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_cstrspn-alloca_true-valid-memsafety_true-termination.i -------------------------------------------------------------------------------- This is Ultimate 0.1.23-8168ed2-m [2018-04-11 20:49:45,130 INFO L170 SettingsManager]: Resetting all preferences to default values... [2018-04-11 20:49:45,132 INFO L174 SettingsManager]: Resetting UltimateCore preferences to default values [2018-04-11 20:49:45,145 INFO L177 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2018-04-11 20:49:45,146 INFO L174 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2018-04-11 20:49:45,146 INFO L174 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2018-04-11 20:49:45,147 INFO L174 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2018-04-11 20:49:45,149 INFO L174 SettingsManager]: Resetting LassoRanker preferences to default values [2018-04-11 20:49:45,151 INFO L174 SettingsManager]: Resetting Reaching Definitions preferences to default values [2018-04-11 20:49:45,152 INFO L174 SettingsManager]: Resetting SyntaxChecker preferences to default values [2018-04-11 20:49:45,153 INFO L177 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2018-04-11 20:49:45,153 INFO L174 SettingsManager]: Resetting LTL2Aut preferences to default values [2018-04-11 20:49:45,154 INFO L174 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2018-04-11 20:49:45,155 INFO L174 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2018-04-11 20:49:45,156 INFO L174 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2018-04-11 20:49:45,159 INFO L174 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2018-04-11 20:49:45,161 INFO L174 SettingsManager]: Resetting CodeCheck preferences to default values [2018-04-11 20:49:45,162 INFO L174 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2018-04-11 20:49:45,164 INFO L174 SettingsManager]: Resetting RCFGBuilder preferences to default values [2018-04-11 20:49:45,165 INFO L174 SettingsManager]: Resetting TraceAbstraction preferences to default values [2018-04-11 20:49:45,167 INFO L177 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... 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[2018-04-11 20:49:45,173 INFO L174 SettingsManager]: Resetting Witness Parser preferences to default values [2018-04-11 20:49:45,174 INFO L181 SettingsManager]: Finished resetting all preferences to default values... [2018-04-11 20:49:45,174 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 20:49:45,198 INFO L110 SettingsManager]: Loading preferences was successful [2018-04-11 20:49:45,198 INFO L112 SettingsManager]: Preferences different from defaults after loading the file: [2018-04-11 20:49:45,198 INFO L131 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2018-04-11 20:49:45,198 INFO L133 SettingsManager]: * ultimate.logging.details=de.uni_freiburg.informatik.ultimate.plugins.icfgtransformation=DEBUG; [2018-04-11 20:49:45,199 INFO L131 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2018-04-11 20:49:45,199 INFO L133 SettingsManager]: * to procedures, called more than once=true [2018-04-11 20:49:45,199 INFO L131 SettingsManager]: Preferences of Abstract Interpretation differ from their defaults: [2018-04-11 20:49:45,199 INFO L133 SettingsManager]: * Abstract domain for RCFG-of-the-future=VPDomain [2018-04-11 20:49:45,199 INFO L133 SettingsManager]: * Parallel states before merging=1 [2018-04-11 20:49:45,199 INFO L133 SettingsManager]: * Use the RCFG-of-the-future interface=true [2018-04-11 20:49:45,200 INFO L131 SettingsManager]: Preferences of LTL2Aut differ from their defaults: [2018-04-11 20:49:45,200 INFO L133 SettingsManager]: * Property to check=[] a a: x > 42 [2018-04-11 20:49:45,200 INFO L131 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2018-04-11 20:49:45,200 INFO L133 SettingsManager]: * sizeof long=4 [2018-04-11 20:49:45,200 INFO L133 SettingsManager]: * Check unreachability of error function in SV-COMP mode=false [2018-04-11 20:49:45,200 INFO L133 SettingsManager]: * Overapproximate operations on floating types=true [2018-04-11 20:49:45,201 INFO L133 SettingsManager]: * sizeof POINTER=4 [2018-04-11 20:49:45,201 INFO L133 SettingsManager]: * Check division by zero=IGNORE [2018-04-11 20:49:45,201 INFO L133 SettingsManager]: * Check for the main procedure if all allocated memory was freed=true [2018-04-11 20:49:45,201 INFO L133 SettingsManager]: * SV-COMP memtrack compatibility mode=true [2018-04-11 20:49:45,201 INFO L133 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2018-04-11 20:49:45,201 INFO L133 SettingsManager]: * sizeof long double=12 [2018-04-11 20:49:45,202 INFO L131 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2018-04-11 20:49:45,202 INFO L133 SettingsManager]: * Size of a code block=SingleStatement [2018-04-11 20:49:45,202 INFO L133 SettingsManager]: * Add additional assume for each assert=false [2018-04-11 20:49:45,202 INFO L133 SettingsManager]: * SMT solver=External_DefaultMode [2018-04-11 20:49:45,202 INFO L133 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2018-04-11 20:49:45,203 INFO L131 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2018-04-11 20:49:45,203 INFO L133 SettingsManager]: * Interpolant automaton=TWOTRACK [2018-04-11 20:49:45,203 INFO L133 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2018-04-11 20:49:45,203 INFO L133 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2018-04-11 20:49:45,203 INFO L133 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2018-04-11 20:49:45,203 INFO L133 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2018-04-11 20:49:45,203 INFO L133 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2018-04-11 20:49:45,204 INFO L131 SettingsManager]: Preferences of IcfgTransformer differ from their defaults: [2018-04-11 20:49:45,204 INFO L133 SettingsManager]: * TransformationType=HEAP_SEPARATOR [2018-04-11 20:49:45,204 INFO L131 SettingsManager]: Preferences of Boogie Printer differ from their defaults: [2018-04-11 20:49:45,205 INFO L133 SettingsManager]: * Dump path:=C:\Users\alex\AppData\Local\Temp\ [2018-04-11 20:49:45,236 INFO L81 nceAwareModelManager]: Repository-Root is: /tmp [2018-04-11 20:49:45,247 INFO L266 ainManager$Toolchain]: [Toolchain 1]: Parser(s) successfully (re)initialized [2018-04-11 20:49:45,250 INFO L222 ainManager$Toolchain]: [Toolchain 1]: Toolchain data selected. [2018-04-11 20:49:45,251 INFO L271 PluginConnector]: Initializing CDTParser... [2018-04-11 20:49:45,251 INFO L276 PluginConnector]: CDTParser initialized [2018-04-11 20:49:45,252 INFO L431 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/svcomp/array-memsafety/openbsd_cstrspn-alloca_true-valid-memsafety_true-termination.i [2018-04-11 20:49:45,582 INFO L225 CDTParser]: Created temporary CDT project at /storage/ultimate/releaseScripts/default/UAutomizer-linux/data/FLAGa2151b590 [2018-04-11 20:49:45,743 INFO L287 CDTParser]: IsIndexed: true [2018-04-11 20:49:45,743 INFO L288 CDTParser]: Found 1 translation units. [2018-04-11 20:49:45,743 INFO L168 CDTParser]: Scanning openbsd_cstrspn-alloca_true-valid-memsafety_true-termination.i [2018-04-11 20:49:45,755 INFO L210 ultiparseSymbolTable]: Include resolver: [2018-04-11 20:49:45,755 INFO L215 ultiparseSymbolTable]: [2018-04-11 20:49:45,755 INFO L218 ultiparseSymbolTable]: Function table: [2018-04-11 