37 [2018-04-05 16:19:38,340 INFO L477 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 8 treesize of output 1 [2018-04-05 16:19:38,341 INFO L267 ElimStorePlain]: Start of recursive call 3: End of recursive call: and 1 xjuncts. [2018-04-05 16:19:38,389 INFO L700 Elim1Store]: detected not equals via solver [2018-04-05 16:19:38,426 INFO L477 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 3 select indices, 3 select index equivalence classes, 3 disjoint index pairs (out of 3 index pairs), introduced 1 new quantified variables, introduced 1 case distinctions, treesize of input 25 treesize of output 37 [2018-04-05 16:19:38,427 INFO L267 ElimStorePlain]: Start of recursive call 4: End of recursive call: and 2 xjuncts. [2018-04-05 16:19:38,509 INFO L267 ElimStorePlain]: Start of recursive call 2: 2 dim-1 vars, End of recursive call: and 2 xjuncts. [2018-04-05 16:19:38,618 INFO L267 ElimStorePlain]: Start of recursive call 1: 6 dim-0 vars, 1 dim-2 vars, End of recursive call: and 2 xjuncts. [2018-04-05 16:19:38,618 INFO L202 ElimStorePlain]: Needed 4 recursive calls to eliminate 7 variables, input treesize:70, output treesize:43 [2018-04-05 16:19:38,851 WARN L151 SmtUtils]: Spent 148ms on a formula simplification. DAG size of input: 18 DAG size of output 17 [2018-04-05 16:19:39,275 INFO L134 CoverageAnalysis]: Checked inductivity of 11 backedges. 2 proven. 9 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-04-05 16:19:39,275 INFO L314 TraceCheckSpWp]: Computing backward predicates... [2018-04-05 16:19:41,649 INFO L477 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 18 treesize of output 14 [2018-04-05 16:19:41,650 INFO L267 ElimStorePlain]: Start of recursive call 2: End of recursive call: and 1 xjuncts. [2018-04-05 16:19:41,727 INFO L477 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 0 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 35 treesize of output 31 [2018-04-05 16:19:41,843 WARN L151 SmtUtils]: Spent 114ms on a formula simplification. DAG size of input: 23 DAG size of output 19 [2018-04-05 16:19:41,855 INFO L682 Elim1Store]: detected equality via solver [2018-04-05 16:19:41,860 INFO L477 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 2 select indices, 2 select index equivalence classes, 5 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 0 case distinctions, treesize of input 13 treesize of output 12 [2018-04-05 16:19:41,860 INFO L267 ElimStorePlain]: Start of recursive call 4: End of recursive call: and 1 xjuncts. [2018-04-05 16:19:41,897 INFO L267 ElimStorePlain]: Start of recursive call 3: 1 dim-1 vars, End of recursive call: and 1 xjuncts. [2018-04-05 16:19:41,941 INFO L267 ElimStorePlain]: Start of recursive call 1: 2 dim-0 vars, 1 dim-1 vars, 1 dim-2 vars, End of recursive call: and 1 xjuncts. [2018-04-05 16:19:41,942 INFO L202 ElimStorePlain]: Needed 4 recursive calls to eliminate 4 variables, input treesize:58, output treesize:14 [2018-04-05 16:19:42,401 INFO L134 CoverageAnalysis]: Checked inductivity of 11 backedges. 0 proven. 11 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-04-05 16:19:42,479 INFO L320 seRefinementStrategy]: Constructing automaton from 0 perfect and 2 imperfect interpolant sequences. [2018-04-05 16:19:42,479 INFO L335 seRefinementStrategy]: Number of different interpolants: perfect sequences [] imperfect sequences [20, 16] total 34 [2018-04-05 16:19:42,480 INFO L442 AbstractCegarLoop]: Interpolant automaton has 35 states [2018-04-05 16:19:42,480 INFO L132 InterpolantAutomaton]: Constructing interpolant automaton starting with 35 interpolants. [2018-04-05 16:19:42,481 INFO L133 InterpolantAutomaton]: CoverageRelationStatistics Valid=126, Invalid=1064, Unknown=0, NotChecked=0, Total=1190 [2018-04-05 16:19:42,481 INFO L87 Difference]: Start difference. First operand 79 states and 83 transitions. Second operand 35 states. [2018-04-05 16:19:45,051 WARN L148 SmtUtils]: Spent 124ms on a formula simplification that was a NOOP. DAG size: 65 [2018-04-05 16:19:45,851 WARN L151 SmtUtils]: Spent 135ms on a formula simplification. DAG size of input: 72 DAG size of output 62 [2018-04-05 16:19:46,158 WARN L148 SmtUtils]: Spent 113ms on a formula simplification that was a NOOP. DAG size: 82 [2018-04-05 16:19:58,259 WARN L151 SmtUtils]: Spent 4433ms on a formula simplification. DAG size of input: 83 DAG size of output 69 [2018-04-05 16:20:04,119 WARN L151 SmtUtils]: Spent 4325ms on a formula simplification. DAG size of input: 79 DAG size of output 71 [2018-04-05 16:20:06,532 WARN L151 SmtUtils]: Spent 228ms on a formula simplification. DAG size of input: 77 DAG size of output 73 [2018-04-05 16:20:07,190 WARN L151 SmtUtils]: Spent 431ms on a formula simplification. DAG size of input: 97 DAG size of output 90 [2018-04-05 16:20:07,607 WARN L151 SmtUtils]: Spent 245ms on a formula simplification. DAG size of input: 91 DAG size of output 85 [2018-04-05 16:20:08,015 WARN L151 SmtUtils]: Spent 176ms on a formula simplification. DAG size of input: 71 DAG size of output 68 [2018-04-05 16:20:08,501 WARN L151 SmtUtils]: Spent 211ms on a formula simplification. DAG size of input: 84 DAG size of output 74 [2018-04-05 16:20:09,202 WARN L151 SmtUtils]: Spent 404ms on a formula simplification. DAG size of input: 82 DAG size of output 76 [2018-04-05 16:20:09,712 WARN L151 SmtUtils]: Spent 234ms on a formula simplification. DAG size of input: 80 DAG size of output 74 [2018-04-05 16:20:10,185 WARN L151 SmtUtils]: Spent 289ms on a formula simplification. DAG size of input: 100 DAG size of output 91 [2018-04-05 16:20:10,736 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-04-05 16:20:10,736 INFO L93 Difference]: Finished difference Result 100 states and 105 transitions. [2018-04-05 16:20:10,737 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 32 states. [2018-04-05 16:20:10,737 INFO L78 Accepts]: Start accepts. Automaton has 35 states. Word has length 48 [2018-04-05 16:20:10,737 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-04-05 16:20:10,738 INFO L225 Difference]: With dead ends: 100 [2018-04-05 16:20:10,738 INFO L226 Difference]: Without dead ends: 99 [2018-04-05 16:20:10,739 INFO L567 BasicCegarLoop]: 0 DeclaredPredicates, 119 GetRequests, 60 SyntacticMatches, 2 SemanticMatches, 57 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 698 ImplicationChecksByTransitivity, 28.5s TimeCoverageRelationStatistics Valid=572, Invalid=2847, Unknown=3, NotChecked=0, Total=3422 [2018-04-05 16:20:10,739 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 99 states. [2018-04-05 16:20:10,750 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 99 to 69. [2018-04-05 16:20:10,750 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 69 states. [2018-04-05 16:20:10,751 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 69 states to 69 states and 72 transitions. [2018-04-05 16:20:10,751 INFO L78 Accepts]: Start accepts. Automaton has 69 states and 72 transitions. Word has length 48 [2018-04-05 16:20:10,751 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-04-05 16:20:10,752 INFO L459 AbstractCegarLoop]: Abstraction has 69 states and 72 transitions. [2018-04-05 16:20:10,756 INFO L460 AbstractCegarLoop]: Interpolant automaton has 35 states. [2018-04-05 16:20:10,756 INFO L276 IsEmpty]: Start isEmpty. Operand 69 states and 72 transitions. [2018-04-05 16:20:10,757 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 53 [2018-04-05 16:20:10,757 INFO L347 BasicCegarLoop]: Found error trace [2018-04-05 16:20:10,757 INFO L355 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2018-04-05 16:20:10,757 INFO L408 AbstractCegarLoop]: === Iteration 18 === [__U_MULTI_fopenbsd_cstrncat_alloca_true_valid_memsafety_true_termination_i__cstrncatErr3RequiresViolation, __U_MULTI_fopenbsd_cstrncat_alloca_true_valid_memsafety_true_termination_i__cstrncatErr1RequiresViolation, __U_MULTI_fopenbsd_cstrncat_alloca_true_valid_memsafety_true_termination_i__cstrncatErr7RequiresViolation, __U_MULTI_fopenbsd_cstrncat_alloca_true_valid_memsafety_true_termination_i__cstrncatErr2RequiresViolation, __U_MULTI_fopenbsd_cstrncat_alloca_true_valid_memsafety_true_termination_i__cstrncatErr4RequiresViolation, __U_MULTI_fopenbsd_cstrncat_alloca_true_valid_memsafety_true_termination_i__cstrncatErr0RequiresViolation, __U_MULTI_fopenbsd_cstrncat_alloca_true_valid_memsafety_true_termination_i__cstrncatErr6RequiresViolation, __U_MULTI_fopenbsd_cstrncat_alloca_true_valid_memsafety_true_termination_i__cstrncatErr5RequiresViolation, mainErr3RequiresViolation, mainErr1RequiresViolation, mainErr2RequiresViolation, mainErr4EnsuresViolationMEMORY_LEAK, mainErr0RequiresViolation]=== [2018-04-05 16:20:10,757 INFO L82 PathProgramCache]: Analyzing trace with hash -1366398051, now seen corresponding path program 1 times No working directory specified, using /storage/ultimate/releaseScripts/default/UAutomizer-linux/z3 Starting monitored process 19 with z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 19 with z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2018-04-05 16:20:10,779 INFO L68 tionRefinementEngine]: Using refinement strategy FixedRefinementStrategy [2018-04-05 16:20:10,819 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-04-05 16:20:10,822 INFO L270 TraceCheckSpWp]: Computing forward predicates... [2018-04-05 16:20:10,985 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-04-05 16:20:10,985 INFO L314 TraceCheckSpWp]: Computing backward predicates... [2018-04-05 16:20:11,014 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-04-05 16:20:11,123 INFO L320 seRefinementStrategy]: Constructing automaton from 2 perfect and 0 imperfect interpolant sequences. [2018-04-05 16:20:11,123 INFO L335 seRefinementStrategy]: Number of different interpolants: perfect sequences [6, 6] imperfect sequences [] total 6 [2018-04-05 16:20:11,124 INFO L442 AbstractCegarLoop]: Interpolant automaton has 7 states [2018-04-05 16:20:11,124 INFO L132 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2018-04-05 16:20:11,124 INFO L133 InterpolantAutomaton]: CoverageRelationStatistics Valid=11, Invalid=31, Unknown=0, NotChecked=0, Total=42 [2018-04-05 16:20:11,124 INFO L87 Difference]: Start difference. First operand 69 states and 72 transitions. Second operand 7 states. [2018-04-05 16:20:11,499 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-04-05 16:20:11,499 INFO L93 Difference]: Finished difference Result 71 states and 74 transitions. [2018-04-05 16:20:11,499 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2018-04-05 16:20:11,500 INFO L78 Accepts]: Start accepts. Automaton has 7 states. Word has length 52 [2018-04-05 16:20:11,500 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-04-05 16:20:11,501 INFO L225 Difference]: With dead ends: 71 [2018-04-05 16:20:11,501 INFO L226 Difference]: Without dead ends: 69 [2018-04-05 16:20:11,501 INFO L567 BasicCegarLoop]: 0 DeclaredPredicates, 106 GetRequests, 98 SyntacticMatches, 0 SemanticMatches, 8 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=29, Invalid=61, Unknown=0, NotChecked=0, Total=90 [2018-04-05 16:20:11,501 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 69 states. [2018-04-05 16:20:11,535 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 69 to 67. [2018-04-05 16:20:11,610 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 67 states. [2018-04-05 16:20:11,611 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 67 states to 67 states and 70 transitions. [2018-04-05 16:20:11,611 INFO L78 Accepts]: Start accepts. Automaton has 67 states and 70 transitions. Word has length 52 [2018-04-05 16:20:11,611 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-04-05 16:20:11,611 INFO L459 AbstractCegarLoop]: Abstraction has 67 states and 70 transitions. [2018-04-05 16:20:11,611 INFO L460 AbstractCegarLoop]: Interpolant automaton has 7 states. [2018-04-05 16:20:11,611 INFO L276 IsEmpty]: Start isEmpty. Operand 67 states and 70 transitions. [2018-04-05 16:20:11,612 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 53 [2018-04-05 16:20:11,612 INFO L347 BasicCegarLoop]: Found error trace [2018-04-05 16:20:11,612 INFO L355 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2018-04-05 16:20:11,612 INFO L408 AbstractCegarLoop]: === Iteration 19 === [__U_MULTI_fopenbsd_cstrncat_alloca_true_valid_memsafety_true_termination_i__cstrncatErr3RequiresViolation, __U_MULTI_fopenbsd_cstrncat_alloca_true_valid_memsafety_true_termination_i__cstrncatErr1RequiresViolation, __U_MULTI_fopenbsd_cstrncat_alloca_true_valid_memsafety_true_termination_i__cstrncatErr7RequiresViolation, __U_MULTI_fopenbsd_cstrncat_alloca_true_valid_memsafety_true_termination_i__cstrncatErr2RequiresViolation, __U_MULTI_fopenbsd_cstrncat_alloca_true_valid_memsafety_true_termination_i__cstrncatErr4RequiresViolation, __U_MULTI_fopenbsd_cstrncat_alloca_true_valid_memsafety_true_termination_i__cstrncatErr0RequiresViolation, __U_MULTI_fopenbsd_cstrncat_alloca_true_valid_memsafety_true_termination_i__cstrncatErr6RequiresViolation, __U_MULTI_fopenbsd_cstrncat_alloca_true_valid_memsafety_true_termination_i__cstrncatErr5RequiresViolation, mainErr3RequiresViolation, mainErr1RequiresViolation, mainErr2RequiresViolation, mainErr4EnsuresViolationMEMORY_LEAK, mainErr0RequiresViolation]=== [2018-04-05 16:20:11,613 INFO L82 PathProgramCache]: Analyzing trace with hash -1366398050, now seen corresponding path program 1 times No working directory specified, using /storage/ultimate/releaseScripts/default/UAutomizer-linux/z3 Starting monitored process 20 with z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 20 with z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2018-04-05 16:20:11,638 INFO L68 tionRefinementEngine]: Using refinement strategy FixedRefinementStrategy [2018-04-05 16:20:11,696 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-04-05 16:20:11,699 INFO L270 TraceCheckSpWp]: Computing forward predicates... [2018-04-05 16:20:11,841 INFO L477 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 6 treesize of output 5 [2018-04-05 16:20:11,842 INFO L267 ElimStorePlain]: Start of recursive call 2: End of recursive call: and 1 xjuncts. [2018-04-05 16:20:11,901 INFO L477 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 6 treesize of output 5 [2018-04-05 16:20:11,902 INFO L267 ElimStorePlain]: Start of recursive call 3: End of recursive call: and 1 xjuncts. [2018-04-05 16:20:11,948 INFO L267 ElimStorePlain]: Start of recursive call 1: 1 dim-0 vars, 2 dim-1 vars, End of recursive call: and 1 xjuncts. [2018-04-05 16:20:11,949 INFO L202 ElimStorePlain]: Needed 3 recursive calls to eliminate 3 variables, input treesize:24, output treesize:19 [2018-04-05 16:20:12,089 INFO L700 Elim1Store]: detected not equals via solver [2018-04-05 16:20:12,095 INFO L700 Elim1Store]: detected not equals via solver [2018-04-05 16:20:12,096 INFO L477 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 1 select indices, 1 select index equivalence classes, 2 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 14 treesize of output 23 [2018-04-05 16:20:12,096 INFO L267 ElimStorePlain]: Start of recursive call 2: End of recursive call: and 1 xjuncts. [2018-04-05 16:20:12,180 INFO L700 Elim1Store]: detected not equals via solver [2018-04-05 16:20:12,185 INFO L700 Elim1Store]: detected not equals via solver [2018-04-05 16:20:12,186 INFO L477 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 2 select indices, 2 select index equivalence classes, 2 disjoint index pairs (out of 1 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 11 treesize of output 4 [2018-04-05 16:20:12,186 INFO L267 ElimStorePlain]: Start of recursive call 3: End of recursive call: and 1 xjuncts. [2018-04-05 16:20:12,234 INFO L267 ElimStorePlain]: Start of recursive call 1: 1 dim-0 vars, 2 dim-1 vars, End of recursive call: and 1 xjuncts. [2018-04-05 16:20:12,235 INFO L202 ElimStorePlain]: Needed 3 recursive calls to eliminate 3 variables, input treesize:30, output treesize:18 [2018-04-05 16:20:12,861 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-04-05 16:20:12,862 INFO L314 TraceCheckSpWp]: Computing backward predicates... [2018-04-05 16:20:14,017 INFO L477 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 1 select indices, 1 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 10 treesize of output 3 [2018-04-05 16:20:14,018 INFO L267 ElimStorePlain]: Start of recursive call 2: End of recursive call: and 1 xjuncts. [2018-04-05 16:20:14,040 INFO L477 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 0 select indices, 0 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 11 treesize of output 15 [2018-04-05 16:20:14,107 WARN L307 Elim1Store]: Array PQE input equivalent to true [2018-04-05 16:20:14,107 INFO L267 ElimStorePlain]: Start of recursive call 4: End of recursive call: and 1 xjuncts. [2018-04-05 16:20:14,112 INFO L477 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 1 select indices, 1 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 12 treesize of output 3 [2018-04-05 16:20:14,113 INFO L267 ElimStorePlain]: Start of recursive call 5: End of recursive call: and 1 xjuncts. [2018-04-05 16:20:14,133 INFO L267 ElimStorePlain]: Start of recursive call 3: 1 dim-1 vars, End of recursive call: and 1 xjuncts. [2018-04-05 16:20:14,151 INFO L267 ElimStorePlain]: Start of recursive call 1: 2 dim-0 vars, 2 dim-1 vars, End of recursive call: and 1 xjuncts. [2018-04-05 16:20:14,152 INFO L202 ElimStorePlain]: Needed 5 recursive calls to eliminate 4 variables, input treesize:21, output treesize:3 [2018-04-05 16:20:14,506 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-04-05 16:20:14,585 INFO L320 seRefinementStrategy]: Constructing automaton from 2 perfect and 0 imperfect interpolant sequences. [2018-04-05 16:20:14,585 INFO L335 seRefinementStrategy]: Number of different interpolants: perfect sequences [13, 12] imperfect sequences [] total 