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 0.1.23-8168ed2-m [2018-04-11 20:44:05,158 INFO L170 SettingsManager]: Resetting all preferences to default values... [2018-04-11 20:44:05,160 INFO L174 SettingsManager]: Resetting UltimateCore preferences to default values [2018-04-11 20:44:05,175 INFO L177 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2018-04-11 20:44:05,175 INFO L174 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2018-04-11 20:44:05,176 INFO L174 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2018-04-11 20:44:05,177 INFO L174 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2018-04-11 20:44:05,179 INFO L174 SettingsManager]: Resetting LassoRanker preferences to default values [2018-04-11 20:44:05,181 INFO L174 SettingsManager]: Resetting Reaching Definitions preferences to default values [2018-04-11 20:44:05,182 INFO L174 SettingsManager]: Resetting SyntaxChecker preferences to default values [2018-04-11 20:44:05,183 INFO L177 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2018-04-11 20:44:05,183 INFO L174 SettingsManager]: Resetting LTL2Aut preferences to default values [2018-04-11 20:44:05,184 INFO L174 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2018-04-11 20:44:05,185 INFO L174 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2018-04-11 20:44:05,186 INFO L174 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2018-04-11 20:44:05,189 INFO L174 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2018-04-11 20:44:05,191 INFO L174 SettingsManager]: Resetting CodeCheck preferences to default values [2018-04-11 20:44:05,192 INFO L174 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2018-04-11 20:44:05,194 INFO L174 SettingsManager]: Resetting RCFGBuilder preferences to default values [2018-04-11 20:44:05,195 INFO L174 SettingsManager]: Resetting TraceAbstraction preferences to default values [2018-04-11 20:44:05,197 INFO L177 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... 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[2018-04-11 20:44:05,203 INFO L174 SettingsManager]: Resetting Witness Parser preferences to default values [2018-04-11 20:44:05,204 INFO L181 SettingsManager]: Finished resetting all preferences to default values... [2018-04-11 20:44:05,204 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 [2018-04-11 20:44:05,228 INFO L110 SettingsManager]: Loading preferences was successful [2018-04-11 20:44:05,229 INFO L112 SettingsManager]: Preferences different from defaults after loading the file: [2018-04-11 20:44:05,229 INFO L131 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2018-04-11 20:44:05,229 INFO L133 SettingsManager]: * ultimate.logging.details=de.uni_freiburg.informatik.ultimate.plugins.icfgtransformation=DEBUG; [2018-04-11 20:44:05,230 INFO L131 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2018-04-11 20:44:05,230 INFO L133 SettingsManager]: * to procedures, called more than once=true [2018-04-11 20:44:05,231 INFO L131 SettingsManager]: Preferences of Abstract Interpretation differ from their defaults: [2018-04-11 20:44:05,231 INFO L133 SettingsManager]: * Abstract domain for RCFG-of-the-future=VPDomain [2018-04-11 20:44:05,231 INFO L133 SettingsManager]: * Parallel states before merging=1 [2018-04-11 20:44:05,231 INFO L133 SettingsManager]: * Use the RCFG-of-the-future interface=true [2018-04-11 20:44:05,232 INFO L131 SettingsManager]: Preferences of LTL2Aut differ from their defaults: [2018-04-11 20:44:05,232 INFO L133 SettingsManager]: * Property to check=[] a a: x > 42 [2018-04-11 20:44:05,232 INFO L131 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2018-04-11 20:44:05,232 INFO L133 SettingsManager]: * sizeof long=4 [2018-04-11 20:44:05,233 INFO L133 SettingsManager]: * Check unreachability of error function in SV-COMP mode=false [2018-04-11 20:44:05,233 INFO L133 SettingsManager]: * Overapproximate operations on floating types=true [2018-04-11 20:44:05,233 INFO L133 SettingsManager]: * sizeof POINTER=4 [2018-04-11 20:44:05,233 INFO L133 SettingsManager]: * Check division by zero=IGNORE [2018-04-11 20:44:05,233 INFO L133 SettingsManager]: * Check for the main procedure if all allocated memory was freed=true [2018-04-11 20:44:05,234 INFO L133 SettingsManager]: * SV-COMP memtrack compatibility mode=true [2018-04-11 20:44:05,234 INFO L133 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2018-04-11 20:44:05,234 INFO L133 SettingsManager]: * sizeof long double=12 [2018-04-11 20:44:05,234 INFO L131 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2018-04-11 20:44:05,234 INFO L133 SettingsManager]: * Size of a code block=SingleStatement [2018-04-11 20:44:05,235 INFO L133 SettingsManager]: * Add additional assume for each assert=false [2018-04-11 20:44:05,235 INFO L133 SettingsManager]: * SMT solver=External_DefaultMode [2018-04-11 20:44:05,235 INFO L133 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2018-04-11 20:44:05,235 INFO L131 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2018-04-11 20:44:05,235 INFO L133 SettingsManager]: * Interpolant automaton=TWOTRACK [2018-04-11 20:44:05,236 INFO L133 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2018-04-11 20:44:05,236 INFO L133 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2018-04-11 20:44:05,236 INFO L133 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2018-04-11 20:44:05,236 INFO L133 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2018-04-11 20:44:05,236 INFO L133 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2018-04-11 20:44:05,237 INFO L131 SettingsManager]: Preferences of IcfgTransformer differ from their defaults: [2018-04-11 20:44:05,237 INFO L133 SettingsManager]: * TransformationType=HEAP_SEPARATOR [2018-04-11 20:44:05,238 INFO L131 SettingsManager]: Preferences of Boogie Printer differ from their defaults: [2018-04-11 20:44:05,238 INFO L133 SettingsManager]: * Dump path:=C:\Users\alex\AppData\Local\Temp\ [2018-04-11 20:44:05,273 INFO L81 nceAwareModelManager]: Repository-Root is: /tmp [2018-04-11 20:44:05,287 INFO L266 ainManager$Toolchain]: [Toolchain 1]: Parser(s) successfully (re)initialized [2018-04-11 20:44:05,291 INFO L222 ainManager$Toolchain]: [Toolchain 1]: Toolchain data selected. [2018-04-11 20:44:05,292 INFO L271 PluginConnector]: Initializing CDTParser... [2018-04-11 20:44:05,293 INFO L276 PluginConnector]: CDTParser initialized [2018-04-11 20:44:05,294 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 [2018-04-11 20:44:05,625 INFO L225 CDTParser]: Created temporary CDT project at /storage/ultimate/releaseScripts/default/UAutomizer-linux/data/FLAGf849ed0a5 [2018-04-11 20:44:05,798 INFO L287 CDTParser]: IsIndexed: true [2018-04-11 20:44:05,798 INFO L288 CDTParser]: Found 1 translation units. [2018-04-11 20:44:05,798 INFO L168 CDTParser]: Scanning openbsd_cstrncat-alloca_true-valid-memsafety_true-termination.i [2018-04-11 20:44:05,809 INFO L210 ultiparseSymbolTable]: Include resolver: [2018-04-11 20:44:05,809 INFO L215 ultiparseSymbolTable]: [2018-04-11 20:44:05,809 INFO L218 ultiparseSymbolTable]: Function table: [2018-04-11 20:44:05,809 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 [2018-04-11 20:44:05,809 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 [2018-04-11 20:44:05,810 INFO L221 ultiparseSymbolTable]: Function definition of null ('main') in openbsd_cstrncat-alloca_true-valid-memsafety_true-termination.i [2018-04-11 20:44:05,810 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 [2018-04-11 20:44:05,810 INFO L227 ultiparseSymbolTable]: Global variable table: [2018-04-11 20:44:05,810 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 [2018-04-11 20:44:05,810 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 [2018-04-11 20:44:05,810 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 [2018-04-11 20:44:05,810 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 [2018-04-11 20:44:05,810 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 [2018-04-11 20:44:05,810 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 [2018-04-11 20:44:05,811 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 [2018-04-11 20:44:05,811 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 [2018-04-11 20:44:05,811 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 [2018-04-11 20:44:05,811 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 [2018-04-11 20:44:05,811 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 [2018-04-11 20:44:05,811 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 [2018-04-11 20:44:05,811 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 [2018-04-11 20:44:05,811 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 [2018-04-11 20:44:05,811 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 [2018-04-11 20:44:05,811 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 [2018-04-11 20:44:05,811 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 [2018-04-11 20:44:05,812 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 [2018-04-11 20:44:05,812 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 [2018-04-11 20:44:05,812 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 [2018-04-11 20:44:05,812 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 [2018-04-11 20:44:05,812 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 [2018-04-11 20:44:05,812 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 [2018-04-11 20:44:05,812 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 [2018-04-11 20:44:05,812 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 [2018-04-11 20:44:05,812 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 [2018-04-11 20:44:05,813 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 [2018-04-11 20:44:05,813 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 [2018-04-11 20:44:05,813 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 [2018-04-11 20:44:05,813 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 [2018-04-11 20:44:05,813 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 [2018-04-11 20:44:05,813 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 [2018-04-11 20:44:05,813 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 [2018-04-11 20:44:05,813 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 [2018-04-11 20:44:05,813 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 [2018-04-11 20:44:05,814 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 [2018-04-11 20:44:05,814 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 [2018-04-11 20:44:05,814 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 [2018-04-11 20:44:05,814 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 [2018-04-11 20:44:05,814 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 [2018-04-11 20:44:05,814 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 [2018-04-11 20:44:05,814 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 [2018-04-11 20:44:05,814 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 [2018-04-11 20:44:05,815 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 [2018-04-11 20:44:05,815 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 [2018-04-11 20:44:05,815 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 [2018-04-11 20:44:05,815 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 [2018-04-11 20:44:05,815 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 [2018-04-11 20:44:05,815 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 [2018-04-11 20:44:05,815 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 [2018-04-11 20:44:05,816 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 [2018-04-11 20:44:05,816 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 [2018-04-11 20:44:05,816 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 [2018-04-11 20:44:05,816 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 [2018-04-11 20:44:05,816 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 [2018-04-11 20:44:05,816 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 [2018-04-11 20:44:05,816 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 [2018-04-11 20:44:05,816 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 [2018-04-11 20:44:05,816 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 [2018-04-11 20:44:05,816 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 [2018-04-11 20:44:05,817 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 [2018-04-11 20:44:05,817 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 [2018-04-11 20:44:05,817 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 [2018-04-11 20:44:05,817 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 [2018-04-11 20:44:05,817 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 [2018-04-11 20:44:05,817 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 [2018-04-11 20:44:05,817 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 [2018-04-11 20:44:05,817 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 [2018-04-11 20:44:05,818 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 [2018-04-11 20:44:05,818 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 [2018-04-11 20:44:05,818 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 [2018-04-11 20:44:05,818 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 [2018-04-11 20:44:05,818 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 [2018-04-11 20:44:05,818 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 [2018-04-11 20:44:05,818 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 [2018-04-11 20:44:05,818 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 [2018-04-11 20:44:05,818 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 [2018-04-11 20:44:05,819 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 [2018-04-11 20:44:05,819 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 [2018-04-11 20:44:05,819 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 [2018-04-11 20:44:05,819 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 [2018-04-11 20:44:05,819 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 [2018-04-11 20:44:05,819 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 [2018-04-11 20:44:05,819 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 [2018-04-11 20:44:05,819 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 [2018-04-11 20:44:05,819 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 [2018-04-11 20:44:05,819 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 [2018-04-11 20:44:05,819 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 [2018-04-11 20:44:05,819 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 [2018-04-11 20:44:05,819 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 [2018-04-11 20:44:05,819 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 [2018-04-11 20:44:05,820 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 [2018-04-11 20:44:05,820 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 [2018-04-11 20:44:05,820 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 [2018-04-11 20:44:05,820 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 [2018-04-11 20:44:05,820 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 [2018-04-11 20:44:05,820 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 [2018-04-11 20:44:05,820 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 [2018-04-11 20:44:05,820 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 [2018-04-11 20:44:05,820 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 [2018-04-11 20:44:05,820 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 [2018-04-11 20:44:05,821 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 [2018-04-11 20:44:05,821 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 [2018-04-11 20:44:05,821 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 [2018-04-11 20:44:05,821 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 [2018-04-11 20:44:05,821 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 [2018-04-11 20:44:05,821 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 [2018-04-11 20:44:05,821 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 [2018-04-11 20:44:05,821 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 [2018-04-11 20:44:05,822 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 [2018-04-11 20:44:05,822 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 [2018-04-11 20:44:05,822 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 [2018-04-11 20:44:05,822 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 [2018-04-11 20:44:05,822 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 [2018-04-11 20:44:05,822 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 [2018-04-11 20:44:05,822 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 [2018-04-11 20:44:05,822 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 [2018-04-11 20:44:05,822 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 [2018-04-11 20:44:05,823 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 [2018-04-11 20:44:05,823 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 [2018-04-11 20:44:05,840 INFO L330 CDTParser]: Deleted temporary CDT project at /storage/ultimate/releaseScripts/default/UAutomizer-linux/data/FLAGf849ed0a5 [2018-04-11 20:44:05,844 INFO L304 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2018-04-11 20:44:05,847 INFO L131 ToolchainWalker]: Walking toolchain with 4 elements. [2018-04-11 20:44:05,848 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2018-04-11 20:44:05,848 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2018-04-11 20:44:05,855 INFO L276 PluginConnector]: CACSL2BoogieTranslator initialized [2018-04-11 20:44:05,856 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 11.04 08:44:05" (1/1) ... [2018-04-11 20:44:05,859 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@6ee0cd35 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 11.04 08:44:05, skipping insertion in model container [2018-04-11 20:44:05,859 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 11.04 08:44:05" (1/1) ... [2018-04-11 20:44:05,876 INFO L167 Dispatcher]: Using SV-COMP mode [2018-04-11 20:44:05,905 INFO L167 Dispatcher]: Using SV-COMP mode [2018-04-11 20:44:06,068 INFO L175 PostProcessor]: Settings: Checked method=main [2018-04-11 20:44:06,115 INFO L175 PostProcessor]: Settings: Checked method=main [2018-04-11 20:44:06,123 INFO L100 SccComputation]: Graph consists of 0 InCaSumBalls and 112 non ball SCCs. Number of states in SCCs 112. [2018-04-11 20:44:06,169 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 11.04 08:44:06 WrapperNode [2018-04-11 20:44:06,170 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2018-04-11 20:44:06,170 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2018-04-11 20:44:06,171 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2018-04-11 20:44:06,171 INFO L276 PluginConnector]: Boogie Preprocessor initialized [2018-04-11 20:44:06,185 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 11.04 08:44:06" (1/1) ... [2018-04-11 20:44:06,185 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 11.04 08:44:06" (1/1) ... [2018-04-11 20:44:06,200 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 11.04 08:44:06" (1/1) ... [2018-04-11 20:44:06,200 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 11.04 08:44:06" (1/1) ... [2018-04-11 20:44:06,212 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 11.04 08:44:06" (1/1) ... [2018-04-11 20:44:06,218 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 11.04 08:44:06" (1/1) ... [2018-04-11 20:44:06,222 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 11.04 08:44:06" (1/1) ... [2018-04-11 20:44:06,227 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2018-04-11 20:44:06,228 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2018-04-11 20:44:06,228 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2018-04-11 20:44:06,228 INFO L276 PluginConnector]: RCFGBuilder initialized [2018-04-11 20:44:06,229 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 11.04 08:44:06" (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 [2018-04-11 20:44:06,363 INFO L136 BoogieDeclarations]: Found implementation of procedure ULTIMATE.init [2018-04-11 20:44:06,364 INFO L136 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2018-04-11 20:44:06,364 INFO L136 BoogieDeclarations]: Found implementation of procedure __U_MULTI_fopenbsd_cstrncat_alloca_true_valid_memsafety_true_termination_i____bswap_32 [2018-04-11 20:44:06,364 INFO L136 BoogieDeclarations]: Found implementation of procedure __U_MULTI_fopenbsd_cstrncat_alloca_true_valid_memsafety_true_termination_i____bswap_64 [2018-04-11 20:44:06,364 INFO L136 BoogieDeclarations]: Found implementation of procedure __U_MULTI_fopenbsd_cstrncat_alloca_true_valid_memsafety_true_termination_i__cstrncat [2018-04-11 20:44:06,364 INFO L136 BoogieDeclarations]: Found implementation of procedure main [2018-04-11 20:44:06,364 INFO L128 BoogieDeclarations]: Found specification of procedure __U_MULTI_fopenbsd_cstrncat_alloca_true_valid_memsafety_true_termination_i____bswap_32 [2018-04-11 20:44:06,364 INFO L128 BoogieDeclarations]: Found specification of procedure __U_MULTI_fopenbsd_cstrncat_alloca_true_valid_memsafety_true_termination_i____bswap_64 [2018-04-11 20:44:06,364 INFO L128 BoogieDeclarations]: Found specification of procedure __ctype_get_mb_cur_max [2018-04-11 20:44:06,365 INFO L128 BoogieDeclarations]: Found specification of procedure atof [2018-04-11 20:44:06,365 INFO L128 BoogieDeclarations]: Found specification of procedure atoi [2018-04-11 20:44:06,365 INFO L128 BoogieDeclarations]: Found specification of procedure atol [2018-04-11 20:44:06,365 INFO L128 BoogieDeclarations]: Found specification of procedure atoll [2018-04-11 20:44:06,365 INFO L128 BoogieDeclarations]: Found specification of procedure strtod [2018-04-11 20:44:06,365 INFO L128 BoogieDeclarations]: Found specification of procedure strtof [2018-04-11 20:44:06,366 INFO L128 BoogieDeclarations]: Found specification of procedure strtold [2018-04-11 20:44:06,366 INFO L128 BoogieDeclarations]: Found specification of procedure strtol [2018-04-11 20:44:06,366 INFO L128 BoogieDeclarations]: Found specification of procedure strtoul [2018-04-11 20:44:06,366 INFO L128 BoogieDeclarations]: Found specification of procedure strtoq [2018-04-11 20:44:06,366 INFO L128 BoogieDeclarations]: Found specification of procedure strtouq [2018-04-11 20:44:06,366 INFO L128 BoogieDeclarations]: Found specification of procedure strtoll [2018-04-11 20:44:06,366 INFO L128 BoogieDeclarations]: Found specification of procedure strtoull [2018-04-11 20:44:06,367 INFO L128 BoogieDeclarations]: Found specification of procedure l64a [2018-04-11 20:44:06,367 INFO L128 BoogieDeclarations]: Found specification of procedure a64l [2018-04-11 20:44:06,367 INFO L128 BoogieDeclarations]: Found specification of procedure select [2018-04-11 20:44:06,367 INFO L128 BoogieDeclarations]: Found specification of procedure pselect [2018-04-11 20:44:06,367 INFO L128 BoogieDeclarations]: Found specification of procedure gnu_dev_major [2018-04-11 20:44:06,367 INFO L128 BoogieDeclarations]: Found specification of procedure gnu_dev_minor [2018-04-11 20:44:06,367 INFO L128 BoogieDeclarations]: Found specification of procedure gnu_dev_makedev [2018-04-11 20:44:06,367 INFO L128 BoogieDeclarations]: Found specification of procedure random [2018-04-11 20:44:06,367 INFO L128 BoogieDeclarations]: Found specification of procedure srandom [2018-04-11 20:44:06,367 INFO L128 BoogieDeclarations]: Found specification of procedure initstate [2018-04-11 20:44:06,368 INFO L128 BoogieDeclarations]: Found specification of procedure setstate [2018-04-11 20:44:06,368 INFO L128 BoogieDeclarations]: Found specification of procedure random_r [2018-04-11 20:44:06,368 INFO L128 BoogieDeclarations]: Found specification of procedure srandom_r [2018-04-11 20:44:06,368 INFO L128 BoogieDeclarations]: Found specification of procedure initstate_r [2018-04-11 20:44:06,368 INFO L128 BoogieDeclarations]: Found specification of procedure setstate_r [2018-04-11 20:44:06,368 INFO L128 BoogieDeclarations]: Found specification of procedure rand [2018-04-11 20:44:06,368 INFO L128 BoogieDeclarations]: Found specification of procedure srand [2018-04-11 20:44:06,368 INFO L128 BoogieDeclarations]: Found specification of procedure rand_r [2018-04-11 20:44:06,369 INFO L128 BoogieDeclarations]: Found specification of procedure drand48 [2018-04-11 20:44:06,369 INFO L128 BoogieDeclarations]: Found specification of procedure erand48 [2018-04-11 20:44:06,369 INFO L128 BoogieDeclarations]: Found specification of procedure lrand48 [2018-04-11 20:44:06,369 INFO L128 BoogieDeclarations]: Found specification of procedure nrand48 [2018-04-11 20:44:06,369 INFO L128 BoogieDeclarations]: Found specification of procedure mrand48 [2018-04-11 20:44:06,369 INFO L128 BoogieDeclarations]: Found specification of procedure jrand48 [2018-04-11 20:44:06,369 INFO L128 BoogieDeclarations]: Found specification of procedure srand48 [2018-04-11 20:44:06,369 INFO L128 BoogieDeclarations]: Found specification of procedure seed48 [2018-04-11 20:44:06,370 INFO L128 BoogieDeclarations]: Found specification of procedure lcong48 [2018-04-11 20:44:06,370 INFO L128 BoogieDeclarations]: Found specification of procedure drand48_r [2018-04-11 20:44:06,370 INFO L128 BoogieDeclarations]: Found specification of procedure erand48_r [2018-04-11 20:44:06,370 INFO L128 BoogieDeclarations]: Found specification of procedure lrand48_r [2018-04-11 20:44:06,370 INFO L128 BoogieDeclarations]: Found specification of procedure nrand48_r [2018-04-11 20:44:06,370 INFO L128 BoogieDeclarations]: Found specification of procedure mrand48_r [2018-04-11 20:44:06,370 INFO L128 BoogieDeclarations]: Found specification of procedure jrand48_r [2018-04-11 20:44:06,370 INFO L128 BoogieDeclarations]: Found specification of procedure srand48_r [2018-04-11 20:44:06,370 INFO L128 BoogieDeclarations]: Found specification of procedure seed48_r [2018-04-11 20:44:06,370 INFO L128 BoogieDeclarations]: Found specification of procedure lcong48_r [2018-04-11 20:44:06,370 INFO L128 BoogieDeclarations]: Found specification of procedure malloc [2018-04-11 20:44:06,370 INFO L128 BoogieDeclarations]: Found specification of procedure calloc [2018-04-11 20:44:06,371 INFO L128 BoogieDeclarations]: Found specification of procedure realloc [2018-04-11 20:44:06,371 INFO L128 BoogieDeclarations]: Found specification of procedure free [2018-04-11 20:44:06,371 INFO L128 BoogieDeclarations]: Found specification of procedure cfree [2018-04-11 20:44:06,371 INFO L128 BoogieDeclarations]: Found specification of procedure alloca [2018-04-11 20:44:06,371 INFO L128 BoogieDeclarations]: Found specification of procedure valloc [2018-04-11 20:44:06,371 INFO L128 BoogieDeclarations]: Found specification of procedure posix_memalign [2018-04-11 20:44:06,371 INFO L128 BoogieDeclarations]: Found specification of procedure abort [2018-04-11 20:44:06,371 INFO L128 BoogieDeclarations]: Found specification of procedure atexit [2018-04-11 20:44:06,371 INFO L128 BoogieDeclarations]: Found specification of procedure on_exit [2018-04-11 20:44:06,371 INFO L128 BoogieDeclarations]: Found specification of procedure exit [2018-04-11 20:44:06,371 INFO L128 BoogieDeclarations]: Found specification of procedure _Exit [2018-04-11 20:44:06,371 INFO L128 BoogieDeclarations]: Found specification of procedure getenv [2018-04-11 20:44:06,371 INFO L128 BoogieDeclarations]: Found specification of procedure putenv [2018-04-11 20:44:06,371 INFO L128 BoogieDeclarations]: Found specification of procedure setenv [2018-04-11 20:44:06,372 INFO L128 BoogieDeclarations]: Found specification of procedure unsetenv [2018-04-11 20:44:06,372 INFO L128 BoogieDeclarations]: Found specification of procedure clearenv [2018-04-11 20:44:06,372 INFO L128 BoogieDeclarations]: Found specification of procedure mktemp [2018-04-11 20:44:06,372 INFO L128 BoogieDeclarations]: Found specification of procedure mkstemp [2018-04-11 20:44:06,372 INFO L128 BoogieDeclarations]: Found specification of procedure mkstemps [2018-04-11 20:44:06,372 INFO L128 BoogieDeclarations]: Found specification of procedure mkdtemp [2018-04-11 20:44:06,372 INFO L128 BoogieDeclarations]: Found specification of procedure system [2018-04-11 20:44:06,372 INFO L128 BoogieDeclarations]: Found