20:49:45,755 INFO L221 ultiparseSymbolTable]: Function definition of __U_MULTI_fopenbsd_cstrspn_alloca_true_valid_memsafety_true_termination_i____bswap_64 ('__bswap_64') in openbsd_cstrspn-alloca_true-valid-memsafety_true-termination.i [2018-04-11 20:49:45,755 INFO L221 ultiparseSymbolTable]: Function definition of null ('main') in openbsd_cstrspn-alloca_true-valid-memsafety_true-termination.i [2018-04-11 20:49:45,755 INFO L221 ultiparseSymbolTable]: Function definition of __U_MULTI_fopenbsd_cstrspn_alloca_true_valid_memsafety_true_termination_i____bswap_32 ('__bswap_32') in openbsd_cstrspn-alloca_true-valid-memsafety_true-termination.i [2018-04-11 20:49:45,756 INFO L221 ultiparseSymbolTable]: Function definition of __U_MULTI_fopenbsd_cstrspn_alloca_true_valid_memsafety_true_termination_i__cstrspn ('cstrspn') in openbsd_cstrspn-alloca_true-valid-memsafety_true-termination.i [2018-04-11 20:49:45,756 INFO L227 ultiparseSymbolTable]: Global variable table: [2018-04-11 20:49:45,756 INFO L230 ultiparseSymbolTable]: Global variable declaration of __U_MULTI_fopenbsd_cstrspn_alloca_true_valid_memsafety_true_termination_i__fsfilcnt_t in openbsd_cstrspn-alloca_true-valid-memsafety_true-termination.i [2018-04-11 20:49:45,756 INFO L230 ultiparseSymbolTable]: Global variable declaration of __U_MULTI_fopenbsd_cstrspn_alloca_true_valid_memsafety_true_termination_i____ssize_t in openbsd_cstrspn-alloca_true-valid-memsafety_true-termination.i [2018-04-11 20:49:45,756 INFO L230 ultiparseSymbolTable]: Global variable declaration of __U_MULTI_fopenbsd_cstrspn_alloca_true_valid_memsafety_true_termination_i____socklen_t in openbsd_cstrspn-alloca_true-valid-memsafety_true-termination.i [2018-04-11 20:49:45,756 INFO L230 ultiparseSymbolTable]: Global variable declaration of __U_MULTI_fopenbsd_cstrspn_alloca_true_valid_memsafety_true_termination_i__u_int64_t in openbsd_cstrspn-alloca_true-valid-memsafety_true-termination.i [2018-04-11 20:49:45,757 INFO L230 ultiparseSymbolTable]: Global variable declaration of __U_MULTI_fopenbsd_cstrspn_alloca_true_valid_memsafety_true_termination_i____time_t in openbsd_cstrspn-alloca_true-valid-memsafety_true-termination.i [2018-04-11 20:49:45,757 INFO L230 ultiparseSymbolTable]: Global variable declaration of __U_MULTI_fopenbsd_cstrspn_alloca_true_valid_memsafety_true_termination_i__int8_t in openbsd_cstrspn-alloca_true-valid-memsafety_true-termination.i [2018-04-11 20:49:45,757 INFO L230 ultiparseSymbolTable]: Global variable declaration of __U_MULTI_fopenbsd_cstrspn_alloca_true_valid_memsafety_true_termination_i__gid_t in openbsd_cstrspn-alloca_true-valid-memsafety_true-termination.i [2018-04-11 20:49:45,757 INFO L230 ultiparseSymbolTable]: Global variable declaration of __U_MULTI_fopenbsd_cstrspn_alloca_true_valid_memsafety_true_termination_i____nlink_t in openbsd_cstrspn-alloca_true-valid-memsafety_true-termination.i [2018-04-11 20:49:45,757 INFO L230 ultiparseSymbolTable]: Global variable declaration of __U_MULTI_fopenbsd_cstrspn_alloca_true_valid_memsafety_true_termination_i____blkcnt64_t in openbsd_cstrspn-alloca_true-valid-memsafety_true-termination.i [2018-04-11 20:49:45,757 INFO L230 ultiparseSymbolTable]: Global variable declaration of __U_MULTI_fopenbsd_cstrspn_alloca_true_valid_memsafety_true_termination_i__ldiv_t in openbsd_cstrspn-alloca_true-valid-memsafety_true-termination.i [2018-04-11 20:49:45,757 INFO L230 ultiparseSymbolTable]: Global variable declaration of __U_MULTI_fopenbsd_cstrspn_alloca_true_valid_memsafety_true_termination_i__pthread_mutex_t in openbsd_cstrspn-alloca_true-valid-memsafety_true-termination.i [2018-04-11 20:49:45,757 INFO L230 ultiparseSymbolTable]: Global variable declaration of __U_MULTI_fopenbsd_cstrspn_alloca_true_valid_memsafety_true_termination_i____u_short in openbsd_cstrspn-alloca_true-valid-memsafety_true-termination.i [2018-04-11 20:49:45,758 INFO L230 ultiparseSymbolTable]: Global variable declaration of __U_MULTI_fopenbsd_cstrspn_alloca_true_valid_memsafety_true_termination_i__ino_t in openbsd_cstrspn-alloca_true-valid-memsafety_true-termination.i [2018-04-11 20:49:45,758 INFO L230 ultiparseSymbolTable]: Global variable declaration of __U_MULTI_fopenbsd_cstrspn_alloca_true_valid_memsafety_true_termination_i__register_t in openbsd_cstrspn-alloca_true-valid-memsafety_true-termination.i [2018-04-11 20:49:45,758 INFO L230 ultiparseSymbolTable]: Global variable declaration of __U_MULTI_fopenbsd_cstrspn_alloca_true_valid_memsafety_true_termination_i__pid_t in openbsd_cstrspn-alloca_true-valid-memsafety_true-termination.i [2018-04-11 20:49:45,758 INFO L230 ultiparseSymbolTable]: Global variable declaration of __U_MULTI_fopenbsd_cstrspn_alloca_true_valid_memsafety_true_termination_i__int32_t in openbsd_cstrspn-alloca_true-valid-memsafety_true-termination.i [2018-04-11 20:49:45,758 INFO L230 ultiparseSymbolTable]: Global variable declaration of __U_MULTI_fopenbsd_cstrspn_alloca_true_valid_memsafety_true_termination_i____rlim_t in openbsd_cstrspn-alloca_true-valid-memsafety_true-termination.i [2018-04-11 20:49:45,758 INFO L230 ultiparseSymbolTable]: Global variable declaration of __U_MULTI_fopenbsd_cstrspn_alloca_true_valid_memsafety_true_termination_i____fsfilcnt64_t in openbsd_cstrspn-alloca_true-valid-memsafety_true-termination.i [2018-04-11 20:49:45,758 INFO L230 ultiparseSymbolTable]: Global variable declaration of __U_MULTI_fopenbsd_cstrspn_alloca_true_valid_memsafety_true_termination_i__timer_t in openbsd_cstrspn-alloca_true-valid-memsafety_true-termination.i [2018-04-11 20:49:45,759 INFO L230 ultiparseSymbolTable]: Global variable declaration of __U_MULTI_fopenbsd_cstrspn_alloca_true_valid_memsafety_true_termination_i__u_int in openbsd_cstrspn-alloca_true-valid-memsafety_true-termination.i [2018-04-11 20:49:45,759 INFO L230 ultiparseSymbolTable]: Global variable declaration of __U_MULTI_fopenbsd_cstrspn_alloca_true_valid_memsafety_true_termination_i__mode_t in openbsd_cstrspn-alloca_true-valid-memsafety_true-termination.i [2018-04-11 20:49:45,759 INFO L230 ultiparseSymbolTable]: Global variable declaration of __U_MULTI_fopenbsd_cstrspn_alloca_true_valid_memsafety_true_termination_i____int32_t in openbsd_cstrspn-alloca_true-valid-memsafety_true-termination.i [2018-04-11 20:49:45,759 INFO L230 ultiparseSymbolTable]: Global variable declaration of __U_MULTI_fopenbsd_cstrspn_alloca_true_valid_memsafety_true_termination_i__key_t in openbsd_cstrspn-alloca_true-valid-memsafety_true-termination.i [2018-04-11 20:49:45,759 INFO L230 ultiparseSymbolTable]: Global variable declaration of __U_MULTI_fopenbsd_cstrspn_alloca_true_valid_memsafety_true_termination_i____suseconds_t in openbsd_cstrspn-alloca_true-valid-memsafety_true-termination.i [2018-04-11 20:49:45,759 INFO L230 ultiparseSymbolTable]: Global variable declaration of __U_MULTI_fopenbsd_cstrspn_alloca_true_valid_memsafety_true_termination_i____int8_t in openbsd_cstrspn-alloca_true-valid-memsafety_true-termination.i [2018-04-11 20:49:45,759 INFO L230 ultiparseSymbolTable]: Global variable declaration of __U_MULTI_fopenbsd_cstrspn_alloca_true_valid_memsafety_true_termination_i____fsblkcnt64_t in openbsd_cstrspn-alloca_true-valid-memsafety_true-termination.i [2018-04-11 20:49:45,760 INFO L230 ultiparseSymbolTable]: Global variable declaration of __U_MULTI_fopenbsd_cstrspn_alloca_true_valid_memsafety_true_termination_i__fsblkcnt_t