23 [2018-04-05 16:20:14,586 INFO L442 AbstractCegarLoop]: Interpolant automaton has 24 states [2018-04-05 16:20:14,586 INFO L132 InterpolantAutomaton]: Constructing interpolant automaton starting with 24 interpolants. [2018-04-05 16:20:14,586 INFO L133 InterpolantAutomaton]: CoverageRelationStatistics Valid=63, Invalid=489, Unknown=0, NotChecked=0, Total=552 [2018-04-05 16:20:14,587 INFO L87 Difference]: Start difference. First operand 67 states and 70 transitions. Second operand 24 states. [2018-04-05 16:20:17,042 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-04-05 16:20:17,042 INFO L93 Difference]: Finished difference Result 104 states and 108 transitions. [2018-04-05 16:20:17,043 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 15 states. [2018-04-05 16:20:17,076 INFO L78 Accepts]: Start accepts. Automaton has 24 states. Word has length 52 [2018-04-05 16:20:17,076 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-04-05 16:20:17,077 INFO L225 Difference]: With dead ends: 104 [2018-04-05 16:20:17,077 INFO L226 Difference]: Without dead ends: 100 [2018-04-05 16:20:17,078 INFO L567 BasicCegarLoop]: 0 DeclaredPredicates, 113 GetRequests, 80 SyntacticMatches, 1 SemanticMatches, 32 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 186 ImplicationChecksByTransitivity, 3.4s TimeCoverageRelationStatistics Valid=173, Invalid=949, Unknown=0, NotChecked=0, Total=1122 [2018-04-05 16:20:17,078 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 100 states. [2018-04-05 16:20:17,104 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 100 to 90. [2018-04-05 16:20:17,104 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 90 states. [2018-04-05 16:20:17,105 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 90 states to 90 states and 95 transitions. [2018-04-05 16:20:17,105 INFO L78 Accepts]: Start accepts. Automaton has 90 states and 95 transitions. Word has length 52 [2018-04-05 16:20:17,105 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-04-05 16:20:17,106 INFO L459 AbstractCegarLoop]: Abstraction has 90 states and 95 transitions. [2018-04-05 16:20:17,106 INFO L460 AbstractCegarLoop]: Interpolant automaton has 24 states. [2018-04-05 16:20:17,106 INFO L276 IsEmpty]: Start isEmpty. Operand 90 states and 95 transitions. [2018-04-05 16:20:17,106 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 56 [2018-04-05 16:20:17,106 INFO L347 BasicCegarLoop]: Found error trace [2018-04-05 16:20:17,107 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2018-04-05 16:20:17,107 INFO L408 AbstractCegarLoop]: === Iteration 20 === [__U_MULTI_fopenbsd_cstrncat_alloca_true_valid_memsafety_true_termination_i__cstrncatErr3RequiresViolation, __U_MULTI_fopenbsd_cstrncat_alloca_true_valid_memsafety_true_termination_i__cstrncatErr1RequiresViolation, __U_MULTI_fopenbsd_cstrncat_alloca_true_valid_memsafety_true_termination_i__cstrncatErr7RequiresViolation, __U_MULTI_fopenbsd_cstrncat_alloca_true_valid_memsafety_true_termination_i__cstrncatErr2RequiresViolation, __U_MULTI_fopenbsd_cstrncat_alloca_true_valid_memsafety_true_termination_i__cstrncatErr4RequiresViolation, __U_MULTI_fopenbsd_cstrncat_alloca_true_valid_memsafety_true_termination_i__cstrncatErr0RequiresViolation, __U_MULTI_fopenbsd_cstrncat_alloca_true_valid_memsafety_true_termination_i__cstrncatErr6RequiresViolation, __U_MULTI_fopenbsd_cstrncat_alloca_true_valid_memsafety_true_termination_i__cstrncatErr5RequiresViolation, mainErr3RequiresViolation, mainErr1RequiresViolation, mainErr2RequiresViolation, mainErr4EnsuresViolationMEMORY_LEAK, mainErr0RequiresViolation]=== [2018-04-05 16:20:17,107 INFO L82 PathProgramCache]: Analyzing trace with hash 1423352212, now seen corresponding path program 1 times No working directory specified, using /storage/ultimate/releaseScripts/default/UAutomizer-linux/z3 Starting monitored process 21 with z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 21 with z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2018-04-05 16:20:17,128 INFO L68 tionRefinementEngine]: Using refinement strategy FixedRefinementStrategy [2018-04-05 16:20:17,167 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-04-05 16:20:17,171 INFO L270 TraceCheckSpWp]: Computing forward predicates... [2018-04-05 16:20:17,204 INFO L477 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 14 treesize of output 11 [2018-04-05 16:20:17,207 INFO L477 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 11 treesize of output 10 [2018-04-05 16:20:17,208 INFO L267 ElimStorePlain]: Start of recursive call 3: End of recursive call: and 1 xjuncts. [2018-04-05 16:20:17,231 INFO L267 ElimStorePlain]: Start of recursive call 2: 1 dim-1 vars, End of recursive call: and 1 xjuncts. [2018-04-05 16:20:17,261 INFO L267 ElimStorePlain]: Start of recursive call 1: 1 dim-0 vars, 1 dim-2 vars, End of recursive call: 1 dim-0 vars, and 1 xjuncts. [2018-04-05 16:20:17,262 INFO L202 ElimStorePlain]: Needed 3 recursive calls to eliminate 2 variables, input treesize:25, output treesize:21 [2018-04-05 16:20:17,617 INFO L477 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 0 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 20 treesize of output 16 [2018-04-05 16:20:17,655 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 16 treesize of output 13 [2018-04-05 16:20:17,656 INFO L267 ElimStorePlain]: Start of recursive call 3: End of recursive call: and 2 xjuncts. [2018-04-05 16:20:17,677 INFO L267 ElimStorePlain]: Start of recursive call 2: 1 dim-1 vars, End of recursive call: and 2 xjuncts. [2018-04-05 16:20:17,737 INFO L267 ElimStorePlain]: Start of recursive call 1: 2 dim-0 vars, 1 dim-2 vars, End of recursive call: and 2 xjuncts. [2018-04-05 16:20:17,738 INFO L202 ElimStorePlain]: Needed 3 recursive calls to eliminate 3 variables, input treesize:38, output treesize:29 [2018-04-05 16:20:17,964 WARN L151 SmtUtils]: Spent 172ms on a formula simplification. DAG size of input: 15 DAG size of output 15 [2018-04-05 16:20:18,204 INFO L134 CoverageAnalysis]: Checked inductivity of 4 backedges. 0 proven. 4 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-04-05 16:20:18,205 INFO L314 TraceCheckSpWp]: Computing backward predicates... [2018-04-05 16:20:19,401 INFO L477 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 16 treesize of output 12 [2018-04-05 16:20:19,402 INFO L267 ElimStorePlain]: Start of recursive call 2: End of recursive call: and 1 xjuncts. [2018-04-05 16:20:19,442 INFO L477 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 0 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 13 treesize of output 11 [2018-04-05 16:20:19,511 INFO L477 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 1 select indices, 1 select index equivalence classes, 2 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 5 treesize of output 3 [2018-04-05 16:20:19,512 INFO L267 ElimStorePlain]: Start of recursive call 4: End of recursive call: and 1 xjuncts. [2018-04-05 16:20:19,522 INFO L267 ElimStorePlain]: Start of recursive call 3: 1 dim-1 vars, End of recursive call: and 1 xjuncts. [2018-04-05 16:20:19,565 INFO L267 ElimStorePlain]: Start of recursive call 1: 3 dim-0 vars, 1 dim-1 vars, 1 dim-2 vars, End of recursive call: and 1 xjuncts. [2018-04-05 16:20:19,565 INFO L202 ElimStorePlain]: Needed 4 recursive calls to eliminate 5 variables, input treesize:35, output treesize:7 [2018-04-05 16:20:19,600 INFO L134 CoverageAnalysis]: Checked inductivity of 4 backedges. 0 proven. 4 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-04-05 16:20:19,651 INFO L320 seRefinementStrategy]: Constructing automaton from 0 perfect and 2 imperfect interpolant sequences. [2018-04-05 16:20:19,651 INFO L335 seRefinementStrategy]: Number of different interpolants: perfect sequences [] imperfect sequences [11, 11] total 20 [2018-04-05 16:20:19,652 INFO L442 AbstractCegarLoop]: Interpolant automaton has 21 states [2018-04-05 16:20:19,652 INFO L132 InterpolantAutomaton]: Constructing interpolant automaton starting with 21 interpolants. [2018-04-05 16:20:19,652 INFO L133 InterpolantAutomaton]: CoverageRelationStatistics Valid=55, Invalid=365, Unknown=0, NotChecked=0, Total=420 [2018-04-05 16:20:19,653 INFO L87 Difference]: Start difference. First operand 90 states and 95 transitions. Second operand 21 states. [2018-04-05 16:20:20,603 WARN L151 SmtUtils]: Spent 152ms on a formula simplification. DAG size of input: 59 DAG size of output 56 [2018-04-05 16:20:21,006 WARN L151 SmtUtils]: Spent 177ms on a formula simplification. DAG size of input: 62 DAG size of output 57 [2018-04-05 16:20:21,431 WARN L151 SmtUtils]: Spent 309ms on a formula simplification. DAG size of input: 34 DAG size of output 31 [2018-04-05 16:20:21,642 WARN L151 SmtUtils]: Spent 115ms on a formula simplification. DAG size of input: 25 DAG size of output 24 [2018-04-05 16:20:22,077 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-04-05 16:20:22,099 INFO L93 Difference]: Finished difference Result 114 states and 119 transitions. [2018-04-05 16:20:22,099 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 16 states. [2018-04-05 16:20:22,099 INFO L78 Accepts]: Start accepts. Automaton has 21 states. Word has length 55 [2018-04-05 16:20:22,100 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-04-05 16:20:22,100 INFO L225 Difference]: With dead ends: 114 [2018-04-05 16:20:22,101 INFO L226 Difference]: Without dead ends: 113 [2018-04-05 16:20:22,101 INFO L567 BasicCegarLoop]: 0 DeclaredPredicates, 118 GetRequests, 89 SyntacticMatches, 1 SemanticMatches, 28 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 100 ImplicationChecksByTransitivity, 3.3s TimeCoverageRelationStatistics Valid=137, Invalid=733, Unknown=0, NotChecked=0, Total=870 [2018-04-05 16:20:22,101 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 113 states. [2018-04-05 16:20:22,122 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 113 to 105. [2018-04-05 16:20:22,127 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 105 states. [2018-04-05 16:20:22,128 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 105 states to 105 states and 110 transitions. [2018-04-05 16:20:22,128 INFO L78 Accepts]: Start accepts. Automaton has 105 states and 110 transitions. Word has length 55 [2018-04-05 16:20:22,128 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-04-05 16:20:22,128 INFO L459 AbstractCegarLoop]: Abstraction has 105 states and 110 transitions. [2018-04-05 16:20:22,128 INFO L460 AbstractCegarLoop]: Interpolant automaton has 21 states. [2018-04-05 16:20:22,129 INFO L276 IsEmpty]: Start isEmpty. Operand 105 states and 110 transitions. [2018-04-05 16:20:22,129 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 60 [2018-04-05 16:20:22,129 INFO L347 BasicCegarLoop]: Found error trace [2018-04-05 16:20:22,129 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2018-04-05 16:20:22,130 INFO L408 AbstractCegarLoop]: === Iteration 21 === [__U_MULTI_fopenbsd_cstrncat_alloca_true_valid_memsafety_true_termination_i__cstrncatErr3RequiresViolation, __U_MULTI_fopenbsd_cstrncat_alloca_true_valid_memsafety_true_termination_i__cstrncatErr1RequiresViolation, __U_MULTI_fopenbsd_cstrncat_alloca_true_valid_memsafety_true_termination_i__cstrncatErr7RequiresViolation, __U_MULTI_fopenbsd_cstrncat_alloca_true_valid_memsafety_true_termination_i__cstrncatErr2RequiresViolation, __U_MULTI_fopenbsd_cstrncat_alloca_true_valid_memsafety_true_termination_i__cstrncatErr4RequiresViolation, __U_MULTI_fopenbsd_cstrncat_alloca_true_valid_memsafety_true_termination_i__cstrncatErr0RequiresViolation, __U_MULTI_fopenbsd_cstrncat_alloca_true_valid_memsafety_true_termination_i__cstrncatErr6RequiresViolation, __U_MULTI_fopenbsd_cstrncat_alloca_true_valid_memsafety_true_termination_i__cstrncatErr5RequiresViolation, mainErr3RequiresViolation, mainErr1RequiresViolation, mainErr2RequiresViolation, mainErr4EnsuresViolationMEMORY_LEAK, mainErr0RequiresViolation]=== [2018-04-05 16:20:22,130 INFO L82 PathProgramCache]: Analyzing trace with hash 1450268478, now seen corresponding path program 1 times No working directory specified, using /storage/ultimate/releaseScripts/default/UAutomizer-linux/z3 Starting monitored process 22 with z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 22 with z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2018-04-05 16:20:22,158 INFO L68 tionRefinementEngine]: Using refinement strategy FixedRefinementStrategy [2018-04-05 16:20:22,213 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-04-05 16:20:22,222 INFO L270 TraceCheckSpWp]: Computing forward predicates... [2018-04-05 16:20:22,320 INFO L477 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 6 treesize of output 5 [2018-04-05 16:20:22,321 INFO L267 ElimStorePlain]: Start of recursive call 2: End of recursive call: and 1 xjuncts. [2018-04-05 16:20:22,389 INFO L477 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 6 treesize of output 5 [2018-04-05 16:20:22,390 INFO L267 ElimStorePlain]: Start of recursive call 3: End of recursive call: and 1 xjuncts. [2018-04-05 16:20:22,443 INFO L267 ElimStorePlain]: Start of recursive call 1: 1 dim-0 vars, 2 dim-1 vars, End of recursive call: and 1 xjuncts. [2018-04-05 16:20:22,444 INFO L202 ElimStorePlain]: Needed 3 recursive calls to eliminate 3 variables, input treesize:24, output treesize:19 [2018-04-05 16:20:22,617 INFO L700 Elim1Store]: detected not equals via solver [2018-04-05 16:20:22,626 INFO L700 Elim1Store]: detected not equals via solver [2018-04-05 16:20:22,627 INFO L477 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 1 select indices, 1 select index equivalence classes, 2 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 14 treesize of output 23 [2018-04-05 16:20:22,627 INFO L267 ElimStorePlain]: Start of recursive call 2: End of recursive call: and 1 xjuncts. [2018-04-05 16:20:22,708 INFO L700 Elim1Store]: detected not equals via solver [2018-04-05 16:20:22,713 INFO L700 Elim1Store]: detected not equals via solver [2018-04-05 16:20:22,714 INFO L477 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 2 select indices, 2 select index equivalence classes, 2 disjoint index pairs (out of 1 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 11 treesize of output 4 [2018-04-05 16:20:22,714 INFO L267 ElimStorePlain]: Start of recursive call 3: End of recursive call: and 1 xjuncts. [2018-04-05 16:20:22,752 INFO L267 ElimStorePlain]: Start of recursive call 1: 2 dim-1 vars, End of recursive call: and 1 xjuncts. [2018-04-05 16:20:22,752 INFO L202 ElimStorePlain]: Needed 3 recursive calls to eliminate 2 variables, input treesize:30, output treesize:19 [2018-04-05 16:20:22,901 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 [2018-04-05 16:20:22,904 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 [2018-04-05 16:20:22,905 INFO L267 ElimStorePlain]: Start of recursive call 3: End of recursive call: and 1 xjuncts. [2018-04-05 16:20:22,912 INFO L267 ElimStorePlain]: Start of recursive call 2: 1 dim-1 vars, End of recursive call: and 1 xjuncts. [2018-04-05 16:20:22,943 INFO L267 ElimStorePlain]: Start of recursive call 1: 1 dim-2 vars, End of recursive call: and 1 xjuncts. [2018-04-05 16:20:22,943 INFO L202 ElimStorePlain]: Needed 3 recursive calls to eliminate 1 variables, input treesize:34, output treesize:30 [2018-04-05 16:20:24,133 INFO L477 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 0 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 20 treesize of output 16 [2018-04-05 16:20:24,182 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 16 treesize of output 13 [2018-04-05 16:20:24,183 INFO L267 ElimStorePlain]: Start of recursive call 3: End of recursive call: and 2 xjuncts. [2018-04-05 16:20:24,212 INFO L267 ElimStorePlain]: Start of recursive call 2: 1 dim-1 vars, End of recursive call: and 2 xjuncts. [2018-04-05 16:20:24,266 INFO L267 ElimStorePlain]: Start of recursive call 1: 2 dim-0 vars, 1 dim-2 vars, End of recursive call: 3 dim-0 vars, and 2 xjuncts. [2018-04-05 16:20:24,266 INFO L202 ElimStorePlain]: Needed 3 recursive calls to eliminate 3 variables, input treesize:40, output treesize:55 [2018-04-05 16:20:24,937 INFO L134 CoverageAnalysis]: Checked inductivity of 3 backedges. 0 proven. 3 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-04-05 16:20:24,937 INFO L314 TraceCheckSpWp]: Computing backward predicates... [2018-04-05 16:20:27,848 INFO L477 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 0 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 13 treesize of output 11 [2018-04-05 16:20:27,920 INFO L477 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 1 select indices, 1 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 5 treesize of output 3 [2018-04-05 16:20:27,920 INFO L267 ElimStorePlain]: Start of recursive call 3: End of recursive call: and 1 xjuncts. [2018-04-05 16:20:27,933 INFO L267 ElimStorePlain]: Start of recursive call 2: 1 dim-1 vars, End of recursive call: and 1 xjuncts. [2018-04-05 16:20:27,961 INFO L267 ElimStorePlain]: Start of recursive call 1: 1 dim-0 vars, 1 dim-2 vars, End of recursive call: and 1 xjuncts. [2018-04-05 16:20:27,962 INFO L202 ElimStorePlain]: Needed 3 recursive calls to eliminate 2 variables, input treesize:24, output treesize:14 [2018-04-05 16:20:28,702 INFO L477 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 1 select indices, 1 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 10 treesize of output 3 [2018-04-05 16:20:28,703 INFO L267 ElimStorePlain]: Start of recursive call 2: End of recursive call: and 1 xjuncts. [2018-04-05 16:20:28,740 INFO L477 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 0 select indices, 0 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 11 treesize of output 15 [2018-04-05 16:20:28,802 WARN L307 Elim1Store]: Array PQE input equivalent to true [2018-04-05 16:20:28,802 INFO L267 ElimStorePlain]: Start of recursive call 4: End of recursive call: and 1 xjuncts. [2018-04-05 16:20:28,809 INFO L477 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 1 select indices, 1 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 12 treesize of output 3 [2018-04-05 16:20:28,810 INFO L267 ElimStorePlain]: Start of recursive call 5: End of recursive call: and 1 xjuncts. [2018-04-05 16:20:28,826 INFO L267 ElimStorePlain]: Start of recursive call 3: 1 dim-1 vars, End of recursive call: and 1 xjuncts. [2018-04-05 16:20:28,858 INFO L267 ElimStorePlain]: Start of recursive call 1: 2 dim-0 vars, 2 dim-1 vars, End of recursive call: and 1 xjuncts. [2018-04-05 16:20:28,859 INFO L202 ElimStorePlain]: Needed 5 recursive calls to eliminate 4 variables, input treesize:24, output treesize:7 [2018-04-05 16:20:29,562 INFO L134 CoverageAnalysis]: Checked inductivity of 3 backedges. 