specification of procedure realpath [2018-04-11 20:44:06,372 INFO L128 BoogieDeclarations]: Found specification of procedure bsearch [2018-04-11 20:44:06,372 INFO L128 BoogieDeclarations]: Found specification of procedure qsort [2018-04-11 20:44:06,372 INFO L128 BoogieDeclarations]: Found specification of procedure abs [2018-04-11 20:44:06,373 INFO L128 BoogieDeclarations]: Found specification of procedure labs [2018-04-11 20:44:06,373 INFO L128 BoogieDeclarations]: Found specification of procedure llabs [2018-04-11 20:44:06,373 INFO L128 BoogieDeclarations]: Found specification of procedure div [2018-04-11 20:44:06,373 INFO L128 BoogieDeclarations]: Found specification of procedure ldiv [2018-04-11 20:44:06,373 INFO L128 BoogieDeclarations]: Found specification of procedure lldiv [2018-04-11 20:44:06,373 INFO L128 BoogieDeclarations]: Found specification of procedure ecvt [2018-04-11 20:44:06,373 INFO L128 BoogieDeclarations]: Found specification of procedure fcvt [2018-04-11 20:44:06,373 INFO L128 BoogieDeclarations]: Found specification of procedure gcvt [2018-04-11 20:44:06,374 INFO L128 BoogieDeclarations]: Found specification of procedure qecvt [2018-04-11 20:44:06,374 INFO L128 BoogieDeclarations]: Found specification of procedure qfcvt [2018-04-11 20:44:06,374 INFO L128 BoogieDeclarations]: Found specification of procedure qgcvt [2018-04-11 20:44:06,374 INFO L128 BoogieDeclarations]: Found specification of procedure ecvt_r [2018-04-11 20:44:06,374 INFO L128 BoogieDeclarations]: Found specification of procedure fcvt_r [2018-04-11 20:44:06,374 INFO L128 BoogieDeclarations]: Found specification of procedure qecvt_r [2018-04-11 20:44:06,374 INFO L128 BoogieDeclarations]: Found specification of procedure qfcvt_r [2018-04-11 20:44:06,374 INFO L128 BoogieDeclarations]: Found specification of procedure mblen [2018-04-11 20:44:06,375 INFO L128 BoogieDeclarations]: Found specification of procedure mbtowc [2018-04-11 20:44:06,375 INFO L128 BoogieDeclarations]: Found specification of procedure wctomb [2018-04-11 20:44:06,375 INFO L128 BoogieDeclarations]: Found specification of procedure mbstowcs [2018-04-11 20:44:06,375 INFO L128 BoogieDeclarations]: Found specification of procedure wcstombs [2018-04-11 20:44:06,375 INFO L128 BoogieDeclarations]: Found specification of procedure rpmatch [2018-04-11 20:44:06,375 INFO L128 BoogieDeclarations]: Found specification of procedure getsubopt [2018-04-11 20:44:06,375 INFO L128 BoogieDeclarations]: Found specification of procedure getloadavg [2018-04-11 20:44:06,375 INFO L128 BoogieDeclarations]: Found specification of procedure __VERIFIER_nondet_int [2018-04-11 20:44:06,376 INFO L128 BoogieDeclarations]: Found specification of procedure __U_MULTI_fopenbsd_cstrncat_alloca_true_valid_memsafety_true_termination_i__cstrncat [2018-04-11 20:44:06,376 INFO L128 BoogieDeclarations]: Found specification of procedure read~int [2018-04-11 20:44:06,376 INFO L128 BoogieDeclarations]: Found specification of procedure write~int [2018-04-11 20:44:06,376 INFO L128 BoogieDeclarations]: Found specification of procedure main [2018-04-11 20:44:06,376 INFO L128 BoogieDeclarations]: Found specification of procedure #Ultimate.alloc [2018-04-11 20:44:06,376 INFO L128 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2018-04-11 20:44:06,376 INFO L128 BoogieDeclarations]: Found specification of procedure ULTIMATE.init [2018-04-11 20:44:06,376 INFO L128 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2018-04-11 20:44:06,377 INFO L128 BoogieDeclarations]: Found specification of procedure write~unchecked~int [2018-04-11 20:44:06,754 INFO L259 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2018-04-11 20:44:06,754 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 11.04 08:44:06 BoogieIcfgContainer [2018-04-11 20:44:06,754 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2018-04-11 20:44:06,755 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2018-04-11 20:44:06,755 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2018-04-11 20:44:06,757 INFO L276 PluginConnector]: TraceAbstraction initialized [2018-04-11 20:44:06,758 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 11.04 08:44:05" (1/3) ... [2018-04-11 20:44:06,758 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@36e25c06 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 11.04 08:44:06, skipping insertion in model container [2018-04-11 20:44:06,758 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 11.04 08:44:06" (2/3) ... [2018-04-11 20:44:06,759 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@36e25c06 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 11.04 08:44:06, skipping insertion in model container [2018-04-11 20:44:06,759 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 11.04 08:44:06" (3/3) ... [2018-04-11 20:44:06,761 INFO L107 eAbstractionObserver]: Analyzing ICFG openbsd_cstrncat-alloca_true-valid-memsafety_true-termination.i [2018-04-11 20:44:06,771 INFO L131 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2018-04-11 20:44:06,778 INFO L143 ceAbstractionStarter]: Appying trace abstraction to program that has 13 error locations. [2018-04-11 20:44:06,823 INFO L128 ementStrategyFactory]: Using default assertion order modulation [2018-04-11 20:44:06,824 INFO L369 AbstractCegarLoop]: Interprodecural is true [2018-04-11 20:44:06,824 INFO L370 AbstractCegarLoop]: Hoare is true [2018-04-11 20:44:06,824 INFO L371 AbstractCegarLoop]: Compute interpolants for FPandBP [2018-04-11 20:44:06,824 INFO L372 AbstractCegarLoop]: Backedges is TWOTRACK [2018-04-11 20:44:06,824 INFO L373 AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2018-04-11 20:44:06,825 INFO L374 AbstractCegarLoop]: Difference is false [2018-04-11 20:44:06,825 INFO L375 AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA [2018-04-11 20:44:06,825 INFO L380 AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == AllErrorsAtOnce======== [2018-04-11 20:44:06,826 INFO L87 2NestedWordAutomaton]: Mode: main mode - execution starts in main procedure [2018-04-11 20:44:06,840 INFO L276 IsEmpty]: Start isEmpty. Operand 89 states. [2018-04-11 20:44:06,845 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 22 [2018-04-11 20:44:06,845 INFO L347 BasicCegarLoop]: Found error trace [2018-04-11 20:44:06,846 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] [2018-04-11 20:44:06,846 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]=== [2018-04-11 20:44:06,851 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 [2018-04-11 20:44:06,864 INFO L68 tionRefinementEngine]: Using refinement strategy FixedRefinementStrategy [2018-04-11 20:44:06,895 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-04-11 20:44:06,903 INFO L270 TraceCheckSpWp]: Computing forward predicates... [2018-04-11 20:44:06,943 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-04-11 20:44:06,943 INFO L314 TraceCheckSpWp]: Computing backward predicates... [2018-04-11 20:44:06,971 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-04-11 20:44:06,994 INFO L320 seRefinementStrategy]: Constructing automaton from 2 perfect and 0 imperfect interpolant sequences. [2018-04-11 20:44:06,994 INFO L335 seRefinementStrategy]: Number of different interpolants: perfect sequences [2, 2] imperfect sequences [] total 2 [2018-04-11 20:44:06,996 INFO L442 AbstractCegarLoop]: Interpolant automaton has 3 states [2018-04-11 20:44:07,006 INFO L132 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2018-04-11 20:44:07,006 INFO L133 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2018-04-11 20:44:07,008 INFO L87 Difference]: Start difference. First operand 89 states. Second operand 3 states. [2018-04-11 20:44:07,092 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-04-11 20:44:07,092 INFO L93 Difference]: Finished difference Result 129 states and 141 transitions. [2018-04-11 20:44:07,093 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2018-04-11 20:44:07,094 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 21 [2018-04-11 20:44:07,095 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-04-11 20:44:07,106 INFO L225 Difference]: With dead ends: 129 [2018-04-11 20:44:07,106 INFO L226 Difference]: Without dead ends: 85 [2018-04-11 20:44:07,110 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 [2018-04-11 20:44:07,128 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 85 states. [2018-04-11 20:44:07,149 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 85 to 85. [2018-04-11 20:44:07,150 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 85 states. [2018-04-11 20:44:07,152 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 85 states to 85 states and 91 transitions. [2018-04-11 20:44:07,153 INFO L78 Accepts]: Start accepts. Automaton has 85 states and 91 transitions. Word has length 21 [2018-04-11 20:44:07,153 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-04-11 20:44:07,153 INFO L459 AbstractCegarLoop]: Abstraction has 85 states and 91 transitions. [2018-04-11 20:44:07,153 INFO L460 AbstractCegarLoop]: Interpolant automaton has 3 states. [2018-04-11 20:44:07,153 INFO L276 IsEmpty]: Start isEmpty. Operand 85 states and 91 transitions. [2018-04-11 20:44:07,154 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 25 [2018-04-11 20:44:07,154 INFO L347 BasicCegarLoop]: Found error trace [2018-04-11 20:44:07,154 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] [2018-04-11 20:44:07,154 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]=== [2018-04-11 20:44:07,155 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 [2018-04-11 20:44:07,161 INFO L68 tionRefinementEngine]: Using refinement strategy FixedRefinementStrategy [2018-04-11 20:44:07,180 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-04-11 20:44:07,183 INFO L270 TraceCheckSpWp]: Computing forward predicates... [2018-04-11 20:44:07,224 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 [2018-04-11 20:44:07,226 INFO L267 ElimStorePlain]: Start of recursive call 2: End of recursive call: and 1 xjuncts. [2018-04-11 20:44:07,229 INFO L267 ElimStorePlain]: Start of recursive call 1: 1 dim-1 vars, End of recursive call: and 1 xjuncts. [2018-04-11 20:44:07,230 INFO L202 ElimStorePlain]: Needed 2 recursive calls to eliminate 1 variables, input treesize:6, output treesize:5 [2018-04-11 20:44:07,255 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 [2018-04-11 20:44:07,256 INFO L267 ElimStorePlain]: Start of recursive call 2: End of recursive call: and 1 xjuncts. [2018-04-11 20:44:07,262 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. [2018-04-11 20:44:07,262 INFO L202 ElimStorePlain]: Needed 2 recursive calls to eliminate 2 variables, input treesize:12, output treesize:11 [2018-04-11 20:44:07,277 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-04-11 20:44:07,277 INFO L314 TraceCheckSpWp]: Computing backward predicates... [2018-04-11 20:44:07,298 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-04-11 20:44:07,329 INFO L320 seRefinementStrategy]: Constructing automaton from 2 perfect and 0 imperfect interpolant sequences. [2018-04-11 20:44:07,329 INFO L335 seRefinementStrategy]: Number of different interpolants: perfect sequences [3, 3] imperfect sequences [] total 3 [2018-04-11 20:44:07,331 INFO L442 AbstractCegarLoop]: Interpolant automaton has 4 states [2018-04-11 20:44:07,331 INFO L132 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2018-04-11 20:44:07,331 INFO L133 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2018-04-11 20:44:07,332 INFO L87 Difference]: Start difference. First operand 85 states and 91 transitions. Second operand 4 states. [2018-04-11 20:44:07,424 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-04-11 20:44:07,424 INFO L93 Difference]: Finished difference Result 85 states and 91 transitions. [2018-04-11 20:44:07,425 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2018-04-11 20:44:07,425 INFO L78 Accepts]: Start accepts. Automaton has 4 states. Word has length 24 [2018-04-11 20:44:07,425 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-04-11 20:44:07,427 INFO L225 Difference]: With dead ends: 85 [2018-04-11 20:44:07,427 INFO L226 Difference]: Without dead ends: 84 [2018-04-11 20:44:07,428 INFO L567 BasicCegarLoop]: 0 DeclaredPredicates, 48 GetRequests, 43 SyntacticMatches, 2 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2018-04-11 20:44:07,429 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 84 states. [2018-04-11 20:44:07,436 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 84 to 84. [2018-04-11 20:44:07,436 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 84 states. [2018-04-11 20:44:07,438 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 84 states to 84 states and 90 transitions. [2018-04-11 20:44:07,438 INFO L78 Accepts]: Start accepts. Automaton has 84 states and 90 transitions. Word has length 24 [2018-04-11 20:44:07,439 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-04-11 20:44:07,439 INFO L459 AbstractCegarLoop]: Abstraction has 84 states and 90 transitions. [2018-04-11 20:44:07,439 INFO L460 AbstractCegarLoop]: Interpolant automaton has 4 states. [2018-04-11 20:44:07,439 INFO L276 IsEmpty]: Start isEmpty. Operand 84 states and 90 transitions. [2018-04-11 20:44:07,440 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 25 [2018-04-11 20:44:07,440 INFO L347 BasicCegarLoop]: Found error trace [2018-04-11 20:44:07,440 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] [2018-04-11 20:44:07,440 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]=== [2018-04-11 20:44:07,441 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 [2018-04-11 20:44:07,451 INFO L68 tionRefinementEngine]: Using refinement strategy FixedRefinementStrategy [2018-04-11 20:44:07,471 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-04-11 20:44:07,474 INFO L270 TraceCheckSpWp]: Computing forward predicates... [2018-04-11 20:44:07,521 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 [2018-04-11 20:44:07,521 INFO L267 ElimStorePlain]: Start of recursive call 2: End of recursive call: and 1 xjuncts. [2018-04-11 20:44:07,540 INFO L477 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 6 treesize of output 5 [2018-04-11 20:44:07,541 INFO L267 ElimStorePlain]: Start of recursive call 3: End of recursive call: and 1 xjuncts. [2018-04-11 20:44:07,559 INFO L267 ElimStorePlain]: Start of recursive call 1: 2 dim-1 vars, End of recursive call: and 1 xjuncts. [2018-04-11 20:44:07,559 INFO L202 ElimStorePlain]: Needed 3 recursive calls to eliminate 2 variables, input treesize:27, output treesize:25 [2018-04-11 20:44:07,620 INFO L700 Elim1Store]: detected not equals via solver [2018-04-11 20:44:07,621 INFO L700 Elim1Store]: detected not equals via solver [2018-04-11 20:44:07,623 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 [2018-04-11 20:44:07,623 INFO L267 ElimStorePlain]: Start of recursive call 2: End of recursive call: and 1 xjuncts. [2018-04-11 20:44:07,688 INFO L700 Elim1Store]: detected not equals via solver [2018-04-11 20:44:07,689 INFO L700 Elim1Store]: detected not equals via solver [2018-04-11 20:44:07,690 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 [2018-04-11 20:44:07,690 INFO L267 ElimStorePlain]: Start of recursive call 3: End of recursive call: and 1 xjuncts. [2018-04-11 20:44:07,706 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. [2018-04-11 20:44:07,707 INFO L202 ElimStorePlain]: Needed 3 recursive calls to eliminate 4 variables, input treesize:36, output treesize:24 [2018-04-11 20:44:07,747 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-04-11 20:44:07,747 INFO L314 TraceCheckSpWp]: Computing backward predicates... [2018-04-11 20:44:07,937 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 [2018-04-11 20:44:07,938 INFO L267 ElimStorePlain]: Start of recursive call 2: End of recursive call: and 1 xjuncts. [2018-04-11 20:44:07,948 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 [2018-04-11 20:44:07,977 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 [2018-04-11 20:44:07,977 INFO L267 ElimStorePlain]: Start of recursive call 4: End of recursive call: and 1 xjuncts. [2018-04-11 20:44:07,981 INFO L267 ElimStorePlain]: Start of recursive call 3: 1 dim-1 vars, End of recursive call: and 1 xjuncts. [2018-04-11 20:44:07,990 INFO L267 ElimStorePlain]: Start of recursive call 1: 2 dim-0 vars, 2 dim-1 vars, End of recursive call: and 2 xjuncts. [2018-04-11 20:44:07,990 INFO L202 ElimStorePlain]: Needed 4 recursive calls to eliminate 4 variables, input treesize:29, output treesize:9 [2018-04-11 20:44:08,054 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-04-11 20:44:08,086 INFO L320 seRefinementStrategy]: Constructing automaton from 2 perfect and 0 imperfect interpolant sequences. [2018-04-11 20:44:08,086 INFO L335 seRefinementStrategy]: Number of different interpolants: perfect sequences [7, 7] imperfect sequences [] total 12 [2018-04-11 20:44:08,087 INFO L442 AbstractCegarLoop]: Interpolant automaton has 13 states [2018-04-11 20:44:08,087 INFO L132 InterpolantAutomaton]: Constructing interpolant automaton starting with 13 interpolants. [2018-04-11 20:44:08,087 INFO L133 InterpolantAutomaton]: CoverageRelationStatistics Valid=45, Invalid=111, Unknown=0, NotChecked=0, Total=156 [2018-04-11 20:44:08,088 INFO L87 Difference]: Start difference. First operand 84 states and 90 transitions. Second operand 13 states. [2018-04-11 20:44:08,337 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-04-11 20:44:08,337 INFO L93 Difference]: Finished difference Result 84 states and 90 transitions. [2018-04-11 20:44:08,339 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2018-04-11 20:44:08,339 INFO L78 Accepts]: Start accepts. Automaton has 13 states. Word has length 24 [2018-04-11 20:44:08,339 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-04-11 20:44:08,340 INFO L225 Difference]: With dead ends: 84 [2018-04-11 20:44:08,341 INFO L226 Difference]: Without dead ends: 83 [2018-04-11 20:44:08,341 INFO L567 BasicCegarLoop]: 0 DeclaredPredicates, 50 GetRequests, 35 SyntacticMatches, 1 SemanticMatches, 14 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 40 ImplicationChecksByTransitivity, 0.3s TimeCoverageRelationStatistics Valid=81, Invalid=159, Unknown=0, NotChecked=0, Total=240 [2018-04-11 20:44:08,342 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 83 states. [2018-04-11 20:44:08,346 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 83 to 83. [2018-04-11 20:44:08,346 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 83 states. [2018-04-11 20:44:08,348 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 83 states to 83 states and 89 transitions. [2018-04-11 20:44:08,348 INFO L78 Accepts]: Start accepts. Automaton has 83 states and 89 transitions. Word has length 24 [2018-04-11 20:44:08,348 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-04-11 20:44:08,348 INFO L459 AbstractCegarLoop]: Abstraction has 83 states and 89 transitions. [2018-04-11 20:44:08,348 INFO L460 AbstractCegarLoop]: Interpolant automaton has 13 states. [2018-04-11 20:44:08,348 INFO L276 IsEmpty]: Start isEmpty. Operand 83 states and 89 transitions. [2018-04-11 20:44:08,349 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 26 [2018-04-11 20:44:08,349 INFO L347 BasicCegarLoop]: Found error trace [2018-04-11 20:44:08,349 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] [2018-04-11 20:44:08,349 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]=== [2018-04-11 20:44:08,349 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 [2018-04-11 20:44:08,364 INFO L68 tionRefinementEngine]: Using refinement strategy FixedRefinementStrategy [2018-04-11 20:44:08,384 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-04-11 20:44:08,387 INFO L270 TraceCheckSpWp]: Computing forward predicates... [2018-04-11 20:44:08,395 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 [2018-04-11 20:44:08,395 INFO L267 ElimStorePlain]: Start of recursive call 2: End of recursive call: and 1 xjuncts. [2018-04-11 20:44:08,401 INFO L267 ElimStorePlain]: Start of recursive call 1: 1 dim-1 vars, End of recursive call: and 1 xjuncts. [2018-04-11 20:44:08,401 INFO L202 ElimStorePlain]: Needed 2 recursive calls to eliminate 1 variables, input treesize:13, output treesize:12 [2018-04-11 20:44:08,421 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-04-11 20:44:08,421 INFO L314 TraceCheckSpWp]: Computing backward predicates... [2018-04-11 20:44:08,473 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-04-11 20:44:08,506 INFO L320 seRefinementStrategy]: Constructing automaton from 2 perfect and 0 imperfect interpolant sequences. [2018-04-11 20:44:08,507 INFO L335 seRefinementStrategy]: Number of different interpolants: perfect sequences [4, 4] imperfect sequences [] total 6 [2018-04-11 20:44:08,507 INFO L442 AbstractCegarLoop]: Interpolant automaton has 7 states [2018-04-11 20:44:08,507 INFO L132 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2018-04-11 20:44:08,507 INFO L133 InterpolantAutomaton]: CoverageRelationStatistics Valid=15, Invalid=27, Unknown=0, NotChecked=0, Total=42 [2018-04-11 20:44:08,508 INFO L87 Difference]: Start difference. First operand 83 states and 89 transitions. Second operand 7 states. [2018-04-11 20:44:08,599 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-04-11 20:44:08,600 INFO L93 Difference]: Finished difference Result 83 states and 89 transitions. [2018-04-11 20:44:08,600 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2018-04-11 20:44:08,600 INFO L78 Accepts]: Start accepts. Automaton has 7 states. Word has length 25 [2018-04-11 20:44:08,600 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-04-11 20:44:08,601 INFO L225 Difference]: With dead ends: 83 [2018-04-11 20:44:08,602 INFO L226 Difference]: Without dead ends: 82 [2018-04-11 20:44:08,602 INFO L567 BasicCegarLoop]: 0 DeclaredPredicates, 50 GetRequests, 44 SyntacticMatches, 0 SemanticMatches, 6 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 5 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=22, Invalid=34, Unknown=0, NotChecked=0, Total=56 [2018-04-11 20:44:08,602 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 82 states. [2018-04-11 20:44:08,608 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 82 to 82. [2018-04-11 20:44:08,608 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 82 states. [2018-04-11 20:44:08,609 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 82 states to 82 states and 88 transitions. [2018-04-11 20:44:08,610 INFO L78 Accepts]: Start accepts. Automaton has 82 states and 88 transitions. Word has length 25 [2018-04-11 20:44:08,610 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-04-11 20:44:08,610 INFO L459 AbstractCegarLoop]: Abstraction has 82 states and 88 transitions. [2018-04-11 20:44:08,610 INFO L460 AbstractCegarLoop]: Interpolant automaton has 7 states. [2018-04-11 20:44:08,610 INFO L276 IsEmpty]: Start isEmpty. Operand 82 states and 88 transitions. [2018-04-11 20:44:08,611 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 26 [2018-04-11 20:44:08,611 INFO L347 BasicCegarLoop]: Found error trace [2018-04-11 20:44:08,611 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] [2018-04-11 20:44:08,611 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]=== [2018-04-11 20:44:08,612 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 [2018-04-11 20:44:08,621 INFO L68 tionRefinementEngine]: Using refinement strategy FixedRefinementStrategy [2018-04-11 20:44:08,635 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-04-11 20:44:08,637 INFO L270 TraceCheckSpWp]: Computing forward predicates... [2018-04-11 20:44:08,641 INFO L477 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 6 treesize of output 5 [2018-04-11 20:44:08,641 INFO L267 ElimStorePlain]: Start of recursive call 2: End of recursive call: and 1 xjuncts. [2018-04-11 20:44:08,648 INFO L267 ElimStorePlain]: Start of recursive call 1: 1 dim-1 vars, End of recursive call: and 1 xjuncts. [2018-04-11 20:44:08,649 INFO L202 ElimStorePlain]: Needed 2 recursive calls to eliminate 1 variables, input treesize:6, output treesize:5 [2018-04-11 20:44:08,659 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-04-11 20:44:08,659 INFO L314 TraceCheckSpWp]: Computing backward predicates... [2018-04-11 20:44:08,670 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-04-11 20:44:08,699 INFO L320 seRefinementStrategy]: Constructing automaton from 2 perfect and 0 imperfect interpolant sequences. [2018-04-11 20:44:08,699 INFO L335 seRefinementStrategy]: Number of different interpolants: perfect sequences [3, 3] imperfect sequences [] total 3 [2018-04-11 20:44:08,700 INFO L442 AbstractCegarLoop]: Interpolant automaton has 4 states [2018-04-11 20:44:08,700 INFO L132 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2018-04-11 20:44:08,700 INFO L133 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2018-04-11 20:44:08,700 INFO L87 Difference]: Start difference. First operand 82 states and 88 transitions. Second operand 4 states. [2018-04-11 20:44:08,755 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-04-11 20:44:08,755 INFO L93 Difference]: Finished difference Result 82 states and 88 transitions. [2018-04-11 20:44:08,755 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2018-04-11 20:44:08,756 INFO L78 Accepts]: Start accepts. Automaton has 4 states. Word has length 25 [2018-04-11 20:44:08,756 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-04-11 20:44:08,756 INFO L225 Difference]: With dead ends: 82 [2018-04-11 20:44:08,756 INFO L226 Difference]: Without dead ends: 81 [2018-04-11 20:44:08,757 INFO L567 BasicCegarLoop]: 0 DeclaredPredicates, 50 GetRequests, 47 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2018-04-11 20:44:08,757 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 81 states. [2018-04-11 20:44:08,760 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 81 to 81. [2018-04-11 20:44:08,760 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 81 states. [2018-04-11 20:44:08,761 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 81 states to 81 states and 87 transitions. [2018-04-11 20:44:08,761 INFO L78 Accepts]: Start accepts. Automaton has 81 states and 87 transitions. Word has length 25 [2018-04-11 20:44:08,762 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-04-11 20:44:08,762 INFO L459 AbstractCegarLoop]: Abstraction has 81 states and 87 transitions. [2018-04-11 20:44:08,762 INFO L460 AbstractCegarLoop]: Interpolant automaton has 4 states. [2018-04-11 20:44:08,762 INFO L276 IsEmpty]: Start isEmpty. Operand 81 states and 87 transitions. [2018-04-11 20:44:08,762 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 35 [2018-04-11 20:44:08,762 INFO L347 BasicCegarLoop]: Found error trace [2018-04-11 20:44:08,763 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] [2018-04-11 20:44:08,763 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]=== [2018-04-11 20:44:08,763 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 [2018-04-11 20:44:08,771 INFO L68 tionRefinementEngine]: Using refinement strategy FixedRefinementStrategy [2018-04-11 20:44:08,789 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-04-11 20:44:08,792 INFO L270 TraceCheckSpWp]: Computing forward predicates... [2018-04-11 20:44:08,806 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-04-11 20:44:08,807 INFO L314 TraceCheckSpWp]: Computing backward predicates... [2018-04-11 20:44:08,813 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-04-11 20:44:08,840 INFO L320 seRefinementStrategy]: Constructing automaton from 2 perfect and 0 imperfect interpolant sequences. [2018-04-11 20:44:08,841 INFO L335 seRefinementStrategy]: Number of different interpolants: perfect sequences [5, 5] imperfect sequences [] total 5 [2018-04-11 20:44:08,841 INFO L442 AbstractCegarLoop]: Interpolant automaton has 6 states [2018-04-11 20:44:08,841 INFO L132 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2018-04-11 20:44:08,841 INFO L133 InterpolantAutomaton]: CoverageRelationStatistics Valid=9, Invalid=21, Unknown=0, NotChecked=0, Total=30 [2018-04-11 20:44:08,841 INFO L87 Difference]: Start difference. First operand 81 states and 87 transitions. Second operand 6 states. [2018-04-11 20:44:08,988 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-04-11 20:44:08,988 INFO L93 Difference]: Finished difference Result 100 states and 106 transitions. [2018-04-11 20:44:08,988 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2018-04-11 20:44:08,988 INFO L78 Accepts]: Start accepts. Automaton has 6 states. Word has length 34 [2018-04-11 20:44:08,988 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-04-11 20:44:08,991 INFO L225 Difference]: With dead ends: 100 [2018-04-11 20:44:08,991 INFO L226 Difference]: Without dead ends: 97 [2018-04-11 20:44:08,991 INFO L567 BasicCegarLoop]: 0 DeclaredPredicates, 69 GetRequests, 63 SyntacticMatches, 0 SemanticMatches, 6 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=19, Invalid=37, Unknown=0, NotChecked=0, Total=56 [2018-04-11 20:44:08,992 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 97 states. [2018-04-11 20:44:08,998 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 97 to 89. [2018-04-11 20:44:08,999 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 89 states. [2018-04-11 20:44:09,000 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 89 states to 89 states and 100 transitions. [2018-04-11 20:44:09,000 INFO L78 Accepts]: Start accepts. Automaton has 89 states and 100 transitions. Word has length 34 [2018-04-11 20:44:09,000 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-04-11 20:44:09,001 INFO L459 AbstractCegarLoop]: Abstraction has 89 states and 100 transitions. [2018-04-11 20:44:09,001 INFO L460 AbstractCegarLoop]: Interpolant automaton has 6 states. [2018-04-11 20:44:09,001 INFO L276 IsEmpty]: Start isEmpty. Operand 89 states and 100 transitions. [2018-04-11 20:44:09,001 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 35 [2018-04-11 20:44:09,002 INFO L347 BasicCegarLoop]: Found error trace [2018-04-11 20:44:09,002 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] [2018-04-11 20:44:09,002 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]=== [2018-04-11 20:44:09,002 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 [2018-04-11 20:44:09,009 INFO L68 tionRefinementEngine]: Using refinement strategy FixedRefinementStrategy [2018-04-11 20:44:09,024 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-04-11 20:44:09,027 INFO L270 TraceCheckSpWp]: Computing forward predicates... [2018-04-11 20:44:09,086 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-04-11 20:44:09,087 INFO L314 TraceCheckSpWp]: Computing backward predicates... [2018-04-11 20:44:09,094 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 [2018-04-11 20:44:09,095 INFO L267 ElimStorePlain]: Start of recursive call 2: End of recursive call: and 1 xjuncts. [2018-04-11 20:44:09,102 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 [2018-04-11 20:44:09,102 INFO L267 ElimStorePlain]: Start of recursive call 3: End of recursive call: and 1 xjuncts. [2018-04-11 20:44:09,105 INFO L267 ElimStorePlain]: Start of recursive call 1: 2 dim-0 vars, 2 dim-1 vars, End of recursive call: and 2 xjuncts. [2018-04-11 20:44:09,105 INFO L202 ElimStorePlain]: Needed 3 recursive calls to eliminate 4 variables, input treesize:33, output treesize:7 [2018-04-11 20:44:09,142 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-04-11 20:44:09,162 INFO L320 seRefinementStrategy]: Constructing automaton from 2 perfect and 0 imperfect interpolant sequences. [2018-04-11 20:44:09,162 INFO L335 seRefinementStrategy]: Number of different interpolants: perfect sequences [9, 9] imperfect sequences [] total 9 [2018-04-11 20:44:09,162 INFO L442 AbstractCegarLoop]: Interpolant automaton has 10 states [2018-04-11 20:44:09,163 INFO L132 InterpolantAutomaton]: Constructing interpolant automaton starting with 10 interpolants. [2018-04-11 20:44:09,163 INFO L133 InterpolantAutomaton]: CoverageRelationStatistics Valid=19, Invalid=71, Unknown=0, NotChecked=0, Total=90 [2018-04-11 20:44:09,163 INFO L87 Difference]: Start difference. First operand 89 states and 100 transitions. Second operand 10 states. [2018-04-11 20:44:09,345 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-04-11 20:44:09,346 INFO L93 Difference]: Finished difference Result 97 states and 103 transitions. [2018-04-11 20:44:09,346 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 11 states. [2018-04-11 20:44:09,346 INFO L78 Accepts]: Start accepts. Automaton has 10 states. Word has length 34 [2018-04-11 20:44:09,346 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-04-11 20:44:09,347 INFO L225 Difference]: With dead ends: 97 [2018-04-11 20:44:09,347 INFO L226 Difference]: Without dead ends: 94 [2018-04-11 20:44:09,347 INFO L567 BasicCegarLoop]: 0 DeclaredPredicates, 74 GetRequests, 56 SyntacticMatches, 3 SemanticMatches, 15 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 25 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=65, Invalid=207, Unknown=0, NotChecked=0, Total=272 [2018-04-11 20:44:09,348 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 94 states. [2018-04-11 20:44:09,354 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 94 to 89. [2018-04-11 20:44:09,354 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 89 states. [2018-04-11 20:44:09,355 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 89 states to 89 states and 97 transitions. [2018-04-11 20:44:09,356 INFO L78 Accepts]: Start accepts. Automaton has 89 states and 97 transitions. Word has length 34 [2018-04-11 20:44:09,356 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-04-11 20:44:09,356 INFO L459 AbstractCegarLoop]: Abstraction has 89 states and 97 transitions. [2018-04-11 20:44:09,356 INFO L460 AbstractCegarLoop]: Interpolant automaton has 10 states. [2018-04-11 20:44:09,356 INFO L276 IsEmpty]: Start isEmpty. Operand 89 states and 97 transitions. [2018-04-11 20:44:09,357 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 41 [2018-04-11 20:44:09,358 INFO L347 BasicCegarLoop]: Found error trace [2018-04-11 20:44:09,358 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] [2018-04-11 20:44:09,358 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]=== [2018-04-11 20:44:09,358 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 [2018-04-11 20:44:09,367 INFO L68 tionRefinementEngine]: Using refinement strategy FixedRefinementStrategy [2018-04-11 20:44:09,391 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-04-11 20:44:09,394 INFO L270 TraceCheckSpWp]: Computing forward predicates... [2018-04-11 20:44:09,424 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-04-11 20:44:09,425 INFO L314 TraceCheckSpWp]: Computing backward predicates... [2018-04-11 20:44:09,429 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-04-11 20:44:09,449 INFO L320 seRefinementStrategy]: Constructing automaton from 2 perfect and 0 imperfect interpolant sequences. [2018-04-11 20:44:09,449 INFO L335 seRefinementStrategy]: Number of different interpolants: perfect sequences [6, 6] imperfect sequences [] total 6 [2018-04-11 20:44:09,449 INFO L442 AbstractCegarLoop]: Interpolant automaton has 7 states [2018-04-11 20:44:09,450 INFO L132 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2018-04-11 20:44:09,450 INFO L133 InterpolantAutomaton]: CoverageRelationStatistics Valid=11, Invalid=31, Unknown=0, NotChecked=0, Total=42 [2018-04-11 20:44:09,450 INFO L87 Difference]: Start difference. First operand 89 states and 97 transitions. Second operand 7 states. [2018-04-11 20:44:09,518 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-04-11 20:44:09,519 INFO L93 Difference]: Finished difference Result 92 states and 100 transitions. [2018-04-11 20:44:09,519 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2018-04-11 20:44:09,519 INFO L78 Accepts]: Start accepts. Automaton has 7 states. Word has length 40 [2018-04-11 20:44:09,519 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-04-11 20:44:09,520 INFO L225 Difference]: With dead ends: 92 [2018-04-11 20:44:09,520 INFO L226 Difference]: Without dead ends: 91 [2018-04-11 20:44:09,521 INFO L567 BasicCegarLoop]: 0 DeclaredPredicates, 82 GetRequests, 74 SyntacticMatches, 0 SemanticMatches, 8 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=29, Invalid=61, Unknown=0, NotChecked=0, Total=90 [2018-04-11 20:44:09,521 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 91 states. [2018-04-11 20:44:09,526 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 91 to 88. [2018-04-11 20:44:09,526 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 88 states. [2018-04-11 20:44:09,527 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 88 states to 88 states and 95 transitions. [2018-04-11 20:44:09,527 INFO L78 Accepts]: Start accepts. Automaton has 88 states and 95 transitions. Word has length 40 [2018-04-11 20:44:09,528 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-04-11 20:44:09,528 INFO L459 AbstractCegarLoop]: Abstraction has 88 states and 95 transitions. [2018-04-11 20:44:09,528 INFO L460 AbstractCegarLoop]: Interpolant automaton has 7 states. [2018-04-11 20:44:09,528 INFO L276 IsEmpty]: Start isEmpty. Operand 88 states and 95 transitions. [2018-04-11 20:44:09,529 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 41 [2018-04-11 20:44:09,529 INFO L347 BasicCegarLoop]: Found error trace [2018-04-11 20:44:09,529 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] [2018-04-11 20:44:09,529 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]=== [2018-04-11 20:44:09,529 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 [2018-04-11 20:44:09,536 INFO L68 tionRefinementEngine]: Using refinement strategy FixedRefinementStrategy [2018-04-11 20:44:09,552 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-04-11 20:44:09,554 INFO L270 TraceCheckSpWp]: Computing forward predicates... [2018-04-11 20:44:09,620 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-04-11 20:44:09,620 INFO L314 TraceCheckSpWp]: Computing backward predicates... [2018-04-11 20:44:09,631 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 [2018-04-11 20:44:09,632 INFO L267 ElimStorePlain]: Start of recursive call 2: End of recursive call: and 1 xjuncts. [2018-04-11 20:44:09,638 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 [2018-04-11 20:44:09,638 INFO L267 ElimStorePlain]: Start of recursive call 3: End of recursive call: and 1 xjuncts. [2018-04-11 20:44:09,641 INFO L267 ElimStorePlain]: Start of recursive call 1: 2 dim-0 vars, 2 dim-1 vars, End of recursive call: and 2 xjuncts. [2018-04-11 20:44:09,641 INFO L202 ElimStorePlain]: Needed 3 recursive calls to eliminate 4 variables, input treesize:29, output treesize:7 [2018-04-11 20:44:09,660 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-04-11 20:44:09,680 INFO L320 seRefinementStrategy]: Constructing automaton from 2 perfect and 0 imperfect interpolant sequences. [2018-04-11 20:44:09,680 INFO L335 seRefinementStrategy]: Number of different interpolants: perfect sequences [9, 9] imperfect sequences [] total 9 [2018-04-11 20:44:09,680 INFO L442 AbstractCegarLoop]: Interpolant automaton has 10 states [2018-04-11 20:44:09,680 INFO L132 InterpolantAutomaton]: Constructing interpolant automaton starting with 10 interpolants. [2018-04-11 20:44:09,681 INFO L133 InterpolantAutomaton]: CoverageRelationStatistics Valid=19, Invalid=71, Unknown=0, NotChecked=0, Total=90 [2018-04-11 20:44:09,681 INFO L87 Difference]: Start difference. First operand 88 states and 95 transitions. Second operand 10 states. [2018-04-11 20:44:09,849 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-04-11 20:44:09,849 INFO L93 Difference]: Finished difference Result 89 states and 95 transitions. [2018-04-11 20:44:09,849 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 12 states. [2018-04-11 20:44:09,849 INFO L78 Accepts]: Start accepts. Automaton has 10 states. Word has length 40 [2018-04-11 20:44:09,850 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-04-11 20:44:09,850 INFO L225 Difference]: With dead ends: 89 [2018-04-11 20:44:09,850 INFO L226 Difference]: Without dead ends: 88 [2018-04-11 20:44:09,851 INFO L567 BasicCegarLoop]: 0 DeclaredPredicates, 86 GetRequests, 69 SyntacticMatches, 2 SemanticMatches, 15 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 34 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=62, Invalid=210, Unknown=0, NotChecked=0, Total=272 [2018-04-11 20:44:09,851 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 88 states. [2018-04-11 20:44:09,855 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 88 to 88. [2018-04-11 20:44:09,855 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 88 states. [2018-04-11 20:44:09,856 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 88 states to 88 states and 94 transitions. [2018-04-11 20:44:09,856 INFO L78 Accepts]: Start accepts. Automaton has 88 states and 94 transitions. Word has length 40 [2018-04-11 20:44:09,856 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-04-11 20:44:09,857 INFO L459 AbstractCegarLoop]: Abstraction has 88 states and 94 transitions. [2018-04-11 20:44:09,857 INFO L460 AbstractCegarLoop]: Interpolant automaton has 10 states. [2018-04-11 20:44:09,857 INFO L276 IsEmpty]: Start isEmpty. Operand 88 states and 94 transitions. [2018-04-11 20:44:09,858 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 41 [2018-04-11 20:44:09,858 INFO L347 BasicCegarLoop]: Found error trace [2018-04-11 20:44:09,858 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] [2018-04-11 20:44:09,858 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]=== [2018-04-11 20:44:09,858 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 [2018-04-11 20:44:09,867 INFO L68 tionRefinementEngine]: Using refinement strategy FixedRefinementStrategy [2018-04-11 20:44:09,884 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-04-11 20:44:09,886 INFO L270 TraceCheckSpWp]: Computing forward predicates... [2018-04-11 20:44:09,929 INFO L700 Elim1Store]: detected not equals via solver [2018-04-11 20:44:09,930 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 [2018-04-11 20:44:09,934 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 [2018-04-11 20:44:09,934 INFO L267 ElimStorePlain]: Start of recursive call 3: End of recursive call: and 1 xjuncts. [2018-04-11 20:44:09,938 INFO L267 ElimStorePlain]: Start of recursive call 2: 1 dim-1 vars, End of recursive call: and 1 xjuncts. [2018-04-11 20:44:09,942 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. [2018-04-11 20:44:09,943 INFO L202 ElimStorePlain]: Needed 3 recursive calls to eliminate 3 variables, input treesize:23, output treesize:15 [2018-04-11 20:44:09,981 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 [2018-04-11 20:44:09,987 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 [2018-04-11 20:44:09,993 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-04-11 20:44:09,993 INFO L314 TraceCheckSpWp]: Computing backward predicates... [2018-04-11 20:44:10,023 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 [2018-04-11 20:44:10,041 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 [2018-04-11 20:44:10,074 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-04-11 20:44:10,094 INFO L320 seRefinementStrategy]: Constructing automaton from 2 perfect and 0 imperfect interpolant sequences. [2018-04-11 20:44:10,094 INFO L335 seRefinementStrategy]: Number of different interpolants: perfect sequences [7, 6] imperfect sequences [] total 11 [2018-04-11 20:44:10,094 INFO L442 AbstractCegarLoop]: Interpolant automaton has 12 states [2018-04-11 20:44:10,095 INFO L132 InterpolantAutomaton]: Constructing interpolant automaton starting with 12 interpolants. [2018-04-11 20:44:10,095 INFO L133 InterpolantAutomaton]: CoverageRelationStatistics Valid=23, Invalid=45, Unknown=4, NotChecked=60, Total=132 [2018-04-11 20:44:10,095 INFO L87 Difference]: Start difference. First operand 88 states and 94 transitions. Second operand 12 states. [2018-04-11 20:44:10,104 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 [2018-04-11 20:44:10,494 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-04-11 20:44:10,494 INFO L93 Difference]: Finished difference Result 157 states and 168 transitions. [2018-04-11 20:44:10,494 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 11 states. [2018-04-11 20:44:10,494 INFO L78 Accepts]: Start accepts. Automaton has 12 states. Word has length 40 [2018-04-11 20:44:10,495 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-04-11 20:44:10,496 INFO L225 Difference]: With dead ends: 157 [2018-04-11 20:44:10,496 INFO L226 Difference]: Without dead ends: 143 [2018-04-11 20:44:10,496 INFO L567 BasicCegarLoop]: 0 DeclaredPredicates, 87 GetRequests, 69 SyntacticMatches, 2 SemanticMatches, 16 ConstructedPredicates, 5 IntricatePredicates, 0 DeprecatedPredicates, 12 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=45, Invalid=125, Unknown=6, NotChecked=130, Total=306 [2018-04-11 20:44:10,497 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 143 states. [2018-04-11 20:44:10,505 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 143 to 136. [2018-04-11 20:44:10,505 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 136 states. [2018-04-11 20:44:10,506 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 136 states to 136 states and 152 transitions. [2018-04-11 20:44:10,506 INFO L78 Accepts]: Start accepts. Automaton has 136 states and 152 transitions. Word has length 40 [2018-04-11 20:44:10,507 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-04-11 20:44:10,507 INFO L459 AbstractCegarLoop]: Abstraction has 136 states and 152 transitions. [2018-04-11 20:44:10,507 INFO L460 AbstractCegarLoop]: Interpolant automaton has 12 states. [2018-04-11 20:44:10,507 INFO L276 IsEmpty]: Start isEmpty. Operand 136 states and 152 transitions. [2018-04-11 20:44:10,508 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 42 [2018-04-11 20:44:10,508 INFO L347 BasicCegarLoop]: Found error trace [2018-04-11 20:44:10,508 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] [2018-04-11 20:44:10,508 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]=== [2018-04-11 20:44:10,509 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 [2018-04-11 20:44:10,517 INFO L68 tionRefinementEngine]: Using refinement strategy FixedRefinementStrategy [2018-04-11 20:44:10,538 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-04-11 20:44:10,541 INFO L270 TraceCheckSpWp]: Computing forward predicates... [2018-04-11 20:44:10,580 INFO L700 Elim1Store]: detected not equals via solver [2018-04-11 20:44:10,581 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 [2018-04-11 20:44:10,584 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 [2018-04-11 20:44:10,585 INFO L267 ElimStorePlain]: Start of recursive call 3: End of recursive call: and 1 xjuncts. [2018-04-11 20:44:10,589 INFO L267 ElimStorePlain]: Start of recursive call 2: 1 dim-1 vars, End of recursive call: and 1 xjuncts. [2018-04-11 20:44:10,593 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. [2018-04-11 20:44:10,593 INFO L202 ElimStorePlain]: Needed 3 recursive calls to eliminate 3 variables, input treesize:23, output treesize:15 [2018-04-11 20:44:10,646 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 [2018-04-11 20:44:10,653 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 [2018-04-11 20:44:10,657 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-04-11 20:44:10,658 INFO L314 TraceCheckSpWp]: Computing backward predicates... [2018-04-11 20:44:10,678 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 [2018-04-11 20:44:10,683 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 [2018-04-11 20:44:10,705 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-04-11 20:44:10,727 INFO L320 seRefinementStrategy]: Constructing automaton from 2 perfect and 0 imperfect interpolant sequences. [2018-04-11 20:44:10,727 INFO L335 seRefinementStrategy]: Number of different interpolants: perfect sequences [7, 6] imperfect sequences [] total 11 [2018-04-11 20:44:10,727 INFO L442 AbstractCegarLoop]: Interpolant automaton has 12 states [2018-04-11 20:44:10,728 INFO L132 InterpolantAutomaton]: Constructing interpolant automaton starting with 12 interpolants. [2018-04-11 20:44:10,728 INFO L133 InterpolantAutomaton]: CoverageRelationStatistics Valid=23, Invalid=45, Unknown=4, NotChecked=60, Total=132 [2018-04-11 20:44:10,728 INFO L87 Difference]: Start difference. First operand 136 states and 152 transitions. Second operand 12 states. [2018-04-11 20:44:10,738 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 [2018-04-11 20:44:11,102 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-04-11 20:44:11,103 INFO L93 Difference]: Finished difference Result 205 states and 225 transitions. [2018-04-11 20:44:11,103 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 11 states. [2018-04-11 20:44:11,103 INFO L78 Accepts]: Start accepts. Automaton has 12 states. Word has length 41 [2018-04-11 20:44:11,103 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-04-11 20:44:11,105 INFO L225 Difference]: With dead ends: 205 [2018-04-11 20:44:11,105 INFO L226 Difference]: Without dead ends: 191 [2018-04-11 20:44:11,105 INFO L567 BasicCegarLoop]: 0 DeclaredPredicates, 89 GetRequests, 71 SyntacticMatches, 2 SemanticMatches, 16 ConstructedPredicates, 5 IntricatePredicates, 0 DeprecatedPredicates, 12 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=45, Invalid=125, Unknown=6, NotChecked=130, Total=306 [2018-04-11 20:44:11,106 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 191 states. [2018-04-11 20:44:11,114 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 191 to 137. [2018-04-11 20:44:11,115 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 137 states. [2018-04-11 20:44:11,116 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 137 states to 137 states and 153 transitions. [2018-04-11 20:44:11,116 INFO L78 Accepts]: Start accepts. Automaton has 137 states and 153 transitions. Word has length 41 [2018-04-11 20:44:11,116 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-04-11 20:44:11,116 INFO L459 AbstractCegarLoop]: Abstraction has 137 states and 153 transitions. [2018-04-11 20:44:11,116 INFO L460 AbstractCegarLoop]: Interpolant automaton has 12 states. [2018-04-11 20:44:11,116 INFO L276 IsEmpty]: Start isEmpty. Operand 137 states and 153 transitions. [2018-04-11 20:44:11,117 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 42 [2018-04-11 20:44:11,117 INFO L347 BasicCegarLoop]: Found error trace [2018-04-11 20:44:11,118 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] [2018-04-11 20:44:11,118 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]=== [2018-04-11 20:44:11,118 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 [2018-04-11 20:44:11,125 INFO L68 tionRefinementEngine]: Using refinement strategy FixedRefinementStrategy [2018-04-11 20:44:11,145 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-04-11 20:44:11,148 INFO L270 TraceCheckSpWp]: Computing forward predicates... [2018-04-11 20:44:11,167 INFO L134 CoverageAnalysis]: Checked inductivity of 2 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 2 trivial. 0 not checked. [2018-04-11 20:44:11,167 INFO L314 TraceCheckSpWp]: Computing backward predicates... [2018-04-11 20:44:11,172 INFO L134 CoverageAnalysis]: Checked inductivity of 2 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 2 trivial. 0 not checked. [2018-04-11 20:44:11,192 INFO L320 seRefinementStrategy]: Constructing automaton from 2 perfect and 0 imperfect interpolant sequences. [2018-04-11 20:44:11,192 INFO L335 seRefinementStrategy]: Number of different interpolants: perfect sequences [6, 6] imperfect sequences [] total 6 [2018-04-11 20:44:11,192 INFO L442 AbstractCegarLoop]: Interpolant automaton has 7 states [2018-04-11 20:44:11,193 INFO L132 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2018-04-11 20:44:11,193 INFO L133 InterpolantAutomaton]: CoverageRelationStatistics Valid=11, Invalid=31, Unknown=0, NotChecked=0, Total=42 [2018-04-11 20:44:11,193 INFO L87 Difference]: Start difference. First operand 137 states and 153 transitions. Second operand 7 states. [2018-04-11 20:44:11,298 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-04-11 20:44:11,298 INFO L93 Difference]: Finished difference Result 140 states and 156 transitions. [2018-04-11 20:44:11,299 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2018-04-11 20:44:11,299 INFO L78 Accepts]: Start accepts. Automaton has 7 states. Word has length 41 [2018-04-11 20:44:11,299 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-04-11 20:44:11,300 INFO L225 Difference]: With dead ends: 140 [2018-04-11 20:44:11,300 INFO L226 Difference]: Without dead ends: 139 [2018-04-11 20:44:11,300 INFO L567 BasicCegarLoop]: 0 DeclaredPredicates, 84 GetRequests, 76 SyntacticMatches, 0 SemanticMatches, 8 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=29, Invalid=61, Unknown=0, NotChecked=0, Total=90 [2018-04-11 20:44:11,301 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 139 states. [2018-04-11 20:44:11,309 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 139 to 136. [2018-04-11 20:44:11,309 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 136 states. [2018-04-11 20:44:11,310 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 136 states to 136 states and 151 transitions. [2018-04-11 20:44:11,310 INFO L78 Accepts]: Start accepts. Automaton has 136 states and 151 transitions. Word has length 41 [2018-04-11 20:44:11,311 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-04-11 20:44:11,311 INFO L459 AbstractCegarLoop]: Abstraction has 136 states and 151 transitions. [2018-04-11 20:44:11,311 INFO L460 AbstractCegarLoop]: Interpolant automaton has 7 states. [2018-04-11 20:44:11,311 INFO L276 IsEmpty]: Start isEmpty. Operand 136 states and 151 transitions. [2018-04-11 20:44:11,312 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 42 [2018-04-11 20:44:11,312 INFO L347 BasicCegarLoop]: Found error trace [2018-04-11 20:44:11,312 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] [2018-04-11 20:44:11,312 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]=== [2018-04-11 20:44:11,312 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 [2018-04-11 20:44:11,323 INFO L68 tionRefinementEngine]: Using refinement strategy FixedRefinementStrategy [2018-04-11 20:44:11,338 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-04-11 20:44:11,341 INFO L270 TraceCheckSpWp]: Computing forward predicates... [2018-04-11 20:44:11,354 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 [2018-04-11 20:44:11,355 INFO L267 ElimStorePlain]: Start of recursive call 2: End of recursive call: and 1 xjuncts. [2018-04-11 20:44:11,361 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 [2018-04-11 20:44:11,361 INFO L267 ElimStorePlain]: Start of recursive call 3: End of recursive call: and 1 xjuncts. [2018-04-11 20:44:11,367 INFO L267 ElimStorePlain]: Start of recursive call 1: 1 dim-0 vars, 2 dim-1 vars, End of recursive call: and 1 xjuncts. [2018-04-11 20:44:11,367 INFO L202 ElimStorePlain]: Needed 3 recursive calls to eliminate 3 variables, input treesize:24, output treesize:19 [2018-04-11 20:44:11,411 INFO L700 Elim1Store]: detected not equals via solver [2018-04-11 20:44:11,411 INFO L700 Elim1Store]: detected not equals via solver [2018-04-11 20:44:11,412 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 [2018-04-11 20:44:11,413 INFO L267 ElimStorePlain]: Start of recursive call 2: End of recursive call: and 1 xjuncts. [2018-04-11 20:44:11,424 INFO L700 Elim1Store]: detected not equals via solver [2018-04-11 20:44:11,425 INFO L700 Elim1Store]: detected not equals via solver [2018-04-11 20:44:11,426 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 [2018-04-11 20:44:11,426 INFO L267 ElimStorePlain]: Start of recursive call 3: End of recursive call: and 1 xjuncts. [2018-04-11 20:44:11,432 INFO L267 ElimStorePlain]: Start of recursive call 1: 1 dim-0 vars, 2 dim-1 vars, End of recursive call: and 1 xjuncts. [2018-04-11 20:44:11,432 INFO L202 ElimStorePlain]: Needed 3 recursive calls to eliminate 3 variables, input treesize:30, output treesize:18 [2018-04-11 20:44:11,573 INFO L134 CoverageAnalysis]: Checked inductivity of 2 backedges. 0 proven. 