in openbsd_cstrspn-alloca_true-valid-memsafety_true-termination.i [2018-04-11 20:49:45,760 INFO L230 ultiparseSymbolTable]: Global variable declaration of __U_MULTI_fopenbsd_cstrspn_alloca_true_valid_memsafety_true_termination_i____rlim64_t in openbsd_cstrspn-alloca_true-valid-memsafety_true-termination.i [2018-04-11 20:49:45,760 INFO L230 ultiparseSymbolTable]: Global variable declaration of __U_MULTI_fopenbsd_cstrspn_alloca_true_valid_memsafety_true_termination_i____fsfilcnt_t in openbsd_cstrspn-alloca_true-valid-memsafety_true-termination.i [2018-04-11 20:49:45,760 INFO L230 ultiparseSymbolTable]: Global variable declaration of __U_MULTI_fopenbsd_cstrspn_alloca_true_valid_memsafety_true_termination_i__pthread_mutexattr_t in openbsd_cstrspn-alloca_true-valid-memsafety_true-termination.i [2018-04-11 20:49:45,760 INFO L230 ultiparseSymbolTable]: Global variable declaration of __U_MULTI_fopenbsd_cstrspn_alloca_true_valid_memsafety_true_termination_i____timer_t in openbsd_cstrspn-alloca_true-valid-memsafety_true-termination.i [2018-04-11 20:49:45,760 INFO L230 ultiparseSymbolTable]: Global variable declaration of __U_MULTI_fopenbsd_cstrspn_alloca_true_valid_memsafety_true_termination_i__pthread_t in openbsd_cstrspn-alloca_true-valid-memsafety_true-termination.i [2018-04-11 20:49:45,760 INFO L230 ultiparseSymbolTable]: Global variable declaration of __U_MULTI_fopenbsd_cstrspn_alloca_true_valid_memsafety_true_termination_i____id_t in openbsd_cstrspn-alloca_true-valid-memsafety_true-termination.i [2018-04-11 20:49:45,760 INFO L230 ultiparseSymbolTable]: Global variable declaration of __U_MULTI_fopenbsd_cstrspn_alloca_true_valid_memsafety_true_termination_i__nlink_t in openbsd_cstrspn-alloca_true-valid-memsafety_true-termination.i [2018-04-11 20:49:45,761 INFO L230 ultiparseSymbolTable]: Global variable declaration of __U_MULTI_fopenbsd_cstrspn_alloca_true_valid_memsafety_true_termination_i____qaddr_t in openbsd_cstrspn-alloca_true-valid-memsafety_true-termination.i [2018-04-11 20:49:45,761 INFO L230 ultiparseSymbolTable]: Global variable declaration of __U_MULTI_fopenbsd_cstrspn_alloca_true_valid_memsafety_true_termination_i____int64_t in openbsd_cstrspn-alloca_true-valid-memsafety_true-termination.i [2018-04-11 20:49:45,761 INFO L230 ultiparseSymbolTable]: Global variable declaration of __U_MULTI_fopenbsd_cstrspn_alloca_true_valid_memsafety_true_termination_i____fsblkcnt_t in openbsd_cstrspn-alloca_true-valid-memsafety_true-termination.i [2018-04-11 20:49:45,761 INFO L230 ultiparseSymbolTable]: Global variable declaration of __U_MULTI_fopenbsd_cstrspn_alloca_true_valid_memsafety_true_termination_i____syscall_ulong_t in openbsd_cstrspn-alloca_true-valid-memsafety_true-termination.i [2018-04-11 20:49:45,761 INFO L230 ultiparseSymbolTable]: Global variable declaration of __U_MULTI_fopenbsd_cstrspn_alloca_true_valid_memsafety_true_termination_i__loff_t in openbsd_cstrspn-alloca_true-valid-memsafety_true-termination.i [2018-04-11 20:49:45,761 INFO L230 ultiparseSymbolTable]: Global variable declaration of __U_MULTI_fopenbsd_cstrspn_alloca_true_valid_memsafety_true_termination_i__u_int8_t in openbsd_cstrspn-alloca_true-valid-memsafety_true-termination.i [2018-04-11 20:49:45,761 INFO L230 ultiparseSymbolTable]: Global variable declaration of __U_MULTI_fopenbsd_cstrspn_alloca_true_valid_memsafety_true_termination_i__uint in openbsd_cstrspn-alloca_true-valid-memsafety_true-termination.i [2018-04-11 20:49:45,762 INFO L230 ultiparseSymbolTable]: Global variable declaration of __U_MULTI_fopenbsd_cstrspn_alloca_true_valid_memsafety_true_termination_i____fd_mask in openbsd_cstrspn-alloca_true-valid-memsafety_true-termination.i [2018-04-11 20:49:45,762 INFO L230 ultiparseSymbolTable]: Global variable declaration of __U_MULTI_fopenbsd_cstrspn_alloca_true_valid_memsafety_true_termination_i____u_int in openbsd_cstrspn-alloca_true-valid-memsafety_true-termination.i [2018-04-11 20:49:45,762 INFO L230 ultiparseSymbolTable]: Global variable declaration of __U_MULTI_fopenbsd_cstrspn_alloca_true_valid_memsafety_true_termination_i__pthread_key_t in openbsd_cstrspn-alloca_true-valid-memsafety_true-termination.i [2018-04-11 20:49:45,762 INFO L230 ultiparseSymbolTable]: Global variable declaration of __U_MULTI_fopenbsd_cstrspn_alloca_true_valid_memsafety_true_termination_i__pthread_rwlock_t in openbsd_cstrspn-alloca_true-valid-memsafety_true-termination.i [2018-04-11 20:49:45,762 INFO L230 ultiparseSymbolTable]: Global variable declaration of __U_MULTI_fopenbsd_cstrspn_alloca_true_valid_memsafety_true_termination_i____uid_t in openbsd_cstrspn-alloca_true-valid-memsafety_true-termination.i [2018-04-11 20:49:45,762 INFO L230 ultiparseSymbolTable]: Global variable declaration of __U_MULTI_fopenbsd_cstrspn_alloca_true_valid_memsafety_true_termination_i__u_quad_t in openbsd_cstrspn-alloca_true-valid-memsafety_true-termination.i [2018-04-11 20:49:45,762 INFO L230 ultiparseSymbolTable]: Global variable declaration of __U_MULTI_fopenbsd_cstrspn_alloca_true_valid_memsafety_true_termination_i____key_t in openbsd_cstrspn-alloca_true-valid-memsafety_true-termination.i [2018-04-11 20:49:45,762 INFO L230 ultiparseSymbolTable]: Global variable declaration of __U_MULTI_fopenbsd_cstrspn_alloca_true_valid_memsafety_true_termination_i____sig_atomic_t in openbsd_cstrspn-alloca_true-valid-memsafety_true-termination.i [2018-04-11 20:49:45,762 INFO L230 ultiparseSymbolTable]: Global variable declaration of __U_MULTI_fopenbsd_cstrspn_alloca_true_valid_memsafety_true_termination_i____fsword_t in openbsd_cstrspn-alloca_true-valid-memsafety_true-termination.i [2018-04-11 20:49:45,762 INFO L230 ultiparseSymbolTable]: Global variable declaration of __U_MULTI_fopenbsd_cstrspn_alloca_true_valid_memsafety_true_termination_i____uint64_t in openbsd_cstrspn-alloca_true-valid-memsafety_true-termination.i [2018-04-11 20:49:45,762 INFO L230 ultiparseSymbolTable]: Global variable declaration of __U_MULTI_fopenbsd_cstrspn_alloca_true_valid_memsafety_true_termination_i____useconds_t in openbsd_cstrspn-alloca_true-valid-memsafety_true-termination.i [2018-04-11 20:49:45,762 INFO L230 ultiparseSymbolTable]: Global variable declaration of __U_MULTI_fopenbsd_cstrspn_alloca_true_valid_memsafety_true_termination_i__sigset_t in openbsd_cstrspn-alloca_true-valid-memsafety_true-termination.i [2018-04-11 20:49:45,763 INFO L230 ultiparseSymbolTable]: Global variable declaration of __U_MULTI_fopenbsd_cstrspn_alloca_true_valid_memsafety_true_termination_i____blkcnt_t in openbsd_cstrspn-alloca_true-valid-memsafety_true-termination.i [2018-04-11 20:49:45,763 INFO L230 ultiparseSymbolTable]: Global variable declaration of __U_MULTI_fopenbsd_cstrspn_alloca_true_valid_memsafety_true_termination_i__pthread_barrierattr_t in openbsd_cstrspn-alloca_true-valid-memsafety_true-termination.i [2018-04-11 20:49:45,763 INFO L230 ultiparseSymbolTable]: Global variable declaration of __U_MULTI_fopenbsd_cstrspn_alloca_true_valid_memsafety_true_termination_i__ssize_t in openbsd_cstrspn-alloca_true-valid-memsafety_true-termination.i [2018-04-11 20:49:45,763 INFO L230 ultiparseSymbolTable]: Global variable declaration of __U_MULTI_fopenbsd_cstrspn_alloca_true_valid_memsafety_true_termination_i__time_t in openbsd_cstrspn-alloca_true-valid-memsafety_true-termination.i [2018-04-11 