0 proven. 3 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-04-05 16:20:29,611 INFO L320 seRefinementStrategy]: Constructing automaton from 0 perfect and 2 imperfect interpolant sequences. [2018-04-05 16:20:29,612 INFO L335 seRefinementStrategy]: Number of different interpolants: perfect sequences [] imperfect sequences [22, 21] total 41 [2018-04-05 16:20:29,612 INFO L442 AbstractCegarLoop]: Interpolant automaton has 42 states [2018-04-05 16:20:29,612 INFO L132 InterpolantAutomaton]: Constructing interpolant automaton starting with 42 interpolants. [2018-04-05 16:20:29,613 INFO L133 InterpolantAutomaton]: CoverageRelationStatistics Valid=127, Invalid=1595, Unknown=0, NotChecked=0, Total=1722 [2018-04-05 16:20:29,613 INFO L87 Difference]: Start difference. First operand 105 states and 110 transitions. Second operand 42 states. [2018-04-05 16:20:30,151 WARN L148 SmtUtils]: Spent 188ms on a formula simplification that was a NOOP. DAG size: 42 [2018-04-05 16:20:30,608 WARN L148 SmtUtils]: Spent 200ms on a formula simplification that was a NOOP. DAG size: 40 [2018-04-05 16:20:31,443 WARN L148 SmtUtils]: Spent 202ms on a formula simplification that was a NOOP. DAG size: 40 [2018-04-05 16:20:32,067 WARN L148 SmtUtils]: Spent 129ms on a formula simplification that was a NOOP. DAG size: 38 [2018-04-05 16:20:33,511 WARN L151 SmtUtils]: Spent 194ms on a formula simplification. DAG size of input: 42 DAG size of output 40 [2018-04-05 16:20:34,868 WARN L148 SmtUtils]: Spent 115ms on a formula simplification that was a NOOP. DAG size: 50 [2018-04-05 16:20:35,209 WARN L148 SmtUtils]: Spent 129ms on a formula simplification that was a NOOP. DAG size: 51 [2018-04-05 16:20:35,578 WARN L148 SmtUtils]: Spent 181ms on a formula simplification that was a NOOP. DAG size: 57 [2018-04-05 16:20:35,953 WARN L148 SmtUtils]: Spent 153ms on a formula simplification that was a NOOP. DAG size: 56 [2018-04-05 16:20:36,269 WARN L148 SmtUtils]: Spent 120ms on a formula simplification that was a NOOP. DAG size: 50 [2018-04-05 16:20:36,602 WARN L151 SmtUtils]: Spent 214ms on a formula simplification. DAG size of input: 47 DAG size of output 41 [2018-04-05 16:20:37,200 WARN L151 SmtUtils]: Spent 260ms on a formula simplification. DAG size of input: 48 DAG size of output 42 [2018-04-05 16:20:37,667 WARN L148 SmtUtils]: Spent 150ms on a formula simplification that was a NOOP. DAG size: 60 [2018-04-05 16:20:38,139 WARN L151 SmtUtils]: Spent 247ms on a formula simplification. DAG size of input: 55 DAG size of output 49 [2018-04-05 16:20:38,478 WARN L148 SmtUtils]: Spent 111ms on a formula simplification that was a NOOP. DAG size: 50 [2018-04-05 16:20:38,927 WARN L151 SmtUtils]: Spent 215ms on a formula simplification. DAG size of input: 50 DAG size of output 49 [2018-04-05 16:20:39,437 WARN L151 SmtUtils]: Spent 337ms on a formula simplification. DAG size of input: 66 DAG size of output 57 [2018-04-05 16:20:39,822 WARN L151 SmtUtils]: Spent 224ms on a formula simplification. DAG size of input: 43 DAG size of output 42 [2018-04-05 16:20:40,706 WARN L151 SmtUtils]: Spent 444ms on a formula simplification. DAG size of input: 63 DAG size of output 54 [2018-04-05 16:20:41,059 WARN L148 SmtUtils]: Spent 170ms on a formula simplification that was a NOOP. DAG size: 51 [2018-04-05 16:20:41,353 WARN L148 SmtUtils]: Spent 171ms on a formula simplification that was a NOOP. DAG size: 45 [2018-04-05 16:20:41,780 WARN L148 SmtUtils]: Spent 161ms on a formula simplification that was a NOOP. DAG size: 53 [2018-04-05 16:20:42,227 WARN L148 SmtUtils]: Spent 165ms on a formula simplification that was a NOOP. DAG size: 53 [2018-04-05 16:20:42,526 WARN L148 SmtUtils]: Spent 159ms on a formula simplification that was a NOOP. DAG size: 45 [2018-04-05 16:20:43,437 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-04-05 16:20:43,477 INFO L93 Difference]: Finished difference Result 150 states and 157 transitions. [2018-04-05 16:20:43,477 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 40 states. [2018-04-05 16:20:43,477 INFO L78 Accepts]: Start accepts. Automaton has 42 states. Word has length 59 [2018-04-05 16:20:43,478 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-04-05 16:20:43,479 INFO L225 Difference]: With dead ends: 150 [2018-04-05 16:20:43,479 INFO L226 Difference]: Without dead ends: 146 [2018-04-05 16:20:43,480 INFO L567 BasicCegarLoop]: 0 DeclaredPredicates, 150 GetRequests, 76 SyntacticMatches, 1 SemanticMatches, 73 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1078 ImplicationChecksByTransitivity, 15.8s TimeCoverageRelationStatistics Valid=610, Invalid=4940, Unknown=0, NotChecked=0, Total=5550 [2018-04-05 16:20:43,481 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 146 states. [2018-04-05 16:20:43,507 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 146 to 112. [2018-04-05 16:20:43,507 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 112 states. [2018-04-05 16:20:43,508 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 112 states to 112 states and 118 transitions. [2018-04-05 16:20:43,509 INFO L78 Accepts]: Start accepts. Automaton has 112 states and 118 transitions. Word has length 59 [2018-04-05 16:20:43,509 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-04-05 16:20:43,509 INFO L459 AbstractCegarLoop]: Abstraction has 112 states and 118 transitions. [2018-04-05 16:20:43,509 INFO L460 AbstractCegarLoop]: Interpolant automaton has 42 states. [2018-04-05 16:20:43,509 INFO L276 IsEmpty]: Start isEmpty. Operand 112 states and 118 transitions. [2018-04-05 16:20:43,510 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 67 [2018-04-05 16:20:43,510 INFO L347 BasicCegarLoop]: Found error trace [2018-04-05 16:20:43,510 INFO L355 BasicCegarLoop]: trace histogram [3, 3, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2018-04-05 16:20:43,510 INFO L408 AbstractCegarLoop]: === Iteration 22 === [__U_MULTI_fopenbsd_cstrncat_alloca_true_valid_memsafety_true_termination_i__cstrncatErr3RequiresViolation, __U_MULTI_fopenbsd_cstrncat_alloca_true_valid_memsafety_true_termination_i__cstrncatErr1RequiresViolation, __U_MULTI_fopenbsd_cstrncat_alloca_true_valid_memsafety_true_termination_i__cstrncatErr7RequiresViolation, __U_MULTI_fopenbsd_cstrncat_alloca_true_valid_memsafety_true_termination_i__cstrncatErr2RequiresViolation, __U_MULTI_fopenbsd_cstrncat_alloca_true_valid_memsafety_true_termination_i__cstrncatErr4RequiresViolation, __U_MULTI_fopenbsd_cstrncat_alloca_true_valid_memsafety_true_termination_i__cstrncatErr0RequiresViolation, __U_MULTI_fopenbsd_cstrncat_alloca_true_valid_memsafety_true_termination_i__cstrncatErr6RequiresViolation, __U_MULTI_fopenbsd_cstrncat_alloca_true_valid_memsafety_true_termination_i__cstrncatErr5RequiresViolation, mainErr3RequiresViolation, mainErr1RequiresViolation, mainErr2RequiresViolation, mainErr4EnsuresViolationMEMORY_LEAK, mainErr0RequiresViolation]=== [2018-04-05 16:20:43,510 INFO L82 PathProgramCache]: Analyzing trace with hash 222042014, now seen corresponding path program 2 times No working directory specified, using /storage/ultimate/releaseScripts/default/UAutomizer-linux/z3 Starting monitored process 23 with z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 23 with z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2018-04-05 16:20:43,550 INFO L68 tionRefinementEngine]: Using refinement strategy FixedRefinementStrategy [2018-04-05 16:20:43,598 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-04-05 16:20:43,603 INFO L270 TraceCheckSpWp]: Computing forward predicates... [2018-04-05 16:20:43,701 INFO L477 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 6 treesize of output 5 [2018-04-05 16:20:43,702 INFO L267 ElimStorePlain]: Start of recursive call 2: End of recursive call: and 1 xjuncts. [2018-04-05 16:20:43,751 INFO L477 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 6 treesize of output 5 [2018-04-05 16:20:43,752 INFO L267 ElimStorePlain]: Start of recursive call 3: End of recursive call: and 1 xjuncts. [2018-04-05 16:20:43,804 INFO L267 ElimStorePlain]: Start of recursive call 1: 2 dim-1 vars, End of recursive call: and 1 xjuncts. [2018-04-05 16:20:43,805 INFO L202 ElimStorePlain]: Needed 3 recursive calls to eliminate 2 variables, input treesize:27, output treesize:25 [2018-04-05 16:20:43,985 INFO L700 Elim1Store]: detected not equals via solver [2018-04-05 16:20:43,993 INFO L700 Elim1Store]: detected not equals via solver [2018-04-05 16:20:43,994 INFO L477 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 1 select indices, 1 select index equivalence classes, 2 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 12 treesize of output 21 [2018-04-05 16:20:43,995 INFO L267 ElimStorePlain]: Start of recursive call 2: End of recursive call: and 1 xjuncts. [2018-04-05 16:20:44,083 INFO L700 Elim1Store]: detected not equals via solver [2018-04-05 16:20:44,089 INFO L700 Elim1Store]: detected not equals via solver [2018-04-05 16:20:44,090 INFO L477 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 2 select indices, 2 select index equivalence classes, 2 disjoint index pairs (out of 1 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 11 treesize of output 4 [2018-04-05 16:20:44,090 INFO L267 ElimStorePlain]: Start of recursive call 3: End of recursive call: and 1 xjuncts. [2018-04-05 16:20:44,147 INFO L267 ElimStorePlain]: Start of recursive call 1: 2 dim-1 vars, End of recursive call: and 1 xjuncts. [2018-04-05 16:20:44,147 INFO L202 ElimStorePlain]: Needed 3 recursive calls to eliminate 2 variables, input treesize:36, output treesize:25 [2018-04-05 16:20:44,350 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 19 treesize of output 16 [2018-04-05 16:20:44,356 INFO L477 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 16 treesize of output 15 [2018-04-05 16:20:44,357 INFO L267 ElimStorePlain]: Start of recursive call 3: End of recursive call: and 1 xjuncts. [2018-04-05 16:20:44,363 INFO L267 ElimStorePlain]: Start of recursive call 2: 1 dim-1 vars, End of recursive call: and 1 xjuncts. [2018-04-05 16:20:44,415 INFO L267 ElimStorePlain]: Start of recursive call 1: 1 dim-0 vars, 1 dim-2 vars, End of recursive call: 1 dim-0 vars, and 1 xjuncts. [2018-04-05 16:20:44,416 INFO L202 ElimStorePlain]: Needed 3 recursive calls to eliminate 2 variables, input treesize:41, output treesize:37 [2018-04-05 16:20:44,506 INFO L700 Elim1Store]: detected not equals via solver [2018-04-05 16:20:44,525 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 32 treesize of output 33 [2018-04-05 16:20:44,532 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 [2018-04-05 16:20:44,533 INFO L267 ElimStorePlain]: Start of recursive call 3: End of recursive call: and 1 xjuncts. [2018-04-05 16:20:44,564 INFO L267 ElimStorePlain]: Start of recursive call 2: 1 dim-1 vars, End of recursive call: and 1 xjuncts. [2018-04-05 16:20:44,646 INFO L267 ElimStorePlain]: Start of recursive call 1: 1 dim-0 vars, 1 dim-2 vars, End of recursive call: 1 dim-0 vars, and 1 xjuncts. [2018-04-05 16:20:44,647 INFO L202 ElimStorePlain]: Needed 3 recursive calls to eliminate 2 variables, input treesize:52, output treesize:48 [2018-04-05 16:20:45,055 WARN L148 SmtUtils]: Spent 206ms on a formula simplification that was a NOOP. DAG size: 29 [2018-04-05 16:20:47,063 INFO L700 Elim1Store]: detected not equals via solver [2018-04-05 16:20:47,073 INFO L477 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 0 stores, 2 select indices, 2 select index equivalence classes, 1 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 0 case distinctions, treesize of input 45 treesize of output 41 [2018-04-05 16:20:47,117 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 16 treesize of output 13 [2018-04-05 16:20:47,118 INFO L267 ElimStorePlain]: Start of recursive call 3: End of recursive call: and 2 xjuncts. [2018-04-05 16:20:47,177 INFO L477 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 2 select indices, 2 select index equivalence classes, 2 disjoint index pairs (out of 1 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 22 treesize of output 19 [2018-04-05 16:20:47,178 INFO L267 ElimStorePlain]: Start of recursive call 4: End of recursive call: and 1 xjuncts. [2018-04-05 16:20:47,210 INFO L267 ElimStorePlain]: Start of recursive call 2: 2 dim-1 vars, End of recursive call: and 2 xjuncts. [2018-04-05 16:20:47,329 INFO L267 ElimStorePlain]: Start of recursive call 1: 4 dim-0 vars, 1 dim-2 vars, End of recursive call: 6 dim-0 vars, and 2 xjuncts. [2018-04-05 16:20:47,329 INFO L202 ElimStorePlain]: Needed 4 recursive calls to eliminate 5 variables, input treesize:73, output treesize:128 [2018-04-05 16:20:47,823 WARN L151 SmtUtils]: Spent 331ms on a formula simplification. DAG size of input: 56 DAG size of output 35 [2018-04-05 16:20:48,432 INFO L134 CoverageAnalysis]: Checked inductivity of 13 backedges. 0 proven. 13 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-04-05 16:20:48,432 INFO L314 TraceCheckSpWp]: Computing backward predicates... [2018-04-05 16:20:51,394 WARN L148 SmtUtils]: Spent 109ms on a formula simplification that was a NOOP. DAG size: 19 [2018-04-05 16:20:54,749 INFO L477 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 2 new quantified variables, introduced 0 case distinctions, treesize of input 76 treesize of output 49 [2018-04-05 16:20:54,904 WARN L151 SmtUtils]: Spent 118ms on a formula simplification. DAG size of input: 36 DAG size of output 34 [2018-04-05 16:20:54,911 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 15 treesize of output 14 [2018-04-05 16:20:54,912 INFO L267 ElimStorePlain]: Start of recursive call 3: End of recursive call: and 1 xjuncts. [2018-04-05 16:20:55,019 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 37 treesize of output 39 [2018-04-05 16:20:55,266 WARN L151 SmtUtils]: Spent 245ms on a formula simplification. DAG size of input: 39 DAG size of output 36 [2018-04-05 16:20:55,312 INFO L477 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 3 select indices, 3 select index equivalence classes, 4 disjoint index pairs (out of 3 index pairs), introduced 2 new quantified variables, introduced 1 case distinctions, treesize of input 28 treesize of output 40 [2018-04-05 16:20:55,313 INFO L267 ElimStorePlain]: Start of recursive call 5: End of recursive call: and 2 xjuncts. [2018-04-05 16:20:55,420 INFO L477 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 1 select indices, 1 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 31 treesize of output 29 [2018-04-05 16:20:55,421 INFO L267 ElimStorePlain]: Start of recursive call 6: End of recursive call: and 1 xjuncts. [2018-04-05 16:20:55,502 INFO L477 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 2 select indices, 2 select index equivalence classes, 2 disjoint index pairs (out of 1 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 26 treesize of output 21 [2018-04-05 16:20:55,502 INFO L267 ElimStorePlain]: Start of recursive call 7: End of recursive call: and 1 xjuncts. [2018-04-05 16:20:55,573 INFO L267 ElimStorePlain]: Start of recursive call 4: 3 dim-1 vars, End of recursive call: and 2 xjuncts. [2018-04-05 16:20:55,704 INFO L267 ElimStorePlain]: Start of recursive call 2: 1 dim-1 vars, 1 dim-2 vars, End of recursive call: and 4 xjuncts. [2018-04-05 16:20:55,910 INFO L267 ElimStorePlain]: Start of recursive call 1: 2 dim-0 vars, 1 dim-2 vars, End of recursive call: and 2 xjuncts. [2018-04-05 16:20:55,910 INFO L202 ElimStorePlain]: Needed 7 recursive calls to eliminate 3 variables, input treesize:89, output treesize:100 [2018-04-05 16:20:56,636 WARN L151 SmtUtils]: Spent 340ms on a formula simplification. DAG size of input: 29 DAG size of output 25 [2018-04-05 16:20:57,111 WARN L148 SmtUtils]: Spent 122ms on a formula simplification that was a NOOP. DAG size: 41 [2018-04-05 16:20:57,551 WARN L148 SmtUtils]: Spent 104ms on a formula simplification that was a NOOP. DAG size: 41 [2018-04-05 16:20:57,793 WARN L151 SmtUtils]: Spent 230ms on a formula simplification. DAG size of input: 44 DAG size of output 42 [2018-04-05 16:20:57,802 INFO L477 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 0 select indices, 0 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 29 treesize of output 32 [2018-04-05 16:20:57,967 WARN L151 SmtUtils]: Spent 164ms on a formula simplification. DAG size of input: 26 DAG size of output 22 [2018-04-05 16:20:57,975 INFO L477 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 1 select indices, 1 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 12 treesize of output 3 [2018-04-05 16:20:57,976 INFO L267 ElimStorePlain]: Start of recursive call 3: End of recursive call: and 1 xjuncts. [2018-04-05 16:20:58,024 INFO L267 ElimStorePlain]: Start of recursive call 2: 1 dim-1 vars, End of recursive call: and 1 xjuncts. [2018-04-05 16:20:58,121 INFO L477 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 1 select indices, 1 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 29 treesize of output 23 [2018-04-05 16:20:58,122 INFO L267 ElimStorePlain]: Start of recursive call 4: End of recursive call: and 1 xjuncts. [2018-04-05 16:20:58,217 INFO L477 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 1 select indices, 1 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 21 treesize of output 15 [2018-04-05 16:20:58,218 INFO L267 ElimStorePlain]: Start of recursive call 5: End of recursive call: and 1 xjuncts. [2018-04-05 16:20:58,310 INFO L477 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 0 select indices, 0 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 23 treesize of output 26 [2018-04-05 16:20:58,416 WARN L151 SmtUtils]: Spent 104ms on a formula simplification. DAG size of input: 21 DAG size of output 17 [2018-04-05 16:20:58,421 INFO L477 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 1 select indices, 1 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 12 treesize of output 3 [2018-04-05 16:20:58,422 INFO L267 ElimStorePlain]: Start of recursive call 7: End of recursive call: and 1 xjuncts. [2018-04-05 16:20:58,458 INFO L267 ElimStorePlain]: Start of recursive call 6: 1 dim-1 vars, End of recursive call: and 1 xjuncts. [2018-04-05 16:20:58,556 INFO L267 ElimStorePlain]: Start of recursive call 1: 4 dim-0 vars, 4 dim-1 vars, End of recursive call: and 2 xjuncts. [2018-04-05 16:20:58,557 INFO L202 ElimStorePlain]: Needed 7 recursive calls to eliminate 8 variables, input treesize:72, output treesize:25 [2018-04-05 16:20:59,011 WARN L148 SmtUtils]: Spent 108ms on a formula simplification that was a NOOP. DAG size: 14 [2018-04-05 16:20:59,544 WARN L148 SmtUtils]: Spent 117ms on a formula simplification that was a NOOP. DAG size: 13 [2018-04-05 16:20:59,643 INFO L134 CoverageAnalysis]: Checked inductivity of 13 backedges. 