2 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-04-11 20:44:11,573 INFO L314 TraceCheckSpWp]: Computing backward predicates... [2018-04-11 20:44:11,757 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 [2018-04-11 20:44:11,758 INFO L267 ElimStorePlain]: Start of recursive call 2: End of recursive call: and 1 xjuncts. [2018-04-11 20:44:11,761 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 [2018-04-11 20:44:11,770 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 [2018-04-11 20:44:11,770 INFO L267 ElimStorePlain]: Start of recursive call 4: End of recursive call: and 1 xjuncts. [2018-04-11 20:44:11,770 WARN L307 Elim1Store]: Array PQE input equivalent to true [2018-04-11 20:44:11,771 INFO L267 ElimStorePlain]: Start of recursive call 5: End of recursive call: and 1 xjuncts. [2018-04-11 20:44:11,773 INFO L267 ElimStorePlain]: Start of recursive call 3: 1 dim-1 vars, End of recursive call: and 1 xjuncts. [2018-04-11 20:44:11,775 INFO L267 ElimStorePlain]: Start of recursive call 1: 2 dim-0 vars, 2 dim-1 vars, End of recursive call: and 1 xjuncts. [2018-04-11 20:44:11,775 INFO L202 ElimStorePlain]: Needed 5 recursive calls to eliminate 4 variables, input treesize:21, output treesize:3 [2018-04-11 20:44:11,807 INFO L134 CoverageAnalysis]: Checked inductivity of 2 backedges. 0 proven. 2 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-04-11 20:44:11,826 INFO L320 seRefinementStrategy]: Constructing automaton from 0 perfect and 2 imperfect interpolant sequences. [2018-04-11 20:44:11,827 INFO L335 seRefinementStrategy]: Number of different interpolants: perfect sequences [] imperfect sequences [13, 12] total 23 [2018-04-11 20:44:11,827 INFO L442 AbstractCegarLoop]: Interpolant automaton has 24 states [2018-04-11 20:44:11,827 INFO L132 InterpolantAutomaton]: Constructing interpolant automaton starting with 24 interpolants. [2018-04-11 20:44:11,827 INFO L133 InterpolantAutomaton]: CoverageRelationStatistics Valid=63, Invalid=489, Unknown=0, NotChecked=0, Total=552 [2018-04-11 20:44:11,828 INFO L87 Difference]: Start difference. First operand 136 states and 151 transitions. Second operand 24 states. [2018-04-11 20:44:12,356 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-04-11 20:44:12,356 INFO L93 Difference]: Finished difference Result 218 states and 240 transitions. [2018-04-11 20:44:12,357 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 17 states. [2018-04-11 20:44:12,357 INFO L78 Accepts]: Start accepts. Automaton has 24 states. Word has length 41 [2018-04-11 20:44:12,357 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-04-11 20:44:12,358 INFO L225 Difference]: With dead ends: 218 [2018-04-11 20:44:12,358 INFO L226 Difference]: Without dead ends: 217 [2018-04-11 20:44:12,359 INFO L567 BasicCegarLoop]: 0 DeclaredPredicates, 93 GetRequests, 58 SyntacticMatches, 1 SemanticMatches, 34 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 208 ImplicationChecksByTransitivity, 0.5s TimeCoverageRelationStatistics Valid=197, Invalid=1063, Unknown=0, NotChecked=0, Total=1260 [2018-04-11 20:44:12,359 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 217 states. [2018-04-11 20:44:12,370 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 217 to 150. [2018-04-11 20:44:12,370 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 150 states. [2018-04-11 20:44:12,371 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 150 states to 150 states and 167 transitions. [2018-04-11 20:44:12,371 INFO L78 Accepts]: Start accepts. Automaton has 150 states and 167 transitions. Word has length 41 [2018-04-11 20:44:12,378 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-04-11 20:44:12,379 INFO L459 AbstractCegarLoop]: Abstraction has 150 states and 167 transitions. [2018-04-11 20:44:12,379 INFO L460 AbstractCegarLoop]: Interpolant automaton has 24 states. [2018-04-11 20:44:12,379 INFO L276 IsEmpty]: Start isEmpty. Operand 150 states and 167 transitions. [2018-04-11 20:44:12,379 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 42 [2018-04-11 20:44:12,380 INFO L347 BasicCegarLoop]: Found error trace [2018-04-11 20:44:12,380 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] [2018-04-11 20:44:12,380 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]=== [2018-04-11 20:44:12,380 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 [2018-04-11 20:44:12,386 INFO L68 tionRefinementEngine]: Using refinement strategy FixedRefinementStrategy [2018-04-11 20:44:12,399 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-04-11 20:44:12,402 INFO L270 TraceCheckSpWp]: Computing forward predicates... [2018-04-11 20:44:12,424 INFO L700 Elim1Store]: detected not equals via solver [2018-04-11 20:44:12,425 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 [2018-04-11 20:44:12,427 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 [2018-04-11 20:44:12,427 INFO L267 ElimStorePlain]: Start of recursive call 3: End of recursive call: and 1 xjuncts. [2018-04-11 20:44:12,430 INFO L267 ElimStorePlain]: Start of recursive call 2: 1 dim-1 vars, End of recursive call: and 1 xjuncts. [2018-04-11 20:44:12,434 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. [2018-04-11 20:44:12,434 INFO L202 ElimStorePlain]: Needed 3 recursive calls to eliminate 3 variables, input treesize:23, output treesize:15 [2018-04-11 20:44:12,465 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 [2018-04-11 20:44:12,470 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 [2018-04-11 20:44:12,483 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-04-11 20:44:12,483 INFO L314 TraceCheckSpWp]: Computing backward predicates... [2018-04-11 20:44:12,501 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 [2018-04-11 20:44:12,504 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 [2018-04-11 20:44:12,521 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-04-11 20:44:12,540 INFO L320 seRefinementStrategy]: Constructing automaton from 2 perfect and 0 imperfect interpolant sequences. [2018-04-11 20:44:12,540 INFO L335 seRefinementStrategy]: Number of different interpolants: perfect sequences [7, 6] imperfect sequences [] total 11 [2018-04-11 20:44:12,540 INFO L442 AbstractCegarLoop]: Interpolant automaton has 12 states [2018-04-11 20:44:12,541 INFO L132 InterpolantAutomaton]: Constructing interpolant automaton starting with 12 interpolants. [2018-04-11 20:44:12,541 INFO L133 InterpolantAutomaton]: CoverageRelationStatistics Valid=23, Invalid=45, Unknown=4, NotChecked=60, Total=132 [2018-04-11 20:44:12,541 INFO L87 Difference]: Start difference. First operand 150 states and 167 transitions. Second operand 12 states. [2018-04-11 20:44:12,549 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 [2018-04-11 20:44:12,881 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-04-11 20:44:12,881 INFO L93 Difference]: Finished difference Result 225 states and 247 transitions. [2018-04-11 20:44:12,881 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 11 states. [2018-04-11 20:44:12,882 INFO L78 Accepts]: Start accepts. Automaton has 12 states. Word has length 41 [2018-04-11 20:44:12,882 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-04-11 20:44:12,883 INFO L225 Difference]: With dead ends: 225 [2018-04-11 20:44:12,883 INFO L226 Difference]: Without dead ends: 211 [2018-04-11 20:44:12,883 INFO L567 BasicCegarLoop]: 0 DeclaredPredicates, 89 GetRequests, 71 SyntacticMatches, 2 SemanticMatches, 16 ConstructedPredicates, 5 IntricatePredicates, 0 DeprecatedPredicates, 12 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=45, Invalid=125, Unknown=6, NotChecked=130, Total=306 [2018-04-11 20:44:12,884 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 211 states. [2018-04-11 20:44:12,893 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 211 to 152. [2018-04-11 20:44:12,894 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 152 states. [2018-04-11 20:44:12,895 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 152 states to 152 states and 170 transitions. [2018-04-11 20:44:12,895 INFO L78 Accepts]: Start accepts. Automaton has 152 states and 170 transitions. Word has length 41 [2018-04-11 20:44:12,895 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-04-11 20:44:12,895 INFO L459 AbstractCegarLoop]: Abstraction has 152 states and 170 transitions. [2018-04-11 20:44:12,895 INFO L460 AbstractCegarLoop]: Interpolant automaton has 12 states. [2018-04-11 20:44:12,895 INFO L276 IsEmpty]: Start isEmpty. Operand 152 states and 170 transitions. [2018-04-11 20:44:12,896 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 42 [2018-04-11 20:44:12,896 INFO L347 BasicCegarLoop]: Found error trace [2018-04-11 20:44:12,896 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] [2018-04-11 20:44:12,897 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]=== [2018-04-11 20:44:12,897 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 [2018-04-11 20:44:12,902 INFO L68 tionRefinementEngine]: Using refinement strategy FixedRefinementStrategy [2018-04-11 20:44:12,917 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-04-11 20:44:12,919 INFO L270 TraceCheckSpWp]: Computing forward predicates... [2018-04-11 20:44:12,933 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-04-11 20:44:12,934 INFO L314 TraceCheckSpWp]: Computing backward predicates... [2018-04-11 20:44:12,950 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-04-11 20:44:12,970 INFO L320 seRefinementStrategy]: Constructing automaton from 2 perfect and 0 imperfect interpolant sequences. [2018-04-11 20:44:12,970 INFO L335 seRefinementStrategy]: Number of different interpolants: perfect sequences [5, 5] imperfect sequences [] total 7 [2018-04-11 20:44:12,970 INFO L442 AbstractCegarLoop]: Interpolant automaton has 7 states [2018-04-11 20:44:12,971 INFO L132 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2018-04-11 20:44:12,971 INFO L133 InterpolantAutomaton]: CoverageRelationStatistics Valid=17, Invalid=25, Unknown=0, NotChecked=0, Total=42 [2018-04-11 20:44:12,971 INFO L87 Difference]: Start difference. First operand 152 states and 170 transitions. Second operand 7 states. [2018-04-11 20:44:13,005 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-04-11 20:44:13,005 INFO L93 Difference]: Finished difference Result 226 states and 248 transitions. [2018-04-11 20:44:13,006 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2018-04-11 20:44:13,006 INFO L78 Accepts]: Start accepts. Automaton has 7 states. Word has length 41 [2018-04-11 20:44:13,006 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-04-11 20:44:13,007 INFO L225 Difference]: With dead ends: 226 [2018-04-11 20:44:13,007 INFO L226 Difference]: Without dead ends: 148 [2018-04-11 20:44:13,007 INFO L567 BasicCegarLoop]: 0 DeclaredPredicates, 81 GetRequests, 75 SyntacticMatches, 1 SemanticMatches, 5 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 7 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=17, Invalid=25, Unknown=0, NotChecked=0, Total=42 [2018-04-11 20:44:13,008 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 148 states. [2018-04-11 20:44:13,017 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 148 to 148. [2018-04-11 20:44:13,018 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 148 states. [2018-04-11 20:44:13,019 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 148 states to 148 states and 163 transitions. [2018-04-11 20:44:13,019 INFO L78 Accepts]: Start accepts. Automaton has 148 states and 163 transitions. Word has length 41 [2018-04-11 20:44:13,019 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-04-11 20:44:13,019 INFO L459 AbstractCegarLoop]: Abstraction has 148 states and 163 transitions. [2018-04-11 20:44:13,020 INFO L460 AbstractCegarLoop]: Interpolant automaton has 7 states. [2018-04-11 20:44:13,020 INFO L276 IsEmpty]: Start isEmpty. Operand 148 states and 163 transitions. [2018-04-11 20:44:13,020 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 43 [2018-04-11 20:44:13,020 INFO L347 BasicCegarLoop]: Found error trace [2018-04-11 20:44:13,021 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] [2018-04-11 20:44:13,021 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]=== [2018-04-11 20:44:13,021 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 [2018-04-11 20:44:13,029 INFO L68 tionRefinementEngine]: Using refinement strategy FixedRefinementStrategy [2018-04-11 20:44:13,043 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-04-11 20:44:13,045 INFO L270 TraceCheckSpWp]: Computing forward predicates... [2018-04-11 20:44:13,074 INFO L700 Elim1Store]: detected not equals via solver [2018-04-11 20:44:13,075 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 [2018-04-11 20:44:13,077 INFO L700 Elim1Store]: detected not equals via solver [2018-04-11 20:44:13,078 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 [2018-04-11 20:44:13,078 INFO L267 ElimStorePlain]: Start of recursive call 3: End of recursive call: and 1 xjuncts. [2018-04-11 20:44:13,083 INFO L267 ElimStorePlain]: Start of recursive call 2: 1 dim-1 vars, End of recursive call: and 1 xjuncts. [2018-04-11 20:44:13,087 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. [2018-04-11 20:44:13,087 INFO L202 ElimStorePlain]: Needed 3 recursive calls to eliminate 3 variables, input treesize:23, output treesize:15 [2018-04-11 20:44:13,105 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 [2018-04-11 20:44:13,109 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 [2018-04-11 20:44:13,113 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-04-11 20:44:13,113 INFO L314 TraceCheckSpWp]: Computing backward predicates... [2018-04-11 20:44:13,145 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 [2018-04-11 20:44:13,148 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 [2018-04-11 20:44:13,178 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-04-11 20:44:13,198 INFO L320 seRefinementStrategy]: Constructing automaton from 2 perfect and 0 imperfect interpolant sequences. [2018-04-11 20:44:13,198 INFO L335 seRefinementStrategy]: Number of different interpolants: perfect sequences [7, 6] imperfect sequences [] total 11 [2018-04-11 20:44:13,199 INFO L442 AbstractCegarLoop]: Interpolant automaton has 12 states [2018-04-11 20:44:13,199 INFO L132 InterpolantAutomaton]: Constructing interpolant automaton starting with 12 interpolants. [2018-04-11 20:44:13,199 INFO L133 InterpolantAutomaton]: CoverageRelationStatistics Valid=23, Invalid=45, Unknown=4, NotChecked=60, Total=132 [2018-04-11 20:44:13,199 INFO L87 Difference]: Start difference. First operand 148 states and 163 transitions. Second operand 12 states. [2018-04-11 20:44:13,215 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 [2018-04-11 20:44:13,514 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-04-11 20:44:13,514 INFO L93 Difference]: Finished difference Result 154 states and 163 transitions. [2018-04-11 20:44:13,514 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 11 states. [2018-04-11 20:44:13,515 INFO L78 Accepts]: Start accepts. Automaton has 12 states. Word has length 42 [2018-04-11 20:44:13,515 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-04-11 20:44:13,515 INFO L225 Difference]: With dead ends: 154 [2018-04-11 20:44:13,515 INFO L226 Difference]: Without dead ends: 140 [2018-04-11 20:44:13,516 INFO L567 BasicCegarLoop]: 0 DeclaredPredicates, 91 GetRequests, 73 SyntacticMatches, 2 SemanticMatches, 16 ConstructedPredicates, 5 IntricatePredicates, 0 DeprecatedPredicates, 12 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=45, Invalid=125, Unknown=6, NotChecked=130, Total=306 [2018-04-11 20:44:13,516 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 140 states. [2018-04-11 20:44:13,524 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 140 to 79. [2018-04-11 20:44:13,524 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 79 states. [2018-04-11 20:44:13,525 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 79 states to 79 states and 83 transitions. [2018-04-11 20:44:13,525 INFO L78 Accepts]: Start accepts. Automaton has 79 states and 83 transitions. Word has length 42 [2018-04-11 20:44:13,525 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-04-11 20:44:13,526 INFO L459 AbstractCegarLoop]: Abstraction has 79 states and 83 transitions. [2018-04-11 20:44:13,526 INFO L460 AbstractCegarLoop]: Interpolant automaton has 12 states. [2018-04-11 20:44:13,526 INFO L276 IsEmpty]: Start isEmpty. Operand 79 states and 83 transitions. [2018-04-11 20:44:13,526 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 49 [2018-04-11 20:44:13,526 INFO L347 BasicCegarLoop]: Found error trace [2018-04-11 20:44:13,527 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] [2018-04-11 20:44:13,527 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]=== [2018-04-11 20:44:13,527 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 [2018-04-11 20:44:13,534 INFO L68 tionRefinementEngine]: Using refinement strategy FixedRefinementStrategy [2018-04-11 20:44:13,549 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-04-11 20:44:13,552 INFO L270 TraceCheckSpWp]: Computing forward predicates... [2018-04-11 20:44:13,564 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 [2018-04-11 20:44:13,564 INFO L267 ElimStorePlain]: Start of recursive call 2: End of recursive call: and 1 xjuncts. [2018-04-11 20:44:13,568 INFO L267 ElimStorePlain]: Start of recursive call 1: 1 dim-1 vars, End of recursive call: and 1 xjuncts. [2018-04-11 20:44:13,568 INFO L202 ElimStorePlain]: Needed 2 recursive calls to eliminate 1 variables, input treesize:15, output treesize:14 [2018-04-11 20:44:13,581 INFO L700 Elim1Store]: detected not equals via solver [2018-04-11 20:44:13,582 INFO L700 Elim1Store]: detected not equals via solver [2018-04-11 20:44:13,583 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 [2018-04-11 20:44:13,583 INFO L267 ElimStorePlain]: Start of recursive call 2: End of recursive call: and 1 xjuncts. [2018-04-11 20:44:13,587 INFO L267 ElimStorePlain]: Start of recursive call 1: 1 dim-1 vars, End of recursive call: and 1 xjuncts. [2018-04-11 20:44:13,587 INFO L202 ElimStorePlain]: Needed 2 recursive calls to eliminate 1 variables, input treesize:19, output treesize:13 [2018-04-11 20:44:13,611 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 [2018-04-11 20:44:13,613 INFO L477 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 14 treesize of output 13 [2018-04-11 20:44:13,613 INFO L267 ElimStorePlain]: Start of recursive call 3: End of recursive call: and 1 xjuncts. [2018-04-11 20:44:13,615 INFO L267 ElimStorePlain]: Start of recursive call 2: 1 dim-1 vars, End of recursive call: and 1 xjuncts. [2018-04-11 20:44:13,623 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. [2018-04-11 20:44:13,623 INFO L202 ElimStorePlain]: Needed 3 recursive calls to eliminate 3 variables, input treesize:39, output treesize:35 [2018-04-11 20:44:13,643 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 [2018-04-11 20:44:13,645 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 [2018-04-11 20:44:13,645 INFO L267 ElimStorePlain]: Start of recursive call 3: End of recursive call: and 1 xjuncts. [2018-04-11 20:44:13,649 INFO L267 ElimStorePlain]: Start of recursive call 2: 1 dim-1 vars, End of recursive call: and 1 xjuncts. [2018-04-11 20:44:13,656 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. [2018-04-11 20:44:13,657 INFO L202 ElimStorePlain]: Needed 3 recursive calls to eliminate 6 variables, input treesize:49, output treesize:45 [2018-04-11 20:44:14,027 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 [2018-04-11 20:44:14,029 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 [2018-04-11 20:44:14,030 INFO L267 ElimStorePlain]: Start of recursive call 3: End of recursive call: and 1 xjuncts. [2018-04-11 20:44:14,036 INFO L700 Elim1Store]: detected not equals via solver [2018-04-11 20:44:14,042 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 [2018-04-11 20:44:14,042 INFO L267 ElimStorePlain]: Start of recursive call 4: End of recursive call: and 2 xjuncts. [2018-04-11 20:44:14,053 INFO L267 ElimStorePlain]: Start of recursive call 2: 2 dim-1 vars, End of recursive call: and 2 xjuncts. [2018-04-11 20:44:14,071 INFO L267 ElimStorePlain]: Start of recursive call 1: 6 dim-0 vars, 1 dim-2 vars, End of recursive call: and 2 xjuncts. [2018-04-11 20:44:14,071 INFO L202 ElimStorePlain]: Needed 4 recursive calls to eliminate 7 variables, input treesize:70, output treesize:43 [2018-04-11 20:44:14,178 INFO L134 CoverageAnalysis]: Checked inductivity of 11 backedges. 2 proven. 9 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-04-11 20:44:14,179 INFO L314 TraceCheckSpWp]: Computing backward predicates... [2018-04-11 20:44:14,617 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 [2018-04-11 20:44:14,618 INFO L267 ElimStorePlain]: Start of recursive call 2: End of recursive call: and 1 xjuncts. [2018-04-11 20:44:14,628 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 [2018-04-11 20:44:14,648 INFO L682 Elim1Store]: detected equality via solver [2018-04-11 20:44:14,649 INFO L477 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 2 select indices, 2 select index equivalence classes, 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 [2018-04-11 20:44:14,650 INFO L267 ElimStorePlain]: Start of recursive call 4: End of recursive call: and 1 xjuncts. [2018-04-11 20:44:14,654 INFO L267 ElimStorePlain]: Start of recursive call 3: 1 dim-1 vars, End of recursive call: and 1 xjuncts. [2018-04-11 20:44:14,661 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. [2018-04-11 20:44:14,661 INFO L202 ElimStorePlain]: Needed 4 recursive calls to eliminate 4 variables, input treesize:58, output treesize:14 [2018-04-11 20:44:14,737 INFO L134 CoverageAnalysis]: Checked inductivity of 11 backedges. 0 proven. 11 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-04-11 20:44:14,756 INFO L320 seRefinementStrategy]: Constructing automaton from 0 perfect and 2 imperfect interpolant sequences. [2018-04-11 20:44:14,756 INFO L335 seRefinementStrategy]: Number of different interpolants: perfect sequences [] imperfect sequences [20, 16] total 34 [2018-04-11 20:44:14,757 INFO L442 AbstractCegarLoop]: Interpolant automaton has 35 states [2018-04-11 20:44:14,757 INFO L132 InterpolantAutomaton]: Constructing interpolant automaton starting with 35 interpolants. [2018-04-11 20:44:14,757 INFO L133 InterpolantAutomaton]: CoverageRelationStatistics Valid=126, Invalid=1064, Unknown=0, NotChecked=0, Total=1190 [2018-04-11 20:44:14,757 INFO L87 Difference]: Start difference. First operand 79 states and 83 transitions. Second operand 35 states. [2018-04-11 20:44:26,614 WARN L151 SmtUtils]: Spent 3802ms on a formula simplification. DAG size of input: 83 DAG size of output 70 [2018-04-11 20:44:33,415 WARN L151 SmtUtils]: Spent 6672ms on a formula simplification. DAG size of input: 79 DAG size of output 75 [2018-04-11 20:44:41,542 WARN L151 SmtUtils]: Spent 8075ms on a formula simplification. DAG size of input: 77 DAG size of output 73 [2018-04-11 20:44:49,685 WARN L151 SmtUtils]: Spent 8094ms on a formula simplification. DAG size of input: 97 DAG size of output 90 [2018-04-11 20:45:04,491 WARN L151 SmtUtils]: Spent 8076ms on a formula simplification. DAG size of input: 84 DAG size of output 74 [2018-04-11 20:45:09,613 WARN L151 SmtUtils]: Spent 4773ms on a formula simplification. DAG size of input: 82 DAG size of output 72 [2018-04-11 20:45:15,748 WARN L151 SmtUtils]: Spent 4074ms on a formula simplification. DAG size of input: 80 DAG size of output 70 [2018-04-11 20:45:18,740 WARN L151 SmtUtils]: Spent 2940ms on a formula simplification. DAG size of input: 100 DAG size of output 88 [2018-04-11 20:45:19,049 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-04-11 20:45:19,050 INFO L93 Difference]: Finished difference Result 100 states and 105 transitions. [2018-04-11 20:45:19,050 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 32 states. [2018-04-11 20:45:19,050 INFO L78 Accepts]: Start accepts. Automaton has 35 states. Word has length 48 [2018-04-11 20:45:19,050 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-04-11 20:45:19,050 INFO L225 Difference]: With dead ends: 100 [2018-04-11 20:45:19,051 INFO L226 Difference]: Without dead ends: 99 [2018-04-11 20:45:19,051 INFO L567 BasicCegarLoop]: 0 DeclaredPredicates, 119 GetRequests, 60 SyntacticMatches, 2 SemanticMatches, 57 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 697 ImplicationChecksByTransitivity, 63.8s TimeCoverageRelationStatistics Valid=576, Invalid=2842, Unknown=4, NotChecked=0, Total=3422 [2018-04-11 20:45:19,052 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 99 states. [2018-04-11 20:45:19,056 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 99 to 69. [2018-04-11 20:45:19,056 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 69 states. [2018-04-11 20:45:19,056 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 69 states to 69 states and 72 transitions. [2018-04-11 20:45:19,056 INFO L78 Accepts]: Start accepts. Automaton has 69 states and 72 transitions. Word has length 48 [2018-04-11 20:45:19,056 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-04-11 20:45:19,056 INFO L459 AbstractCegarLoop]: Abstraction has 69 states and 72 transitions. [2018-04-11 20:45:19,057 INFO L460 AbstractCegarLoop]: Interpolant automaton has 35 states. [2018-04-11 20:45:19,057 INFO L276 IsEmpty]: Start isEmpty. Operand 69 states and 72 transitions. [2018-04-11 20:45:19,057 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 53 [2018-04-11 20:45:19,057 INFO L347 BasicCegarLoop]: Found error trace [2018-04-11 20:45:19,057 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] [2018-04-11 20:45:19,057 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]=== [2018-04-11 20:45:19,057 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 [2018-04-11 20:45:19,063 INFO L68 tionRefinementEngine]: Using refinement strategy FixedRefinementStrategy [2018-04-11 20:45:19,079 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-04-11 20:45:19,081 INFO L270 TraceCheckSpWp]: Computing forward predicates... [2018-04-11 20:45:19,099 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-04-11 20:45:19,100 INFO L314 TraceCheckSpWp]: Computing backward predicates... [2018-04-11 20:45:19,107 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-04-11 20:45:19,131 INFO L320 seRefinementStrategy]: Constructing automaton from 2 perfect and 0 imperfect interpolant sequences. [2018-04-11 20:45:19,131 INFO L335 seRefinementStrategy]: Number of different interpolants: perfect sequences [6, 6] imperfect sequences [] total 6 [2018-04-11 20:45:19,131 INFO L442 AbstractCegarLoop]: Interpolant automaton has 7 states [2018-04-11 20:45:19,131 INFO L132 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2018-04-11 20:45:19,132 INFO L133 InterpolantAutomaton]: CoverageRelationStatistics Valid=11, Invalid=31, Unknown=0, NotChecked=0, Total=42 [2018-04-11 20:45:19,132 INFO L87 Difference]: Start difference. First operand 69 states and 72 transitions. Second operand 7 states. [2018-04-11 20:45:19,184 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-04-11 20:45:19,184 INFO L93 Difference]: Finished difference Result 71 states and 74 transitions. [2018-04-11 20:45:19,185 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2018-04-11 20:45:19,185 INFO L78 Accepts]: Start accepts. Automaton has 7 states. Word has length 52 [2018-04-11 20:45:19,185 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-04-11 20:45:19,185 INFO L225 Difference]: With dead ends: 71 [2018-04-11 20:45:19,185 INFO L226 Difference]: Without dead ends: 69 [2018-04-11 20:45:19,186 INFO L567 BasicCegarLoop]: 0 DeclaredPredicates, 106 GetRequests, 98 SyntacticMatches, 0 SemanticMatches, 8 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=29, Invalid=61, Unknown=0, NotChecked=0, Total=90 [2018-04-11 20:45:19,186 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 69 states. [2018-04-11 20:45:19,191 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 69 to 67. [2018-04-11 20:45:19,191 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 67 states. [2018-04-11 20:45:19,191 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 67 states to 67 states and 70 transitions. [2018-04-11 20:45:19,191 INFO L78 Accepts]: Start accepts. Automaton has 67 states and 70 transitions. Word has length 52 [2018-04-11 20:45:19,192 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-04-11 20:45:19,192 INFO L459 AbstractCegarLoop]: Abstraction has 67 states and 70 transitions. [2018-04-11 20:45:19,192 INFO L460 AbstractCegarLoop]: Interpolant automaton