20:49:45,763 INFO L230 ultiparseSymbolTable]: Global variable declaration of __U_MULTI_fopenbsd_cstrspn_alloca_true_valid_memsafety_true_termination_i__dev_t in openbsd_cstrspn-alloca_true-valid-memsafety_true-termination.i [2018-04-11 20:49:45,763 INFO L230 ultiparseSymbolTable]: Global variable declaration of __U_MULTI_fopenbsd_cstrspn_alloca_true_valid_memsafety_true_termination_i__id_t in openbsd_cstrspn-alloca_true-valid-memsafety_true-termination.i [2018-04-11 20:49:45,763 INFO L230 ultiparseSymbolTable]: Global variable declaration of __U_MULTI_fopenbsd_cstrspn_alloca_true_valid_memsafety_true_termination_i____uint16_t in openbsd_cstrspn-alloca_true-valid-memsafety_true-termination.i [2018-04-11 20:49:45,763 INFO L230 ultiparseSymbolTable]: Global variable declaration of __U_MULTI_fopenbsd_cstrspn_alloca_true_valid_memsafety_true_termination_i____fsid_t in openbsd_cstrspn-alloca_true-valid-memsafety_true-termination.i [2018-04-11 20:49:45,763 INFO L230 ultiparseSymbolTable]: Global variable declaration of __U_MULTI_fopenbsd_cstrspn_alloca_true_valid_memsafety_true_termination_i____ino64_t in openbsd_cstrspn-alloca_true-valid-memsafety_true-termination.i [2018-04-11 20:49:45,763 INFO L230 ultiparseSymbolTable]: Global variable declaration of __U_MULTI_fopenbsd_cstrspn_alloca_true_valid_memsafety_true_termination_i__daddr_t in openbsd_cstrspn-alloca_true-valid-memsafety_true-termination.i [2018-04-11 20:49:45,763 INFO L230 ultiparseSymbolTable]: Global variable declaration of __U_MULTI_fopenbsd_cstrspn_alloca_true_valid_memsafety_true_termination_i____quad_t in openbsd_cstrspn-alloca_true-valid-memsafety_true-termination.i [2018-04-11 20:49:45,763 INFO L230 ultiparseSymbolTable]: Global variable declaration of __U_MULTI_fopenbsd_cstrspn_alloca_true_valid_memsafety_true_termination_i____syscall_slong_t in openbsd_cstrspn-alloca_true-valid-memsafety_true-termination.i [2018-04-11 20:49:45,763 INFO L230 ultiparseSymbolTable]: Global variable declaration of __U_MULTI_fopenbsd_cstrspn_alloca_true_valid_memsafety_true_termination_i__ushort in openbsd_cstrspn-alloca_true-valid-memsafety_true-termination.i [2018-04-11 20:49:45,763 INFO L230 ultiparseSymbolTable]: Global variable declaration of __U_MULTI_fopenbsd_cstrspn_alloca_true_valid_memsafety_true_termination_i____u_quad_t in openbsd_cstrspn-alloca_true-valid-memsafety_true-termination.i [2018-04-11 20:49:45,764 INFO L230 ultiparseSymbolTable]: Global variable declaration of __U_MULTI_fopenbsd_cstrspn_alloca_true_valid_memsafety_true_termination_i__pthread_rwlockattr_t in openbsd_cstrspn-alloca_true-valid-memsafety_true-termination.i [2018-04-11 20:49:45,764 INFO L230 ultiparseSymbolTable]: Global variable declaration of __U_MULTI_fopenbsd_cstrspn_alloca_true_valid_memsafety_true_termination_i__suseconds_t in openbsd_cstrspn-alloca_true-valid-memsafety_true-termination.i [2018-04-11 20:49:45,764 INFO L230 ultiparseSymbolTable]: Global variable declaration of __U_MULTI_fopenbsd_cstrspn_alloca_true_valid_memsafety_true_termination_i__u_long in openbsd_cstrspn-alloca_true-valid-memsafety_true-termination.i [2018-04-11 20:49:45,764 INFO L230 ultiparseSymbolTable]: Global variable declaration of __U_MULTI_fopenbsd_cstrspn_alloca_true_valid_memsafety_true_termination_i__fd_mask in openbsd_cstrspn-alloca_true-valid-memsafety_true-termination.i [2018-04-11 20:49:45,764 INFO L230 ultiparseSymbolTable]: Global variable declaration of __U_MULTI_fopenbsd_cstrspn_alloca_true_valid_memsafety_true_termination_i__pthread_barrier_t in openbsd_cstrspn-alloca_true-valid-memsafety_true-termination.i [2018-04-11 20:49:45,764 INFO L230 ultiparseSymbolTable]: Global variable declaration of __U_MULTI_fopenbsd_cstrspn_alloca_true_valid_memsafety_true_termination_i__clock_t in openbsd_cstrspn-alloca_true-valid-memsafety_true-termination.i [2018-04-11 20:49:45,764 INFO L230 ultiparseSymbolTable]: Global variable declaration of __U_MULTI_fopenbsd_cstrspn_alloca_true_valid_memsafety_true_termination_i____off_t in openbsd_cstrspn-alloca_true-valid-memsafety_true-termination.i [2018-04-11 20:49:45,764 INFO L230 ultiparseSymbolTable]: Global variable declaration of __U_MULTI_fopenbsd_cstrspn_alloca_true_valid_memsafety_true_termination_i__fsid_t in openbsd_cstrspn-alloca_true-valid-memsafety_true-termination.i [2018-04-11 20:49:45,764 INFO L230 ultiparseSymbolTable]: Global variable declaration of __U_MULTI_fopenbsd_cstrspn_alloca_true_valid_memsafety_true_termination_i____clock_t in openbsd_cstrspn-alloca_true-valid-memsafety_true-termination.i [2018-04-11 20:49:45,764 INFO L230 ultiparseSymbolTable]: Global variable declaration of __U_MULTI_fopenbsd_cstrspn_alloca_true_valid_memsafety_true_termination_i__clockid_t in openbsd_cstrspn-alloca_true-valid-memsafety_true-termination.i [2018-04-11 20:49:45,764 INFO L230 ultiparseSymbolTable]: Global variable declaration of __U_MULTI_fopenbsd_cstrspn_alloca_true_valid_memsafety_true_termination_i____uint8_t in openbsd_cstrspn-alloca_true-valid-memsafety_true-termination.i [2018-04-11 20:49:45,764 INFO L230 ultiparseSymbolTable]: Global variable declaration of __U_MULTI_fopenbsd_cstrspn_alloca_true_valid_memsafety_true_termination_i__u_int32_t in openbsd_cstrspn-alloca_true-valid-memsafety_true-termination.i [2018-04-11 20:49:45,764 INFO L230 ultiparseSymbolTable]: Global variable declaration of __U_MULTI_fopenbsd_cstrspn_alloca_true_valid_memsafety_true_termination_i____loff_t in openbsd_cstrspn-alloca_true-valid-memsafety_true-termination.i [2018-04-11 20:49:45,764 INFO L230 ultiparseSymbolTable]: Global variable declaration of __U_MULTI_fopenbsd_cstrspn_alloca_true_valid_memsafety_true_termination_i____pid_t in openbsd_cstrspn-alloca_true-valid-memsafety_true-termination.i [2018-04-11 20:49:45,764 INFO L230 ultiparseSymbolTable]: Global variable declaration of __U_MULTI_fopenbsd_cstrspn_alloca_true_valid_memsafety_true_termination_i____daddr_t in openbsd_cstrspn-alloca_true-valid-memsafety_true-termination.i [2018-04-11 20:49:45,765 INFO L230 ultiparseSymbolTable]: Global variable declaration of __U_MULTI_fopenbsd_cstrspn_alloca_true_valid_memsafety_true_termination_i__int64_t in openbsd_cstrspn-alloca_true-valid-memsafety_true-termination.i [2018-04-11 20:49:45,765 INFO L230 ultiparseSymbolTable]: Global variable declaration of __U_MULTI_fopenbsd_cstrspn_alloca_true_valid_memsafety_true_termination_i__pthread_condattr_t in openbsd_cstrspn-alloca_true-valid-memsafety_true-termination.i [2018-04-11 20:49:45,765 INFO L230 ultiparseSymbolTable]: Global variable declaration of __U_MULTI_fopenbsd_cstrspn_alloca_true_valid_memsafety_true_termination_i____blksize_t in openbsd_cstrspn-alloca_true-valid-memsafety_true-termination.i [2018-04-11 20:49:45,765 INFO L230 ultiparseSymbolTable]: Global variable declaration of __U_MULTI_fopenbsd_cstrspn_alloca_true_valid_memsafety_true_termination_i____gid_t in openbsd_cstrspn-alloca_true-valid-memsafety_true-termination.i [2018-04-11 20:49:45,765 INFO L230 ultiparseSymbolTable]: Global variable declaration of __U_MULTI_fopenbsd_cstrspn_alloca_true_valid_memsafety_true_termination_i____WAIT_STATUS in openbsd_cstrspn-alloca_true-valid-memsafety_true-termination.i [2018-04-11 20:49:45,765 INFO L230 ultiparseSymbolTable]: Global variable declaration of __U_MULTI_fopenbsd_cstrspn_alloca_true_valid_memsafety_true_termination_i__lldiv_t