0 proven. 13 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-04-05 16:20:59,706 INFO L320 seRefinementStrategy]: Constructing automaton from 0 perfect and 2 imperfect interpolant sequences. [2018-04-05 16:20:59,706 INFO L335 seRefinementStrategy]: Number of different interpolants: perfect sequences [] imperfect sequences [27, 26] total 51 [2018-04-05 16:20:59,707 INFO L442 AbstractCegarLoop]: Interpolant automaton has 52 states [2018-04-05 16:20:59,707 INFO L132 InterpolantAutomaton]: Constructing interpolant automaton starting with 52 interpolants. [2018-04-05 16:20:59,708 INFO L133 InterpolantAutomaton]: CoverageRelationStatistics Valid=189, Invalid=2463, Unknown=0, NotChecked=0, Total=2652 [2018-04-05 16:20:59,708 INFO L87 Difference]: Start difference. First operand 112 states and 118 transitions. Second operand 52 states. [2018-04-05 16:21:01,231 WARN L151 SmtUtils]: Spent 1063ms on a formula simplification. DAG size of input: 100 DAG size of output 98 [2018-04-05 16:21:02,482 WARN L151 SmtUtils]: Spent 716ms on a formula simplification. DAG size of input: 95 DAG size of output 93 [2018-04-05 16:21:03,367 WARN L151 SmtUtils]: Spent 338ms on a formula simplification. DAG size of input: 93 DAG size of output 74 [2018-04-05 16:21:04,408 WARN L151 SmtUtils]: Spent 316ms on a formula simplification. DAG size of input: 60 DAG size of output 46 [2018-04-05 16:21:06,337 WARN L148 SmtUtils]: Spent 184ms on a formula simplification that was a NOOP. DAG size: 42 [2018-04-05 16:21:06,934 WARN L151 SmtUtils]: Spent 266ms on a formula simplification. DAG size of input: 66 DAG size of output 48 [2018-04-05 16:21:07,733 WARN L148 SmtUtils]: Spent 122ms on a formula simplification that was a NOOP. DAG size: 54 [2018-04-05 16:21:08,145 WARN L148 SmtUtils]: Spent 106ms on a formula simplification that was a NOOP. DAG size: 65 [2018-04-05 16:21:08,720 WARN L148 SmtUtils]: Spent 155ms on a formula simplification that was a NOOP. DAG size: 77 [2018-04-05 16:21:09,383 WARN L148 SmtUtils]: Spent 184ms on a formula simplification that was a NOOP. DAG size: 78 [2018-04-05 16:21:09,929 WARN L148 SmtUtils]: Spent 212ms on a formula simplification that was a NOOP. DAG size: 90 [2018-04-05 16:21:10,989 WARN L151 SmtUtils]: Spent 515ms on a formula simplification. DAG size of input: 93 DAG size of output 91 [2018-04-05 16:21:11,540 WARN L148 SmtUtils]: Spent 193ms on a formula simplification that was a NOOP. DAG size: 71 [2018-04-05 16:21:12,157 WARN L151 SmtUtils]: Spent 325ms on a formula simplification. DAG size of input: 85 DAG size of output 66 [2018-04-05 16:21:13,049 WARN L148 SmtUtils]: Spent 216ms on a formula simplification that was a NOOP. DAG size: 74 [2018-04-05 16:21:14,027 WARN L151 SmtUtils]: Spent 602ms on a formula simplification. DAG size of input: 60 DAG size of output 57 [2018-04-05 16:21:14,478 WARN L148 SmtUtils]: Spent 147ms on a formula simplification that was a NOOP. DAG size: 76 [2018-04-05 16:21:15,056 WARN L148 SmtUtils]: Spent 151ms on a formula simplification that was a NOOP. DAG size: 74 [2018-04-05 16:21:15,772 WARN L148 SmtUtils]: Spent 229ms on a formula simplification that was a NOOP. DAG size: 89 [2018-04-05 16:21:17,085 WARN L151 SmtUtils]: Spent 832ms on a formula simplification. DAG size of input: 97 DAG size of output 95 [2018-04-05 16:21:17,850 WARN L151 SmtUtils]: Spent 379ms on a formula simplification. DAG size of input: 83 DAG size of output 80 [2018-04-05 16:21:18,659 WARN L151 SmtUtils]: Spent 419ms on a formula simplification. DAG size of input: 67 DAG size of output 64 [2018-04-05 16:21:19,227 WARN L148 SmtUtils]: Spent 311ms on a formula simplification that was a NOOP. DAG size: 76 [2018-04-05 16:21:19,964 WARN L151 SmtUtils]: Spent 288ms on a formula simplification. DAG size of input: 60 DAG size of output 58 [2018-04-05 16:21:20,363 WARN L148 SmtUtils]: Spent 119ms on a formula simplification that was a NOOP. DAG size: 57 [2018-04-05 16:21:20,752 WARN L148 SmtUtils]: Spent 167ms on a formula simplification that was a NOOP. DAG size: 63 [2018-04-05 16:21:21,064 WARN L148 SmtUtils]: Spent 103ms on a formula simplification that was a NOOP. DAG size: 49 [2018-04-05 16:21:21,710 WARN L151 SmtUtils]: Spent 339ms on a formula simplification. DAG size of input: 90 DAG size of output 86 [2018-04-05 16:21:22,182 WARN L148 SmtUtils]: Spent 140ms on a formula simplification that was a NOOP. DAG size: 25 [2018-04-05 16:21:22,823 WARN L151 SmtUtils]: Spent 353ms on a formula simplification. DAG size of input: 88 DAG size of output 84 [2018-04-05 16:21:24,208 WARN L151 SmtUtils]: Spent 467ms on a formula simplification. DAG size of input: 79 DAG size of output 78 [2018-04-05 16:21:25,538 WARN L151 SmtUtils]: Spent 855ms on a formula simplification. DAG size of input: 97 DAG size of output 93 [2018-04-05 16:21:26,341 WARN L148 SmtUtils]: Spent 186ms on a formula simplification that was a NOOP. DAG size: 68 [2018-04-05 16:21:27,217 WARN L151 SmtUtils]: Spent 428ms on a formula simplification. DAG size of input: 91 DAG size of output 90 [2018-04-05 16:21:27,817 WARN L148 SmtUtils]: Spent 127ms on a formula simplification that was a NOOP. DAG size: 58 [2018-04-05 16:21:28,758 WARN L151 SmtUtils]: Spent 477ms on a formula simplification. DAG size of input: 79 DAG size of output 78 [2018-04-05 16:21:29,964 WARN L151 SmtUtils]: Spent 437ms on a formula simplification. DAG size of input: 101 DAG size of output 94 [2018-04-05 16:21:30,485 WARN L151 SmtUtils]: Spent 322ms on a formula simplification. DAG size of input: 60 DAG size of output 58 [2018-04-05 16:21:31,098 WARN L151 SmtUtils]: Spent 285ms on a formula simplification. DAG size of input: 45 DAG size of output 42 [2018-04-05 16:21:31,718 WARN L151 SmtUtils]: Spent 358ms on a formula simplification. DAG size of input: 68 DAG size of output 64 [2018-04-05 16:21:32,671 WARN L151 SmtUtils]: Spent 332ms on a formula simplification. DAG size of input: 66 DAG size of output 64 [2018-04-05 16:21:34,207 WARN L151 SmtUtils]: Spent 512ms on a formula simplification. DAG size of input: 64 DAG size of output 60 [2018-04-05 16:21:35,734 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-04-05 16:21:35,734 INFO L93 Difference]: Finished difference Result 210 states and 221 transitions. [2018-04-05 16:21:35,737 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 64 states. [2018-04-05 16:21:35,738 INFO L78 Accepts]: Start accepts. Automaton has 52 states. Word has length 66 [2018-04-05 16:21:35,738 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-04-05 16:21:35,740 INFO L225 Difference]: With dead ends: 210 [2018-04-05 16:21:35,740 INFO L226 Difference]: Without dead ends: 204 [2018-04-05 16:21:35,743 INFO L567 BasicCegarLoop]: 0 DeclaredPredicates, 185 GetRequests, 80 SyntacticMatches, 1 SemanticMatches, 104 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 2637 ImplicationChecksByTransitivity, 40.3s TimeCoverageRelationStatistics Valid=1000, Invalid=10130, Unknown=0, NotChecked=0, Total=11130 [2018-04-05 16:21:35,743 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 204 states. [2018-04-05 16:21:35,797 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 204 to 126. [2018-04-05 16:21:35,797 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 126 states. [2018-04-05 16:21:35,798 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 126 states to 126 states and 134 transitions. [2018-04-05 16:21:35,798 INFO L78 Accepts]: Start accepts. Automaton has 126 states and 134 transitions. Word has length 66 [2018-04-05 16:21:35,798 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-04-05 16:21:35,798 INFO L459 AbstractCegarLoop]: Abstraction has 126 states and 134 transitions. [2018-04-05 16:21:35,798 INFO L460 AbstractCegarLoop]: Interpolant automaton has 52 states. [2018-04-05 16:21:35,798 INFO L276 IsEmpty]: Start isEmpty. Operand 126 states and 134 transitions. [2018-04-05 16:21:35,799 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 68 [2018-04-05 16:21:35,799 INFO L347 BasicCegarLoop]: Found error trace [2018-04-05 16:21:35,799 INFO L355 BasicCegarLoop]: trace histogram [2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2018-04-05 16:21:35,799 INFO L408 AbstractCegarLoop]: === Iteration 23 === [__U_MULTI_fopenbsd_cstrncat_alloca_true_valid_memsafety_true_termination_i__cstrncatErr3RequiresViolation, __U_MULTI_fopenbsd_cstrncat_alloca_true_valid_memsafety_true_termination_i__cstrncatErr1RequiresViolation, __U_MULTI_fopenbsd_cstrncat_alloca_true_valid_memsafety_true_termination_i__cstrncatErr7RequiresViolation, __U_MULTI_fopenbsd_cstrncat_alloca_true_valid_memsafety_true_termination_i__cstrncatErr2RequiresViolation, __U_MULTI_fopenbsd_cstrncat_alloca_true_valid_memsafety_true_termination_i__cstrncatErr4RequiresViolation, __U_MULTI_fopenbsd_cstrncat_alloca_true_valid_memsafety_true_termination_i__cstrncatErr0RequiresViolation, __U_MULTI_fopenbsd_cstrncat_alloca_true_valid_memsafety_true_termination_i__cstrncatErr6RequiresViolation, __U_MULTI_fopenbsd_cstrncat_alloca_true_valid_memsafety_true_termination_i__cstrncatErr5RequiresViolation, mainErr3RequiresViolation, mainErr1RequiresViolation, mainErr2RequiresViolation, mainErr4EnsuresViolationMEMORY_LEAK, mainErr0RequiresViolation]=== [2018-04-05 16:21:35,800 INFO L82 PathProgramCache]: Analyzing trace with hash -1352767189, now seen corresponding path program 1 times No working directory specified, using /storage/ultimate/releaseScripts/default/UAutomizer-linux/z3 Starting monitored process 24 with z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 24 with z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2018-04-05 16:21:35,809 INFO L68 tionRefinementEngine]: Using refinement strategy FixedRefinementStrategy [2018-04-05 16:21:35,839 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-04-05 16:21:35,842 INFO L270 TraceCheckSpWp]: Computing forward predicates... [2018-04-05 16:21:35,896 INFO L477 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 6 treesize of output 5 [2018-04-05 16:21:35,897 INFO L267 ElimStorePlain]: Start of recursive call 2: End of recursive call: and 1 xjuncts. [2018-04-05 16:21:35,949 INFO L477 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 6 treesize of output 5 [2018-04-05 16:21:35,950 INFO L267 ElimStorePlain]: Start of recursive call 3: End of recursive call: and 1 xjuncts. [2018-04-05 16:21:36,010 INFO L267 ElimStorePlain]: Start of recursive call 1: 1 dim-0 vars, 2 dim-1 vars, End of recursive call: and 1 xjuncts. [2018-04-05 16:21:36,011 INFO L202 ElimStorePlain]: Needed 3 recursive calls to eliminate 3 variables, input treesize:21, output treesize:16 [2018-04-05 16:21:36,255 WARN L148 SmtUtils]: Spent 100ms on a formula simplification that was a NOOP. DAG size: 14 [2018-04-05 16:21:36,281 INFO L700 Elim1Store]: detected not equals via solver [2018-04-05 16:21:36,291 INFO L700 Elim1Store]: detected not equals via solver [2018-04-05 16:21:36,292 INFO L477 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 1 select indices, 1 select index equivalence classes, 2 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 14 treesize of output 23 [2018-04-05 16:21:36,292 INFO L267 ElimStorePlain]: Start of recursive call 2: End of recursive call: and 1 xjuncts. [2018-04-05 16:21:36,375 INFO L700 Elim1Store]: detected not equals via solver [2018-04-05 16:21:36,385 INFO L700 Elim1Store]: detected not equals via solver [2018-04-05 16:21:36,386 INFO L477 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 2 select indices, 2 select index equivalence classes, 2 disjoint index pairs (out of 1 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 11 treesize of output 4 [2018-04-05 16:21:36,386 INFO L267 ElimStorePlain]: Start of recursive call 3: End of recursive call: and 1 xjuncts. [2018-04-05 16:21:36,445 INFO L267 ElimStorePlain]: Start of recursive call 1: 1 dim-0 vars, 2 dim-1 vars, End of recursive call: and 1 xjuncts. [2018-04-05 16:21:36,446 INFO L202 ElimStorePlain]: Needed 3 recursive calls to eliminate 3 variables, input treesize:27, output treesize:13 [2018-04-05 16:21:38,783 INFO L134 CoverageAnalysis]: Checked inductivity of 14 backedges. 0 proven. 14 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-04-05 16:21:38,783 INFO L314 TraceCheckSpWp]: Computing backward predicates... [2018-04-05 16:21:43,830 INFO L477 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 1 select indices, 1 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 10 treesize of output 3 [2018-04-05 16:21:43,868 INFO L267 ElimStorePlain]: Start of recursive call 2: End of recursive call: and 1 xjuncts. [2018-04-05 16:21:43,903 INFO L477 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 0 select indices, 0 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 11 treesize of output 15 [2018-04-05 16:21:43,974 INFO L477 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 1 select indices, 1 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 12 treesize of output 3 [2018-04-05 16:21:43,975 INFO L267 ElimStorePlain]: Start of recursive call 4: End of recursive call: and 1 xjuncts. [2018-04-05 16:21:43,981 WARN L307 Elim1Store]: Array PQE input equivalent to true [2018-04-05 16:21:43,981 INFO L267 ElimStorePlain]: Start of recursive call 5: End of recursive call: and 1 xjuncts. [2018-04-05 16:21:44,002 INFO L267 ElimStorePlain]: Start of recursive call 3: 1 dim-1 vars, End of recursive call: and 1 xjuncts. [2018-04-05 16:21:44,030 INFO L267 ElimStorePlain]: Start of recursive call 1: 2 dim-0 vars, 2 dim-1 vars, End of recursive call: and 1 xjuncts. [2018-04-05 16:21:44,031 INFO L202 ElimStorePlain]: Needed 5 recursive calls to eliminate 4 variables, input treesize:24, output treesize:7 [2018-04-05 16:21:44,326 INFO L134 CoverageAnalysis]: Checked inductivity of 14 backedges. 0 proven. 