has 7 states. [2018-04-11 20:45:19,192 INFO L276 IsEmpty]: Start isEmpty. Operand 67 states and 70 transitions. [2018-04-11 20:45:19,192 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 53 [2018-04-11 20:45:19,192 INFO L347 BasicCegarLoop]: Found error trace [2018-04-11 20:45:19,192 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] [2018-04-11 20:45:19,193 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]=== [2018-04-11 20:45:19,193 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 [2018-04-11 20:45:19,198 INFO L68 tionRefinementEngine]: Using refinement strategy FixedRefinementStrategy [2018-04-11 20:45:19,214 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-04-11 20:45:19,217 INFO L270 TraceCheckSpWp]: Computing forward predicates... [2018-04-11 20:45:19,231 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 [2018-04-11 20:45:19,231 INFO L267 ElimStorePlain]: Start of recursive call 2: End of recursive call: and 1 xjuncts. [2018-04-11 20:45:19,242 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 [2018-04-11 20:45:19,242 INFO L267 ElimStorePlain]: Start of recursive call 3: End of recursive call: and 1 xjuncts. [2018-04-11 20:45:19,248 INFO L267 ElimStorePlain]: Start of recursive call 1: 1 dim-0 vars, 2 dim-1 vars, End of recursive call: and 1 xjuncts. [2018-04-11 20:45:19,248 INFO L202 ElimStorePlain]: Needed 3 recursive calls to eliminate 3 variables, input treesize:24, output treesize:19 [2018-04-11 20:45:19,267 INFO L700 Elim1Store]: detected not equals via solver [2018-04-11 20:45:19,268 INFO L700 Elim1Store]: detected not equals via solver [2018-04-11 20:45:19,268 INFO L477 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 1 select indices, 1 select index equivalence classes, 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 [2018-04-11 20:45:19,268 INFO L267 ElimStorePlain]: Start of recursive call 2: End of recursive call: and 1 xjuncts. [2018-04-11 20:45:19,278 INFO L700 Elim1Store]: detected not equals via solver [2018-04-11 20:45:19,279 INFO L700 Elim1Store]: detected not equals via solver [2018-04-11 20:45:19,279 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 [2018-04-11 20:45:19,280 INFO L267 ElimStorePlain]: Start of recursive call 3: End of recursive call: and 1 xjuncts. [2018-04-11 20:45:19,285 INFO L267 ElimStorePlain]: Start of recursive call 1: 1 dim-0 vars, 2 dim-1 vars, End of recursive call: and 1 xjuncts. [2018-04-11 20:45:19,285 INFO L202 ElimStorePlain]: Needed 3 recursive calls to eliminate 3 variables, input treesize:30, output treesize:18 [2018-04-11 20:45:19,383 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-04-11 20:45:19,383 INFO L314 TraceCheckSpWp]: Computing backward predicates... [2018-04-11 20:45:19,658 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 [2018-04-11 20:45:19,658 INFO L267 ElimStorePlain]: Start of recursive call 2: End of recursive call: and 1 xjuncts. [2018-04-11 20:45:19,662 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 [2018-04-11 20:45:19,671 WARN L307 Elim1Store]: Array PQE input equivalent to true [2018-04-11 20:45:19,672 INFO L267 ElimStorePlain]: Start of recursive call 4: End of recursive call: and 1 xjuncts. [2018-04-11 20:45:19,673 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 [2018-04-11 20:45:19,673 INFO L267 ElimStorePlain]: Start of recursive call 5: End of recursive call: and 1 xjuncts. [2018-04-11 20:45:19,676 INFO L267 ElimStorePlain]: Start of recursive call 3: 1 dim-1 vars, End of recursive call: and 1 xjuncts. [2018-04-11 20:45:19,678 INFO L267 ElimStorePlain]: Start of recursive call 1: 2 dim-0 vars, 2 dim-1 vars, End of recursive call: and 1 xjuncts. [2018-04-11 20:45:19,679 INFO L202 ElimStorePlain]: Needed 5 recursive calls to eliminate 4 variables, input treesize:21, output treesize:3 [2018-04-11 20:45:19,724 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-04-11 20:45:19,744 INFO L320 seRefinementStrategy]: Constructing automaton from 2 perfect and 0 imperfect interpolant sequences. [2018-04-11 20:45:19,745 INFO L335 seRefinementStrategy]: Number of different interpolants: perfect sequences [13, 12] imperfect sequences [] total 23 [2018-04-11 20:45:19,745 INFO L442 AbstractCegarLoop]: Interpolant automaton has 24 states [2018-04-11 20:45:19,746 INFO L132 InterpolantAutomaton]: Constructing interpolant automaton starting with 24 interpolants. [2018-04-11 20:45:19,746 INFO L133 InterpolantAutomaton]: CoverageRelationStatistics Valid=63, Invalid=489, Unknown=0, NotChecked=0, Total=552 [2018-04-11 20:45:19,746 INFO L87 Difference]: Start difference. First operand 67 states and 70 transitions. Second operand 24 states. [2018-04-11 20:45:20,144 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-04-11 20:45:20,144 INFO L93 Difference]: Finished difference Result 104 states and 108 transitions. [2018-04-11 20:45:20,144 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 15 states. [2018-04-11 20:45:20,144 INFO L78 Accepts]: Start accepts. Automaton has 24 states. Word has length 52 [2018-04-11 20:45:20,145 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-04-11 20:45:20,145 INFO L225 Difference]: With dead ends: 104 [2018-04-11 20:45:20,145 INFO L226 Difference]: Without dead ends: 100 [2018-04-11 20:45:20,146 INFO L567 BasicCegarLoop]: 0 DeclaredPredicates, 113 GetRequests, 80 SyntacticMatches, 1 SemanticMatches, 32 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 186 ImplicationChecksByTransitivity, 0.6s TimeCoverageRelationStatistics Valid=173, Invalid=949, Unknown=0, NotChecked=0, Total=1122 [2018-04-11 20:45:20,146 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 100 states. [2018-04-11 20:45:20,152 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 100 to 90. [2018-04-11 20:45:20,152 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 90 states. [2018-04-11 20:45:20,152 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 90 states to 90 states and 95 transitions. [2018-04-11 20:45:20,153 INFO L78 Accepts]: Start accepts. Automaton has 90 states and 95 transitions. Word has length 52 [2018-04-11 20:45:20,153 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-04-11 20:45:20,153 INFO L459 AbstractCegarLoop]: Abstraction has 90 states and 95 transitions. [2018-04-11 20:45:20,153 INFO L460 AbstractCegarLoop]: Interpolant automaton has 24 states. [2018-04-11 20:45:20,153 INFO L276 IsEmpty]: Start isEmpty. Operand 90 states and 95 transitions. [2018-04-11 20:45:20,153 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 56 [2018-04-11 20:45:20,154 INFO L347 BasicCegarLoop]: Found error trace [2018-04-11 20:45:20,154 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] [2018-04-11 20:45:20,154 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]=== [2018-04-11 20:45:20,154 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 [2018-04-11 20:45:20,161 INFO L68 tionRefinementEngine]: Using refinement strategy FixedRefinementStrategy [2018-04-11 20:45:20,179 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-04-11 20:45:20,181 INFO L270 TraceCheckSpWp]: Computing forward predicates... [2018-04-11 20:45:20,187 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 [2018-04-11 20:45:20,189 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 [2018-04-11 20:45:20,189 INFO L267 ElimStorePlain]: Start of recursive call 3: End of recursive call: and 1 xjuncts. [2018-04-11 20:45:20,191 INFO L267 ElimStorePlain]: Start of recursive call 2: 1 dim-1 vars, End of recursive call: and 1 xjuncts. [2018-04-11 20:45:20,196 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. [2018-04-11 20:45:20,196 INFO L202 ElimStorePlain]: Needed 3 recursive calls to eliminate 2 variables, input treesize:25, output treesize:21 [2018-04-11 20:45:20,296 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 [2018-04-11 20:45:20,302 INFO L477 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 2 select indices, 2 select index equivalence classes, 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 [2018-04-11 20:45:20,302 INFO L267 ElimStorePlain]: Start of recursive call 3: End of recursive call: and 2 xjuncts. [2018-04-11 20:45:20,306 INFO L267 ElimStorePlain]: Start of recursive call 2: 1 dim-1 vars, End of recursive call: and 2 xjuncts. [2018-04-11 20:45:20,316 INFO L267 ElimStorePlain]: Start of recursive call 1: 2 dim-0 vars, 1 dim-2 vars, End of recursive call: and 2 xjuncts. [2018-04-11 20:45:20,316 INFO L202 ElimStorePlain]: Needed 3 recursive calls to eliminate 3 variables, input treesize:38, output treesize:29 [2018-04-11 20:45:20,381 INFO L134 CoverageAnalysis]: Checked inductivity of 4 backedges. 0 proven. 4 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-04-11 20:45:20,381 INFO L314 TraceCheckSpWp]: Computing backward predicates... [2018-04-11 20:45:20,665 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 [2018-04-11 20:45:20,665 INFO L267 ElimStorePlain]: Start of recursive call 2: End of recursive call: and 1 xjuncts. [2018-04-11 20:45:20,673 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 [2018-04-11 20:45:20,682 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 [2018-04-11 20:45:20,683 INFO L267 ElimStorePlain]: Start of recursive call 4: End of recursive call: and 1 xjuncts. [2018-04-11 20:45:20,684 INFO L267 ElimStorePlain]: Start of recursive call 3: 1 dim-1 vars, End of recursive call: and 1 xjuncts. [2018-04-11 20:45:20,689 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. [2018-04-11 20:45:20,690 INFO L202 ElimStorePlain]: Needed 4 recursive calls to eliminate 5 variables, input treesize:35, output treesize:7 [2018-04-11 20:45:20,705 INFO L134 CoverageAnalysis]: Checked inductivity of 4 backedges. 0 proven. 4 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-04-11 20:45:20,725 INFO L320 seRefinementStrategy]: Constructing automaton from 0 perfect and 2 imperfect interpolant sequences. [2018-04-11 20:45:20,725 INFO L335 seRefinementStrategy]: Number of different interpolants: perfect sequences [] imperfect sequences [11, 11] total 20 [2018-04-11 20:45:20,726 INFO L442 AbstractCegarLoop]: Interpolant automaton has 21 states [2018-04-11 20:45:20,726 INFO L132 InterpolantAutomaton]: Constructing interpolant automaton starting with 21 interpolants. [2018-04-11 20:45:20,726 INFO L133 InterpolantAutomaton]: CoverageRelationStatistics Valid=55, Invalid=365, Unknown=0, NotChecked=0, Total=420 [2018-04-11 20:45:20,726 INFO L87 Difference]: Start difference. First operand 90 states and 95 transitions. Second operand 21 states. [2018-04-11 20:45:21,280 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-04-11 20:45:21,280 INFO L93 Difference]: Finished difference Result 114 states and 119 transitions. [2018-04-11 20:45:21,306 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 16 states. [2018-04-11 20:45:21,306 INFO L78 Accepts]: Start accepts. Automaton has 21 states. Word has length 55 [2018-04-11 20:45:21,306 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-04-11 20:45:21,307 INFO L225 Difference]: With dead ends: 114 [2018-04-11 20:45:21,307 INFO L226 Difference]: Without dead ends: 113 [2018-04-11 20:45:21,307 INFO L567 BasicCegarLoop]: 0 DeclaredPredicates, 118 GetRequests, 89 SyntacticMatches, 1 SemanticMatches, 28 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 98 ImplicationChecksByTransitivity, 0.7s TimeCoverageRelationStatistics Valid=141, Invalid=729, Unknown=0, NotChecked=0, Total=870 [2018-04-11 20:45:21,307 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 113 states. [2018-04-11 20:45:21,315 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 113 to 105. [2018-04-11 20:45:21,315 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 105 states. [2018-04-11 20:45:21,315 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 105 states to 105 states and 110 transitions. [2018-04-11 20:45:21,315 INFO L78 Accepts]: Start accepts. Automaton has 105 states and 110 transitions. Word has length 55 [2018-04-11 20:45:21,316 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-04-11 20:45:21,316 INFO L459 AbstractCegarLoop]: Abstraction has 105 states and 110 transitions. [2018-04-11 20:45:21,316 INFO L460 AbstractCegarLoop]: Interpolant automaton has 21 states. [2018-04-11 20:45:21,316 INFO L276 IsEmpty]: Start isEmpty. Operand 105 states and 110 transitions. [2018-04-11 20:45:21,316 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 60 [2018-04-11 20:45:21,316 INFO L347 BasicCegarLoop]: Found error trace [2018-04-11 20:45:21,316 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] [2018-04-11 20:45:21,316 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]=== [2018-04-11 20:45:21,316 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 [2018-04-11 20:45:21,322 INFO L68 tionRefinementEngine]: Using refinement strategy FixedRefinementStrategy [2018-04-11 20:45:21,341 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-04-11 20:45:21,344 INFO L270 TraceCheckSpWp]: Computing forward predicates... [2018-04-11 20:45:21,356 INFO L477 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 6 treesize of output 5 [2018-04-11 20:45:21,356 INFO L267 ElimStorePlain]: Start of recursive call 2: End of recursive call: and 1 xjuncts. [2018-04-11 20:45:21,363 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 [2018-04-11 20:45:21,363 INFO L267 ElimStorePlain]: Start of recursive call 3: End of recursive call: and 1 xjuncts. [2018-04-11 20:45:21,369 INFO L267 ElimStorePlain]: Start of recursive call 1: 1 dim-0 vars, 2 dim-1 vars, End of recursive call: and 1 xjuncts. [2018-04-11 20:45:21,369 INFO L202 ElimStorePlain]: Needed 3 recursive calls to eliminate 3 variables, input treesize:24, output treesize:19 [2018-04-11 20:45:21,387 INFO L700 Elim1Store]: detected not equals via solver [2018-04-11 20:45:21,388 INFO L700 Elim1Store]: detected not equals via solver [2018-04-11 20:45:21,388 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 [2018-04-11 20:45:21,388 INFO L267 ElimStorePlain]: Start of recursive call 2: End of recursive call: and 1 xjuncts. [2018-04-11 20:45:21,398 INFO L700 Elim1Store]: detected not equals via solver [2018-04-11 20:45:21,399 INFO L700 Elim1Store]: detected not equals via solver [2018-04-11 20:45:21,400 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 [2018-04-11 20:45:21,400 INFO L267 ElimStorePlain]: Start of recursive call 3: End of recursive call: and 1 xjuncts. [2018-04-11 20:45:21,405 INFO L267 ElimStorePlain]: Start of recursive call 1: 2 dim-1 vars, End of recursive call: and 1 xjuncts. [2018-04-11 20:45:21,405 INFO L202 ElimStorePlain]: Needed 3 recursive calls to eliminate 2 variables, input treesize:30, output treesize:19 [2018-04-11 20:45:21,428 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 [2018-04-11 20:45:21,429 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 [2018-04-11 20:45:21,429 INFO L267 ElimStorePlain]: Start of recursive call 3: End of recursive call: and 1 xjuncts. [2018-04-11 20:45:21,431 INFO L267 ElimStorePlain]: Start of recursive call 2: 1 dim-1 vars, End of recursive call: and 1 xjuncts. [2018-04-11 20:45:21,436 INFO L267 ElimStorePlain]: Start of recursive call 1: 1 dim-2 vars, End of recursive call: and 1 xjuncts. [2018-04-11 20:45:21,436 INFO L202 ElimStorePlain]: Needed 3 recursive calls to eliminate 1 variables, input treesize:34, output treesize:30 [2018-04-11 20:45:21,618 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 [2018-04-11 20:45:21,624 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 [2018-04-11 20:45:21,624 INFO L267 ElimStorePlain]: Start of recursive call 3: End of recursive call: and 2 xjuncts. [2018-04-11 20:45:21,627 INFO L267 ElimStorePlain]: Start of recursive call 2: 1 dim-1 vars, End of recursive call: and 2 xjuncts. [2018-04-11 20:45:21,635 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. [2018-04-11 20:45:21,636 INFO L202 ElimStorePlain]: Needed 3 recursive calls to eliminate 3 variables, input treesize:40, output treesize:55 [2018-04-11 20:45:21,764 INFO L134 CoverageAnalysis]: Checked inductivity of 3 backedges. 0 proven. 3 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-04-11 20:45:21,765 INFO L314 TraceCheckSpWp]: Computing backward predicates... [2018-04-11 20:45:22,174 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 [2018-04-11 20:45:22,182 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 [2018-04-11 20:45:22,183 INFO L267 ElimStorePlain]: Start of recursive call 3: End of recursive call: and 1 xjuncts. [2018-04-11 20:45:22,184 INFO L267 ElimStorePlain]: Start of recursive call 2: 1 dim-1 vars, End of recursive call: and 1 xjuncts. [2018-04-11 20:45:22,187 INFO L267 ElimStorePlain]: Start of recursive call 1: 1 dim-0 vars, 1 dim-2 vars, End of recursive call: and 1 xjuncts. [2018-04-11 20:45:22,187 INFO L202 ElimStorePlain]: Needed 3 recursive calls to eliminate 2 variables, input treesize:24, output treesize:14 [2018-04-11 20:45:22,309 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 [2018-04-11 20:45:22,310 INFO L267 ElimStorePlain]: Start of recursive call 2: End of recursive call: and 1 xjuncts. [2018-04-11 20:45:22,314 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 [2018-04-11 20:45:22,321 WARN L307 Elim1Store]: Array PQE input equivalent to true [2018-04-11 20:45:22,322 INFO L267 ElimStorePlain]: Start of recursive call 4: End of recursive call: and 1 xjuncts. [2018-04-11 20:45:22,323 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 [2018-04-11 20:45:22,323 INFO L267 ElimStorePlain]: Start of recursive call 5: End of recursive call: and 1 xjuncts. [2018-04-11 20:45:22,325 INFO L267 ElimStorePlain]: Start of recursive call 3: 1 dim-1 vars, End of recursive call: and 1 xjuncts. [2018-04-11 20:45:22,328 INFO L267 ElimStorePlain]: Start of recursive call 1: 2 dim-0 vars, 2 dim-1 vars, End of recursive call: and 1 xjuncts. [2018-04-11 20:45:22,328 INFO L202 ElimStorePlain]: Needed 5 recursive calls to eliminate 4 variables, input treesize:24, output treesize:7 [2018-04-11 20:45:22,401 INFO L134 CoverageAnalysis]: Checked inductivity of 3 backedges. 0 proven. 3 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-04-11 20:45:22,421 INFO L320 seRefinementStrategy]: Constructing automaton from 0 perfect and 2 imperfect interpolant sequences. [2018-04-11 20:45:22,421 INFO L335 seRefinementStrategy]: Number of different interpolants: perfect sequences [] imperfect sequences [22, 21] total 41 [2018-04-11 20:45:22,421 INFO L442 AbstractCegarLoop]: Interpolant automaton has 42 states [2018-04-11 20:45:22,421 INFO L132 InterpolantAutomaton]: Constructing interpolant automaton starting with 42 interpolants. [2018-04-11 20:45:22,422 INFO L133 InterpolantAutomaton]: CoverageRelationStatistics Valid=127, Invalid=1595, Unknown=0, NotChecked=0, Total=1722 [2018-04-11 20:45:22,422 INFO L87 Difference]: Start difference. First operand 105 states and 110 transitions. Second operand 42 states. [2018-04-11 20:45:24,601 WARN L151 SmtUtils]: Spent 128ms on a formula simplification. DAG size of input: 63 DAG size of output 54 [2018-04-11 20:45:25,031 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-04-11 20:45:25,032 INFO L93 Difference]: Finished difference Result 150 states and 157 transitions. [2018-04-11 20:45:25,032 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 40 states. [2018-04-11 20:45:25,032 INFO L78 Accepts]: Start accepts. Automaton has 42 states. Word has length 59 [2018-04-11 20:45:25,032 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-04-11 20:45:25,033 INFO L225 Difference]: With dead ends: 150 [2018-04-11 20:45:25,033 INFO L226 Difference]: Without dead ends: 146 [2018-04-11 20:45:25,034 INFO L567 BasicCegarLoop]: 0 DeclaredPredicates, 150 GetRequests, 76 SyntacticMatches, 1 SemanticMatches, 73 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1078 ImplicationChecksByTransitivity, 2.8s TimeCoverageRelationStatistics Valid=610, Invalid=4940, Unknown=0, NotChecked=0, Total=5550 [2018-04-11 20:45:25,034 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 146 states. [2018-04-11 20:45:25,043 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 146 to 112. [2018-04-11 20:45:25,043 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 112 states. [2018-04-11 20:45:25,043 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 112 states to 112 states and 118 transitions. [2018-04-11 20:45:25,043 INFO L78 Accepts]: Start accepts. Automaton has 112 states and 118 transitions. Word has length 59 [2018-04-11 20:45:25,044 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-04-11 20:45:25,044 INFO L459 AbstractCegarLoop]: Abstraction has 112 states and 118 transitions. [2018-04-11 20:45:25,044 INFO L460 AbstractCegarLoop]: Interpolant automaton has 42 states. [2018-04-11 20:45:25,044 INFO L276 IsEmpty]: Start isEmpty. Operand 112 states and 118 transitions. [2018-04-11 20:45:25,044 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 67 [2018-04-11 20:45:25,044 INFO L347 BasicCegarLoop]: Found error trace [2018-04-11 20:45:25,044 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] [2018-04-11 20:45:25,044 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]=== [2018-04-11 20:45:25,045 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 [2018-04-11 20:45:25,050 INFO L68 tionRefinementEngine]: Using refinement strategy FixedRefinementStrategy [2018-04-11 20:45:25,071 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-04-11 20:45:25,074 INFO L270 TraceCheckSpWp]: Computing forward predicates... [2018-04-11 20:45:25,086 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 [2018-04-11 20:45:25,086 INFO L267 ElimStorePlain]: Start of recursive call 2: End of recursive call: and 1 xjuncts. [2018-04-11 20:45:25,094 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 [2018-04-11 20:45:25,094 INFO L267 ElimStorePlain]: Start of recursive call 3: End of recursive call: and 1 xjuncts. [2018-04-11 20:45:25,101 INFO L267 ElimStorePlain]: Start of recursive call 1: 2 dim-1 vars, End of recursive call: and 1 xjuncts. [2018-04-11 20:45:25,101 INFO L202 ElimStorePlain]: Needed 3 recursive calls to eliminate 2 variables, input treesize:27, output treesize:25 [2018-04-11 20:45:25,124 INFO L700 Elim1Store]: detected not equals via solver [2018-04-11 20:45:25,125 INFO L700 Elim1Store]: detected not equals via solver [2018-04-11 20:45:25,126 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 [2018-04-11 20:45:25,126 INFO L267 ElimStorePlain]: Start of recursive call 2: End of recursive call: and 1 xjuncts. [2018-04-11 20:45:25,138 INFO L700 Elim1Store]: detected not equals via solver [2018-04-11 20:45:25,139 INFO L700 Elim1Store]: detected not equals via solver [2018-04-11 20:45:25,139 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 [2018-04-11 20:45:25,139 INFO L267 ElimStorePlain]: Start of recursive call 3: End of recursive call: and 1 xjuncts. [2018-04-11 20:45:25,146 INFO L267 ElimStorePlain]: Start of recursive call 1: 2 dim-1 vars, End of recursive call: and 1 xjuncts. [2018-04-11 20:45:25,147 INFO L202 ElimStorePlain]: Needed 3 recursive calls to eliminate 2 variables, input treesize:36, output treesize:25 [2018-04-11 20:45:25,174 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 [2018-04-11 20:45:25,176 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 [2018-04-11 20:45:25,176 INFO L267 ElimStorePlain]: Start of recursive call 3: End of recursive call: and 1 xjuncts. [2018-04-11 20:45:25,177 INFO L267 ElimStorePlain]: Start of recursive call 2: 1 dim-1 vars, End of recursive call: and 1 xjuncts. [2018-04-11 20:45:25,184 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. [2018-04-11 20:45:25,184 INFO L202 ElimStorePlain]: Needed 3 recursive calls to eliminate 2 variables, input treesize:41, output treesize:37 [2018-04-11 20:45:25,199 INFO L700 Elim1Store]: detected not equals via solver [2018-04-11 20:45:25,202 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 [2018-04-11 20:45:25,203 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 [2018-04-11 20:45:25,204 INFO L267 ElimStorePlain]: Start of recursive call 3: End of recursive call: and 1 xjuncts. [2018-04-11 20:45:25,208 INFO L267 ElimStorePlain]: Start of recursive call 2: 1 dim-1 vars, End of recursive call: and 1 xjuncts. [2018-04-11 20:45:25,216 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. [2018-04-11 20:45:25,216 INFO L202 ElimStorePlain]: Needed 3 recursive calls to eliminate 2 variables, input treesize:52, output treesize:48 [2018-04-11 20:45:25,717 INFO L700 Elim1Store]: detected not equals via solver [2018-04-11 20:45:25,719 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 [2018-04-11 20:45:25,725 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 [2018-04-11 20:45:25,725 INFO L267 ElimStorePlain]: Start of recursive call 3: End of recursive call: and 2 xjuncts. [2018-04-11 20:45:25,734 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 [2018-04-11 20:45:25,735 INFO L267 ElimStorePlain]: Start of recursive call 4: End of recursive call: and 1 xjuncts. [2018-04-11 20:45:25,740 INFO L267 ElimStorePlain]: Start of recursive call 2: 2 dim-1 vars, End of recursive call: and 2 xjuncts. [2018-04-11 20:45:25,757 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. [2018-04-11 20:45:25,758 INFO L202 ElimStorePlain]: Needed 4 recursive calls to eliminate 5 variables, input treesize:73, output treesize:128 [2018-04-11 20:45:26,019 INFO L134 CoverageAnalysis]: Checked inductivity of 13 backedges. 0 proven. 13 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-04-11 20:45:26,020 INFO L314 TraceCheckSpWp]: Computing backward predicates... [2018-04-11 20:45:27,002 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 [2018-04-11 20:45:27,026 INFO L477 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 15 treesize of output 14 [2018-04-11 20:45:27,034 INFO L267 ElimStorePlain]: Start of recursive call 3: End of recursive call: and 1 xjuncts. [2018-04-11 20:45:27,048 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 [2018-04-11 20:45:27,081 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 [2018-04-11 20:45:27,082 INFO L267 ElimStorePlain]: Start of recursive call 5: End of recursive call: and 2 xjuncts. [2018-04-11 20:45:27,099 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 [2018-04-11 20:45:27,100 INFO L267 ElimStorePlain]: Start of recursive call 6: End of recursive call: and 1 xjuncts. [2018-04-11 20:45:27,112 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 [2018-04-11 20:45:27,113 INFO L267 ElimStorePlain]: Start of recursive call 7: End of recursive call: and 1 xjuncts. [2018-04-11 20:45:27,123 INFO L267 ElimStorePlain]: Start of recursive call 4: 3 dim-1 vars, End of recursive call: and 2 xjuncts. [2018-04-11 20:45:27,138 INFO L267 ElimStorePlain]: Start of recursive call 2: 1 dim-1 vars, 1 dim-2 vars, End of recursive call: and 4 xjuncts. [2018-04-11 20:45:27,159 INFO L267 ElimStorePlain]: Start of recursive call 1: 2 dim-0 vars, 1 dim-2 vars, End of recursive call: and 2 xjuncts. [2018-04-11 20:45:27,159 INFO L202 ElimStorePlain]: Needed 7 recursive calls to eliminate 3 variables, input treesize:89, output treesize:100 [2018-04-11 20:45:27,485 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 [2018-04-11 20:45:27,502 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 [2018-04-11 20:45:27,502 INFO L267 ElimStorePlain]: Start of recursive call 3: End of recursive call: and 1 xjuncts. [2018-04-11 20:45:27,507 INFO L267 ElimStorePlain]: Start of recursive call 2: 1 dim-1 vars, End of recursive call: and 1 xjuncts. [2018-04-11 20:45:27,522 INFO L477 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 1 select indices, 1 select index equivalence classes, 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 [2018-04-11 20:45:27,522 INFO L267 ElimStorePlain]: Start of recursive call 4: End of recursive call: and 1 xjuncts. [2018-04-11 20:45:27,534 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 [2018-04-11 20:45:27,534 INFO L267 ElimStorePlain]: Start of recursive call 5: End of recursive call: and 1 xjuncts. [2018-04-11 20:45:27,545 INFO L477 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 0 select indices, 0 select index equivalence classes, 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 [2018-04-11 20:45:27,560 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 [2018-04-11 20:45:27,560 INFO L267 ElimStorePlain]: Start of recursive call 7: End of recursive call: and 1 xjuncts. [2018-04-11 20:45:27,564 INFO L267 ElimStorePlain]: Start of recursive call 6: 1 dim-1 vars, End of recursive call: and 1 xjuncts. [2018-04-11 20:45:27,574 INFO L267 ElimStorePlain]: Start of recursive call 1: 4 dim-0 vars, 4 dim-1 vars, End of recursive call: and 2 xjuncts. [2018-04-11 20:45:27,574 INFO L202 ElimStorePlain]: Needed 7 recursive calls to eliminate 8 variables, input treesize:72, output treesize:25 [2018-04-11 20:45:27,715 INFO L134 CoverageAnalysis]: Checked inductivity of 13 backedges. 