in openbsd_cstrspn-alloca_true-valid-memsafety_true-termination.i [2018-04-11 20:49:45,765 INFO L230 ultiparseSymbolTable]: Global variable declaration of __U_MULTI_fopenbsd_cstrspn_alloca_true_valid_memsafety_true_termination_i____dev_t in openbsd_cstrspn-alloca_true-valid-memsafety_true-termination.i [2018-04-11 20:49:45,765 INFO L230 ultiparseSymbolTable]: Global variable declaration of __U_MULTI_fopenbsd_cstrspn_alloca_true_valid_memsafety_true_termination_i__int16_t in openbsd_cstrspn-alloca_true-valid-memsafety_true-termination.i [2018-04-11 20:49:45,765 INFO L230 ultiparseSymbolTable]: Global variable declaration of __U_MULTI_fopenbsd_cstrspn_alloca_true_valid_memsafety_true_termination_i__uid_t in openbsd_cstrspn-alloca_true-valid-memsafety_true-termination.i [2018-04-11 20:49:45,765 INFO L230 ultiparseSymbolTable]: Global variable declaration of __U_MULTI_fopenbsd_cstrspn_alloca_true_valid_memsafety_true_termination_i____u_char in openbsd_cstrspn-alloca_true-valid-memsafety_true-termination.i [2018-04-11 20:49:45,765 INFO L230 ultiparseSymbolTable]: Global variable declaration of __U_MULTI_fopenbsd_cstrspn_alloca_true_valid_memsafety_true_termination_i____off64_t in openbsd_cstrspn-alloca_true-valid-memsafety_true-termination.i [2018-04-11 20:49:45,765 INFO L230 ultiparseSymbolTable]: Global variable declaration of __U_MULTI_fopenbsd_cstrspn_alloca_true_valid_memsafety_true_termination_i__fd_set in openbsd_cstrspn-alloca_true-valid-memsafety_true-termination.i [2018-04-11 20:49:45,765 INFO L230 ultiparseSymbolTable]: Global variable declaration of __U_MULTI_fopenbsd_cstrspn_alloca_true_valid_memsafety_true_termination_i__pthread_attr_t in openbsd_cstrspn-alloca_true-valid-memsafety_true-termination.i [2018-04-11 20:49:45,765 INFO L230 ultiparseSymbolTable]: Global variable declaration of __U_MULTI_fopenbsd_cstrspn_alloca_true_valid_memsafety_true_termination_i____caddr_t in openbsd_cstrspn-alloca_true-valid-memsafety_true-termination.i [2018-04-11 20:49:45,765 INFO L230 ultiparseSymbolTable]: Global variable declaration of __U_MULTI_fopenbsd_cstrspn_alloca_true_valid_memsafety_true_termination_i__wchar_t in openbsd_cstrspn-alloca_true-valid-memsafety_true-termination.i [2018-04-11 20:49:45,766 INFO L230 ultiparseSymbolTable]: Global variable declaration of __U_MULTI_fopenbsd_cstrspn_alloca_true_valid_memsafety_true_termination_i__caddr_t in openbsd_cstrspn-alloca_true-valid-memsafety_true-termination.i [2018-04-11 20:49:45,766 INFO L230 ultiparseSymbolTable]: Global variable declaration of __U_MULTI_fopenbsd_cstrspn_alloca_true_valid_memsafety_true_termination_i__u_int16_t in openbsd_cstrspn-alloca_true-valid-memsafety_true-termination.i [2018-04-11 20:49:45,766 INFO L230 ultiparseSymbolTable]: Global variable declaration of __U_MULTI_fopenbsd_cstrspn_alloca_true_valid_memsafety_true_termination_i__pthread_cond_t in openbsd_cstrspn-alloca_true-valid-memsafety_true-termination.i [2018-04-11 20:49:45,766 INFO L230 ultiparseSymbolTable]: Global variable declaration of __U_MULTI_fopenbsd_cstrspn_alloca_true_valid_memsafety_true_termination_i__ulong in openbsd_cstrspn-alloca_true-valid-memsafety_true-termination.i [2018-04-11 20:49:45,766 INFO L230 ultiparseSymbolTable]: Global variable declaration of __U_MULTI_fopenbsd_cstrspn_alloca_true_valid_memsafety_true_termination_i____sigset_t in openbsd_cstrspn-alloca_true-valid-memsafety_true-termination.i [2018-04-11 20:49:45,766 INFO L230 ultiparseSymbolTable]: Global variable declaration of __U_MULTI_fopenbsd_cstrspn_alloca_true_valid_memsafety_true_termination_i____pthread_list_t in openbsd_cstrspn-alloca_true-valid-memsafety_true-termination.i [2018-04-11 20:49:45,766 INFO L230 ultiparseSymbolTable]: Global variable declaration of __U_MULTI_fopenbsd_cstrspn_alloca_true_valid_memsafety_true_termination_i____clockid_t in openbsd_cstrspn-alloca_true-valid-memsafety_true-termination.i [2018-04-11 20:49:45,766 INFO L230 ultiparseSymbolTable]: Global variable declaration of __U_MULTI_fopenbsd_cstrspn_alloca_true_valid_memsafety_true_termination_i__u_char in openbsd_cstrspn-alloca_true-valid-memsafety_true-termination.i [2018-04-11 20:49:45,766 INFO L230 ultiparseSymbolTable]: Global variable declaration of __U_MULTI_fopenbsd_cstrspn_alloca_true_valid_memsafety_true_termination_i__quad_t in openbsd_cstrspn-alloca_true-valid-memsafety_true-termination.i [2018-04-11 20:49:45,766 INFO L230 ultiparseSymbolTable]: Global variable declaration of __U_MULTI_fopenbsd_cstrspn_alloca_true_valid_memsafety_true_termination_i__blkcnt_t in openbsd_cstrspn-alloca_true-valid-memsafety_true-termination.i [2018-04-11 20:49:45,766 INFO L230 ultiparseSymbolTable]: Global variable declaration of __U_MULTI_fopenbsd_cstrspn_alloca_true_valid_memsafety_true_termination_i__size_t in openbsd_cstrspn-alloca_true-valid-memsafety_true-termination.i [2018-04-11 20:49:45,767 INFO L230 ultiparseSymbolTable]: Global variable declaration of __U_MULTI_fopenbsd_cstrspn_alloca_true_valid_memsafety_true_termination_i__off_t in openbsd_cstrspn-alloca_true-valid-memsafety_true-termination.i [2018-04-11 20:49:45,767 INFO L230 ultiparseSymbolTable]: Global variable declaration of __U_MULTI_fopenbsd_cstrspn_alloca_true_valid_memsafety_true_termination_i__u_short in openbsd_cstrspn-alloca_true-valid-memsafety_true-termination.i [2018-04-11 20:49:45,767 INFO L230 ultiparseSymbolTable]: Global variable declaration of __U_MULTI_fopenbsd_cstrspn_alloca_true_valid_memsafety_true_termination_i____int16_t in openbsd_cstrspn-alloca_true-valid-memsafety_true-termination.i [2018-04-11 20:49:45,767 INFO L230 ultiparseSymbolTable]: Global variable declaration of __U_MULTI_fopenbsd_cstrspn_alloca_true_valid_memsafety_true_termination_i__div_t in openbsd_cstrspn-alloca_true-valid-memsafety_true-termination.i [2018-04-11 20:49:45,767 INFO L230 ultiparseSymbolTable]: Global variable declaration of __U_MULTI_fopenbsd_cstrspn_alloca_true_valid_memsafety_true_termination_i__pthread_once_t in openbsd_cstrspn-alloca_true-valid-memsafety_true-termination.i [2018-04-11 20:49:45,767 INFO L230 ultiparseSymbolTable]: Global variable declaration of __U_MULTI_fopenbsd_cstrspn_alloca_true_valid_memsafety_true_termination_i____intptr_t in openbsd_cstrspn-alloca_true-valid-memsafety_true-termination.i [2018-04-11 20:49:45,767 INFO L230 ultiparseSymbolTable]: Global variable declaration of __U_MULTI_fopenbsd_cstrspn_alloca_true_valid_memsafety_true_termination_i____ino_t in openbsd_cstrspn-alloca_true-valid-memsafety_true-termination.i [2018-04-11 20:49:45,767 INFO L230 ultiparseSymbolTable]: Global variable declaration of __U_MULTI_fopenbsd_cstrspn_alloca_true_valid_memsafety_true_termination_i____uint32_t in openbsd_cstrspn-alloca_true-valid-memsafety_true-termination.i [2018-04-11 20:49:45,767 INFO L230 ultiparseSymbolTable]: Global variable declaration of __U_MULTI_fopenbsd_cstrspn_alloca_true_valid_memsafety_true_termination_i____u_long in openbsd_cstrspn-alloca_true-valid-memsafety_true-termination.i [2018-04-11 20:49:45,768 INFO L230 ultiparseSymbolTable]: Global variable declaration of __U_MULTI_fopenbsd_cstrspn_alloca_true_valid_memsafety_true_termination_i____mode_t in openbsd_cstrspn-alloca_true-valid-memsafety_true-termination.i [2018-04-11 20:49:45,768 INFO L230 ultiparseSymbolTable]: Global