14 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-04-05 16:21:44,378 INFO L320 seRefinementStrategy]: Constructing automaton from 0 perfect and 2 imperfect interpolant sequences. [2018-04-05 16:21:44,378 INFO L335 seRefinementStrategy]: Number of different interpolants: perfect sequences [] imperfect sequences [22, 22] total 42 [2018-04-05 16:21:44,379 INFO L442 AbstractCegarLoop]: Interpolant automaton has 43 states [2018-04-05 16:21:44,379 INFO L132 InterpolantAutomaton]: Constructing interpolant automaton starting with 43 interpolants. [2018-04-05 16:21:44,379 INFO L133 InterpolantAutomaton]: CoverageRelationStatistics Valid=122, Invalid=1684, Unknown=0, NotChecked=0, Total=1806 [2018-04-05 16:21:44,380 INFO L87 Difference]: Start difference. First operand 126 states and 134 transitions. Second operand 43 states. [2018-04-05 16:21:44,715 WARN L148 SmtUtils]: Spent 101ms on a formula simplification that was a NOOP. DAG size: 33 [2018-04-05 16:21:45,004 WARN L148 SmtUtils]: Spent 114ms on a formula simplification that was a NOOP. DAG size: 36 [2018-04-05 16:21:46,547 WARN L148 SmtUtils]: Spent 108ms on a formula simplification that was a NOOP. DAG size: 25 [2018-04-05 16:21:47,519 WARN L148 SmtUtils]: Spent 102ms on a formula simplification that was a NOOP. DAG size: 33 [2018-04-05 16:21:50,540 WARN L151 SmtUtils]: Spent 233ms on a formula simplification. DAG size of input: 46 DAG size of output 43 [2018-04-05 16:21:51,153 WARN L151 SmtUtils]: Spent 184ms on a formula simplification. DAG size of input: 39 DAG size of output 36 [2018-04-05 16:21:51,570 WARN L151 SmtUtils]: Spent 256ms on a formula simplification. DAG size of input: 49 DAG size of output 44 [2018-04-05 16:21:52,124 WARN L151 SmtUtils]: Spent 260ms on a formula simplification. DAG size of input: 46 DAG size of output 43 [2018-04-05 16:21:52,716 WARN L151 SmtUtils]: Spent 285ms on a formula simplification. DAG size of input: 35 DAG size of output 34 [2018-04-05 16:21:53,540 WARN L151 SmtUtils]: Spent 218ms on a formula simplification. DAG size of input: 41 DAG size of output 40 [2018-04-05 16:21:54,076 WARN L151 SmtUtils]: Spent 273ms on a formula simplification. DAG size of input: 51 DAG size of output 46 [2018-04-05 16:21:54,522 WARN L151 SmtUtils]: Spent 259ms on a formula simplification. DAG size of input: 51 DAG size of output 48 [2018-04-05 16:21:55,004 WARN L151 SmtUtils]: Spent 252ms on a formula simplification. DAG size of input: 49 DAG size of output 46 [2018-04-05 16:21:55,590 WARN L151 SmtUtils]: Spent 364ms on a formula simplification. DAG size of input: 63 DAG size of output 57 [2018-04-05 16:21:56,110 WARN L151 SmtUtils]: Spent 296ms on a formula simplification. DAG size of input: 60 DAG size of output 54 [2018-04-05 16:21:56,443 WARN L151 SmtUtils]: Spent 181ms on a formula simplification. DAG size of input: 45 DAG size of output 42 [2018-04-05 16:21:56,921 WARN L151 SmtUtils]: Spent 247ms on a formula simplification. DAG size of input: 49 DAG size of output 46 [2018-04-05 16:21:57,348 WARN L151 SmtUtils]: Spent 135ms on a formula simplification. DAG size of input: 38 DAG size of output 36 [2018-04-05 16:21:58,004 WARN L151 SmtUtils]: Spent 182ms on a formula simplification. DAG size of input: 45 DAG size of output 43 [2018-04-05 16:21:58,567 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-04-05 16:21:58,567 INFO L93 Difference]: Finished difference Result 190 states and 201 transitions. [2018-04-05 16:21:58,567 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 37 states. [2018-04-05 16:21:58,568 INFO L78 Accepts]: Start accepts. Automaton has 43 states. Word has length 67 [2018-04-05 16:21:58,568 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-04-05 16:21:58,569 INFO L225 Difference]: With dead ends: 190 [2018-04-05 16:21:58,569 INFO L226 Difference]: Without dead ends: 184 [2018-04-05 16:21:58,573 INFO L567 BasicCegarLoop]: 0 DeclaredPredicates, 166 GetRequests, 91 SyntacticMatches, 1 SemanticMatches, 74 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 753 ImplicationChecksByTransitivity, 17.7s TimeCoverageRelationStatistics Valid=678, Invalid=5022, Unknown=0, NotChecked=0, Total=5700 [2018-04-05 16:21:58,574 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 184 states. [2018-04-05 16:21:58,644 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 184 to 176. [2018-04-05 16:21:58,644 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 176 states. [2018-04-05 16:21:58,654 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 176 states to 176 states and 186 transitions. [2018-04-05 16:21:58,655 INFO L78 Accepts]: Start accepts. Automaton has 176 states and 186 transitions. Word has length 67 [2018-04-05 16:21:58,655 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-04-05 16:21:58,655 INFO L459 AbstractCegarLoop]: Abstraction has 176 states and 186 transitions. [2018-04-05 16:21:58,655 INFO L460 AbstractCegarLoop]: Interpolant automaton has 43 states. [2018-04-05 16:21:58,655 INFO L276 IsEmpty]: Start isEmpty. Operand 176 states and 186 transitions. [2018-04-05 16:21:58,656 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 71 [2018-04-05 16:21:58,656 INFO L347 BasicCegarLoop]: Found error trace [2018-04-05 16:21:58,657 INFO L355 BasicCegarLoop]: trace histogram [3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2018-04-05 16:21:58,657 INFO L408 AbstractCegarLoop]: === Iteration 24 === [__U_MULTI_fopenbsd_cstrncat_alloca_true_valid_memsafety_true_termination_i__cstrncatErr3RequiresViolation, __U_MULTI_fopenbsd_cstrncat_alloca_true_valid_memsafety_true_termination_i__cstrncatErr1RequiresViolation, __U_MULTI_fopenbsd_cstrncat_alloca_true_valid_memsafety_true_termination_i__cstrncatErr7RequiresViolation, __U_MULTI_fopenbsd_cstrncat_alloca_true_valid_memsafety_true_termination_i__cstrncatErr2RequiresViolation, __U_MULTI_fopenbsd_cstrncat_alloca_true_valid_memsafety_true_termination_i__cstrncatErr4RequiresViolation, __U_MULTI_fopenbsd_cstrncat_alloca_true_valid_memsafety_true_termination_i__cstrncatErr0RequiresViolation, __U_MULTI_fopenbsd_cstrncat_alloca_true_valid_memsafety_true_termination_i__cstrncatErr6RequiresViolation, __U_MULTI_fopenbsd_cstrncat_alloca_true_valid_memsafety_true_termination_i__cstrncatErr5RequiresViolation, mainErr3RequiresViolation, mainErr1RequiresViolation, mainErr2RequiresViolation, mainErr4EnsuresViolationMEMORY_LEAK, mainErr0RequiresViolation]=== [2018-04-05 16:21:58,657 INFO L82 PathProgramCache]: Analyzing trace with hash -521560857, now seen corresponding path program 2 times No working directory specified, using /storage/ultimate/releaseScripts/default/UAutomizer-linux/z3 Starting monitored process 25 with z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 25 with z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2018-04-05 16:21:58,692 INFO L68 tionRefinementEngine]: Using refinement strategy FixedRefinementStrategy [2018-04-05 16:21:58,754 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-04-05 16:21:58,759 INFO L270 TraceCheckSpWp]: Computing forward predicates... [2018-04-05 16:21:58,771 INFO L477 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 6 treesize of output 5 [2018-04-05 16:21:58,772 INFO L267 ElimStorePlain]: Start of recursive call 2: End of recursive call: and 1 xjuncts. [2018-04-05 16:21:58,782 INFO L267 ElimStorePlain]: Start of recursive call 1: 1 dim-1 vars, End of recursive call: and 1 xjuncts. [2018-04-05 16:21:58,782 INFO L202 ElimStorePlain]: Needed 2 recursive calls to eliminate 1 variables, input treesize:6, output treesize:5 [2018-04-05 16:21:58,847 INFO L477 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 6 treesize of output 5 [2018-04-05 16:21:58,848 INFO L267 ElimStorePlain]: Start of recursive call 2: End of recursive call: and 1 xjuncts. [2018-04-05 16:21:58,924 INFO L700 Elim1Store]: detected not equals via solver [2018-04-05 16:21:58,930 INFO L700 Elim1Store]: detected not equals via solver [2018-04-05 16:21:58,931 INFO L477 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 2 select indices, 2 select index equivalence classes, 2 disjoint index pairs (out of 1 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 11 treesize of output 4 [2018-04-05 16:21:58,931 INFO L267 ElimStorePlain]: Start of recursive call 3: End of recursive call: and 1 xjuncts. [2018-04-05 16:21:58,990 INFO L267 ElimStorePlain]: Start of recursive call 1: 2 dim-1 vars, End of recursive call: and 1 xjuncts. [2018-04-05 16:21:58,991 INFO L202 ElimStorePlain]: Needed 3 recursive calls to eliminate 2 variables, input treesize:20, output treesize:13 [2018-04-05 16:21:59,118 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 [2018-04-05 16:21:59,123 INFO L477 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 12 treesize of output 11 [2018-04-05 16:21:59,124 INFO L267 ElimStorePlain]: Start of recursive call 3: End of recursive call: and 1 xjuncts. [2018-04-05 16:21:59,132 INFO L267 ElimStorePlain]: Start of recursive call 2: 1 dim-1 vars, End of recursive call: and 1 xjuncts. [2018-04-05 16:21:59,151 INFO L267 ElimStorePlain]: Start of recursive call 1: 1 dim-2 vars, End of recursive call: and 1 xjuncts. [2018-04-05 16:21:59,151 INFO L202 ElimStorePlain]: Needed 3 recursive calls to eliminate 1 variables, input treesize:20, output treesize:16 [2018-04-05 16:22:00,200 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 23 treesize of output 24 [2018-04-05 16:22:00,206 INFO L477 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 8 treesize of output 7 [2018-04-05 16:22:00,207 INFO L267 ElimStorePlain]: Start of recursive call 3: End of recursive call: and 1 xjuncts. [2018-04-05 16:22:00,234 INFO L267 ElimStorePlain]: Start of recursive call 2: 1 dim-1 vars, End of recursive call: and 1 xjuncts. [2018-04-05 16:22:00,269 INFO L267 ElimStorePlain]: Start of recursive call 1: 3 dim-0 vars, 1 dim-2 vars, End of recursive call: and 1 xjuncts. [2018-04-05 16:22:00,269 INFO L202 ElimStorePlain]: Needed 3 recursive calls to eliminate 4 variables, input treesize:30, output treesize:15 [2018-04-05 16:22:00,674 INFO L477 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 0 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 21 treesize of output 17 [2018-04-05 16:22:00,719 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 17 treesize of output 14 [2018-04-05 16:22:00,720 INFO L267 ElimStorePlain]: Start of recursive call 3: End of recursive call: and 2 xjuncts. [2018-04-05 16:22:00,742 INFO L267 ElimStorePlain]: Start of recursive call 2: 1 dim-1 vars, End of recursive call: and 2 xjuncts. [2018-04-05 16:22:00,793 INFO L267 ElimStorePlain]: Start of recursive call 1: 1 dim-2 vars, End of recursive call: and 2 xjuncts. [2018-04-05 16:22:00,794 INFO L202 ElimStorePlain]: Needed 3 recursive calls to eliminate 1 variables, input treesize:29, output treesize:32 [2018-04-05 16:22:01,327 INFO L134 CoverageAnalysis]: Checked inductivity of 23 backedges. 0 proven. 23 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-04-05 16:22:01,328 INFO L314 TraceCheckSpWp]: Computing backward predicates... [2018-04-05 16:22:04,434 INFO L477 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 2 new quantified variables, introduced 0 case distinctions, treesize of input 37 treesize of output 28 [2018-04-05 16:22:04,532 INFO L477 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 12 treesize of output 11 [2018-04-05 16:22:04,533 INFO L267 ElimStorePlain]: Start of recursive call 3: End of recursive call: and 1 xjuncts. [2018-04-05 16:22:04,634 INFO L477 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 0 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 19 treesize of output 15 [2018-04-05 16:22:04,649 INFO L477 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 2 select indices, 2 select index equivalence classes, 2 disjoint index pairs (out of 1 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 15 treesize of output 10 [2018-04-05 16:22:04,650 INFO L267 ElimStorePlain]: Start of recursive call 5: End of recursive call: and 1 xjuncts. [2018-04-05 16:22:04,660 INFO L267 ElimStorePlain]: Start of recursive call 4: 1 dim-1 vars, End of recursive call: and 1 xjuncts. [2018-04-05 16:22:04,663 INFO L477 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 0 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 20 treesize of output 18 [2018-04-05 16:22:04,669 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 9 treesize of output 1 [2018-04-05 16:22:04,670 INFO L267 ElimStorePlain]: Start of recursive call 7: End of recursive call: and 1 xjuncts. [2018-04-05 16:22:04,693 INFO L267 ElimStorePlain]: Start of recursive call 6: 1 dim-1 vars, End of recursive call: and 1 xjuncts. [2018-04-05 16:22:04,779 INFO L267 ElimStorePlain]: Start of recursive call 2: 1 dim-1 vars, 1 dim-2 vars, End of recursive call: and 4 xjuncts. [2018-04-05 16:22:04,933 INFO L267 ElimStorePlain]: Start of recursive call 1: 3 dim-0 vars, 1 dim-2 vars, End of recursive call: and 4 xjuncts. [2018-04-05 16:22:04,934 INFO L202 ElimStorePlain]: Needed 7 recursive calls to eliminate 4 variables, input treesize:55, output treesize:84 [2018-04-05 16:22:05,351 WARN L151 SmtUtils]: Spent 189ms on a formula simplification. DAG size of input: 24 DAG size of output 20 [2018-04-05 16:22:06,091 INFO L134 CoverageAnalysis]: Checked inductivity of 23 backedges. 0 proven. 23 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-04-05 16:22:06,157 INFO L320 seRefinementStrategy]: Constructing automaton from 0 perfect and 2 imperfect interpolant sequences. [2018-04-05 16:22:06,158 INFO L335 seRefinementStrategy]: Number of different interpolants: perfect sequences [] imperfect sequences [20, 20] total 39 [2018-04-05 16:22:06,158 INFO L442 AbstractCegarLoop]: Interpolant automaton has 40 states [2018-04-05 16:22:06,158 INFO L132 InterpolantAutomaton]: Constructing interpolant automaton starting with 40 interpolants. [2018-04-05 16:22:06,159 INFO L133 InterpolantAutomaton]: CoverageRelationStatistics Valid=113, Invalid=1447, Unknown=0, NotChecked=0, Total=1560 [2018-04-05 16:22:06,159 INFO L87 Difference]: Start difference. First operand 176 states and 186 transitions. Second operand 40 states. [2018-04-05 16:22:08,305 WARN L148 SmtUtils]: Spent 110ms on a formula simplification that was a NOOP. DAG size: 28 [2018-04-05 16:22:09,221 WARN L151 SmtUtils]: Spent 240ms on a formula simplification. DAG size of input: 81 DAG size of output 64 [2018-04-05 16:22:09,691 WARN L148 SmtUtils]: Spent 130ms on a formula simplification that was a NOOP. DAG size: 49 [2018-04-05 16:22:10,081 WARN L151 SmtUtils]: Spent 224ms on a formula simplification. DAG size of input: 61 DAG size of output 51 [2018-04-05 16:22:10,462 WARN L151 SmtUtils]: Spent 180ms on a formula simplification. DAG size of input: 50 DAG size of output 40 [2018-04-05 16:22:11,752 WARN L151 SmtUtils]: Spent 239ms on a formula simplification. DAG size of input: 40 DAG size of output 38 [2018-04-05 16:22:12,457 WARN L151 SmtUtils]: Spent 223ms on a formula simplification. DAG size of input: 41 DAG size of output 35 [2018-04-05 16:22:13,065 WARN L151 SmtUtils]: Spent 371ms on a formula simplification. DAG size of input: 38 DAG size of output 33 [2018-04-05 16:22:13,435 WARN L151 SmtUtils]: Spent 157ms on a formula simplification. DAG size of input: 28 DAG size of output 25 [2018-04-05 16:22:14,417 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-04-05 16:22:14,417 INFO L93 Difference]: Finished difference Result 177 states and 186 transitions. [2018-04-05 16:22:14,418 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 28 states. [2018-04-05 16:22:14,418 INFO L78 Accepts]: Start accepts. Automaton has 40 states. Word has length 70 [2018-04-05 16:22:14,418 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-04-05 16:22:14,419 INFO L225 Difference]: With dead ends: 177 [2018-04-05 16:22:14,419 INFO L226 Difference]: Without dead ends: 176 [2018-04-05 16:22:14,421 INFO L567 BasicCegarLoop]: 0 DeclaredPredicates, 160 GetRequests, 101 SyntacticMatches, 0 SemanticMatches, 59 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 523 ImplicationChecksByTransitivity, 11.4s TimeCoverageRelationStatistics Valid=385, Invalid=3275, Unknown=0, NotChecked=0, Total=3660 [2018-04-05 16:22:14,421 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 176 states. [2018-04-05 16:22:14,444 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 176 to 176. [2018-04-05 16:22:14,444 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 176 states. [2018-04-05 16:22:14,445 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 176 states to 176 states and 185 transitions. [2018-04-05 16:22:14,445 INFO L78 Accepts]: Start accepts. Automaton has 176 states and 185 transitions. Word has length 70 [2018-04-05 16:22:14,446 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-04-05 16:22:14,446 INFO L459 AbstractCegarLoop]: Abstraction has 176 states and 185 transitions. [2018-04-05 16:22:14,446 INFO L460 AbstractCegarLoop]: Interpolant automaton has 40 states. [2018-04-05 16:22:14,446 INFO L276 IsEmpty]: Start isEmpty. Operand 176 states and 185 transitions. [2018-04-05 16:22:14,447 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 75 [2018-04-05 16:22:14,447 INFO L347 BasicCegarLoop]: Found error trace [2018-04-05 16:22:14,447 INFO L355 BasicCegarLoop]: trace histogram [2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2018-04-05 16:22:14,447 INFO L408 AbstractCegarLoop]: === Iteration 25 === [__U_MULTI_fopenbsd_cstrncat_alloca_true_valid_memsafety_true_termination_i__cstrncatErr3RequiresViolation, __U_MULTI_fopenbsd_cstrncat_alloca_true_valid_memsafety_true_termination_i__cstrncatErr1RequiresViolation, __U_MULTI_fopenbsd_cstrncat_alloca_true_valid_memsafety_true_termination_i__cstrncatErr7RequiresViolation, __U_MULTI_fopenbsd_cstrncat_alloca_true_valid_memsafety_true_termination_i__cstrncatErr2RequiresViolation, __U_MULTI_fopenbsd_cstrncat_alloca_true_valid_memsafety_true_termination_i__cstrncatErr4RequiresViolation, __U_MULTI_fopenbsd_cstrncat_alloca_true_valid_memsafety_true_termination_i__cstrncatErr0RequiresViolation, __U_MULTI_fopenbsd_cstrncat_alloca_true_valid_memsafety_true_termination_i__cstrncatErr6RequiresViolation, __U_MULTI_fopenbsd_cstrncat_alloca_true_valid_memsafety_true_termination_i__cstrncatErr5RequiresViolation, mainErr3RequiresViolation, mainErr1RequiresViolation, mainErr2RequiresViolation, mainErr4EnsuresViolationMEMORY_LEAK, mainErr0RequiresViolation]=== [2018-04-05 16:22:14,447 INFO L82 PathProgramCache]: Analyzing trace with hash -384644725, now seen corresponding path program 1 times No working directory specified, using /storage/ultimate/releaseScripts/default/UAutomizer-linux/z3 Starting monitored process 26 with z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 26 with z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2018-04-05 16:22:14,457 INFO L68 tionRefinementEngine]: Using refinement strategy FixedRefinementStrategy [2018-04-05 16:22:14,496 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-04-05 16:22:14,501 INFO L270 TraceCheckSpWp]: Computing forward predicates... [2018-04-05 16:22:14,563 INFO L477 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 6 treesize of output 5 [2018-04-05 16:22:14,564 INFO L267 ElimStorePlain]: Start of recursive call 2: End of recursive call: and 1 xjuncts. [2018-04-05 16:22:14,604 INFO L477 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 6 treesize of output 5 [2018-04-05 16:22:14,605 INFO L267 ElimStorePlain]: Start of recursive call 3: End of recursive call: and 1 xjuncts. [2018-04-05 16:22:14,641 INFO L267 ElimStorePlain]: Start of recursive call 1: 1 dim-0 vars, 2 dim-1 vars, End of recursive call: and 1 xjuncts. [2018-04-05 16:22:14,642 INFO L202 ElimStorePlain]: Needed 3 recursive calls to eliminate 3 variables, input treesize:21, output treesize:16 [2018-04-05 16:22:14,760 INFO L700 Elim1Store]: detected not equals via solver [2018-04-05 16:22:14,766 INFO L700 Elim1Store]: detected not equals via solver [2018-04-05 16:22:14,767 INFO L477 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 1 select indices, 1 select index equivalence classes, 2 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 