0 proven. 13 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-04-11 20:45:27,747 INFO L320 seRefinementStrategy]: Constructing automaton from 0 perfect and 2 imperfect interpolant sequences. [2018-04-11 20:45:27,747 INFO L335 seRefinementStrategy]: Number of different interpolants: perfect sequences [] imperfect sequences [27, 26] total 51 [2018-04-11 20:45:27,747 INFO L442 AbstractCegarLoop]: Interpolant automaton has 52 states [2018-04-11 20:45:27,747 INFO L132 InterpolantAutomaton]: Constructing interpolant automaton starting with 52 interpolants. [2018-04-11 20:45:27,748 INFO L133 InterpolantAutomaton]: CoverageRelationStatistics Valid=189, Invalid=2463, Unknown=0, NotChecked=0, Total=2652 [2018-04-11 20:45:27,748 INFO L87 Difference]: Start difference. First operand 112 states and 118 transitions. Second operand 52 states. [2018-04-11 20:45:29,365 WARN L151 SmtUtils]: Spent 1482ms on a formula simplification. DAG size of input: 100 DAG size of output 98 [2018-04-11 20:45:34,201 WARN L151 SmtUtils]: Spent 4722ms on a formula simplification. DAG size of input: 95 DAG size of output 93 [2018-04-11 20:45:35,086 WARN L151 SmtUtils]: Spent 742ms on a formula simplification. DAG size of input: 93 DAG size of output 74 [2018-04-11 20:45:43,652 WARN L151 SmtUtils]: Spent 2097ms on a formula simplification. DAG size of input: 85 DAG size of output 66 [2018-04-11 20:45:44,289 WARN L151 SmtUtils]: Spent 246ms on a formula simplification. DAG size of input: 60 DAG size of output 57 [2018-04-11 20:45:45,535 WARN L151 SmtUtils]: Spent 178ms on a formula simplification. DAG size of input: 67 DAG size of output 64 [2018-04-11 20:45:46,812 WARN L151 SmtUtils]: Spent 303ms on a formula simplification. DAG size of input: 90 DAG size of output 86 [2018-04-11 20:45:47,140 WARN L151 SmtUtils]: Spent 149ms on a formula simplification. DAG size of input: 88 DAG size of output 84 [2018-04-11 20:45:47,465 WARN L151 SmtUtils]: Spent 130ms on a formula simplification. DAG size of input: 79 DAG size of output 78 [2018-04-11 20:45:47,753 WARN L151 SmtUtils]: Spent 190ms on a formula simplification. DAG size of input: 97 DAG size of output 93 [2018-04-11 20:45:48,213 WARN L151 SmtUtils]: Spent 109ms on a formula simplification. DAG size of input: 91 DAG size of output 90 [2018-04-11 20:45:48,670 WARN L151 SmtUtils]: Spent 197ms on a formula simplification. DAG size of input: 79 DAG size of output 78 [2018-04-11 20:45:49,213 WARN L151 SmtUtils]: Spent 259ms on a formula simplification. DAG size of input: 101 DAG size of output 94 [2018-04-11 20:45:50,038 WARN L151 SmtUtils]: Spent 115ms on a formula simplification. DAG size of input: 66 DAG size of output 63 [2018-04-11 20:45:51,528 WARN L148 SmtUtils]: Spent 130ms on a formula simplification that was a NOOP. DAG size: 54 [2018-04-11 20:45:52,529 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-04-11 20:45:52,529 INFO L93 Difference]: Finished difference Result 210 states and 221 transitions. [2018-04-11 20:45:52,531 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 66 states. [2018-04-11 20:45:52,531 INFO L78 Accepts]: Start accepts. Automaton has 52 states. Word has length 66 [2018-04-11 20:45:52,532 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-04-11 20:45:52,534 INFO L225 Difference]: With dead ends: 210 [2018-04-11 20:45:52,534 INFO L226 Difference]: Without dead ends: 204 [2018-04-11 20:45:52,536 INFO L567 BasicCegarLoop]: 0 DeclaredPredicates, 188 GetRequests, 80 SyntacticMatches, 1 SemanticMatches, 107 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 2835 ImplicationChecksByTransitivity, 19.6s TimeCoverageRelationStatistics Valid=1022, Invalid=10750, Unknown=0, NotChecked=0, Total=11772 [2018-04-11 20:45:52,537 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 204 states. [2018-04-11 20:45:52,549 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 204 to 126. [2018-04-11 20:45:52,549 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 126 states. [2018-04-11 20:45:52,550 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 126 states to 126 states and 134 transitions. [2018-04-11 20:45:52,550 INFO L78 Accepts]: Start accepts. Automaton has 126 states and 134 transitions. Word has length 66 [2018-04-11 20:45:52,550 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-04-11 20:45:52,550 INFO L459 AbstractCegarLoop]: Abstraction has 126 states and 134 transitions. [2018-04-11 20:45:52,550 INFO L460 AbstractCegarLoop]: Interpolant automaton has 52 states. [2018-04-11 20:45:52,550 INFO L276 IsEmpty]: Start isEmpty. Operand 126 states and 134 transitions. [2018-04-11 20:45:52,551 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 68 [2018-04-11 20:45:52,551 INFO L347 BasicCegarLoop]: Found error trace [2018-04-11 20:45:52,551 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] [2018-04-11 20:45:52,551 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]=== [2018-04-11 20:45:52,551 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 [2018-04-11 20:45:52,559 INFO L68 tionRefinementEngine]: Using refinement strategy FixedRefinementStrategy [2018-04-11 20:45:52,580 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-04-11 20:45:52,582 INFO L270 TraceCheckSpWp]: Computing forward predicates... [2018-04-11 20:45:52,589 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 [2018-04-11 20:45:52,589 INFO L267 ElimStorePlain]: Start of recursive call 2: End of recursive call: and 1 xjuncts. [2018-04-11 20:45:52,595 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 [2018-04-11 20:45:52,595 INFO L267 ElimStorePlain]: Start of recursive call 3: End of recursive call: and 1 xjuncts. [2018-04-11 20:45:52,600 INFO L267 ElimStorePlain]: Start of recursive call 1: 1 dim-0 vars, 2 dim-1 vars, End of recursive call: and 1 xjuncts. [2018-04-11 20:45:52,600 INFO L202 ElimStorePlain]: Needed 3 recursive calls to eliminate 3 variables, input treesize:21, output treesize:16 [2018-04-11 20:45:52,616 INFO L700 Elim1Store]: detected not equals via solver [2018-04-11 20:45:52,616 INFO L700 Elim1Store]: detected not equals via solver [2018-04-11 20:45:52,617 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 [2018-04-11 20:45:52,617 INFO L267 ElimStorePlain]: Start of recursive call 2: End of recursive call: and 1 xjuncts. [2018-04-11 20:45:52,626 INFO L700 Elim1Store]: detected not equals via solver [2018-04-11 20:45:52,627 INFO L700 Elim1Store]: detected not equals via solver [2018-04-11 20:45:52,627 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 [2018-04-11 20:45:52,627 INFO L267 ElimStorePlain]: Start of recursive call 3: End of recursive call: and 1 xjuncts. [2018-04-11 20:45:52,632 INFO L267 ElimStorePlain]: Start of recursive call 1: 1 dim-0 vars, 2 dim-1 vars, End of recursive call: and 1 xjuncts. [2018-04-11 20:45:52,632 INFO L202 ElimStorePlain]: Needed 3 recursive calls to eliminate 3 variables, input treesize:27, output treesize:13 [2018-04-11 20:45:52,910 INFO L134 CoverageAnalysis]: Checked inductivity of 14 backedges. 0 proven. 14 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-04-11 20:45:52,911 INFO L314 TraceCheckSpWp]: Computing backward predicates... [2018-04-11 20:45:53,479 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 [2018-04-11 20:45:53,479 INFO L267 ElimStorePlain]: Start of recursive call 2: End of recursive call: and 1 xjuncts. [2018-04-11 20:45:53,484 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 [2018-04-11 20:45:53,492 INFO L477 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 1 select indices, 1 select index equivalence classes, 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 [2018-04-11 20:45:53,492 INFO L267 ElimStorePlain]: Start of recursive call 4: End of recursive call: and 1 xjuncts. [2018-04-11 20:45:53,493 WARN L307 Elim1Store]: Array PQE input equivalent to true [2018-04-11 20:45:53,493 INFO L267 ElimStorePlain]: Start of recursive call 5: End of recursive call: and 1 xjuncts. [2018-04-11 20:45:53,495 INFO L267 ElimStorePlain]: Start of recursive call 3: 1 dim-1 vars, End of recursive call: and 1 xjuncts. [2018-04-11 20:45:53,498 INFO L267 ElimStorePlain]: Start of recursive call 1: 2 dim-0 vars, 2 dim-1 vars, End of recursive call: and 1 xjuncts. [2018-04-11 20:45:53,498 INFO L202 ElimStorePlain]: Needed 5 recursive calls to eliminate 4 variables, input treesize:24, output treesize:7 [2018-04-11 20:45:53,538 INFO L134 CoverageAnalysis]: Checked inductivity of 14 backedges. 0 proven. 14 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-04-11 20:45:53,557 INFO L320 seRefinementStrategy]: Constructing automaton from 0 perfect and 2 imperfect interpolant sequences. [2018-04-11 20:45:53,557 INFO L335 seRefinementStrategy]: Number of different interpolants: perfect sequences [] imperfect sequences [22, 22] total 42 [2018-04-11 20:45:53,558 INFO L442 AbstractCegarLoop]: Interpolant automaton has 43 states [2018-04-11 20:45:53,558 INFO L132 InterpolantAutomaton]: Constructing interpolant automaton starting with 43 interpolants. [2018-04-11 20:45:53,558 INFO L133 InterpolantAutomaton]: CoverageRelationStatistics Valid=122, Invalid=1684, Unknown=0, NotChecked=0, Total=1806 [2018-04-11 20:45:53,558 INFO L87 Difference]: Start difference. First operand 126 states and 134 transitions. Second operand 43 states. [2018-04-11 20:45:55,790 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-04-11 20:45:55,791 INFO L93 Difference]: Finished difference Result 190 states and 201 transitions. [2018-04-11 20:45:55,791 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 37 states. [2018-04-11 20:45:55,791 INFO L78 Accepts]: Start accepts. Automaton has 43 states. Word has length 67 [2018-04-11 20:45:55,791 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-04-11 20:45:55,792 INFO L225 Difference]: With dead ends: 190 [2018-04-11 20:45:55,793 INFO L226 Difference]: Without dead ends: 184 [2018-04-11 20:45:55,794 INFO L567 BasicCegarLoop]: 0 DeclaredPredicates, 166 GetRequests, 91 SyntacticMatches, 1 SemanticMatches, 74 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 753 ImplicationChecksByTransitivity, 2.5s TimeCoverageRelationStatistics Valid=678, Invalid=5022, Unknown=0, NotChecked=0, Total=5700 [2018-04-11 20:45:55,795 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 184 states. [2018-04-11 20:45:55,815 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 184 to 176. [2018-04-11 20:45:55,815 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 176 states. [2018-04-11 20:45:55,816 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 176 states to 176 states and 186 transitions. [2018-04-11 20:45:55,816 INFO L78 Accepts]: Start accepts. Automaton has 176 states and 186 transitions. Word has length 67 [2018-04-11 20:45:55,817 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-04-11 20:45:55,817 INFO L459 AbstractCegarLoop]: Abstraction has 176 states and 186 transitions. [2018-04-11 20:45:55,817 INFO L460 AbstractCegarLoop]: Interpolant automaton has 43 states. [2018-04-11 20:45:55,817 INFO L276 IsEmpty]: Start isEmpty. Operand 176 states and 186 transitions. [2018-04-11 20:45:55,818 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 71 [2018-04-11 20:45:55,818 INFO L347 BasicCegarLoop]: Found error trace [2018-04-11 20:45:55,818 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] [2018-04-11 20:45:55,818 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]=== [2018-04-11 20:45:55,818 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 [2018-04-11 20:45:55,825 INFO L68 tionRefinementEngine]: Using refinement strategy FixedRefinementStrategy [2018-04-11 20:45:55,851 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-04-11 20:45:55,854 INFO L270 TraceCheckSpWp]: Computing forward predicates... [2018-04-11 20:45:55,860 INFO L477 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 0 select indices, 0 select index equivalence classes, 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 [2018-04-11 20:45:55,860 INFO L267 ElimStorePlain]: Start of recursive call 2: End of recursive call: and 1 xjuncts. [2018-04-11 20:45:55,862 INFO L267 ElimStorePlain]: Start of recursive call 1: 1 dim-1 vars, End of recursive call: and 1 xjuncts. [2018-04-11 20:45:55,862 INFO L202 ElimStorePlain]: Needed 2 recursive calls to eliminate 1 variables, input treesize:6, output treesize:5 [2018-04-11 20:45:55,875 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 [2018-04-11 20:45:55,875 INFO L267 ElimStorePlain]: Start of recursive call 2: End of recursive call: and 1 xjuncts. [2018-04-11 20:45:55,882 INFO L700 Elim1Store]: detected not equals via solver [2018-04-11 20:45:55,883 INFO L700 Elim1Store]: detected not equals via solver [2018-04-11 20:45:55,883 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 [2018-04-11 20:45:55,884 INFO L267 ElimStorePlain]: Start of recursive call 3: End of recursive call: and 1 xjuncts. [2018-04-11 20:45:55,902 INFO L267 ElimStorePlain]: Start of recursive call 1: 2 dim-1 vars, End of recursive call: and 1 xjuncts. [2018-04-11 20:45:55,903 INFO L202 ElimStorePlain]: Needed 3 recursive calls to eliminate 2 variables, input treesize:20, output treesize:13 [2018-04-11 20:45:55,919 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 [2018-04-11 20:45:55,921 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 [2018-04-11 20:45:55,921 INFO L267 ElimStorePlain]: Start of recursive call 3: End of recursive call: and 1 xjuncts. [2018-04-11 20:45:55,922 INFO L267 ElimStorePlain]: Start of recursive call 2: 1 dim-1 vars, End of recursive call: and 1 xjuncts. [2018-04-11 20:45:55,925 INFO L267 ElimStorePlain]: Start of recursive call 1: 1 dim-2 vars, End of recursive call: and 1 xjuncts. [2018-04-11 20:45:55,925 INFO L202 ElimStorePlain]: Needed 3 recursive calls to eliminate 1 variables, input treesize:20, output treesize:16 [2018-04-11 20:45:56,035 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 [2018-04-11 20:45:56,037 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 [2018-04-11 20:45:56,037 INFO L267 ElimStorePlain]: Start of recursive call 3: End of recursive call: and 1 xjuncts. [2018-04-11 20:45:56,041 INFO L267 ElimStorePlain]: Start of recursive call 2: 1 dim-1 vars, End of recursive call: and 1 xjuncts. [2018-04-11 20:45:56,046 INFO L267 ElimStorePlain]: Start of recursive call 1: 3 dim-0 vars, 1 dim-2 vars, End of recursive call: and 1 xjuncts. [2018-04-11 20:45:56,046 INFO L202 ElimStorePlain]: Needed 3 recursive calls to eliminate 4 variables, input treesize:30, output treesize:15 [2018-04-11 20:45:56,101 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 [2018-04-11 20:45:56,107 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 [2018-04-11 20:45:56,107 INFO L267 ElimStorePlain]: Start of recursive call 3: End of recursive call: and 2 xjuncts. [2018-04-11 20:45:56,110 INFO L267 ElimStorePlain]: Start of recursive call 2: 1 dim-1 vars, End of recursive call: and 2 xjuncts. [2018-04-11 20:45:56,115 INFO L267 ElimStorePlain]: Start of recursive call 1: 1 dim-2 vars, End of recursive call: and 2 xjuncts. [2018-04-11 20:45:56,115 INFO L202 ElimStorePlain]: Needed 3 recursive calls to eliminate 1 variables, input treesize:29, output treesize:32 [2018-04-11 20:45:56,190 INFO L134 CoverageAnalysis]: Checked inductivity of 23 backedges. 0 proven. 23 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-04-11 20:45:56,190 INFO L314 TraceCheckSpWp]: Computing backward predicates... [2018-04-11 20:45:57,475 INFO L477 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 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 [2018-04-11 20:45:57,489 INFO L477 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 12 treesize of output 11 [2018-04-11 20:45:57,489 INFO L267 ElimStorePlain]: Start of recursive call 3: End of recursive call: and 1 xjuncts. [2018-04-11 20:45:57,502 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 [2018-04-11 20:45:57,504 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 [2018-04-11 20:45:57,504 INFO L267 ElimStorePlain]: Start of recursive call 5: End of recursive call: and 1 xjuncts. [2018-04-11 20:45:57,507 INFO L267 ElimStorePlain]: Start of recursive call 4: 1 dim-1 vars, End of recursive call: and 1 xjuncts. [2018-04-11 20:45:57,509 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 [2018-04-11 20:45:57,510 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 [2018-04-11 20:45:57,511 INFO L267 ElimStorePlain]: Start of recursive call 7: End of recursive call: and 1 xjuncts. [2018-04-11 20:45:57,513 INFO L267 ElimStorePlain]: Start of recursive call 6: 1 dim-1 vars, End of recursive call: and 1 xjuncts. [2018-04-11 20:45:57,523 INFO L267 ElimStorePlain]: Start of recursive call 2: 1 dim-1 vars, 1 dim-2 vars, End of recursive call: and 4 xjuncts. [2018-04-11 20:45:57,541 INFO L267 ElimStorePlain]: Start of recursive call 1: 3 dim-0 vars, 1 dim-2 vars, End of recursive call: and 4 xjuncts. [2018-04-11 20:45:57,542 INFO L202 ElimStorePlain]: Needed 7 recursive calls to eliminate 4 variables, input treesize:55, output treesize:84 [2018-04-11 20:45:57,696 INFO L134 CoverageAnalysis]: Checked inductivity of 23 backedges. 0 proven. 23 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-04-11 20:45:57,715 INFO L320 seRefinementStrategy]: Constructing automaton from 0 perfect and 2 imperfect interpolant sequences. [2018-04-11 20:45:57,716 INFO L335 seRefinementStrategy]: Number of different interpolants: perfect sequences [] imperfect sequences [20, 20] total 39 [2018-04-11 20:45:57,716 INFO L442 AbstractCegarLoop]: Interpolant automaton has 40 states [2018-04-11 20:45:57,716 INFO L132 InterpolantAutomaton]: Constructing interpolant automaton starting with 40 interpolants. [2018-04-11 20:45:57,717 INFO L133 InterpolantAutomaton]: CoverageRelationStatistics Valid=114, Invalid=1446, Unknown=0, NotChecked=0, Total=1560 [2018-04-11 20:45:57,717 INFO L87 Difference]: Start difference. First operand 176 states and 186 transitions. Second operand 40 states. [2018-04-11 20:45:59,155 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-04-11 20:45:59,155 INFO L93 Difference]: Finished difference Result 177 states and 186 transitions. [2018-04-11 20:45:59,155 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 28 states. [2018-04-11 20:45:59,156 INFO L78 Accepts]: Start accepts. Automaton has 40 states. Word has length 70 [2018-04-11 20:45:59,156 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-04-11 20:45:59,157 INFO L225 Difference]: With dead ends: 177 [2018-04-11 20:45:59,157 INFO L226 Difference]: Without dead ends: 176 [2018-04-11 20:45:59,158 INFO L567 BasicCegarLoop]: 0 DeclaredPredicates, 160 GetRequests, 101 SyntacticMatches, 0 SemanticMatches, 59 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 549 ImplicationChecksByTransitivity, 2.5s TimeCoverageRelationStatistics Valid=386, Invalid=3274, Unknown=0, NotChecked=0, Total=3660 [2018-04-11 20:45:59,158 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 176 states. [2018-04-11 20:45:59,177 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 176 to 176. [2018-04-11 20:45:59,177 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 176 states. [2018-04-11 20:45:59,178 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 176 states to 176 states and 185 transitions. [2018-04-11 20:45:59,178 INFO L78 Accepts]: Start accepts. Automaton has 176 states and 185 transitions. Word has length 70 [2018-04-11 20:45:59,179 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-04-11 20:45:59,179 INFO L459 AbstractCegarLoop]: Abstraction has 176 states and 185 transitions. [2018-04-11 20:45:59,179 INFO L460 AbstractCegarLoop]: Interpolant automaton has 40 states. [2018-04-11 20:45:59,179 INFO L276 IsEmpty]: Start isEmpty. Operand 176 states and 185 transitions. [2018-04-11 20:45:59,179 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 75 [2018-04-11 20:45:59,179 INFO L347 BasicCegarLoop]: Found error trace [2018-04-11 20:45:59,180 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] [2018-04-11 20:45:59,180 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]=== [2018-04-11 20:45:59,180 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 [2018-04-11 20:45:59,186 INFO L68 tionRefinementEngine]: Using refinement strategy FixedRefinementStrategy [2018-04-11 20:45:59,211 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-04-11 20:45:59,215 INFO L270 TraceCheckSpWp]: Computing forward predicates... [2018-04-11 20:45:59,232 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 [2018-04-11 20:45:59,232 INFO L267 ElimStorePlain]: Start of recursive call 2: End of recursive call: and 1 xjuncts. [2018-04-11 20:45:59,240 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 [2018-04-11 20:45:59,240 INFO L267 ElimStorePlain]: Start of recursive call 3: End of recursive call: and 1 xjuncts. [2018-04-11 20:45:59,245 INFO L267 ElimStorePlain]: Start of recursive call 1: 1 dim-0 vars, 2 dim-1 vars, End of recursive call: and 1 xjuncts. [2018-04-11 20:45:59,245 INFO L202 ElimStorePlain]: Needed 3 recursive calls to eliminate 3 variables, input treesize:21, output treesize:16 [2018-04-11 20:45:59,261 INFO L700 Elim1Store]: detected not equals via solver [2018-04-11 20:45:59,262 INFO L700 Elim1Store]: detected not equals via solver [2018-04-11 20:45:59,263 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 [2018-04-11 20:45:59,263 INFO L267 ElimStorePlain]: Start of recursive call 2: End of recursive call: and 1 xjuncts. [2018-04-11 20:45:59,274 INFO L700 Elim1Store]: detected not equals via solver [2018-04-11 20:45:59,275 INFO L700 Elim1Store]: detected not equals via solver [2018-04-11 20:45:59,275 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 [2018-04-11 20:45:59,275 INFO L267 ElimStorePlain]: Start of recursive call 3: End of recursive call: and 1 xjuncts. [2018-04-11 20:45:59,281 INFO L267 ElimStorePlain]: Start of recursive call 1: 2 dim-1 vars, End of recursive call: and 1 xjuncts. [2018-04-11 20:45:59,282 INFO L202 ElimStorePlain]: Needed 3 recursive calls to eliminate 2 variables, input treesize:30, output treesize:19 [2018-04-11 20:45:59,311 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 [2018-04-11 20:45:59,313 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 [2018-04-11 20:45:59,313 INFO L267 ElimStorePlain]: Start of recursive call 3: End of recursive call: and 1 xjuncts. [2018-04-11 20:45:59,314 INFO L267 ElimStorePlain]: Start of recursive call 2: 1 dim-1 vars, End of recursive call: and 1 xjuncts. [2018-04-11 20:45:59,318 INFO L267 ElimStorePlain]: Start of recursive call 1: 1 dim-2 vars, End of recursive call: and 1 xjuncts. [2018-04-11 20:45:59,319 INFO L202 ElimStorePlain]: Needed 3 recursive calls to eliminate 1 variables, input treesize:28, output treesize:24 [2018-04-11 20:45:59,582 INFO L700 Elim1Store]: detected not equals via solver [2018-04-11 20:45:59,585 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 [2018-04-11 20:45:59,587 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 [2018-04-11 20:45:59,587 INFO L267 ElimStorePlain]: Start of recursive call 3: End of recursive call: and 1 xjuncts. [2018-04-11 20:45:59,591 INFO L267 ElimStorePlain]: Start of recursive call 2: 1 dim-1 vars, End of recursive call: and 1 xjuncts. [2018-04-11 20:45:59,600 INFO L267 ElimStorePlain]: Start of recursive call 1: 1 dim-0 vars, 1 dim-2 vars, End of recursive call: and 1 xjuncts. [2018-04-11 20:45:59,600 INFO L202 ElimStorePlain]: Needed 3 recursive calls to eliminate 2 variables, input treesize:41, output treesize:30 [2018-04-11 20:45:59,715 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 [2018-04-11 20:45:59,725 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 [2018-04-11 20:45:59,725 INFO L267 ElimStorePlain]: Start of recursive call 3: End of recursive call: and 2 xjuncts. [2018-04-11 20:45:59,730 INFO L267 ElimStorePlain]: Start of recursive call 2: 1 dim-1 vars, End of recursive call: and 2 xjuncts. [2018-04-11 20:45:59,740 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. [2018-04-11 20:45:59,741 INFO L202 ElimStorePlain]: Needed 3 recursive calls to eliminate 3 variables, input treesize:44, output treesize:51 [2018-04-11 20:45:59,901 INFO L134 CoverageAnalysis]: Checked inductivity of 17 backedges. 0 proven. 17 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-04-11 20:45:59,901 INFO L314 TraceCheckSpWp]: Computing backward predicates... [2018-04-11 20:46:02,020 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 [2018-04-11 20:46:02,033 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 [2018-04-11 20:46:02,033 INFO L267 ElimStorePlain]: Start of recursive call 3: End of recursive call: and 1 xjuncts. [2018-04-11 20:46:02,052 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 [2018-04-11 20:46:02,054 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 [2018-04-11 20:46:02,055 INFO L267 ElimStorePlain]: Start of recursive call 5: End of recursive call: and 1 xjuncts. [2018-04-11 20:46:02,057 INFO L267 ElimStorePlain]: Start of recursive call 4: 1 dim-1 vars, End of recursive call: and 1 xjuncts. [2018-04-11 20:46:02,058 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 [2018-04-11 20:46:02,060 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 [2018-04-11 20:46:02,060 INFO L267 ElimStorePlain]: Start of recursive call 7: End of recursive call: and 1 xjuncts. [2018-04-11 20:46:02,063 INFO L267 ElimStorePlain]: Start of recursive call 6: 1 dim-1 vars, End of recursive call: and 1 xjuncts. [2018-04-11 20:46:02,073 INFO L267 ElimStorePlain]: Start of recursive call 2: 1 dim-1 vars, 1 dim-2 vars, End of recursive call: and 4 xjuncts. [2018-04-11 20:46:02,096 INFO L267 ElimStorePlain]: Start of recursive call 1: 3 dim-0 vars, 1 dim-2 vars, End of recursive call: and 6 xjuncts. [2018-04-11 20:46:02,096 INFO L202 ElimStorePlain]: Needed 7 recursive calls to eliminate 4 variables, input treesize:65, output treesize:209 [2018-04-11 20:46:02,430 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 [2018-04-11 20:46:02,430 INFO L267 ElimStorePlain]: Start of recursive call 2: End of recursive call: and 1 xjuncts. [2018-04-11 20:46:02,435 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 [2018-04-11 20:46:02,443 INFO L477 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 1 select indices, 1 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 12 treesize of output 3 [2018-04-11 20:46:02,443 INFO L267 ElimStorePlain]: Start of recursive call 4: End of recursive call: and 1 xjuncts. [2018-04-11 20:46:02,444 WARN L307 Elim1Store]: Array PQE input equivalent to true [2018-04-11 20:46:02,444 INFO L267 ElimStorePlain]: Start of recursive call 5: End of recursive call: and 1 xjuncts. [2018-04-11 20:46:02,446 INFO L267 ElimStorePlain]: Start of recursive call 3: 1 dim-1 vars, End of recursive call: and 1 xjuncts. [2018-04-11 20:46:02,449 INFO L267 ElimStorePlain]: Start of recursive call 1: 2 dim-0 vars, 2 dim-1 vars, End of recursive call: and 1 xjuncts. [2018-04-11 20:46:02,449 INFO L202 ElimStorePlain]: Needed 5 recursive calls to eliminate 4 variables, input treesize:24, output treesize:7 [2018-04-11 20:46:02,514 INFO L134 CoverageAnalysis]: Checked inductivity of 17 backedges. 0 proven. 