variable declaration of __U_MULTI_fopenbsd_cstrspn_alloca_true_valid_memsafety_true_termination_i__blksize_t in openbsd_cstrspn-alloca_true-valid-memsafety_true-termination.i [2018-04-11 20:49:45,768 INFO L230 ultiparseSymbolTable]: Global variable declaration of __U_MULTI_fopenbsd_cstrspn_alloca_true_valid_memsafety_true_termination_i__pthread_spinlock_t in openbsd_cstrspn-alloca_true-valid-memsafety_true-termination.i [2018-04-11 20:49:45,788 INFO L330 CDTParser]: Deleted temporary CDT project at /storage/ultimate/releaseScripts/default/UAutomizer-linux/data/FLAGa2151b590 [2018-04-11 20:49:45,793 INFO L304 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2018-04-11 20:49:45,796 INFO L131 ToolchainWalker]: Walking toolchain with 4 elements. [2018-04-11 20:49:45,797 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2018-04-11 20:49:45,797 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2018-04-11 20:49:45,804 INFO L276 PluginConnector]: CACSL2BoogieTranslator initialized [2018-04-11 20:49:45,805 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 11.04 08:49:45" (1/1) ... [2018-04-11 20:49:45,808 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@7a43c838 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 11.04 08:49:45, skipping insertion in model container [2018-04-11 20:49:45,808 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 11.04 08:49:45" (1/1) ... [2018-04-11 20:49:45,828 INFO L167 Dispatcher]: Using SV-COMP mode [2018-04-11 20:49:45,858 INFO L167 Dispatcher]: Using SV-COMP mode [2018-04-11 20:49:46,053 INFO L175 PostProcessor]: Settings: Checked method=main [2018-04-11 20:49:46,099 INFO L175 PostProcessor]: Settings: Checked method=main [2018-04-11 20:49:46,107 INFO L100 SccComputation]: Graph consists of 0 InCaSumBalls and 112 non ball SCCs. Number of states in SCCs 112. [2018-04-11 20:49:46,154 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 11.04 08:49:46 WrapperNode [2018-04-11 20:49:46,154 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2018-04-11 20:49:46,155 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2018-04-11 20:49:46,155 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2018-04-11 20:49:46,155 INFO L276 PluginConnector]: Boogie Preprocessor initialized [2018-04-11 20:49:46,171 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 11.04 08:49:46" (1/1) ... [2018-04-11 20:49:46,171 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 11.04 08:49:46" (1/1) ... [2018-04-11 20:49:46,189 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 11.04 08:49:46" (1/1) ... [2018-04-11 20:49:46,189 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 11.04 08:49:46" (1/1) ... [2018-04-11 20:49:46,203 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 11.04 08:49:46" (1/1) ... [2018-04-11 20:49:46,210 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 11.04 08:49:46" (1/1) ... [2018-04-11 20:49:46,212 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 11.04 08:49:46" (1/1) ... [2018-04-11 20:49:46,218 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2018-04-11 20:49:46,218 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2018-04-11 20:49:46,218 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2018-04-11 20:49:46,219 INFO L276 PluginConnector]: RCFGBuilder initialized [2018-04-11 20:49:46,220 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 11.04 08:49:46" (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 20:49:46,359 INFO L136 BoogieDeclarations]: Found implementation of procedure ULTIMATE.init [2018-04-11 20:49:46,359 INFO L136 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2018-04-11 20:49:46,359 INFO L136 BoogieDeclarations]: Found implementation of procedure __U_MULTI_fopenbsd_cstrspn_alloca_true_valid_memsafety_true_termination_i____bswap_32 [2018-04-11 20:49:46,359 INFO L136 BoogieDeclarations]: Found implementation of procedure __U_MULTI_fopenbsd_cstrspn_alloca_true_valid_memsafety_true_termination_i____bswap_64 [2018-04-11 20:49:46,359 INFO L136 BoogieDeclarations]: Found implementation of procedure __U_MULTI_fopenbsd_cstrspn_alloca_true_valid_memsafety_true_termination_i__cstrspn [2018-04-11 20:49:46,359 INFO L136 BoogieDeclarations]: Found implementation of procedure main [2018-04-11 20:49:46,359 INFO L128 BoogieDeclarations]: Found specification of procedure __U_MULTI_fopenbsd_cstrspn_alloca_true_valid_memsafety_true_termination_i____bswap_32 [2018-04-11 20:49:46,360 INFO L128 BoogieDeclarations]: Found specification of procedure __U_MULTI_fopenbsd_cstrspn_alloca_true_valid_memsafety_true_termination_i____bswap_64 [2018-04-11 20:49:46,360 INFO L128 BoogieDeclarations]: Found specification of procedure __ctype_get_mb_cur_max [2018-04-11 20:49:46,360 INFO L128 BoogieDeclarations]: Found specification of procedure atof [2018-04-11 20:49:46,360 INFO L128 BoogieDeclarations]: Found specification of procedure atoi [2018-04-11 20:49:46,360 INFO L128 BoogieDeclarations]: Found specification of procedure atol [2018-04-11 20:49:46,360 INFO L128 BoogieDeclarations]: Found specification of procedure atoll [2018-04-11 20:49:46,360 INFO L128 BoogieDeclarations]: Found specification of procedure strtod [2018-04-11 20:49:46,360 INFO L128 BoogieDeclarations]: Found specification of procedure strtof [2018-04-11 20:49:46,360 INFO L128 BoogieDeclarations]: Found specification of procedure strtold [2018-04-11 20:49:46,360 INFO L128 BoogieDeclarations]: Found specification of procedure strtol [2018-04-11 20:49:46,360 INFO L128 BoogieDeclarations]: Found specification of procedure strtoul [2018-04-11 20:49:46,361 INFO L128 BoogieDeclarations]: Found specification of procedure strtoq [2018-04-11 20:49:46,361 INFO L128 BoogieDeclarations]: Found specification of procedure strtouq [2018-04-11 20:49:46,361 INFO L128 BoogieDeclarations]: Found specification of procedure strtoll [2018-04-11 20:49:46,361 INFO L128 BoogieDeclarations]: Found specification of procedure strtoull [2018-04-11 20:49:46,361 INFO L128 BoogieDeclarations]: Found specification of procedure l64a [2018-04-11 20:49:46,361 INFO L128 BoogieDeclarations]: Found specification of procedure a64l [2018-04-11 20:49:46,361 INFO L128 BoogieDeclarations]: Found specification of procedure select [2018-04-11 20:49:46,361 INFO L128 BoogieDeclarations]: Found specification of procedure pselect [2018-04-11 20:49:46,361 INFO L128 BoogieDeclarations]: Found specification of procedure gnu_dev_major [2018-04-11 20:49:46,361 INFO L128 BoogieDeclarations]: Found specification of procedure gnu_dev_minor [2018-04-11 20:49:46,361 INFO L128 BoogieDeclarations]: Found specification of procedure gnu_dev_makedev [2018-04-11 20:49:46,361 INFO L128 BoogieDeclarations]: Found specification of procedure random [2018-04-11 20:49:46,362 INFO L128 BoogieDeclarations]: Found specification of procedure srandom [2018-04-11 20:49:46,362 INFO L128 BoogieDeclarations]: Found specification of procedure initstate [2018-04-11 20:49:46,362 INFO L128 BoogieDeclarations]: Found specification of procedure setstate [2018-04-11 20:49:46,362 INFO L128 BoogieDeclarations]: Found specification of procedure random_r [2018-04-11 20:49:46,362 INFO L128 BoogieDeclarations]: Found specification of procedure srandom_r [2018-04-11 20:49:46,362 INFO L128 BoogieDeclarations]: Found specification of procedure initstate_r [2018-04-11 20:49:46,362 INFO L128 BoogieDeclarations]: Found specification of procedure setstate_r [2018-04-11 20:49:46,362 INFO L128 BoogieDeclarations]: Found specification of procedure rand [2018-04-11 20:49:46,362 INFO L128 BoogieDeclarations]: Found specification of procedure srand [2018-04-11 20:49:46,363 INFO L128 BoogieDeclarations]: Found specification of procedure rand_r [2018-04-11 20:49:46,363 INFO L128 BoogieDeclarations]: Found specification of procedure drand48 [2018-04-11 20:49:46,363 INFO L128 BoogieDeclarations]: Found specification of procedure erand48 [2018-04-11 20:49:46,363 INFO L128 BoogieDeclarations]: Found specification of procedure lrand48 [2018-04-11 20:49:46,363 INFO L128 BoogieDeclarations]: Found specification of procedure nrand48 [2018-04-11 20:49:46,363 INFO L128 BoogieDeclarations]: Found specification of procedure mrand48 [2018-04-11 20:49:46,363 INFO L128 BoogieDeclarations]: Found specification of procedure jrand48 [2018-04-11 20:49:46,363 INFO L128 BoogieDeclarations]: Found specification of procedure srand48 [2018-04-11 20:49:46,364 INFO L128 BoogieDeclarations]: Found specification of procedure seed48 [2018-04-11 20:49:46,364 INFO L128 BoogieDeclarations]: Found specification of procedure lcong48 [2018-04-11 20:49:46,364 INFO L128 BoogieDeclarations]: Found specification of procedure drand48_r [2018-04-11 20:49:46,364 INFO L128 BoogieDeclarations]: Found specification of procedure erand48_r [2018-04-11 20:49:46,364 INFO L128 BoogieDeclarations]: Found specification of procedure lrand48_r [2018-04-11 20:49:46,364 INFO L128 BoogieDeclarations]: Found specification of procedure nrand48_r [2018-04-11 20:49:46,364 INFO L128 BoogieDeclarations]: Found specification of procedure mrand48_r [2018-04-11 20:49:46,365 INFO L128 BoogieDeclarations]: Found specification of procedure jrand48_r [2018-04-11 20:49:46,365 INFO L128 BoogieDeclarations]: Found specification of procedure srand48_r [2018-04-11 20:49:46,365 INFO L128 BoogieDeclarations]: Found specification of procedure seed48_r [2018-04-11 20:49:46,365 INFO L128 BoogieDeclarations]: Found specification of procedure lcong48_r [2018-04-11 20:49:46,365 INFO L128 BoogieDeclarations]: Found specification of procedure malloc [2018-04-11 20:49:46,365 INFO L128 BoogieDeclarations]: Found specification of procedure calloc [2018-04-11 20:49:46,365 INFO L128 BoogieDeclarations]: Found specification of procedure realloc [2018-04-11 20:49:46,365 INFO L128 BoogieDeclarations]: Found specification of procedure free [2018-04-11 20:49:46,366 INFO L128 BoogieDeclarations]: Found specification of procedure cfree [2018-04-11 20:49:46,366 INFO L128 BoogieDeclarations]: Found specification of procedure alloca [2018-04-11 20:49:46,366 INFO L128 BoogieDeclarations]: Found specification of procedure valloc [2018-04-11 20:49:46,366 INFO L128 BoogieDeclarations]: Found specification of procedure posix_memalign [2018-04-11 20:49:46,366 INFO L128 BoogieDeclarations]: Found specification of procedure abort [2018-04-11 20:49:46,366 INFO L128 BoogieDeclarations]: Found specification of procedure atexit [2018-04-11 20:49:46,366 INFO L128 BoogieDeclarations]: Found specification of procedure on_exit [2018-04-11 20:49:46,366 INFO L128 BoogieDeclarations]: Found specification of procedure exit [2018-04-11 20:49:46,367 INFO L128 BoogieDeclarations]: Found specification of procedure _Exit [2018-04-11 20:49:46,367 INFO L128 BoogieDeclarations]: Found specification of procedure getenv [2018-04-11 20:49:46,367 INFO L128 BoogieDeclarations]: Found specification of procedure putenv [2018-04-11 20:49:46,367 INFO L128 BoogieDeclarations]: Found specification of procedure setenv [2018-04-11 20:49:46,367 INFO L128 BoogieDeclarations]: Found specification of procedure unsetenv [2018-04-11 20:49:46,367 INFO L128 BoogieDeclarations]: Found specification of procedure clearenv [2018-04-11 20:49:46,367 INFO L128 BoogieDeclarations]: Found specification of procedure mktemp [2018-04-11 20:49:46,367 INFO L128 BoogieDeclarations]: Found specification of procedure mkstemp [2018-04-11 20:49:46,368 INFO L128 BoogieDeclarations]: Found specification of procedure mkstemps [2018-04-11 20:49:46,368 INFO L128 BoogieDeclarations]: Found specification of procedure mkdtemp [2018-04-11 20:49:46,368 INFO L128 BoogieDeclarations]: Found specification of procedure system [2018-04-11 20:49:46,368 INFO L128 BoogieDeclarations]: Found specification of procedure realpath [2018-04-11 20:49:46,368 INFO L128 BoogieDeclarations]: Found specification of procedure bsearch [2018-04-11 20:49:46,368 INFO L128 BoogieDeclarations]: Found specification of procedure qsort [2018-04-11 20:49:46,368 INFO L128 BoogieDeclarations]: Found specification of procedure abs [2018-04-11 20:49:46,368 INFO L128 BoogieDeclarations]: Found specification of procedure labs [2018-04-11 20:49:46,369 INFO L128 BoogieDeclarations]: Found specification of procedure llabs [2018-04-11 20:49:46,369 INFO L128 BoogieDeclarations]: Found specification of procedure div [2018-04-11 20:49:46,369 INFO L128 BoogieDeclarations]: Found specification of procedure ldiv [2018-04-11 20:49:46,369 INFO L128 BoogieDeclarations]: Found specification of procedure lldiv [2018-04-11 20:49:46,369 INFO L128 BoogieDeclarations]: Found specification of procedure ecvt [2018-04-11 20:49:46,369 INFO L128 BoogieDeclarations]: Found specification of procedure fcvt [2018-04-11 20:49:46,369 INFO L128 BoogieDeclarations]: Found specification of procedure gcvt [2018-04-11 20:49:46,369 INFO L128 BoogieDeclarations]: Found specification of procedure qecvt [2018-04-11 20:49:46,370 INFO L128 BoogieDeclarations]: Found specification of procedure qfcvt [2018-04-11 20:49:46,370 INFO L128 BoogieDeclarations]: Found specification of procedure qgcvt [2018-04-11 20:49:46,370 INFO L128 BoogieDeclarations]: Found specification of procedure ecvt_r [2018-04-11 20:49:46,370 INFO L128 BoogieDeclarations]: Found specification of procedure fcvt_r [2018-04-11 20:49:46,370 INFO L128 BoogieDeclarations]: Found specification of procedure qecvt_r [2018-04-11 20:49:46,370 INFO L128 BoogieDeclarations]: Found specification of procedure qfcvt_r [2018-04-11 20:49:46,370 INFO L128 BoogieDeclarations]: Found specification of procedure mblen [2018-04-11 20:49:46,371 INFO L128 BoogieDeclarations]: Found specification of procedure mbtowc [2018-04-11 20:49:46,371 INFO L128 BoogieDeclarations]: Found specification of procedure wctomb [2018-04-11 20:49:46,371 INFO L128 BoogieDeclarations]: Found specification of procedure mbstowcs [2018-04-11 20:49:46,371 INFO L128 BoogieDeclarations]: Found specification of procedure wcstombs [2018-04-11 20:49:46,371 INFO L128 BoogieDeclarations]: Found specification of procedure rpmatch [2018-04-11 20:49:46,371 INFO L128 BoogieDeclarations]: Found specification of procedure getsubopt [2018-04-11 20:49:46,371 INFO L128 BoogieDeclarations]: Found specification of procedure getloadavg [2018-04-11 20:49:46,371 INFO L128 BoogieDeclarations]: Found specification of procedure __VERIFIER_nondet_int [2018-04-11 20:49:46,371 INFO L128 BoogieDeclarations]: Found specification of procedure __U_MULTI_fopenbsd_cstrspn_alloca_true_valid_memsafety_true_termination_i__cstrspn [2018-04-11 20:49:46,372 INFO L128 BoogieDeclarations]: Found specification of procedure read~int [2018-04-11 