14 treesize of output 23 [2018-04-05 16:22:14,767 INFO L267 ElimStorePlain]: Start of recursive call 2: End of recursive call: and 1 xjuncts. [2018-04-05 16:22:14,841 INFO L700 Elim1Store]: detected not equals via solver [2018-04-05 16:22:14,847 INFO L700 Elim1Store]: detected not equals via solver [2018-04-05 16:22:14,882 INFO L477 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 2 select indices, 2 select index equivalence classes, 2 disjoint index pairs (out of 1 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 11 treesize of output 4 [2018-04-05 16:22:14,883 INFO L267 ElimStorePlain]: Start of recursive call 3: End of recursive call: and 1 xjuncts. [2018-04-05 16:22:14,936 INFO L267 ElimStorePlain]: Start of recursive call 1: 2 dim-1 vars, End of recursive call: and 1 xjuncts. [2018-04-05 16:22:14,936 INFO L202 ElimStorePlain]: Needed 3 recursive calls to eliminate 2 variables, input treesize:30, output treesize:19 [2018-04-05 16:22:15,100 INFO L477 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 15 treesize of output 12 [2018-04-05 16:22:15,103 INFO L477 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 12 treesize of output 11 [2018-04-05 16:22:15,104 INFO L267 ElimStorePlain]: Start of recursive call 3: End of recursive call: and 1 xjuncts. [2018-04-05 16:22:15,115 INFO L267 ElimStorePlain]: Start of recursive call 2: 1 dim-1 vars, End of recursive call: and 1 xjuncts. [2018-04-05 16:22:15,139 INFO L267 ElimStorePlain]: Start of recursive call 1: 1 dim-2 vars, End of recursive call: and 1 xjuncts. [2018-04-05 16:22:15,139 INFO L202 ElimStorePlain]: Needed 3 recursive calls to eliminate 1 variables, input treesize:28, output treesize:24 [2018-04-05 16:22:16,595 INFO L700 Elim1Store]: detected not equals via solver [2018-04-05 16:22:16,620 INFO L477 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 2 select indices, 2 select index equivalence classes, 1 disjoint index pairs (out of 1 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 23 treesize of output 24 [2018-04-05 16:22:16,629 INFO L477 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 8 treesize of output 7 [2018-04-05 16:22:16,630 INFO L267 ElimStorePlain]: Start of recursive call 3: End of recursive call: and 1 xjuncts. [2018-04-05 16:22:16,661 INFO L267 ElimStorePlain]: Start of recursive call 2: 1 dim-1 vars, End of recursive call: and 1 xjuncts. [2018-04-05 16:22:16,712 INFO L267 ElimStorePlain]: Start of recursive call 1: 1 dim-0 vars, 1 dim-2 vars, End of recursive call: and 1 xjuncts. [2018-04-05 16:22:16,713 INFO L202 ElimStorePlain]: Needed 3 recursive calls to eliminate 2 variables, input treesize:41, output treesize:30 [2018-04-05 16:22:17,326 INFO L477 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 0 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 19 treesize of output 15 [2018-04-05 16:22:17,372 INFO L477 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 2 select indices, 2 select index equivalence classes, 0 disjoint index pairs (out of 1 index pairs), introduced 0 new quantified variables, introduced 1 case distinctions, treesize of input 15 treesize of output 12 [2018-04-05 16:22:17,373 INFO L267 ElimStorePlain]: Start of recursive call 3: End of recursive call: and 2 xjuncts. [2018-04-05 16:22:17,393 INFO L267 ElimStorePlain]: Start of recursive call 2: 1 dim-1 vars, End of recursive call: and 2 xjuncts. [2018-04-05 16:22:17,461 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 2 xjuncts. [2018-04-05 16:22:17,462 INFO L202 ElimStorePlain]: Needed 3 recursive calls to eliminate 3 variables, input treesize:44, output treesize:51 [2018-04-05 16:22:18,358 INFO L134 CoverageAnalysis]: Checked inductivity of 17 backedges. 0 proven. 17 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-04-05 16:22:18,358 INFO L314 TraceCheckSpWp]: Computing backward predicates... [2018-04-05 16:22:21,356 WARN L148 SmtUtils]: Spent 154ms on a formula simplification that was a NOOP. DAG size: 38 [2018-04-05 16:22:26,345 INFO L477 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 2 new quantified variables, introduced 0 case distinctions, treesize of input 41 treesize of output 32 [2018-04-05 16:22:26,595 WARN L148 SmtUtils]: Spent 248ms on a formula simplification that was a NOOP. DAG size: 28 [2018-04-05 16:22:26,600 INFO L477 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 12 treesize of output 11 [2018-04-05 16:22:26,601 INFO L267 ElimStorePlain]: Start of recursive call 3: End of recursive call: and 1 xjuncts. [2018-04-05 16:22:26,915 INFO L477 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 0 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 21 treesize of output 17 [2018-04-05 16:22:26,930 INFO L477 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 2 select indices, 2 select index equivalence classes, 2 disjoint index pairs (out of 1 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 17 treesize of output 12 [2018-04-05 16:22:26,930 INFO L267 ElimStorePlain]: Start of recursive call 5: End of recursive call: and 1 xjuncts. [2018-04-05 16:22:26,956 INFO L267 ElimStorePlain]: Start of recursive call 4: 1 dim-1 vars, End of recursive call: and 1 xjuncts. [2018-04-05 16:22:26,970 INFO L477 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 0 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 20 treesize of output 18 [2018-04-05 16:22:26,988 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 9 treesize of output 1 [2018-04-05 16:22:26,989 INFO L267 ElimStorePlain]: Start of recursive call 7: End of recursive call: and 1 xjuncts. [2018-04-05 16:22:27,037 INFO L267 ElimStorePlain]: Start of recursive call 6: 1 dim-1 vars, End of recursive call: and 1 xjuncts. [2018-04-05 16:22:27,178 INFO L267 ElimStorePlain]: Start of recursive call 2: 1 dim-1 vars, 1 dim-2 vars, End of recursive call: and 4 xjuncts. [2018-04-05 16:22:27,350 INFO L267 ElimStorePlain]: Start of recursive call 1: 3 dim-0 vars, 1 dim-2 vars, End of recursive call: and 6 xjuncts. [2018-04-05 16:22:27,351 INFO L202 ElimStorePlain]: Needed 7 recursive calls to eliminate 4 variables, input treesize:65, output treesize:209 [2018-04-05 16:22:28,241 WARN L151 SmtUtils]: Spent 582ms on a formula simplification. DAG size of input: 42 DAG size of output 28 [2018-04-05 16:22:29,055 WARN L148 SmtUtils]: Spent 313ms on a formula simplification that was a NOOP. DAG size: 28 [2018-04-05 16:22:30,305 WARN L151 SmtUtils]: Spent 549ms on a formula simplification. DAG size of input: 28 DAG size of output 28 [2018-04-05 16:22:31,074 INFO L477 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 1 select indices, 1 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 10 treesize of output 3 [2018-04-05 16:22:31,075 INFO L267 ElimStorePlain]: Start of recursive call 2: End of recursive call: and 1 xjuncts. [2018-04-05 16:22:31,107 INFO L477 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 0 select indices, 0 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 11 treesize of output 15 [2018-04-05 16:22:31,179 INFO L477 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 1 select indices, 1 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 12 treesize of output 3 [2018-04-05 16:22:31,180 INFO L267 ElimStorePlain]: Start of recursive call 4: End of recursive call: and 1 xjuncts. [2018-04-05 16:22:31,183 WARN L307 Elim1Store]: Array PQE input equivalent to true [2018-04-05 16:22:31,183 INFO L267 ElimStorePlain]: Start of recursive call 5: End of recursive call: and 1 xjuncts. [2018-04-05 16:22:31,205 INFO L267 ElimStorePlain]: Start of recursive call 3: 1 dim-1 vars, End of recursive call: and 1 xjuncts. [2018-04-05 16:22:31,234 INFO L267 ElimStorePlain]: Start of recursive call 1: 2 dim-0 vars, 2 dim-1 vars, End of recursive call: and 1 xjuncts. [2018-04-05 16:22:31,235 INFO L202 ElimStorePlain]: Needed 5 recursive calls to eliminate 4 variables, input treesize:24, output treesize:7 [2018-04-05 16:22:31,816 INFO L134 CoverageAnalysis]: Checked inductivity of 17 backedges. 0 proven. 17 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-04-05 16:22:31,895 INFO L320 seRefinementStrategy]: Constructing automaton from 0 perfect and 2 imperfect interpolant sequences. [2018-04-05 16:22:31,896 INFO L335 seRefinementStrategy]: Number of different interpolants: perfect sequences [] imperfect sequences [26, 27] total 51 [2018-04-05 16:22:31,896 INFO L442 AbstractCegarLoop]: Interpolant automaton has 52 states [2018-04-05 16:22:31,896 INFO L132 InterpolantAutomaton]: Constructing interpolant automaton starting with 52 interpolants. [2018-04-05 16:22:31,897 INFO L133 InterpolantAutomaton]: CoverageRelationStatistics Valid=145, Invalid=2507, Unknown=0, NotChecked=0, Total=2652 [2018-04-05 16:22:31,897 INFO L87 Difference]: Start difference. First operand 176 states and 185 transitions. Second operand 52 states. [2018-04-05 16:22:32,555 WARN L148 SmtUtils]: Spent 201ms on a formula simplification that was a NOOP. DAG size: 45 [2018-04-05 16:22:32,969 WARN L148 SmtUtils]: Spent 194ms on a formula simplification that was a NOOP. DAG size: 48 [2018-04-05 16:22:33,888 WARN L148 SmtUtils]: Spent 207ms on a formula simplification that was a NOOP. DAG size: 48 [2018-04-05 16:22:35,121 WARN L148 SmtUtils]: Spent 157ms on a formula simplification that was a NOOP. DAG size: 41 [2018-04-05 16:22:36,925 WARN L151 SmtUtils]: Spent 210ms on a formula simplification. DAG size of input: 43 DAG size of output 42 [2018-04-05 16:22:38,489 WARN L148 SmtUtils]: Spent 236ms on a formula simplification that was a NOOP. DAG size: 36 [2018-04-05 16:22:39,321 WARN L148 SmtUtils]: Spent 107ms on a formula simplification that was a NOOP. DAG size: 44 [2018-04-05 16:22:40,036 WARN L148 SmtUtils]: Spent 197ms on a formula simplification that was a NOOP. DAG size: 47 [2018-04-05 16:22:40,438 WARN L148 SmtUtils]: Spent 144ms on a formula simplification that was a NOOP. DAG size: 53 [2018-04-05 16:22:41,335 WARN L148 SmtUtils]: Spent 198ms on a formula simplification that was a NOOP. DAG size: 50 [2018-04-05 16:22:42,739 WARN L151 SmtUtils]: Spent 804ms on a formula simplification. DAG size of input: 97 DAG size of output 76 [2018-04-05 16:22:43,058 WARN L148 SmtUtils]: Spent 100ms on a formula simplification that was a NOOP. DAG size: 44 [2018-04-05 16:22:43,950 WARN L151 SmtUtils]: Spent 469ms on a formula simplification. DAG size of input: 91 DAG size of output 70 [2018-04-05 16:22:44,857 WARN L151 SmtUtils]: Spent 549ms on a formula simplification. DAG size of input: 87 DAG size of output 73 [2018-04-05 16:22:46,178 WARN L151 SmtUtils]: Spent 593ms on a formula simplification. DAG size of input: 47 DAG size of output 46 [2018-04-05 16:22:47,548 WARN L151 SmtUtils]: Spent 630ms on a formula simplification. DAG size of input: 82 DAG size of output 75 [2018-04-05 16:22:49,287 WARN L151 SmtUtils]: Spent 617ms on a formula simplification. DAG size of input: 55 DAG size of output 54 [2018-04-05 16:22:50,650 WARN L151 SmtUtils]: Spent 631ms on a formula simplification. DAG size of input: 91 DAG size of output 84 [2018-04-05 16:22:51,657 WARN L151 SmtUtils]: Spent 275ms on a formula simplification. DAG size of input: 59 DAG size of output 58 [2018-04-05 16:22:52,320 WARN L148 SmtUtils]: Spent 200ms on a formula simplification that was a NOOP. DAG size: 82 [2018-04-05 16:22:53,931 WARN L151 SmtUtils]: Spent 1009ms on a formula simplification. DAG size of input: 72 DAG size of output 65 [2018-04-05 16:22:54,535 WARN L148 SmtUtils]: Spent 248ms on a formula simplification that was a NOOP. DAG size: 72 [2018-04-05 16:22:55,127 WARN L148 SmtUtils]: Spent 107ms on a formula simplification that was a NOOP. DAG size: 37 [2018-04-05 16:22:56,545 WARN L151 SmtUtils]: Spent 452ms on a formula simplification. DAG size of input: 64 DAG size of output 60 [2018-04-05 16:22:57,285 WARN L151 SmtUtils]: Spent 425ms on a formula simplification. DAG size of input: 53 DAG size of output 49 [2018-04-05 16:22:57,839 WARN L151 SmtUtils]: Spent 314ms on a formula simplification. DAG size of input: 63 DAG size of output 57 [2018-04-05 16:22:58,642 WARN L151 SmtUtils]: Spent 456ms on a formula simplification. DAG size of input: 60 DAG size of output 57 [2018-04-05 16:22:59,276 WARN L148 SmtUtils]: Spent 160ms on a formula simplification that was a NOOP. DAG size: 79 [2018-04-05 16:22:59,998 WARN L151 SmtUtils]: Spent 515ms on a formula simplification. DAG size of input: 50 DAG size of output 49 [2018-04-05 16:23:00,547 WARN L148 SmtUtils]: Spent 135ms on a formula simplification that was a NOOP. DAG size: 70 [2018-04-05 16:23:01,187 WARN L148 SmtUtils]: Spent 160ms on a formula simplification that was a NOOP. DAG size: 73 [2018-04-05 16:23:01,663 WARN L148 SmtUtils]: Spent 117ms on a formula simplification that was a NOOP. DAG size: 41 [2018-04-05 16:23:03,138 WARN L151 SmtUtils]: Spent 765ms on a formula simplification. DAG size of input: 60 DAG size of output 59 [2018-04-05 16:23:03,662 WARN L151 SmtUtils]: Spent 191ms on a formula simplification. DAG size of input: 35 DAG size of output 32 [2018-04-05 16:23:04,636 WARN L151 SmtUtils]: Spent 574ms on a formula simplification. DAG size of input: 81 DAG size of output 67 [2018-04-05 16:23:05,822 WARN L151 SmtUtils]: Spent 576ms on a formula simplification. DAG size of input: 93 DAG size of output 81 [2018-04-05 16:23:06,882 WARN L151 SmtUtils]: Spent 408ms on a formula simplification. DAG size of input: 86 DAG size of output 73 [2018-04-05 16:23:07,557 WARN L151 SmtUtils]: Spent 397ms on a formula simplification. DAG size of input: 76 DAG size of output 63 [2018-04-05 16:23:08,640 WARN L151 SmtUtils]: Spent 701ms on a formula simplification. DAG size of input: 90 DAG size of output 74 [2018-04-05 16:23:09,454 WARN L151 SmtUtils]: Spent 434ms on a formula simplification. DAG size of input: 74 DAG size of output 68 [2018-04-05 16:23:10,011 WARN L151 SmtUtils]: Spent 265ms on a formula simplification. DAG size of input: 60 DAG size of output 57 [2018-04-05 16:23:10,750 WARN L151 SmtUtils]: Spent 329ms on a formula simplification. DAG size of input: 69 DAG size of output 66 [2018-04-05 16:23:11,308 WARN L151 SmtUtils]: Spent 241ms on a formula simplification. DAG size of input: 60 DAG size of output 57 [2018-04-05 16:23:11,945 WARN L151 SmtUtils]: Spent 338ms on a formula simplification. DAG size of input: 63 DAG size of output 60 [2018-04-05 16:23:12,694 WARN L151 SmtUtils]: Spent 200ms on a formula simplification. DAG size of input: 50 DAG size of output 48 [2018-04-05 16:23:13,387 WARN L151 SmtUtils]: Spent 230ms on a formula simplification. DAG size of input: 57 DAG size of output 55 [2018-04-05 16:23:13,997 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-04-05 16:23:14,047 INFO L93 Difference]: Finished difference Result 240 states and 252 transitions. [2018-04-05 16:23:14,047 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 62 states. [2018-04-05 16:23:14,047 INFO L78 Accepts]: Start accepts. Automaton has 52 states. Word has length 74 [2018-04-05 16:23:14,048 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-04-05 16:23:14,049 INFO L225 Difference]: With dead ends: 240 [2018-04-05 16:23:14,049 INFO L226 Difference]: Without dead ends: 234 [2018-04-05 16:23:14,052 INFO L567 BasicCegarLoop]: 0 DeclaredPredicates, 204 GetRequests, 96 SyntacticMatches, 1 SemanticMatches, 107 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 2023 ImplicationChecksByTransitivity, 47.9s TimeCoverageRelationStatistics Valid=1168, Invalid=10604, Unknown=0, NotChecked=0, Total=11772 [2018-04-05 16:23:14,052 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 234 states. [2018-04-05 16:23:14,081 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 234 to 211. [2018-04-05 16:23:14,081 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 211 states. [2018-04-05 16:23:14,091 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 211 states to 211 states and 221 transitions. [2018-04-05 16:23:14,091 INFO L78 Accepts]: Start accepts. Automaton has 211 states and 221 transitions. Word has length 74 [2018-04-05 16:23:14,091 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-04-05 16:23:14,092 INFO L459 AbstractCegarLoop]: Abstraction has 211 states and 221 transitions. [2018-04-05 16:23:14,092 INFO L460 AbstractCegarLoop]: Interpolant automaton has 52 states. [2018-04-05 16:23:14,092 INFO L276 IsEmpty]: Start isEmpty. Operand 211 states and 221 transitions. [2018-04-05 16:23:14,093 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 78 [2018-04-05 16:23:14,093 INFO L347 BasicCegarLoop]: Found error trace [2018-04-05 16:23:14,093 INFO L355 BasicCegarLoop]: trace histogram [3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2018-04-05 16:23:14,093 INFO L408 AbstractCegarLoop]: === Iteration 26 === [__U_MULTI_fopenbsd_cstrncat_alloca_true_valid_memsafety_true_termination_i__cstrncatErr3RequiresViolation, __U_MULTI_fopenbsd_cstrncat_alloca_true_valid_memsafety_true_termination_i__cstrncatErr1RequiresViolation, __U_MULTI_fopenbsd_cstrncat_alloca_true_valid_memsafety_true_termination_i__cstrncatErr7RequiresViolation, __U_MULTI_fopenbsd_cstrncat_alloca_true_valid_memsafety_true_termination_i__cstrncatErr2RequiresViolation, __U_MULTI_fopenbsd_cstrncat_alloca_true_valid_memsafety_true_termination_i__cstrncatErr4RequiresViolation, __U_MULTI_fopenbsd_cstrncat_alloca_true_valid_memsafety_true_termination_i__cstrncatErr0RequiresViolation, __U_MULTI_fopenbsd_cstrncat_alloca_true_valid_memsafety_true_termination_i__cstrncatErr6RequiresViolation, __U_MULTI_fopenbsd_cstrncat_alloca_true_valid_memsafety_true_termination_i__cstrncatErr5RequiresViolation, mainErr3RequiresViolation, mainErr1RequiresViolation, mainErr2RequiresViolation, mainErr4EnsuresViolationMEMORY_LEAK, mainErr0RequiresViolation]=== [2018-04-05 16:23:14,093 INFO L82 PathProgramCache]: Analyzing trace with hash 109371527, now seen