17 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-04-11 20:46:02,533 INFO L320 seRefinementStrategy]: Constructing automaton from 0 perfect and 2 imperfect interpolant sequences. [2018-04-11 20:46:02,533 INFO L335 seRefinementStrategy]: Number of different interpolants: perfect sequences [] imperfect sequences [26, 27] total 51 [2018-04-11 20:46:02,533 INFO L442 AbstractCegarLoop]: Interpolant automaton has 52 states [2018-04-11 20:46:02,533 INFO L132 InterpolantAutomaton]: Constructing interpolant automaton starting with 52 interpolants. [2018-04-11 20:46:02,534 INFO L133 InterpolantAutomaton]: CoverageRelationStatistics Valid=147, Invalid=2505, Unknown=0, NotChecked=0, Total=2652 [2018-04-11 20:46:02,534 INFO L87 Difference]: Start difference. First operand 176 states and 185 transitions. Second operand 52 states. [2018-04-11 20:46:04,167 WARN L151 SmtUtils]: Spent 170ms on a formula simplification. DAG size of input: 97 DAG size of output 76 [2018-04-11 20:46:04,672 WARN L151 SmtUtils]: Spent 258ms on a formula simplification. DAG size of input: 103 DAG size of output 76 [2018-04-11 20:46:05,045 WARN L151 SmtUtils]: Spent 215ms on a formula simplification. DAG size of input: 107 DAG size of output 80 [2018-04-11 20:46:06,884 WARN L151 SmtUtils]: Spent 1239ms on a formula simplification. DAG size of input: 125 DAG size of output 98 [2018-04-11 20:46:07,901 WARN L151 SmtUtils]: Spent 619ms on a formula simplification. DAG size of input: 109 DAG size of output 89 [2018-04-11 20:46:09,429 WARN L151 SmtUtils]: Spent 930ms on a formula simplification. DAG size of input: 118 DAG size of output 101 [2018-04-11 20:46:10,272 WARN L148 SmtUtils]: Spent 187ms on a formula simplification that was a NOOP. DAG size: 82 [2018-04-11 20:46:11,911 WARN L148 SmtUtils]: Spent 189ms on a formula simplification that was a NOOP. DAG size: 79 [2018-04-11 20:46:14,775 WARN L151 SmtUtils]: Spent 204ms on a formula simplification. DAG size of input: 89 DAG size of output 86 [2018-04-11 20:46:15,479 WARN L151 SmtUtils]: Spent 187ms on a formula simplification. DAG size of input: 88 DAG size of output 82 [2018-04-11 20:46:16,701 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-04-11 20:46:16,701 INFO L93 Difference]: Finished difference Result 240 states and 252 transitions. [2018-04-11 20:46:16,701 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 63 states. [2018-04-11 20:46:16,701 INFO L78 Accepts]: Start accepts. Automaton has 52 states. Word has length 74 [2018-04-11 20:46:16,701 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-04-11 20:46:16,702 INFO L225 Difference]: With dead ends: 240 [2018-04-11 20:46:16,702 INFO L226 Difference]: Without dead ends: 234 [2018-04-11 20:46:16,704 INFO L567 BasicCegarLoop]: 0 DeclaredPredicates, 205 GetRequests, 96 SyntacticMatches, 1 SemanticMatches, 108 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 2145 ImplicationChecksByTransitivity, 13.6s TimeCoverageRelationStatistics Valid=1201, Invalid=10789, Unknown=0, NotChecked=0, Total=11990 [2018-04-11 20:46:16,705 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 234 states. [2018-04-11 20:46:16,717 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 234 to 211. [2018-04-11 20:46:16,717 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 211 states. [2018-04-11 20:46:16,718 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 211 states to 211 states and 221 transitions. [2018-04-11 20:46:16,718 INFO L78 Accepts]: Start accepts. Automaton has 211 states and 221 transitions. Word has length 74 [2018-04-11 20:46:16,719 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-04-11 20:46:16,719 INFO L459 AbstractCegarLoop]: Abstraction has 211 states and 221 transitions. [2018-04-11 20:46:16,719 INFO L460 AbstractCegarLoop]: Interpolant automaton has 52 states. [2018-04-11 20:46:16,719 INFO L276 IsEmpty]: Start isEmpty. Operand 211 states and 221 transitions. [2018-04-11 20:46:16,719 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 78 [2018-04-11 20:46:16,719 INFO L347 BasicCegarLoop]: Found error trace [2018-04-11 20:46:16,719 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] [2018-04-11 20:46:16,719 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]=== [2018-04-11 20:46:16,720 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 [2018-04-11 20:46:16,730 INFO L68 tionRefinementEngine]: Using refinement strategy FixedRefinementStrategy [2018-04-11 20:46:16,758 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-04-11 20:46:16,762 INFO L270 TraceCheckSpWp]: Computing forward predicates... [2018-04-11 20:46:16,765 INFO L477 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 6 treesize of output 5 [2018-04-11 20:46:16,765 INFO L267 ElimStorePlain]: Start of recursive call 2: End of recursive call: and 1 xjuncts. [2018-04-11 20:46:16,766 INFO L267 ElimStorePlain]: Start of recursive call 1: 1 dim-1 vars, End of recursive call: and 1 xjuncts. [2018-04-11 20:46:16,766 INFO L202 ElimStorePlain]: Needed 2 recursive calls to eliminate 1 variables, input treesize:6, output treesize:5 [2018-04-11 20:46:16,796 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 [2018-04-11 20:46:16,797 INFO L267 ElimStorePlain]: Start of recursive call 2: End of recursive call: and 1 xjuncts. [2018-04-11 20:46:16,804 INFO L700 Elim1Store]: detected not equals via solver [2018-04-11 20:46:16,804 INFO L700 Elim1Store]: detected not equals via solver [2018-04-11 20:46:16,805 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 [2018-04-11 20:46:16,805 INFO L267 ElimStorePlain]: Start of recursive call 3: End of recursive call: and 1 xjuncts. [2018-04-11 20:46:16,809 INFO L267 ElimStorePlain]: Start of recursive call 1: 2 dim-1 vars, End of recursive call: and 1 xjuncts. [2018-04-11 20:46:16,810 INFO L202 ElimStorePlain]: Needed 3 recursive calls to eliminate 2 variables, input treesize:20, output treesize:13 [2018-04-11 20:46:16,827 INFO L477 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 15 treesize of output 12 [2018-04-11 20:46:16,828 INFO L477 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 12 treesize of output 11 [2018-04-11 20:46:16,829 INFO L267 ElimStorePlain]: Start of recursive call 3: End of recursive call: and 1 xjuncts. [2018-04-11 20:46:16,830 INFO L267 ElimStorePlain]: Start of recursive call 2: 1 dim-1 vars, End of recursive call: and 1 xjuncts. [2018-04-11 20:46:16,833 INFO L267 ElimStorePlain]: Start of recursive call 1: 1 dim-2 vars, End of recursive call: and 1 xjuncts. [2018-04-11 20:46:16,833 INFO L202 ElimStorePlain]: Needed 3 recursive calls to eliminate 1 variables, input treesize:20, output treesize:16 [2018-04-11 20:46:16,982 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 [2018-04-11 20:46:16,984 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 [2018-04-11 20:46:16,984 INFO L267 ElimStorePlain]: Start of recursive call 3: End of recursive call: and 1 xjuncts. [2018-04-11 20:46:16,989 INFO L267 ElimStorePlain]: Start of recursive call 2: 1 dim-1 vars, End of recursive call: and 1 xjuncts. [2018-04-11 20:46:16,995 INFO L267 ElimStorePlain]: Start of recursive call 1: 3 dim-0 vars, 1 dim-2 vars, End of recursive call: and 1 xjuncts. [2018-04-11 20:46:16,995 INFO L202 ElimStorePlain]: Needed 3 recursive calls to eliminate 4 variables, input treesize:30, output treesize:15 [2018-04-11 20:46:17,058 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 [2018-04-11 20:46:17,063 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 [2018-04-11 20:46:17,064 INFO L267 ElimStorePlain]: Start of recursive call 3: End of recursive call: and 2 xjuncts. [2018-04-11 20:46:17,066 INFO L267 ElimStorePlain]: Start of recursive call 2: 1 dim-1 vars, End of recursive call: and 2 xjuncts. [2018-04-11 20:46:17,071 INFO L267 ElimStorePlain]: Start of recursive call 1: 1 dim-2 vars, End of recursive call: and 2 xjuncts. [2018-04-11 20:46:17,072 INFO L202 ElimStorePlain]: Needed 3 recursive calls to eliminate 1 variables, input treesize:29, output treesize:32 [2018-04-11 20:46:17,152 INFO L134 CoverageAnalysis]: Checked inductivity of 26 backedges. 0 proven. 23 refuted. 0 times theorem prover too weak. 3 trivial. 0 not checked. [2018-04-11 20:46:17,152 INFO L314 TraceCheckSpWp]: Computing backward predicates... [2018-04-11 20:46:18,749 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 39 treesize of output 30 [2018-04-11 20:46:18,763 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 [2018-04-11 20:46:18,763 INFO L267 ElimStorePlain]: Start of recursive call 3: End of recursive call: and 1 xjuncts. [2018-04-11 20:46:18,777 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 [2018-04-11 20:46:18,779 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 [2018-04-11 20:46:18,779 INFO L267 ElimStorePlain]: Start of recursive call 5: End of recursive call: and 1 xjuncts. [2018-04-11 20:46:18,782 INFO L267 ElimStorePlain]: Start of recursive call 4: 1 dim-1 vars, End of recursive call: and 1 xjuncts. [2018-04-11 20:46:18,784 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 [2018-04-11 20:46:18,787 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 [2018-04-11 20:46:18,788 INFO L267 ElimStorePlain]: Start of recursive call 7: End of recursive call: and 1 xjuncts. [2018-04-11 20:46:18,790 INFO L267 ElimStorePlain]: Start of recursive call 6: 1 dim-1 vars, End of recursive call: and 1 xjuncts. [2018-04-11 20:46:18,802 INFO L267 ElimStorePlain]: Start of recursive call 2: 1 dim-1 vars, 1 dim-2 vars, End of recursive call: and 4 xjuncts. [2018-04-11 20:46:18,822 INFO L267 ElimStorePlain]: Start of recursive call 1: 3 dim-0 vars, 1 dim-2 vars, End of recursive call: and 4 xjuncts. [2018-04-11 20:46:18,823 INFO L202 ElimStorePlain]: Needed 7 recursive calls to eliminate 4 variables, input treesize:57, output treesize:84 [2018-04-11 20:46:18,995 INFO L134 CoverageAnalysis]: Checked inductivity of 26 backedges. 0 proven. 23 refuted. 0 times theorem prover too weak. 3 trivial. 0 not checked. [2018-04-11 20:46:19,015 INFO L320 seRefinementStrategy]: Constructing automaton from 0 perfect and 2 imperfect interpolant sequences. [2018-04-11 20:46:19,016 INFO L335 seRefinementStrategy]: Number of different interpolants: perfect sequences [] imperfect sequences [21, 21] total 41 [2018-04-11 20:46:19,016 INFO L442 AbstractCegarLoop]: Interpolant automaton has 42 states [2018-04-11 20:46:19,016 INFO L132 InterpolantAutomaton]: Constructing interpolant automaton starting with 42 interpolants. [2018-04-11 20:46:19,017 INFO L133 InterpolantAutomaton]: CoverageRelationStatistics Valid=119, Invalid=1603, Unknown=0, NotChecked=0, Total=1722 [2018-04-11 20:46:19,017 INFO L87 Difference]: Start difference. First operand 211 states and 221 transitions. Second operand 42 states. [2018-04-11 20:46:20,814 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-04-11 20:46:20,814 INFO L93 Difference]: Finished difference Result 240 states and 249 transitions. [2018-04-11 20:46:20,814 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 39 states. [2018-04-11 20:46:20,814 INFO L78 Accepts]: Start accepts. Automaton has 42 states. Word has length 77 [2018-04-11 20:46:20,814 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-04-11 20:46:20,815 INFO L225 Difference]: With dead ends: 240 [2018-04-11 20:46:20,815 INFO L226 Difference]: Without dead ends: 239 [2018-04-11 20:46:20,816 INFO L567 BasicCegarLoop]: 0 DeclaredPredicates, 182 GetRequests, 113 SyntacticMatches, 0 SemanticMatches, 69 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 775 ImplicationChecksByTransitivity, 3.2s TimeCoverageRelationStatistics Valid=538, Invalid=4432, Unknown=0, NotChecked=0, Total=4970 [2018-04-11 20:46:20,816 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 239 states. [2018-04-11 20:46:20,828 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 239 to 192. [2018-04-11 20:46:20,828 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 192 states. [2018-04-11 20:46:20,828 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 192 states to 192 states and 203 transitions. [2018-04-11 20:46:20,828 INFO L78 Accepts]: Start accepts. Automaton has 192 states and 203 transitions. Word has length 77 [2018-04-11 20:46:20,829 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-04-11 20:46:20,829 INFO L459 AbstractCegarLoop]: Abstraction has 192 states and 203 transitions. [2018-04-11 20:46:20,829 INFO L460 AbstractCegarLoop]: Interpolant automaton has 42 states. [2018-04-11 20:46:20,829 INFO L276 IsEmpty]: Start isEmpty. Operand 192 states and 203 transitions. [2018-04-11 20:46:20,829 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 81 [2018-04-11 20:46:20,829 INFO L347 BasicCegarLoop]: Found error trace [2018-04-11 20:46:20,829 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] [2018-04-11 20:46:20,829 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]=== [2018-04-11 20:46:20,830 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 [2018-04-11 20:46:20,835 INFO L68 tionRefinementEngine]: Using refinement strategy FixedRefinementStrategy [2018-04-11 20:46:20,860 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-04-11 20:46:20,863 INFO L270 TraceCheckSpWp]: Computing forward predicates... [2018-04-11 20:46:20,881 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 [2018-04-11 20:46:20,881 INFO L267 ElimStorePlain]: Start of recursive call 2: End of recursive call: and 1 xjuncts. [2018-04-11 20:46:20,889 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 [2018-04-11 20:46:20,889 INFO L267 ElimStorePlain]: Start of recursive call 3: End of recursive call: and 1 xjuncts. [2018-04-11 20:46:20,895 INFO L267 ElimStorePlain]: Start of recursive call 1: 2 dim-1 vars, End of recursive call: and 1 xjuncts. [2018-04-11 20:46:20,895 INFO L202 ElimStorePlain]: Needed 3 recursive calls to eliminate 2 variables, input treesize:27, output treesize:25 [2018-04-11 20:46:20,919 INFO L700 Elim1Store]: detected not equals via solver [2018-04-11 20:46:20,919 INFO L700 Elim1Store]: detected not equals via solver [2018-04-11 20:46:20,920 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 [2018-04-11 20:46:20,920 INFO L267 ElimStorePlain]: Start of recursive call 2: End of recursive call: and 1 xjuncts. [2018-04-11 20:46:20,931 INFO L700 Elim1Store]: detected not equals via solver [2018-04-11 20:46:20,931 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 [2018-04-11 20:46:20,931 INFO L267 ElimStorePlain]: Start of recursive call 3: End of recursive call: and 1 xjuncts. [2018-04-11 20:46:20,941 INFO L267 ElimStorePlain]: Start of recursive call 1: 2 dim-1 vars, End of recursive call: and 1 xjuncts. [2018-04-11 20:46:20,941 INFO L202 ElimStorePlain]: Needed 3 recursive calls to eliminate 2 variables, input treesize:39, output treesize:28 [2018-04-11 20:46:20,970 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 [2018-04-11 20:46:20,971 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 [2018-04-11 20:46:20,972 INFO L267 ElimStorePlain]: Start of recursive call 3: End of recursive call: and 1 xjuncts. [2018-04-11 20:46:20,973 INFO L267 ElimStorePlain]: Start of recursive call 2: 1 dim-1 vars, End of recursive call: and 1 xjuncts. [2018-04-11 20:46:20,981 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. [2018-04-11 20:46:20,982 INFO L202 ElimStorePlain]: Needed 3 recursive calls to eliminate 2 variables, input treesize:44, output treesize:40 [2018-04-11 20:46:21,000 INFO L700 Elim1Store]: detected not equals via solver [2018-04-11 20:46:21,005 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 [2018-04-11 20:46:21,007 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 [2018-04-11 20:46:21,007 INFO L267 ElimStorePlain]: Start of recursive call 3: End of recursive call: and 1 xjuncts. [2018-04-11 20:46:21,012 INFO L267 ElimStorePlain]: Start of recursive call 2: 1 dim-1 vars, End of recursive call: and 1 xjuncts. [2018-04-11 20:46:21,022 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. [2018-04-11 20:46:21,022 INFO L202 ElimStorePlain]: Needed 3 recursive calls to eliminate 2 variables, input treesize:55, output treesize:51 [2018-04-11 20:46:22,206 INFO L700 Elim1Store]: detected not equals via solver [2018-04-11 20:46:22,208 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 [2018-04-11 20:46:22,215 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 [2018-04-11 20:46:22,216 INFO L267 ElimStorePlain]: Start of recursive call 3: End of recursive call: and 2 xjuncts. [2018-04-11 20:46:22,229 INFO L700 Elim1Store]: detected not equals via solver [2018-04-11 20:46:22,230 INFO L700 Elim1Store]: detected not equals via solver [2018-04-11 20:46:22,230 INFO L700 Elim1Store]: detected not equals via solver [2018-04-11 20:46:22,233 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 [2018-04-11 20:46:22,234 INFO L267 ElimStorePlain]: Start of recursive call 4: End of recursive call: and 1 xjuncts. [2018-04-11 20:46:22,245 INFO L267 ElimStorePlain]: Start of recursive call 2: 2 dim-1 vars, End of recursive call: and 2 xjuncts. [2018-04-11 20:46:22,280 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. [2018-04-11 20:46:22,280 INFO L202 ElimStorePlain]: Needed 4 recursive calls to eliminate 6 variables, input treesize:102, output treesize:244 [2018-04-11 20:46:22,645 INFO L134 CoverageAnalysis]: Checked inductivity of 54 backedges. 0 proven. 54 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-04-11 20:46:22,645 INFO L314 TraceCheckSpWp]: Computing backward predicates... [2018-04-11 20:46:26,739 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 [2018-04-11 20:46:26,792 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 [2018-04-11 20:46:26,792 INFO L267 ElimStorePlain]: Start of recursive call 3: End of recursive call: and 1 xjuncts. [2018-04-11 20:46:26,817 INFO L477 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 0 stores, 2 select indices, 2 select index equivalence classes, 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 [2018-04-11 20:46:26,861 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 [2018-04-11 20:46:26,862 INFO L267 ElimStorePlain]: Start of recursive call 5: End of recursive call: and 1 xjuncts. [2018-04-11 20:46:26,883 INFO L682 Elim1Store]: detected equality via solver [2018-04-11 20:46:26,883 INFO L682 Elim1Store]: detected equality via solver [2018-04-11 20:46:26,883 INFO L682 Elim1Store]: detected equality via solver [2018-04-11 20:46:26,886 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 [2018-04-11 20:46:26,886 INFO L267 ElimStorePlain]: Start of recursive call 6: End of recursive call: and 1 xjuncts. [2018-04-11 20:46:26,912 INFO L682 Elim1Store]: detected equality via solver [2018-04-11 20:46:26,913 INFO L682 Elim1Store]: detected equality via solver [2018-04-11 20:46:26,913 INFO L682 Elim1Store]: detected equality via solver [2018-04-11 20:46:26,928 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 [2018-04-11 20:46:26,930 INFO L267 ElimStorePlain]: Start of recursive call 7: End of recursive call: and 8 xjuncts. [2018-04-11 20:46:26,967 INFO L267 ElimStorePlain]: Start of recursive call 4: 3 dim-1 vars, End of recursive call: and 2 xjuncts. [2018-04-11 20:46:26,998 INFO L267 ElimStorePlain]: Start of recursive call 2: 1 dim-1 vars, 1 dim-2 vars, End of recursive call: and 4 xjuncts. [2018-04-11 20:46:27,049 INFO L267 ElimStorePlain]: Start of recursive call 1: 2 dim-0 vars, 1 dim-2 vars, End of recursive call: and 2 xjuncts. [2018-04-11 20:46:27,049 INFO L202 ElimStorePlain]: Needed 7 recursive calls to eliminate 3 variables, input treesize:191, output treesize:571 [2018-04-11 20:46:27,434 WARN L151 SmtUtils]: Spent 228ms on a formula simplification. DAG size of input: 94 DAG size of output 65 [2018-04-11 20:46:27,848 WARN L151 SmtUtils]: Spent 257ms on a formula simplification. DAG size of input: 89 DAG size of output 74 [2018-04-11 20:46:29,083 WARN L151 SmtUtils]: Spent 975ms on a formula simplification. DAG size of input: 168 DAG size of output 157 [2018-04-11 20:46:29,769 WARN L148 SmtUtils]: Spent 436ms on a formula simplification that was a NOOP. DAG size: 177 [2018-04-11 20:46:29,917 WARN L151 SmtUtils]: Spent 134ms on a formula simplification. DAG size of input: 229 DAG size of output 117 [2018-04-11 20:46:29,919 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 [2018-04-11 20:46:29,936 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 [2018-04-11 20:46:29,936 INFO L267 ElimStorePlain]: Start of recursive call 3: End of recursive call: and 1 xjuncts. [2018-04-11 20:46:29,941 INFO L267 ElimStorePlain]: Start of recursive call 2: 1 dim-1 vars, End of recursive call: and 1 xjuncts. [2018-04-11 20:46:29,994 INFO L477 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 1 select indices, 1 select index equivalence classes, 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 [2018-04-11 20:46:29,994 INFO L267 ElimStorePlain]: Start of recursive call 4: End of recursive call: and 1 xjuncts. [2018-04-11 20:46:30,045 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 [2018-04-11 20:46:30,061 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 [2018-04-11 20:46:30,062 INFO L267 ElimStorePlain]: Start of recursive call 6: End of recursive call: and 1 xjuncts. [2018-04-11 20:46:30,067 INFO L267 ElimStorePlain]: Start of recursive call 5: 1 dim-1 vars, End of recursive call: and 1 xjuncts. [2018-04-11 20:46:30,116 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 [2018-04-11 20:46:30,117 INFO L267 ElimStorePlain]: Start of recursive call 7: End of recursive call: and 1 xjuncts. [2018-04-11 20:46:30,165 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 [2018-04-11 20:46:30,186 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 [2018-04-11 20:46:30,186 INFO L267 ElimStorePlain]: Start of recursive call 9: End of recursive call: and 1 xjuncts. [2018-04-11 20:46:30,191 INFO L267 ElimStorePlain]: Start of recursive call 8: 1 dim-1 vars, End of recursive call: and 1 xjuncts. [2018-04-11 20:46:30,238 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 [2018-04-11 20:46:30,238 INFO L267 ElimStorePlain]: Start of recursive call 10: End of recursive call: and 1 xjuncts. [2018-04-11 20:46:30,283 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 [2018-04-11 20:46:30,300 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 [2018-04-11 20:46:30,300 INFO L267 ElimStorePlain]: Start of recursive call 12: End of recursive call: and 1 xjuncts. [2018-04-11 20:46:30,305 INFO L267 ElimStorePlain]: Start of recursive call 11: 1 dim-1 vars, End of recursive call: and 1 xjuncts. [2018-04-11 20:46:30,349 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 [2018-04-11 20:46:30,350 INFO L267 ElimStorePlain]: Start of recursive call 13: End of recursive call: and 1 xjuncts. [2018-04-11 20:46:30,393 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 [2018-04-11 20:46:30,393 INFO L267 ElimStorePlain]: Start of recursive call 14: End of recursive call: and 1 xjuncts. [2018-04-11 20:46:30,435 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 19 treesize of output 13 [2018-04-11 20:46:30,435 INFO L267 ElimStorePlain]: Start of recursive call 15: End of recursive call: and 1 xjuncts. [2018-04-11 20:46:30,475 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 [2018-04-11 20:46:30,490 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 [2018-04-11 20:46:30,490 INFO L267 ElimStorePlain]: Start of recursive call 17: End of recursive call: and 1 xjuncts. [2018-04-11 20:46:30,494 INFO L267 ElimStorePlain]: Start of recursive call 16: 1 dim-1 vars, End of recursive call: and 1 xjuncts. [2018-04-11 20:46:30,534 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 [2018-04-11 20:46:30,551 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 [2018-04-11 20:46:30,551 INFO L267 ElimStorePlain]: Start of recursive call 19: End of recursive call: and 1 xjuncts. [2018-04-11 20:46:30,556 INFO L267 ElimStorePlain]: Start of recursive call 18: 1 dim-1 vars, End of recursive call: and 1 xjuncts. [2018-04-11 20:46:30,594 INFO L477 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 1 select indices, 1 select index equivalence classes, 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 [2018-04-11 20:46:30,595 INFO L267 ElimStorePlain]: Start of recursive call 20: End of recursive call: and 1 xjuncts. [2018-04-11 20:46:30,631 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 [2018-04-11 20:46:30,645 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 [2018-04-11 20:46:30,646 INFO L267 ElimStorePlain]: Start of recursive call 22: End of recursive call: and 1 xjuncts. [2018-04-11 20:46:30,650 INFO L267 ElimStorePlain]: Start of recursive call 21: 1 dim-1 vars, End of recursive call: and 1 xjuncts. [2018-04-11 20:46:30,685 INFO L267 ElimStorePlain]: Start of recursive call 1: 14 dim-0 vars, 14 dim-1 vars, End of recursive call: and 7 xjuncts. [2018-04-11 20:46:30,685 INFO L202 ElimStorePlain]: Needed 22 recursive calls to eliminate 48 variables, input treesize:527, output treesize:81 [2018-04-11 20:46:30,955 INFO L134 CoverageAnalysis]: Checked inductivity of 54 backedges. 0 proven. 