corresponding path program 1 times No working directory specified, using /storage/ultimate/releaseScripts/default/UAutomizer-linux/z3 Starting monitored process 27 with z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 27 with z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2018-04-05 16:23:14,135 INFO L68 tionRefinementEngine]: Using refinement strategy FixedRefinementStrategy [2018-04-05 16:23:14,207 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-04-05 16:23:14,211 INFO L270 TraceCheckSpWp]: Computing forward predicates... [2018-04-05 16:23:14,221 INFO L477 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 6 treesize of output 5 [2018-04-05 16:23:14,222 INFO L267 ElimStorePlain]: Start of recursive call 2: End of recursive call: and 1 xjuncts. [2018-04-05 16:23:14,230 INFO L267 ElimStorePlain]: Start of recursive call 1: 1 dim-1 vars, End of recursive call: and 1 xjuncts. [2018-04-05 16:23:14,230 INFO L202 ElimStorePlain]: Needed 2 recursive calls to eliminate 1 variables, input treesize:6, output treesize:5 [2018-04-05 16:23:14,272 INFO L477 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 6 treesize of output 5 [2018-04-05 16:23:14,273 INFO L267 ElimStorePlain]: Start of recursive call 2: End of recursive call: and 1 xjuncts. [2018-04-05 16:23:14,322 INFO L700 Elim1Store]: detected not equals via solver [2018-04-05 16:23:14,328 INFO L700 Elim1Store]: detected not equals via solver [2018-04-05 16:23:14,329 INFO L477 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 2 select indices, 2 select index equivalence classes, 2 disjoint index pairs (out of 1 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 11 treesize of output 4 [2018-04-05 16:23:14,329 INFO L267 ElimStorePlain]: Start of recursive call 3: End of recursive call: and 1 xjuncts. [2018-04-05 16:23:14,361 INFO L267 ElimStorePlain]: Start of recursive call 1: 2 dim-1 vars, End of recursive call: and 1 xjuncts. [2018-04-05 16:23:14,361 INFO L202 ElimStorePlain]: Needed 3 recursive calls to eliminate 2 variables, input treesize:20, output treesize:13 [2018-04-05 16:23:14,488 INFO L477 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 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 [2018-04-05 16:23:14,491 INFO L477 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 12 treesize of output 11 [2018-04-05 16:23:14,491 INFO L267 ElimStorePlain]: Start of recursive call 3: End of recursive call: and 1 xjuncts. [2018-04-05 16:23:14,499 INFO L267 ElimStorePlain]: Start of recursive call 2: 1 dim-1 vars, End of recursive call: and 1 xjuncts. [2018-04-05 16:23:14,523 INFO L267 ElimStorePlain]: Start of recursive call 1: 1 dim-2 vars, End of recursive call: and 1 xjuncts. [2018-04-05 16:23:14,524 INFO L202 ElimStorePlain]: Needed 3 recursive calls to eliminate 1 variables, input treesize:20, output treesize:16 [2018-04-05 16:23:15,510 INFO L477 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 2 select indices, 2 select index equivalence classes, 1 disjoint index pairs (out of 1 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 23 treesize of output 24 [2018-04-05 16:23:15,516 INFO L477 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 8 treesize of output 7 [2018-04-05 16:23:15,517 INFO L267 ElimStorePlain]: Start of recursive call 3: End of recursive call: and 1 xjuncts. [2018-04-05 16:23:15,551 INFO L267 ElimStorePlain]: Start of recursive call 2: 1 dim-1 vars, End of recursive call: and 1 xjuncts. [2018-04-05 16:23:15,587 INFO L267 ElimStorePlain]: Start of recursive call 1: 3 dim-0 vars, 1 dim-2 vars, End of recursive call: and 1 xjuncts. [2018-04-05 16:23:15,588 INFO L202 ElimStorePlain]: Needed 3 recursive calls to eliminate 4 variables, input treesize:30, output treesize:15 [2018-04-05 16:23:15,995 INFO L477 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 0 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 21 treesize of output 17 [2018-04-05 16:23:16,050 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 17 treesize of output 14 [2018-04-05 16:23:16,051 INFO L267 ElimStorePlain]: Start of recursive call 3: End of recursive call: and 2 xjuncts. [2018-04-05 16:23:16,071 INFO L267 ElimStorePlain]: Start of recursive call 2: 1 dim-1 vars, End of recursive call: and 2 xjuncts. [2018-04-05 16:23:16,114 INFO L267 ElimStorePlain]: Start of recursive call 1: 1 dim-2 vars, End of recursive call: and 2 xjuncts. [2018-04-05 16:23:16,115 INFO L202 ElimStorePlain]: Needed 3 recursive calls to eliminate 1 variables, input treesize:29, output treesize:32 [2018-04-05 16:23:16,659 INFO L134 CoverageAnalysis]: Checked inductivity of 26 backedges. 0 proven. 23 refuted. 0 times theorem prover too weak. 3 trivial. 0 not checked. [2018-04-05 16:23:16,659 INFO L314 TraceCheckSpWp]: Computing backward predicates... [2018-04-05 16:23:20,264 INFO L477 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 2 new quantified variables, introduced 0 case distinctions, treesize of input 39 treesize of output 30 [2018-04-05 16:23:20,378 WARN L148 SmtUtils]: Spent 112ms on a formula simplification that was a NOOP. DAG size: 28 [2018-04-05 16:23:20,381 INFO L477 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 12 treesize of output 11 [2018-04-05 16:23:20,382 INFO L267 ElimStorePlain]: Start of recursive call 3: End of recursive call: and 1 xjuncts. [2018-04-05 16:23:20,488 INFO L477 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 0 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 22 treesize of output 20 [2018-04-05 16:23:20,492 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 9 treesize of output 1 [2018-04-05 16:23:20,492 INFO L267 ElimStorePlain]: Start of recursive call 5: End of recursive call: and 1 xjuncts. [2018-04-05 16:23:20,517 INFO L267 ElimStorePlain]: Start of recursive call 4: 1 dim-1 vars, End of recursive call: and 1 xjuncts. [2018-04-05 16:23:20,521 INFO L477 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 0 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 21 treesize of output 17 [2018-04-05 16:23:20,528 INFO L477 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 2 select indices, 2 select index equivalence classes, 2 disjoint index pairs (out of 1 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 17 treesize of output 12 [2018-04-05 16:23:20,529 INFO L267 ElimStorePlain]: Start of recursive call 7: End of recursive call: and 1 xjuncts. [2018-04-05 16:23:20,538 INFO L267 ElimStorePlain]: Start of recursive call 6: 1 dim-1 vars, End of recursive call: and 1 xjuncts. [2018-04-05 16:23:20,626 INFO L267 ElimStorePlain]: Start of recursive call 2: 1 dim-1 vars, 1 dim-2 vars, End of recursive call: and 4 xjuncts. [2018-04-05 16:23:20,763 INFO L267 ElimStorePlain]: Start of recursive call 1: 3 dim-0 vars, 1 dim-2 vars, End of recursive call: and 4 xjuncts. [2018-04-05 16:23:20,763 INFO L202 ElimStorePlain]: Needed 7 recursive calls to eliminate 4 variables, input treesize:57, output treesize:84 [2018-04-05 16:23:21,126 WARN L151 SmtUtils]: Spent 184ms on a formula simplification. DAG size of input: 24 DAG size of output 20 [2018-04-05 16:23:21,766 INFO L134 CoverageAnalysis]: Checked inductivity of 26 backedges. 0 proven. 23 refuted. 0 times theorem prover too weak. 3 trivial. 0 not checked. [2018-04-05 16:23:21,819 INFO L320 seRefinementStrategy]: Constructing automaton from 0 perfect and 2 imperfect interpolant sequences. [2018-04-05 16:23:21,819 INFO L335 seRefinementStrategy]: Number of different interpolants: perfect sequences [] imperfect sequences [21, 21] total 41 [2018-04-05 16:23:21,820 INFO L442 AbstractCegarLoop]: Interpolant automaton has 42 states [2018-04-05 16:23:21,820 INFO L132 InterpolantAutomaton]: Constructing interpolant automaton starting with 42 interpolants. [2018-04-05 16:23:21,821 INFO L133 InterpolantAutomaton]: CoverageRelationStatistics Valid=118, Invalid=1604, Unknown=0, NotChecked=0, Total=1722 [2018-04-05 16:23:21,821 INFO L87 Difference]: Start difference. First operand 211 states and 221 transitions. Second operand 42 states. [2018-04-05 16:23:25,209 WARN L151 SmtUtils]: Spent 220ms on a formula simplification. DAG size of input: 73 DAG size of output 61 [2018-04-05 16:23:25,732 WARN L148 SmtUtils]: Spent 110ms on a formula simplification that was a NOOP. DAG size: 49 [2018-04-05 16:23:26,354 WARN L151 SmtUtils]: Spent 208ms on a formula simplification. DAG size of input: 61 DAG size of output 51 [2018-04-05 16:23:26,725 WARN L151 SmtUtils]: Spent 159ms on a formula simplification. DAG size of input: 50 DAG size of output 40 [2018-04-05 16:23:27,349 WARN L151 SmtUtils]: Spent 267ms on a formula simplification. DAG size of input: 71 DAG size of output 59 [2018-04-05 16:23:28,230 WARN L151 SmtUtils]: Spent 205ms on a formula simplification. DAG size of input: 59 DAG size of output 49 [2018-04-05 16:23:28,478 WARN L151 SmtUtils]: Spent 115ms on a formula simplification. DAG size of input: 39 DAG size of output 29 [2018-04-05 16:23:28,902 WARN L151 SmtUtils]: Spent 189ms on a formula simplification. DAG size of input: 40 DAG size of output 38 [2018-04-05 16:23:29,606 WARN L151 SmtUtils]: Spent 183ms on a formula simplification. DAG size of input: 41 DAG size of output 35 [2018-04-05 16:23:30,151 WARN L151 SmtUtils]: Spent 322ms on a formula simplification. DAG size of input: 38 DAG size of output 33 [2018-04-05 16:23:30,510 WARN L151 SmtUtils]: Spent 152ms on a formula simplification. DAG size of input: 28 DAG size of output 25 [2018-04-05 16:23:30,857 WARN L151 SmtUtils]: Spent 142ms on a formula simplification. DAG size of input: 31 DAG size of output 29 [2018-04-05 16:23:31,289 WARN L151 SmtUtils]: Spent 212ms on a formula simplification. DAG size of input: 32 DAG size of output 26 [2018-04-05 16:23:32,551 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-04-05 16:23:32,552 INFO L93 Difference]: Finished difference Result 240 states and 249 transitions. [2018-04-05 16:23:32,553 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 39 states. [2018-04-05 16:23:32,553 INFO L78 Accepts]: Start accepts. Automaton has 42 states. Word has length 77 [2018-04-05 16:23:32,553 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-04-05 16:23:32,555 INFO L225 Difference]: With dead ends: 240 [2018-04-05 16:23:32,555 INFO L226 Difference]: Without dead ends: 239 [2018-04-05 16:23:32,559 INFO L567 BasicCegarLoop]: 0 DeclaredPredicates, 182 GetRequests, 113 SyntacticMatches, 0 SemanticMatches, 69 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 744 ImplicationChecksByTransitivity, 13.5s TimeCoverageRelationStatistics Valid=537, Invalid=4433, Unknown=0, NotChecked=0, Total=4970 [2018-04-05 16:23:32,560 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 239 states. [2018-04-05 16:23:32,621 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 239 to 192. [2018-04-05 16:23:32,621 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 192 states. [2018-04-05 16:23:32,628 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 192 states to 192 states and 203 transitions. [2018-04-05 16:23:32,629 INFO L78 Accepts]: Start accepts. Automaton has 192 states and 203 transitions. Word has length 77 [2018-04-05 16:23:32,638 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-04-05 16:23:32,638 INFO L459 AbstractCegarLoop]: Abstraction has 192 states and 203 transitions. [2018-04-05 16:23:32,638 INFO L460 AbstractCegarLoop]: Interpolant automaton has 42 states. [2018-04-05 16:23:32,638 INFO L276 IsEmpty]: Start isEmpty. Operand 192 states and 203 transitions. [2018-04-05 16:23:32,639 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 81 [2018-04-05 16:23:32,639 INFO L347 BasicCegarLoop]: Found error trace [2018-04-05 16:23:32,640 INFO L355 BasicCegarLoop]: trace histogram [5, 5, 4, 4, 4, 4, 4, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2018-04-05 16:23:32,640 INFO L408 AbstractCegarLoop]: === Iteration 27 === [__U_MULTI_fopenbsd_cstrncat_alloca_true_valid_memsafety_true_termination_i__cstrncatErr3RequiresViolation, __U_MULTI_fopenbsd_cstrncat_alloca_true_valid_memsafety_true_termination_i__cstrncatErr1RequiresViolation, __U_MULTI_fopenbsd_cstrncat_alloca_true_valid_memsafety_true_termination_i__cstrncatErr7RequiresViolation, __U_MULTI_fopenbsd_cstrncat_alloca_true_valid_memsafety_true_termination_i__cstrncatErr2RequiresViolation, __U_MULTI_fopenbsd_cstrncat_alloca_true_valid_memsafety_true_termination_i__cstrncatErr4RequiresViolation, __U_MULTI_fopenbsd_cstrncat_alloca_true_valid_memsafety_true_termination_i__cstrncatErr0RequiresViolation, __U_MULTI_fopenbsd_cstrncat_alloca_true_valid_memsafety_true_termination_i__cstrncatErr6RequiresViolation, __U_MULTI_fopenbsd_cstrncat_alloca_true_valid_memsafety_true_termination_i__cstrncatErr5RequiresViolation, mainErr3RequiresViolation, mainErr1RequiresViolation, mainErr2RequiresViolation, mainErr4EnsuresViolationMEMORY_LEAK, mainErr0RequiresViolation]=== [2018-04-05 16:23:32,640 INFO L82 PathProgramCache]: Analyzing trace with hash 613204894, now seen corresponding path program 3 times No working directory specified, using /storage/ultimate/releaseScripts/default/UAutomizer-linux/z3 Starting monitored process 28 with z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 28 with z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2018-04-05 16:23:32,669 INFO L68 tionRefinementEngine]: Using refinement strategy FixedRefinementStrategy [2018-04-05 16:23:32,753 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-04-05 16:23:32,759 INFO L270 TraceCheckSpWp]: Computing forward predicates... [2018-04-05 16:23:32,994 INFO L477 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 6 treesize of output 5 [2018-04-05 16:23:32,994 INFO L267 ElimStorePlain]: Start of recursive call 2: End of recursive call: and 1 xjuncts. [2018-04-05 16:23:33,106 INFO L477 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 6 treesize of output 5 [2018-04-05 16:23:33,107 INFO L267 ElimStorePlain]: Start of recursive call 3: End of recursive call: and 1 xjuncts. [2018-04-05 16:23:33,214 INFO L267 ElimStorePlain]: Start of recursive call 1: 2 dim-1 vars, End of recursive call: and 1 xjuncts. [2018-04-05 16:23:33,214 INFO L202 ElimStorePlain]: Needed 3 recursive calls to eliminate 2 variables, input treesize:27, output treesize:25 [2018-04-05 16:23:33,507 INFO L700 Elim1Store]: detected not equals via solver [2018-04-05 16:23:33,518 INFO L700 Elim1Store]: detected not equals via solver [2018-04-05 16:23:33,519 INFO L477 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 2 select indices, 2 select index equivalence classes, 2 disjoint index pairs (out of 1 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 11 treesize of output 4 [2018-04-05 16:23:33,519 INFO L267 ElimStorePlain]: Start of recursive call 2: End of recursive call: and 1 xjuncts. [2018-04-05 16:23:33,623 INFO L700 Elim1Store]: detected not equals via solver [2018-04-05 16:23:33,624 INFO L477 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 1 select indices, 1 select index equivalence classes, 2 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 12 treesize of output 21 [2018-04-05 16:23:33,624 INFO L267 ElimStorePlain]: Start of recursive call 3: End of recursive call: and 1 xjuncts. [2018-04-05 16:23:33,699 INFO L267 ElimStorePlain]: Start of recursive call 1: 2 dim-1 vars, End of recursive call: and 1 xjuncts. [2018-04-05 16:23:33,700 INFO L202 ElimStorePlain]: Needed 3 recursive calls to eliminate 2 variables, input treesize:39, output treesize:28 [2018-04-05 16:23:33,923 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 19 treesize of output 16 [2018-04-05 16:23:33,926 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 16 treesize of output 15 [2018-04-05 16:23:33,927 INFO L267 ElimStorePlain]: Start of recursive call 3: End of recursive call: and 1 xjuncts. [2018-04-05 16:23:33,934 INFO L267 ElimStorePlain]: Start of recursive call 2: 1 dim-1 vars, End of recursive call: and 1 xjuncts. [2018-04-05 16:23:33,988 INFO L267 ElimStorePlain]: Start of recursive call 1: 1 dim-0 vars, 1 dim-2 vars, End of recursive call: 1 dim-0 vars, and 1 xjuncts. [2018-04-05 16:23:33,988 INFO L202 ElimStorePlain]: Needed 3 recursive calls to eliminate 2 variables, input treesize:44, output treesize:40 [2018-04-05 16:23:34,110 INFO L700 Elim1Store]: detected not equals via solver [2018-04-05 16:23:34,147 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 32 treesize of output 33 [2018-04-05 16:23:34,155 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 [2018-04-05 16:23:34,156 INFO L267 ElimStorePlain]: Start of recursive call 3: End of recursive call: and 1 xjuncts. [2018-04-05 16:23:34,188 INFO L267 ElimStorePlain]: Start of recursive call 2: 1 dim-1 vars, End of recursive call: and 1 xjuncts. [2018-04-05 16:23:34,243 INFO L267 ElimStorePlain]: Start of recursive call 1: 1 dim-0 vars, 1 dim-2 vars, End of recursive call: 1 dim-0 vars, and 1 xjuncts. [2018-04-05 16:23:34,244 INFO L202 ElimStorePlain]: Needed 3 recursive calls to eliminate 2 variables, input treesize:55, output treesize:51 [2018-04-05 16:23:37,771 WARN L148 SmtUtils]: Spent 148ms on a formula simplification that was a NOOP. DAG size: 51 [2018-04-05 16:23:38,749 INFO L700 Elim1Store]: detected not equals via solver [2018-04-05 16:23:38,756 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 65 treesize of output 57 [2018-04-05 16:23:38,814 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 16 treesize of output 13 [2018-04-05 16:23:38,815 INFO L267 ElimStorePlain]: Start of recursive call 3: End of recursive call: and 2 xjuncts. [2018-04-05 16:23:38,904 INFO L700 Elim1Store]: detected not equals via solver [2018-04-05 16:23:38,910 INFO L700 Elim1Store]: detected not equals via solver [2018-04-05 16:23:38,917 INFO L700 Elim1Store]: detected not equals via solver [2018-04-05 16:23:38,939 INFO L477 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 4 select indices, 4 select index equivalence classes, 9 disjoint index pairs (out of 6 index pairs), introduced 3 new quantified variables, introduced 0 case distinctions, treesize of input 38 treesize of output 79 [2018-04-05 16:23:38,939 INFO L267 ElimStorePlain]: Start of recursive call 4: End of recursive call: and 1 xjuncts. [2018-04-05 16:23:39,012 INFO L267 ElimStorePlain]: Start of recursive call 2: 2 dim-1 vars, End of recursive call: and 2 xjuncts. [2018-04-05 16:23:39,229 INFO L267 ElimStorePlain]: Start of recursive call 1: 5 dim-0 vars, 1 dim-2 vars, End of recursive call: 6 dim-0 vars, and 2 xjuncts. [2018-04-05 16:23:39,234 INFO L202 ElimStorePlain]: Needed 4 recursive calls to eliminate 6 variables, input treesize:102, output treesize:244 [2018-04-05 16:23:39,783 WARN L151 SmtUtils]: Spent 278ms on a formula simplification. DAG size of input: 84 DAG size of output 38 [2018-04-05 16:23:40,721 INFO L134 CoverageAnalysis]: Checked inductivity of 54 backedges. 0 proven. 54 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-04-05 16:23:40,721 INFO L314 TraceCheckSpWp]: Computing backward predicates... [2018-04-05 16:23:44,786 WARN L148 SmtUtils]: Spent 121ms on a formula simplification that was a NOOP. DAG size: 34 [2018-04-05 16:23:45,280 WARN L148 SmtUtils]: Spent 112ms on a formula simplification that was a NOOP. DAG size: 35 [2018-04-05 16:23:48,237 WARN L148 SmtUtils]: Spent 110ms on a formula simplification that was a NOOP. DAG size: 43 [2018-04-05 16:23:48,676 WARN L148 SmtUtils]: Spent 139ms on a formula simplification that was a NOOP. DAG size: 45 [2018-04-05 16:23:49,076 WARN L148 SmtUtils]: Spent 107ms on a formula simplification that was a NOOP. DAG size: 45 [2018-04-05 16:23:49,662 WARN L151 SmtUtils]: Spent 264ms on a formula simplification. DAG size of input: 46 DAG size of output 34 [2018-04-05 16:23:50,392 WARN L148 SmtUtils]: Spent 137ms on a formula simplification that was a NOOP. DAG size: 34 [2018-04-05 16:23:53,017 INFO L477 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 2 new quantified variables, introduced 0 case distinctions, treesize of input 172 treesize of output 89 [2018-04-05 16:23:53,291 WARN L151 SmtUtils]: Spent 272ms on a formula simplification. DAG size of input: 53 DAG size of output 47 [2018-04-05 16:23:53,294 INFO L477 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 15 treesize of output 14 [2018-04-05 16:23:53,295 INFO L267 ElimStorePlain]: Start of recursive call 3: End of recursive call: and 1 xjuncts. [2018-04-05 16:23:53,435 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 55 treesize of output 53 [2018-04-05 16:23:53,703 WARN L151 SmtUtils]: Spent 266ms on a formula simplification. DAG size of input: 54 DAG size of output 51 [2018-04-05 16:23:53,708 INFO L477 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 1 select indices, 1 select index equivalence classes, 2 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 49 treesize of output 47 [2018-04-05 16:23:53,709 INFO L267 ElimStorePlain]: Start of recursive call 5: End of recursive call: and 1 xjuncts. [2018-04-05 16:23:53,822 INFO L682 Elim1Store]: detected equality via solver [2018-04-05 16:23:53,825 INFO L682 Elim1Store]: detected equality via solver [2018-04-05 16:23:53,829 INFO L682 Elim1Store]: detected equality via solver [2018-04-05 16:23:53,851 INFO L477 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 4 select indices, 4 select index equivalence classes, 9 disjoint index pairs (out of 6 index pairs), introduced 3 new quantified variables, introduced 0 case distinctions, treesize of input 44 treesize of output 74 [2018-04-05 16:23:53,851 INFO L267 ElimStorePlain]: Start of recursive call 6: End of recursive call: and 1 xjuncts. [2018-04-05 16:23:54,002 INFO L682 Elim1Store]: detected equality via solver [2018-04-05 16:23:54,006 INFO L682 Elim1Store]: detected equality via solver [2018-04-05 16:23:54,010 INFO L682 Elim1Store]: detected equality via solver [2018-04-05 16:23:54,130 INFO L477 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 5 select indices, 5 select index equivalence classes, 12 disjoint index pairs (out of 10 index pairs), introduced 4 new quantified variables, introduced 3 case distinctions, treesize of input 46 treesize of output 113 [2018-04-05 16:23:54,133 INFO L267 ElimStorePlain]: Start of recursive call 7: End of recursive call: and 8 xjuncts. [2018-04-05 16:23:54,373 INFO L267 ElimStorePlain]: Start of recursive call 4: 3 dim-1 vars, End of recursive call: and 2 xjuncts. [2018-04-05 16:23:54,588 INFO L267 ElimStorePlain]: Start of recursive call 2: 1 dim-1 vars, 1 dim-2 vars, End of recursive call: and 4 xjuncts. [2018-04-05 16:23:54,862 INFO L267 ElimStorePlain]: Start of recursive call 1: 2 dim-0 vars, 1 dim-2 vars, End of recursive call: and 2 xjuncts. [2018-04-05 16:23:54,862 INFO L202 ElimStorePlain]: Needed 7 recursive calls to eliminate 3 variables, input treesize:191, output treesize:571 [2018-04-05 16:23:56,979 WARN L151 SmtUtils]: Spent 1616ms on a formula simplification. DAG size of input: 94 DAG size of output 65 [2018-04-05 16:23:59,802 WARN L151 SmtUtils]: Spent 2337ms on a formula simplification. DAG size of input: 89 DAG size of output 74 [2018-04-05 16:24:01,725 WARN L151 SmtUtils]: Spent 1263ms on a formula simplification. DAG size of input: 168 DAG size of output 157 [2018-04-05 16:24:03,055 WARN L148 SmtUtils]: Spent 527ms on a formula simplification that was a NOOP. DAG size: 177 [2018-04-05 16:24:04,013 WARN L151 SmtUtils]: Spent 921ms on a formula simplification. DAG size of input: 229 DAG size of output 117 [2018-04-05 16:24:04,021 INFO L477 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 0 select indices, 0 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 29 treesize of output 32 [2018-04-05 16:24:04,151 WARN L151 SmtUtils]: Spent 128ms on a formula simplification. DAG size of input: 26 DAG size of output 22 [2018-04-05 16:24:04,153 INFO L477 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 1 select indices, 1 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 12 treesize of output 3 [2018-04-05 16:24:04,154 INFO L267 ElimStorePlain]: Start of recursive call 3: End of recursive call: and 1 xjuncts. [2018-04-05 16:24:04,205 INFO L267 ElimStorePlain]: Start of recursive call 2: 1 dim-1 vars, End of recursive call: and 1 xjuncts. [2018-04-05 16:24:04,599 INFO L477 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 1 select indices, 1 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 21 treesize of output 15 [2018-04-05 16:24:04,600 INFO L267 ElimStorePlain]: Start of recursive call 4: End of recursive call: and 1 xjuncts. [2018-04-05 16:24:04,981 INFO L477 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 0 select indices, 0 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 29 treesize of output 32 [2018-04-05 16:24:05,109 WARN L151 SmtUtils]: Spent 127ms on a formula simplification. DAG size of input: 25 DAG size of output 21 [2018-04-05 16:24:05,114 INFO L477 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 1 select indices, 1 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 12 treesize of output 3 [2018-04-05 16:24:05,115 INFO L267 ElimStorePlain]: Start of recursive call 6: End of recursive call: and 1 xjuncts. [2018-04-05 16:24:05,179 INFO L267 ElimStorePlain]: Start of recursive call 5: 1 dim-1 vars, End of recursive call: and 1 xjuncts. [2018-04-05 16:24:05,536 INFO L477 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 1 select indices, 1 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 21 treesize of output 15 [2018-04-05 16:24:05,536 INFO L267 ElimStorePlain]: Start of recursive call 7: End of recursive call: and 1 xjuncts. [2018-04-05 16:24:05,852 INFO L477 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 0 select indices, 0 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 27 treesize of output 30 [2018-04-05 16:24:05,975 WARN L151 SmtUtils]: Spent 121ms on a formula simplification. DAG size of input: 24 DAG size of output 20 [2018-04-05 16:24:05,981 INFO L477 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 1 select indices, 1 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 12 treesize of output 3 [2018-04-05 16:24:05,982 INFO L267 ElimStorePlain]: Start of recursive call 9: End of recursive call: and 1 xjuncts. [2018-04-05 16:24:06,017 INFO L267 ElimStorePlain]: Start of recursive call 8: 1 dim-1 vars, End of recursive call: and 1 xjuncts. [2018-04-05 16:24:06,345 INFO L477 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 1 select indices, 1 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 29 treesize of output 23 [2018-04-05 16:24:06,346 INFO L267 ElimStorePlain]: Start of recursive call 10: End of recursive call: and 1 xjuncts. [2018-04-05 16:24:06,819 INFO L477 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 0 select indices, 0 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 29 treesize of output 32 [2018-04-05 16:24:07,012 WARN L151 SmtUtils]: Spent 191ms on a formula simplification. DAG size of input: 28 DAG size of output 23 [2018-04-05 16:24:07,016 INFO L477 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 1 select indices, 1 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 12 treesize of output 3 [2018-04-05 16:24:07,017 INFO L267 ElimStorePlain]: Start of recursive call 12: End of recursive call: and 1 xjuncts. [2018-04-05 16:24:07,073 INFO L267 ElimStorePlain]: Start of recursive call 11: 1 dim-1 vars, End of recursive call: and 1 xjuncts. [2018-04-05 16:24:07,435 INFO L477 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 1 select indices, 1 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 29 treesize of output 23 [2018-04-05 16:24:07,436 INFO L267 ElimStorePlain]: Start of recursive call 13: End of recursive call: and 1 xjuncts. [2018-04-05 16:24:07,756 INFO L477 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 1 select indices, 1 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 21 treesize of output 15 [2018-04-05 16:24:07,757 INFO L267 ElimStorePlain]: Start of recursive call 14: End of recursive call: and 1 xjuncts. [2018-04-05 16:24:08,075 INFO L477 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 1 select indices, 1 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 19 treesize of output 13 [2018-04-05 16:24:08,076 INFO L267 ElimStorePlain]: Start of recursive call 15: End of recursive call: and 1 xjuncts. [2018-04-05 16:24:08,380 INFO L477 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 0 select indices, 0 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 23 treesize of output 26 [2018-04-05 16:24:08,502 WARN L151 SmtUtils]: Spent 120ms on a formula simplification. DAG size of input: 23 DAG size of output 18 [2018-04-05 16:24:08,505 INFO L477 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 1 select indices, 1 select index equivalence classes, 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 3 [2018-04-05 16:24:08,506 INFO L267 ElimStorePlain]: Start of recursive call 17: End of recursive call: and 1 xjuncts. [2018-04-05 16:24:08,546 INFO L267 ElimStorePlain]: Start of recursive call 16: 1 dim-1 vars, End of recursive call: and 1 xjuncts. [2018-04-05 16:24:08,883 INFO L477 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 0 select indices, 0 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 27 treesize of output 30 [2018-04-05 16:24:09,009 WARN L151 SmtUtils]: Spent 124ms on a formula simplification. DAG size of input: 24 DAG size of output 20 [2018-04-05 16:24:09,013 INFO L477 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 1 select indices, 1 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 12 treesize of output 3 [2018-04-05 16:24:09,014 INFO L267 ElimStorePlain]: Start of recursive call 19: End of recursive call: and 1 xjuncts. [2018-04-05 16:24:09,053 INFO L267 ElimStorePlain]: Start of recursive call 18: 1 dim-1 vars, End of recursive call: and 1 xjuncts. [2018-04-05 16:24:09,345 INFO L477 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 1 select indices, 1 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 19 treesize of output 13 [2018-04-05 16:24:09,346 INFO L267 ElimStorePlain]: Start of recursive call 20: End of recursive call: and 1 xjuncts. [2018-04-05 16:24:09,607 INFO L477 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 0 select indices, 0 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 23 treesize of output 26 [2018-04-05 16:24:09,721 WARN L151 SmtUtils]: Spent 112ms on a formula simplification. DAG size of input: 20 DAG size of output 16 [2018-04-05 16:24:09,729 INFO L477 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 1 select indices, 1 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 12 treesize of output 3 [2018-04-05 16:24:09,730 INFO L267 ElimStorePlain]: Start of recursive call 22: End of recursive call: and 1 xjuncts. [2018-04-05 16:24:09,760 INFO L267 ElimStorePlain]: Start of recursive call 21: 1 dim-1 vars, End of recursive call: and 1 xjuncts. [2018-04-05 16:24:10,018 INFO L267 ElimStorePlain]: Start of recursive call 1: 14 dim-0 vars, 14 dim-1 vars, End of recursive call: and 7 xjuncts. [2018-04-05 16:24:10,018 INFO L202 ElimStorePlain]: Needed 22 recursive calls to eliminate 48 variables, input treesize:527, output treesize:81 [2018-04-05 16:24:10,664 WARN L151 SmtUtils]: Spent 352ms on a formula simplification. DAG size of input: 24 DAG size of output 19 [2018-04-05 16:24:11,138 WARN L151 SmtUtils]: Spent 152ms on a formula simplification. DAG size of input: 17 DAG size of output 13 [2018-04-05 16:24:11,242 INFO L134 CoverageAnalysis]: Checked inductivity of 54 backedges. 0 proven. 54 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-04-05 16:24:11,278 INFO L320 seRefinementStrategy]: Constructing automaton from 0 perfect and 2 imperfect interpolant sequences. [2018-04-05 16:24:11,278 INFO L335 seRefinementStrategy]: Number of different interpolants: perfect sequences [] imperfect sequences [35, 35] total 68 [2018-04-05 16:24:11,278 INFO L442 AbstractCegarLoop]: Interpolant automaton has 69 states [2018-04-05 16:24:11,279 INFO L132 InterpolantAutomaton]: Constructing interpolant automaton starting with 69 interpolants. [2018-04-05 16:24:11,279 INFO L133 InterpolantAutomaton]: CoverageRelationStatistics Valid=310, Invalid=4382, Unknown=0, NotChecked=0, Total=4692 [2018-04-05 16:24:11,279 INFO L87 Difference]: Start difference. First operand 192 states and 203 transitions. Second operand 69 states. [2018-04-05 16:24:14,338 WARN L151 SmtUtils]: Spent 2332ms on a formula simplification. DAG size of input: 271 DAG size of output 209 [2018-04-05 16:24:16,864 WARN L151 SmtUtils]: Spent 1793ms on a formula simplification. DAG size of input: 268 DAG size of output 205 [2018-04-05 16:24:18,944 WARN L151 SmtUtils]: Spent 734ms on a formula simplification. DAG size of input: 263 DAG size of output 98 [2018-04-05 16:24:20,345 WARN L148 SmtUtils]: Spent 101ms on a formula simplification that was a NOOP. DAG size: 31 [2018-04-05 16:24:20,856 WARN L148 SmtUtils]: Spent 105ms on a formula simplification that was a NOOP. DAG size: 36 [2018-04-05 16:24:21,506 WARN L148 SmtUtils]: Spent 100ms on a formula simplification that was a NOOP. DAG size: 46 [2018-04-05 16:24:22,560 WARN L151 SmtUtils]: Spent 658ms on a formula simplification. DAG size of input: 52 DAG size of output 51 [2018-04-05 16:24:27,047 WARN L148 SmtUtils]: Spent 158ms on a formula simplification that was a NOOP. DAG size: 88 [2018-04-05 16:24:27,654 WARN L148 SmtUtils]: Spent 128ms on a formula simplification that was a NOOP. DAG size: 89 [2018-04-05 16:24:28,297 WARN L148 SmtUtils]: Spent 200ms on a formula simplification that was a NOOP. DAG size: 101 [2018-04-05 16:24:29,646 WARN L151 SmtUtils]: Spent 843ms on a formula simplification. DAG size of input: 142 DAG size of output 136 [2018-04-05 16:24:30,304 WARN L148 SmtUtils]: Spent 165ms on a formula simplification that was a NOOP. DAG size: 96 [2018-04-05 16:24:30,979 WARN L151 SmtUtils]: Spent 228ms on a formula simplification. DAG size of input: 121 DAG size of output 74 [2018-04-05 16:24:31,771 WARN L148 SmtUtils]: Spent 132ms on a formula simplification that was a NOOP. DAG size: 99 [2018-04-05 16:24:32,741 WARN L151 SmtUtils]: Spent 369ms on a formula simplification. DAG size of input: 84 DAG size of output 81 [2018-04-05 16:24:33,398 WARN L148 SmtUtils]: Spent 211ms on a formula simplification that was a NOOP. DAG size: 101 [2018-04-05 16:24:34,003 WARN L148 SmtUtils]: Spent 163ms on a formula simplification that was a NOOP. DAG size: 99 [2018-04-05 16:24:34,585 WARN L148 SmtUtils]: Spent 183ms on a formula simplification that was a NOOP. DAG size: 114 [2018-04-05 16:24:36,186 WARN L151 SmtUtils]: Spent 885ms on a formula simplification. DAG size of input: 146 DAG size of output 140 [2018-04-05 16:24:37,080 WARN L151 SmtUtils]: Spent 337ms on a formula simplification. DAG size of input: 108 DAG size of output 105 [2018-04-05 16:24:37,980 WARN L151 SmtUtils]: Spent 450ms on a formula simplification. DAG size of input: 91 DAG size of output 88 [2018-04-05 16:24:38,664 WARN L148 SmtUtils]: Spent 194ms on a formula simplification that was a NOOP. DAG size: 100 [2018-04-05 16:24:39,589 WARN L151 SmtUtils]: Spent 283ms on a formula simplification. DAG size of input: 80 DAG size of output 78 [2018-04-05 16:24:40,259 WARN L148 SmtUtils]: Spent 144ms on a formula simplification that was a NOOP. DAG size: 76 [2018-04-05 16:24:40,736 WARN L148 SmtUtils]: Spent 190ms on a formula simplification that was a NOOP. DAG size: 83 [2018-04-05 16:24:41,275 WARN L148 SmtUtils]: Spent 114ms on a formula simplification that was a NOOP. DAG size: 69 [2018-04-05 16:24:42,603 WARN L151 SmtUtils]: Spent 807ms on a formula simplification. DAG size of input: 106 DAG size of output 105