54 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-04-11 20:46:30,975 INFO L320 seRefinementStrategy]: Constructing automaton from 0 perfect and 2 imperfect interpolant sequences. [2018-04-11 20:46:30,975 INFO L335 seRefinementStrategy]: Number of different interpolants: perfect sequences [] imperfect sequences [35, 35] total 68 [2018-04-11 20:46:30,975 INFO L442 AbstractCegarLoop]: Interpolant automaton has 69 states [2018-04-11 20:46:30,976 INFO L132 InterpolantAutomaton]: Constructing interpolant automaton starting with 69 interpolants. [2018-04-11 20:46:30,976 INFO L133 InterpolantAutomaton]: CoverageRelationStatistics Valid=310, Invalid=4382, Unknown=0, NotChecked=0, Total=4692 [2018-04-11 20:46:30,976 INFO L87 Difference]: Start difference. First operand 192 states and 203 transitions. Second operand 69 states. [2018-04-11 20:46:32,558 WARN L151 SmtUtils]: Spent 1261ms on a formula simplification. DAG size of input: 271 DAG size of output 209 [2018-04-11 20:46:34,429 WARN L151 SmtUtils]: Spent 1538ms on a formula simplification. DAG size of input: 268 DAG size of output 205 [2018-04-11 20:46:35,326 WARN L151 SmtUtils]: Spent 454ms on a formula simplification. DAG size of input: 263 DAG size of output 98 [2018-04-11 20:46:40,304 WARN L151 SmtUtils]: Spent 107ms on a formula simplification. DAG size of input: 121 DAG size of output 74 [2018-04-11 20:46:40,611 WARN L148 SmtUtils]: Spent 111ms on a formula simplification that was a NOOP. DAG size: 105 [2018-04-11 20:46:47,010 WARN L151 SmtUtils]: Spent 737ms on a formula simplification. DAG size of input: 84 DAG size of output 81 [2018-04-11 20:46:47,301 WARN L148 SmtUtils]: Spent 132ms on a formula simplification that was a NOOP. DAG size: 107 [2018-04-11 20:46:47,577 WARN L148 SmtUtils]: Spent 106ms on a formula simplification that was a NOOP. DAG size: 105 [2018-04-11 20:46:47,899 WARN L148 SmtUtils]: Spent 136ms on a formula simplification that was a NOOP. DAG size: 120 [2018-04-11 20:46:50,818 WARN L151 SmtUtils]: Spent 337ms on a formula simplification. DAG size of input: 152 DAG size of output 146 [2018-04-11 20:46:51,097 WARN L151 SmtUtils]: Spent 100ms on a formula simplification. DAG size of input: 114 DAG size of output 111 [2018-04-11 20:46:53,165 WARN L151 SmtUtils]: Spent 860ms on a formula simplification. DAG size of input: 91 DAG size of output 88 [2018-04-11 20:46:54,578 WARN L151 SmtUtils]: Spent 130ms on a formula simplification. DAG size of input: 94 DAG size of output 92 [2018-04-11 20:46:55,824 WARN L148 SmtUtils]: Spent 329ms on a formula simplification that was a NOOP. DAG size: 76 [2018-04-11 20:46:57,272 WARN L148 SmtUtils]: Spent 261ms on a formula simplification that was a NOOP. DAG size: 69 [2018-04-11 20:46:57,723 WARN L151 SmtUtils]: Spent 260ms on a formula simplification. DAG size of input: 112 DAG size of output 111 [2018-04-11 20:46:58,294 WARN L151 SmtUtils]: Spent 274ms on a formula simplification. DAG size of input: 114 DAG size of output 113 [2018-04-11 20:46:58,740 WARN L151 SmtUtils]: Spent 211ms on a formula simplification. DAG size of input: 112 DAG size of output 111 [2018-04-11 20:46:59,136 WARN L151 SmtUtils]: Spent 234ms on a formula simplification. DAG size of input: 109 DAG size of output 108 [2018-04-11 20:46:59,725 WARN L151 SmtUtils]: Spent 407ms on a formula simplification. DAG size of input: 131 DAG size of output 130 [2018-04-11 20:47:05,636 WARN L148 SmtUtils]: Spent 661ms on a formula simplification that was a NOOP. DAG size: 125 [2018-04-11 20:47:06,165 WARN L151 SmtUtils]: Spent 326ms on a formula simplification. DAG size of input: 120 DAG size of output 117 [2018-04-11 20:47:06,970 WARN L148 SmtUtils]: Spent 379ms on a formula simplification that was a NOOP. DAG size: 105 [2018-04-11 20:47:09,206 WARN L151 SmtUtils]: Spent 1121ms on a formula simplification. DAG size of input: 111 DAG size of output 110 [2018-04-11 20:47:10,844 WARN L151 SmtUtils]: Spent 1150ms on a formula simplification. DAG size of input: 113 DAG size of output 112 [2018-04-11 20:47:12,573 WARN L151 SmtUtils]: Spent 1045ms on a formula simplification. DAG size of input: 111 DAG size of output 110 [2018-04-11 20:47:13,859 WARN L151 SmtUtils]: Spent 903ms on a formula simplification. DAG size of input: 108 DAG size of output 107 [2018-04-11 20:47:16,295 WARN L151 SmtUtils]: Spent 1351ms on a formula simplification. DAG size of input: 134 DAG size of output 133 [2018-04-11 20:47:18,826 WARN L148 SmtUtils]: Spent 890ms on a formula simplification that was a NOOP. DAG size: 135 [2018-04-11 20:47:20,661 WARN L151 SmtUtils]: Spent 1224ms on a formula simplification. DAG size of input: 119 DAG size of output 116 [2018-04-11 20:47:21,454 WARN L148 SmtUtils]: Spent 295ms on a formula simplification that was a NOOP. DAG size: 111 [2018-04-11 20:47:23,596 WARN L151 SmtUtils]: Spent 899ms on a formula simplification. DAG size of input: 80 DAG size of output 78 [2018-04-11 20:47:24,791 WARN L148 SmtUtils]: Spent 509ms on a formula simplification that was a NOOP. DAG size: 83 [2018-04-11 20:47:27,531 WARN L151 SmtUtils]: Spent 1974ms on a formula simplification. DAG size of input: 149 DAG size of output 135 [2018-04-11 20:47:30,009 WARN L151 SmtUtils]: Spent 1980ms on a formula simplification. DAG size of input: 147 DAG size of output 133 [2018-04-11 20:47:31,664 WARN L151 SmtUtils]: Spent 1112ms on a formula simplification. DAG size of input: 114 DAG size of output 113 [2018-04-11 20:47:34,075 WARN L151 SmtUtils]: Spent 2029ms on a formula simplification. DAG size of input: 172 DAG size of output 161 [2018-04-11 20:47:35,449 WARN L151 SmtUtils]: Spent 884ms on a formula simplification. DAG size of input: 129 DAG size of output 121 [2018-04-11 20:47:36,587 WARN L151 SmtUtils]: Spent 673ms on a formula simplification. DAG size of input: 129 DAG size of output 128 [2018-04-11 20:47:37,916 WARN L151 SmtUtils]: Spent 699ms on a formula simplification. DAG size of input: 103 DAG size of output 92 [2018-04-11 20:47:39,509 WARN L151 SmtUtils]: Spent 1097ms on a formula simplification. DAG size of input: 114 DAG size of output 113 [2018-04-11 20:47:41,805 WARN L151 SmtUtils]: Spent 1720ms on a formula simplification. DAG size of input: 140 DAG size of output 127 [2018-04-11 20:47:43,736 WARN L151 SmtUtils]: Spent 989ms on a formula simplification. DAG size of input: 111 DAG size of output 96 [2018-04-11 20:47:45,544 WARN L151 SmtUtils]: Spent 514ms on a formula simplification. DAG size of input: 103 DAG size of output 87 [2018-04-11 20:47:47,713 WARN L151 SmtUtils]: Spent 1146ms on a formula simplification. DAG size of input: 119 DAG size of output 102 [2018-04-11 20:47:49,666 WARN L151 SmtUtils]: Spent 887ms on a formula simplification. DAG size of input: 105 DAG size of output 92 [2018-04-11 20:47:50,621 WARN L151 SmtUtils]: Spent 516ms on a formula simplification. DAG size of input: 121 DAG size of output 110 [2018-04-11 20:47:51,847 WARN L151 SmtUtils]: Spent 696ms on a formula simplification. DAG size of input: 114 DAG size of output 110 [2018-04-11 20:47:53,991 WARN L151 SmtUtils]: Spent 1130ms on a formula simplification. DAG size of input: 113 DAG size of output 99 [2018-04-11 20:47:55,516 WARN L151 SmtUtils]: Spent 692ms on a formula simplification. DAG size of input: 95 DAG size of output 86 [2018-04-11 20:47:57,890 WARN L151 SmtUtils]: Spent 1135ms on a formula simplification. DAG size of input: 101 DAG size of output 89 [2018-04-11 20:47:59,948 WARN L151 SmtUtils]: Spent 929ms on a formula simplification. DAG size of input: 94 DAG size of output 80 [2018-04-11 20:48:02,112 WARN L151 SmtUtils]: Spent 1102ms on a formula simplification. DAG size of input: 117 DAG size of output 101 [2018-04-11 20:48:03,735 WARN L151 SmtUtils]: Spent 617ms on a formula simplification. DAG size of input: 97 DAG size of output 86 [2018-04-11 20:48:06,036 WARN L151 SmtUtils]: Spent 1357ms on a formula simplification. DAG size of input: 103 DAG size of output 96 [2018-04-11 20:48:07,321 WARN L148 SmtUtils]: Spent 545ms on a formula simplification that was a NOOP. DAG size: 96 [2018-04-11 20:48:09,272 WARN L151 SmtUtils]: Spent 930ms on a formula simplification. DAG size of input: 105 DAG size of output 93 [2018-04-11 20:48:10,570 WARN L148 SmtUtils]: Spent 489ms on a formula simplification that was a NOOP. DAG size: 80 [2018-04-11 20:48:12,639 WARN L151 SmtUtils]: Spent 817ms on a formula simplification. DAG size of input: 82 DAG size of output 80 [2018-04-11 20:48:15,053 WARN L151 SmtUtils]: Spent 1279ms on a formula simplification. DAG size of input: 113 DAG size of output 98 [2018-04-11 20:48:15,989 WARN L148 SmtUtils]: Spent 181ms on a formula simplification that was a NOOP. DAG size: 63 [2018-04-11 20:48:17,990 WARN L151 SmtUtils]: Spent 1190ms on a formula simplification. DAG size of input: 90 DAG size of output 87 [2018-04-11 20:48:20,117 WARN L151 SmtUtils]: Spent 1190ms on a formula simplification. DAG size of input: 109 DAG size of output 96 [2018-04-11 20:48:20,140 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-04-11 20:48:20,140 INFO L93 Difference]: Finished difference Result 315 states and 333 transitions. [2018-04-11 20:48:20,141 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 95 states. [2018-04-11 20:48:20,141 INFO L78 Accepts]: Start accepts. Automaton has 69 states. Word has length 80 [2018-04-11 20:48:20,141 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-04-11 20:48:20,142 INFO L225 Difference]: With dead ends: 315 [2018-04-11 20:48:20,142 INFO L226 Difference]: Without dead ends: 309 [2018-04-11 20:48:20,143 INFO L567 BasicCegarLoop]: 0 DeclaredPredicates, 244 GetRequests, 85 SyntacticMatches, 7 SemanticMatches, 152 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 6309 ImplicationChecksByTransitivity, 93.8s TimeCoverageRelationStatistics Valid=2166, Invalid=21396, Unknown=0, NotChecked=0, Total=23562 [2018-04-11 20:48:20,144 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 309 states. [2018-04-11 20:48:20,166 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 309 to 220. [2018-04-11 20:48:20,166 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 220 states. [2018-04-11 20:48:20,167 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 220 states to 220 states and 235 transitions. [2018-04-11 20:48:20,167 INFO L78 Accepts]: Start accepts. Automaton has 220 states and 235 transitions. Word has length 80 [2018-04-11 20:48:20,167 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-04-11 20:48:20,167 INFO L459 AbstractCegarLoop]: Abstraction has 220 states and 235 transitions. [2018-04-11 20:48:20,167 INFO L460 AbstractCegarLoop]: Interpolant automaton has 69 states. [2018-04-11 20:48:20,168 INFO L276 IsEmpty]: Start isEmpty. Operand 220 states and 235 transitions. [2018-04-11 20:48:20,168 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 82 [2018-04-11 20:48:20,168 INFO L347 BasicCegarLoop]: Found error trace [2018-04-11 20:48:20,168 INFO L355 BasicCegarLoop]: trace histogram [3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2018-04-11 20:48:20,168 INFO L408 AbstractCegarLoop]: === Iteration 28 === [__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]=== [2018-04-11 20:48:20,168 INFO L82 PathProgramCache]: Analyzing trace with hash -2111619797, now seen corresponding path program 2 times No working directory specified, using /storage/ultimate/releaseScripts/default/UAutomizer-linux/z3 Starting monitored process 29 with z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 29 with z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2018-04-11 20:48:20,174 INFO L68 tionRefinementEngine]: Using refinement strategy FixedRefinementStrategy [2018-04-11 20:48:20,198 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-04-11 20:48:20,202 INFO L270 TraceCheckSpWp]: Computing forward predicates... [2018-04-11 20:48:20,224 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 [2018-04-11 20:48:20,224 INFO L267 ElimStorePlain]: Start of recursive call 2: End of recursive call: and 1 xjuncts. [2018-04-11 20:48:20,236 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 [2018-04-11 20:48:20,236 INFO L267 ElimStorePlain]: Start of recursive call 3: End of recursive call: and 1 xjuncts. [2018-04-11 20:48:20,245 INFO L267 ElimStorePlain]: Start of recursive call 1: 2 dim-1 vars, End of recursive call: and 1 xjuncts. [2018-04-11 20:48:20,245 INFO L202 ElimStorePlain]: Needed 3 recursive calls to eliminate 2 variables, input treesize:26, output treesize:24 [2018-04-11 20:48:20,284 INFO L700 Elim1Store]: detected not equals via solver [2018-04-11 20:48:20,285 INFO L700 Elim1Store]: detected not equals via solver [2018-04-11 20:48:20,288 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 [2018-04-11 20:48:20,288 INFO L267 ElimStorePlain]: Start of recursive call 2: End of recursive call: and 1 xjuncts. [2018-04-11 20:48:20,304 INFO L477 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 1 select indices, 1 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 12 treesize of output 15 [2018-04-11 20:48:20,304 INFO L267 ElimStorePlain]: Start of recursive call 3: End of recursive call: and 1 xjuncts. [2018-04-11 20:48:20,314 INFO L267 ElimStorePlain]: Start of recursive call 1: 2 dim-1 vars, End of recursive call: and 1 xjuncts. [2018-04-11 20:48:20,315 INFO L202 ElimStorePlain]: Needed 3 recursive calls to eliminate 2 variables, input treesize:35, output treesize:28 [2018-04-11 20:48:20,352 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 19 treesize of output 16 [2018-04-11 20:48:20,354 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 [2018-04-11 20:48:20,354 INFO L267 ElimStorePlain]: Start of recursive call 3: End of recursive call: and 1 xjuncts. [2018-04-11 20:48:20,356 INFO L267 ElimStorePlain]: Start of recursive call 2: 1 dim-1 vars, End of recursive call: and 1 xjuncts. [2018-04-11 20:48:20,364 INFO L267 ElimStorePlain]: Start of recursive call 1: 1 dim-2 vars, End of recursive call: and 1 xjuncts. [2018-04-11 20:48:20,365 INFO L202 ElimStorePlain]: Needed 3 recursive calls to eliminate 1 variables, input treesize:44, output treesize:40 [2018-04-11 20:48:20,386 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 [2018-04-11 20:48:20,388 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 [2018-04-11 20:48:20,388 INFO L267 ElimStorePlain]: Start of recursive call 3: End of recursive call: and 1 xjuncts. [2018-04-11 20:48:20,392 INFO L267 ElimStorePlain]: Start of recursive call 2: 1 dim-1 vars, End of recursive call: and 1 xjuncts. [2018-04-11 20:48:20,402 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. [2018-04-11 20:48:20,402 INFO L202 ElimStorePlain]: Needed 3 recursive calls to eliminate 2 variables, input treesize:53, output treesize:49 [2018-04-11 20:48:20,917 INFO L477 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 0 stores, 2 select indices, 2 select index equivalence classes, 1 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 0 case distinctions, treesize of input 35 treesize of output 33 [2018-04-11 20:48:20,934 INFO L477 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 2 select indices, 2 select index equivalence classes, 0 disjoint index pairs (out of 1 index pairs), introduced 0 new quantified variables, introduced 1 case distinctions, treesize of input 19 treesize of output 16 [2018-04-11 20:48:20,934 INFO L267 ElimStorePlain]: Start of recursive call 3: End of recursive call: and 2 xjuncts. [2018-04-11 20:48:20,943 INFO L477 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 10 treesize of output 1 [2018-04-11 20:48:20,943 INFO L267 ElimStorePlain]: Start of recursive call 4: End of recursive call: and 1 xjuncts. [2018-04-11 20:48:20,946 INFO L267 ElimStorePlain]: Start of recursive call 2: 2 dim-1 vars, End of recursive call: and 2 xjuncts. [2018-04-11 20:48:20,957 INFO L267 ElimStorePlain]: Start of recursive call 1: 2 dim-0 vars, 1 dim-2 vars, End of recursive call: and 2 xjuncts. [2018-04-11 20:48:20,957 INFO L202 ElimStorePlain]: Needed 4 recursive calls to eliminate 3 variables, input treesize:64, output treesize:75 [2018-04-11 20:48:21,996 INFO L134 CoverageAnalysis]: Checked inductivity of 27 backedges. 0 proven. 27 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-04-11 20:48:21,997 INFO L314 TraceCheckSpWp]: Computing backward predicates... [2018-04-11 20:48:24,362 INFO L477 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 0 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 18 treesize of output 16 [2018-04-11 20:48:24,371 INFO L477 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 1 select indices, 1 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 7 treesize of output 3 [2018-04-11 20:48:24,371 INFO L267 ElimStorePlain]: Start of recursive call 3: End of recursive call: and 1 xjuncts. [2018-04-11 20:48:24,373 INFO L267 ElimStorePlain]: Start of recursive call 2: 1 dim-1 vars, End of recursive call: and 1 xjuncts. [2018-04-11 20:48:24,382 INFO L267 ElimStorePlain]: Start of recursive call 1: 1 dim-0 vars, 1 dim-2 vars, End of recursive call: and 1 xjuncts. [2018-04-11 20:48:24,382 INFO L202 ElimStorePlain]: Needed 3 recursive calls to eliminate 2 variables, input treesize:44, output treesize:58 [2018-04-11 20:48:24,912 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 36 treesize of output 39 [2018-04-11 20:48:24,936 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 [2018-04-11 20:48:24,936 INFO L267 ElimStorePlain]: Start of recursive call 3: End of recursive call: and 1 xjuncts. [2018-04-11 20:48:24,945 INFO L267 ElimStorePlain]: Start of recursive call 2: 1 dim-1 vars, End of recursive call: and 1 xjuncts. [2018-04-11 20:48:24,966 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 28 treesize of output 22 [2018-04-11 20:48:24,966 INFO L267 ElimStorePlain]: Start of recursive call 4: End of recursive call: and 1 xjuncts. [2018-04-11 20:48:24,990 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 36 treesize of output 30 [2018-04-11 20:48:24,990 INFO L267 ElimStorePlain]: Start of recursive call 5: End of recursive call: and 1 xjuncts. [2018-04-11 20:48:25,009 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 30 treesize of output 33 [2018-04-11 20:48:25,031 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 [2018-04-11 20:48:25,031 INFO L267 ElimStorePlain]: Start of recursive call 7: End of recursive call: and 1 xjuncts. [2018-04-11 20:48:25,038 INFO L267 ElimStorePlain]: Start of recursive call 6: 1 dim-1 vars, End of recursive call: and 1 xjuncts. [2018-04-11 20:48:25,055 INFO L267 ElimStorePlain]: Start of recursive call 1: 4 dim-0 vars, 4 dim-1 vars, End of recursive call: and 2 xjuncts. [2018-04-11 20:48:25,055 INFO L202 ElimStorePlain]: Needed 7 recursive calls to eliminate 8 variables, input treesize:88, output treesize:39 [2018-04-11 20:48:25,426 INFO L134 CoverageAnalysis]: Checked inductivity of 27 backedges. 0 proven. 27 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-04-11 20:48:25,449 INFO L320 seRefinementStrategy]: Constructing automaton from 0 perfect and 2 imperfect interpolant sequences. [2018-04-11 20:48:25,449 INFO L335 seRefinementStrategy]: Number of different interpolants: perfect sequences [] imperfect sequences [35, 34] total 68 [2018-04-11 20:48:25,450 INFO L442 AbstractCegarLoop]: Interpolant automaton has 69 states [2018-04-11 20:48:25,450 INFO L132 InterpolantAutomaton]: Constructing interpolant automaton starting with 69 interpolants. [2018-04-11 20:48:25,450 INFO L133 InterpolantAutomaton]: CoverageRelationStatistics Valid=236, Invalid=4456, Unknown=0, NotChecked=0, Total=4692 [2018-04-11 20:48:25,451 INFO L87 Difference]: Start difference. First operand 220 states and 235 transitions. Second operand 69 states. [2018-04-11 20:48:25,763 WARN L151 SmtUtils]: Spent 118ms on a formula simplification. DAG size of input: 75 DAG size of output 73 [2018-04-11 20:48:26,296 WARN L151 SmtUtils]: Spent 349ms on a formula simplification. DAG size of input: 104 DAG size of output 102 [2018-04-11 20:48:27,033 WARN L151 SmtUtils]: Spent 254ms on a formula simplification. DAG size of input: 102 DAG size of output 87 [2018-04-11 20:48:29,467 WARN L148 SmtUtils]: Spent 114ms on a formula simplification that was a NOOP. DAG size: 111 [2018-04-11 20:48:30,286 WARN L151 SmtUtils]: Spent 254ms on a formula simplification. DAG size of input: 120 DAG size of output 116 [2018-04-11 20:48:31,072 WARN L151 SmtUtils]: Spent 248ms on a formula simplification. DAG size of input: 114 DAG size of output 109 [2018-04-11 20:48:31,478 WARN L151 SmtUtils]: Spent 248ms on a formula simplification. DAG size of input: 116 DAG size of output 107 [2018-04-11 20:48:31,855 WARN L151 SmtUtils]: Spent 210ms on a formula simplification. DAG size of input: 110 DAG size of output 106 Received shutdown request... [2018-04-11 20:48:36,098 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 31 states. [2018-04-11 20:48:36,098 WARN L519 AbstractCegarLoop]: Verification canceled [2018-04-11 20:48:36,102 WARN L197 ceAbstractionStarter]: Timeout [2018-04-11 20:48:36,102 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 11.04 08:48:36 BoogieIcfgContainer [2018-04-11 20:48:36,102 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2018-04-11 20:48:36,103 INFO L168 Benchmark]: Toolchain (without parser) took 270257.88 ms. Allocated memory was 301.5 MB in the beginning and 408.9 MB in the end (delta: 107.5 MB). Free memory was 238.8 MB in the beginning and 355.8 MB in the end (delta: -117.0 MB). There was no memory consumed. Max. memory is 5.3 GB. [2018-04-11 20:48:36,104 INFO L168 Benchmark]: CDTParser took 0.26 ms. Allocated memory is still 301.5 MB. Free memory is still 263.8 MB. There was no memory consumed. Max. memory is 5.3 GB. [2018-04-11 20:48:36,104 INFO L168 Benchmark]: CACSL2BoogieTranslator took 321.94 ms. Allocated memory is still 301.5 MB. Free memory was 238.8 MB in the beginning and 214.7 MB in the end (delta: 24.1 MB). Peak memory consumption was 24.1 MB. Max. memory is 5.3 GB. [2018-04-11 20:48:36,105 INFO L168 Benchmark]: Boogie Preprocessor took 56.83 ms. Allocated memory is still 301.5 MB. Free memory was 214.7 MB in the beginning and 211.8 MB in the end (delta: 3.0 MB). Peak memory consumption was 3.0 MB. Max. memory is 5.3 GB. [2018-04-11 20:48:36,105 INFO L168 Benchmark]: RCFGBuilder took 526.45 ms. Allocated memory was 301.5 MB in the beginning and 455.6 MB in the end (delta: 154.1 MB). Free memory was 211.8 MB in the beginning and 387.8 MB in the end (delta: -176.1 MB). Peak memory consumption was 21.1 MB. Max. memory is 5.3 GB. [2018-04-11 20:48:36,105 INFO L168 Benchmark]: TraceAbstraction took 269347.37 ms. Allocated memory was 455.6 MB in the beginning and 408.9 MB in the end (delta: -46.7 MB). Free memory was 387.8 MB in the beginning and 355.8 MB in the end (delta: 32.0 MB). There was no memory consumed. Max. memory is 5.3 GB. [2018-04-11 20:48:36,107 INFO L344 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.26 ms. Allocated memory is still 301.5 MB. Free memory is still 263.8 MB. There was no memory consumed. Max. memory is 5.3 GB. * CACSL2BoogieTranslator took 321.94 ms. Allocated memory is still 301.5 MB. Free memory was 238.8 MB in the beginning and 214.7 MB in the end (delta: 24.1 MB). Peak memory consumption was 24.1 MB. Max. memory is 5.3 GB. * Boogie Preprocessor took 56.83 ms. Allocated memory is still 301.5 MB. Free memory was 214.7 MB in the beginning and 211.8 MB in the end (delta: 3.0 MB). Peak memory consumption was 3.0 MB. Max. memory is 5.3 GB. * RCFGBuilder took 526.45 ms. Allocated memory was 301.5 MB in the beginning and 455.6 MB in the end (delta: 154.1 MB). Free memory was 211.8 MB in the beginning and 387.8 MB in the end (delta: -176.1 MB). Peak memory consumption was 21.1 MB. Max. memory is 5.3 GB. * TraceAbstraction took 269347.37 ms. Allocated memory was 455.6 MB in the beginning and 408.9 MB in the end (delta: -46.7 MB). Free memory was 387.8 MB in the beginning and 355.8 MB in the end (delta: 32.0 MB). There was no memory consumed. Max. memory is 5.3 GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - TimeoutResultAtElement [Line: 549]: Timeout (TraceAbstraction) Unable to prove that pointer dereference always succeeds (line 549). Cancelled while BasicCegarLoop was constructing difference of abstraction (220states) and interpolant automaton (currently 31 states, 69 states before enhancement), while PredicateComparison was comparing new predicate (quantified with 0quantifier alternations) to 93 known predicates. - TimeoutResultAtElement [Line: 546]: Timeout (TraceAbstraction) Unable to prove that pointer dereference always succeeds (line 546). Cancelled while BasicCegarLoop was constructing difference of abstraction (220states) and interpolant automaton (currently 31 states, 69 states before enhancement), while PredicateComparison was comparing new predicate (quantified with 0quantifier alternations) to 93 known predicates. - TimeoutResultAtElement [Line: 553]: Timeout (TraceAbstraction) Unable to prove that pointer dereference always succeeds (line 553). Cancelled while BasicCegarLoop was constructing difference of abstraction (220states) and interpolant automaton (currently 31 states, 69 states before enhancement), while PredicateComparison was comparing new predicate (quantified with 0quantifier alternations) to 93 known predicates. - TimeoutResultAtElement [Line: 549]: Timeout (TraceAbstraction) Unable to prove that pointer dereference always succeeds (line 549). Cancelled while BasicCegarLoop was constructing difference of abstraction (220states) and interpolant automaton (currently 31 states, 69 states before enhancement), while PredicateComparison was comparing new predicate (quantified with 0quantifier alternations) to 93 known predicates. - TimeoutResultAtElement [Line: 549]: Timeout (TraceAbstraction) Unable to prove that pointer dereference always succeeds (line 549). Cancelled while BasicCegarLoop was constructing difference of abstraction (220states) and interpolant automaton (currently 31 states, 69 states before enhancement), while PredicateComparison was comparing new predicate (quantified with 0quantifier alternations) to 93 known predicates. - TimeoutResultAtElement [Line: 546]: Timeout (TraceAbstraction) Unable to prove that pointer dereference always succeeds (line 546). Cancelled while BasicCegarLoop was constructing difference of abstraction (220states) and interpolant automaton (currently 31 states, 69 states before enhancement), while PredicateComparison was comparing new predicate (quantified with 0quantifier alternations) to 93 known predicates. - TimeoutResultAtElement [Line: 553]: Timeout (TraceAbstraction) Unable to prove that pointer dereference always succeeds (line 553). Cancelled while BasicCegarLoop was constructing difference of abstraction (220states) and interpolant automaton (currently 31 states, 69 states before enhancement), while PredicateComparison was comparing new predicate (quantified with 0quantifier alternations) to 93 known predicates. - TimeoutResultAtElement [Line: 549]: Timeout (TraceAbstraction) Unable to prove that pointer dereference always succeeds (line 549). Cancelled while BasicCegarLoop was constructing difference of abstraction (220states) and interpolant automaton (currently 31 states, 69 states before enhancement), while PredicateComparison was comparing new predicate (quantified with 0quantifier alternations) to 93 known predicates. - TimeoutResultAtElement [Line: 574]: Timeout (TraceAbstraction) Unable to prove that pointer dereference always succeeds (line 574). Cancelled while BasicCegarLoop was constructing difference of abstraction (220states) and interpolant automaton (currently 31 states, 69 states before enhancement), while PredicateComparison was comparing new predicate (quantified with 0quantifier alternations) to 93 known predicates. - TimeoutResultAtElement [Line: 573]: Timeout (TraceAbstraction) Unable to prove that pointer dereference always succeeds (line 573). Cancelled while BasicCegarLoop was constructing difference of abstraction (220states) and interpolant automaton (currently 31 states, 69 states before enhancement), while PredicateComparison was comparing new predicate (quantified with 0quantifier alternations) to 93 known predicates. - TimeoutResultAtElement [Line: 574]: Timeout (TraceAbstraction) Unable to prove that pointer dereference always succeeds (line 574). Cancelled while BasicCegarLoop was constructing difference of abstraction (220states) and interpolant automaton (currently 31 states, 69 states before enhancement), while PredicateComparison was comparing new predicate (quantified with 0quantifier alternations) to 93 known predicates. - TimeoutResultAtElement [Line: 557]: Timeout (TraceAbstraction) Unable to prove that all allocated memory was freed (line 557). Cancelled while BasicCegarLoop was constructing difference of abstraction (220states) and interpolant automaton (currently 31 states, 69 states before enhancement), while PredicateComparison was comparing new predicate (quantified with 0quantifier alternations) to 93 known predicates. - TimeoutResultAtElement [Line: 573]: Timeout (TraceAbstraction) Unable to prove that pointer dereference always succeeds (line 573). Cancelled while BasicCegarLoop was constructing difference of abstraction (220states) and interpolant automaton (currently 31 states, 69 states before enhancement), while PredicateComparison was comparing new predicate (quantified with 0quantifier alternations) to 93 known predicates. - StatisticsResult: Ultimate Automizer benchmark data CFG has 6 procedures, 99 locations, 13 error locations. TIMEOUT Result, 269.2s OverallTime, 28 OverallIterations, 5 TraceHistogramMax, 235.4s AutomataDifference, 0.0s DeadEndRemovalTime, 0.0s HoareAnnotationTime, HoareTripleCheckerStatistics: 2016 SDtfs, 5841 SDslu, 19028 SDs, 0 SdLazy, 14177 SolverSat, 861 SolverUnsat, 10 SolverUnknown, 0 SolverNotchecked, 44.9s Time, PredicateUnifierStatistics: 0 DeclaredPredicates, 3101 GetRequests, 2026 SyntacticMatches, 34 SemanticMatches, 1040 ConstructedPredicates, 20 IntricatePredicates, 0 DeprecatedPredicates, 17331 ImplicationChecksByTransitivity, 215.2s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=220occurred in iteration=27, traceCheckStatistics: No data available, InterpolantConsolidationStatistics: No data available, PathInvariantsStatistics: No data available, 0/0 InterpolantCoveringCapability, TotalInterpolationStatistics: No data available, 0.0s AbstIntTime, 0 AbstIntIterations, 0 AbstIntStrong, NaN AbsIntWeakeningRatio, NaN AbsIntAvgWeakeningVarsNumRemoved, NaN AbsIntAvgWeakenedConjuncts, 0.0s DumpTime, AutomataMinimizationStatistics: 0.2s AutomataMinimizationTime, 27 MinimizatonAttempts, 596 StatesRemovedByMinimization, 19 NontrivialMinimizations, HoareAnnotationStatistics: No data available, RefinementEngineStatistics: TraceCheckStatistics: 0.1s SsaConstructionTime, 0.3s SatisfiabilityAnalysisTime, 31.9s InterpolantComputationTime, 1335 NumberOfCodeBlocks, 1335 NumberOfCodeBlocksAsserted, 28 NumberOfCheckSat, 2614 ConstructedInterpolants, 526 QuantifiedInterpolants, 2747233 SizeOfPredicates, 482 NumberOfNonLiveVariables, 4013 ConjunctsInSsa, 893 ConjunctsInUnsatCore, 56 InterpolantComputations, 34 PerfectInterpolantSequences, 12/392 InterpolantCoveringCapability, InvariantSynthesisStatistics: No data available, InterpolantConsolidationStatistics: No data available, ReuseStatistics: No data available RESULT: Ultimate could not prove your program: Timeout Written .csv to /storage/ultimate/releaseScripts/default/UAutomizer-linux/../../../releaseScripts/default/UAutomizer-linux/csv/openbsd_cstrncat-alloca_true-valid-memsafety_true-termination.i_svcomp-DerefFreeMemtrack-32bit-Automizer_Fixed_noBitfields+AI_EQ_SS.epf_AutomizerC.xml/Csv-Benchmark-0-2018-04-11_20-48-36-114.csv Written .csv to /storage/ultimate/releaseScripts/default/UAutomizer-linux/../../../releaseScripts/default/UAutomizer-linux/csv/openbsd_cstrncat-alloca_true-valid-memsafety_true-termination.i_svcomp-DerefFreeMemtrack-32bit-Automizer_Fixed_noBitfields+AI_EQ_SS.epf_AutomizerC.xml/Csv-TraceAbstractionBenchmarks-0-2018-04-11_20-48-36-114.csv Completed graceful shutdown