20:49:46,372 INFO L128 BoogieDeclarations]: Found specification of procedure main [2018-04-11 20:49:46,372 INFO L128 BoogieDeclarations]: Found specification of procedure #Ultimate.alloc [2018-04-11 20:49:46,372 INFO L128 BoogieDeclarations]: Found specification of procedure write~int [2018-04-11 20:49:46,372 INFO L128 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2018-04-11 20:49:46,372 INFO L128 BoogieDeclarations]: Found specification of procedure ULTIMATE.init [2018-04-11 20:49:46,372 INFO L128 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2018-04-11 20:49:46,372 INFO L128 BoogieDeclarations]: Found specification of procedure write~unchecked~int [2018-04-11 20:49:46,693 INFO L259 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2018-04-11 20:49:46,694 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 11.04 08:49:46 BoogieIcfgContainer [2018-04-11 20:49:46,694 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2018-04-11 20:49:46,695 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2018-04-11 20:49:46,695 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2018-04-11 20:49:46,698 INFO L276 PluginConnector]: TraceAbstraction initialized [2018-04-11 20:49:46,699 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 11.04 08:49:45" (1/3) ... [2018-04-11 20:49:46,699 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@467f545f and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 11.04 08:49:46, skipping insertion in model container [2018-04-11 20:49:46,700 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 11.04 08:49:46" (2/3) ... [2018-04-11 20:49:46,700 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@467f545f and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 11.04 08:49:46, skipping insertion in model container [2018-04-11 20:49:46,700 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 11.04 08:49:46" (3/3) ... [2018-04-11 20:49:46,703 INFO L107 eAbstractionObserver]: Analyzing ICFG openbsd_cstrspn-alloca_true-valid-memsafety_true-termination.i [2018-04-11 20:49:46,713 INFO L131 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2018-04-11 20:49:46,721 INFO L143 ceAbstractionStarter]: Appying trace abstraction to program that has 9 error locations. [2018-04-11 20:49:46,764 INFO L128 ementStrategyFactory]: Using default assertion order modulation [2018-04-11 20:49:46,765 INFO L369 AbstractCegarLoop]: Interprodecural is true [2018-04-11 20:49:46,765 INFO L370 AbstractCegarLoop]: Hoare is true [2018-04-11 20:49:46,765 INFO L371 AbstractCegarLoop]: Compute interpolants for FPandBP [2018-04-11 20:49:46,765 INFO L372 AbstractCegarLoop]: Backedges is TWOTRACK [2018-04-11 20:49:46,765 INFO L373 AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2018-04-11 20:49:46,765 INFO L374 AbstractCegarLoop]: Difference is false [2018-04-11 20:49:46,765 INFO L375 AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA [2018-04-11 20:49:46,766 INFO L380 AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == AllErrorsAtOnce======== [2018-04-11 20:49:46,766 INFO L87 2NestedWordAutomaton]: Mode: main mode - execution starts in main procedure [2018-04-11 20:49:46,778 INFO L276 IsEmpty]: Start isEmpty. Operand 69 states. [2018-04-11 20:49:46,783 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 20 [2018-04-11 20:49:46,783 INFO L347 BasicCegarLoop]: Found error trace [2018-04-11 20:49:46,783 INFO L355 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2018-04-11 20:49:46,784 INFO L408 AbstractCegarLoop]: === Iteration 1 === [__U_MULTI_fopenbsd_cstrspn_alloca_true_valid_memsafety_true_termination_i__cstrspnErr1RequiresViolation, __U_MULTI_fopenbsd_cstrspn_alloca_true_valid_memsafety_true_termination_i__cstrspnErr3RequiresViolation, __U_MULTI_fopenbsd_cstrspn_alloca_true_valid_memsafety_true_termination_i__cstrspnErr2RequiresViolation, __U_MULTI_fopenbsd_cstrspn_alloca_true_valid_memsafety_true_termination_i__cstrspnErr0RequiresViolation, mainErr3RequiresViolation, mainErr1RequiresViolation, mainErr2RequiresViolation, mainErr4EnsuresViolationMEMORY_LEAK, mainErr0RequiresViolation]=== [2018-04-11 20:49:46,787 INFO L82 PathProgramCache]: Analyzing trace with hash 1416876498, 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 20:49:46,799 INFO L68 tionRefinementEngine]: Using refinement strategy FixedRefinementStrategy [2018-04-11 20:49:46,827 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-04-11 20:49:46,835 INFO L270 TraceCheckSpWp]: Computing forward predicates... [2018-04-11 20:49:46,876 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 20:49:46,877 INFO L267 ElimStorePlain]: Start of recursive call 2: End of recursive call: and 1 xjuncts. [2018-04-11 20:49:46,881 INFO L267 ElimStorePlain]: Start of recursive call 1: 1 dim-1 vars, End of recursive call: and 1 xjuncts. [2018-04-11 20:49:46,881 INFO L202 ElimStorePlain]: Needed 2 recursive calls to eliminate 1 variables, input treesize:6, output treesize:5 [2018-04-11 20:49:46,904 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 20:49:46,904 INFO L267 ElimStorePlain]: Start of recursive call 2: End of recursive call: and 1 xjuncts. [2018-04-11 20:49:46,911 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 20:49:46,912 INFO L202 ElimStorePlain]: Needed 2 recursive calls to eliminate 2 variables, input treesize:12, output treesize:11 [2018-04-11 20:49:46,925 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 20:49:46,925 INFO L314 TraceCheckSpWp]: Computing backward predicates... [2018-04-11 20:49:46,949 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 20:49:46,972 INFO L320 seRefinementStrategy]: Constructing automaton from 2 perfect and 0 imperfect interpolant sequences. [2018-04-11 20:49:46,973 INFO L335 seRefinementStrategy]: Number of different interpolants: perfect sequences [3, 3] imperfect sequences [] total 3 [2018-04-11 20:49:46,974 INFO L442 AbstractCegarLoop]: Interpolant automaton has 4 states [2018-04-11 20:49:46,984 INFO L132 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2018-04-11 20:49:46,984 INFO L133 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2018-04-11 20:49:46,986 INFO L87 Difference]: Start difference. First operand 69 states. Second operand 4 states. [2018-04-11 20:49:47,087 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-04-11 20:49:47,087 INFO L93 Difference]: Finished difference Result 83 states and 86 transitions. [2018-04-11 20:49:47,088 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2018-04-11 20:49:47,089 INFO L78 Accepts]: Start accepts. Automaton has 4 states. Word has length 19 [2018-04-11 20:49:47,090 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-04-11 20:49:47,101 INFO L225 Difference]: With dead ends: 83 [2018-04-11 20:49:47,101 INFO L226 Difference]: Without dead ends: 65 [2018-04-11 20:49:47,105 INFO L567 BasicCegarLoop]: 0 DeclaredPredicates, 38 GetRequests, 33 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 20:49:47,123 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 65 states. [2018-04-11 20:49:47,141 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 65 to 65. [2018-04-11 20:49:47,142 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 65 states. [2018-04-11 20:49:47,144 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 65 states to 65 states and 68 transitions. [2018-04-11 20:49:47,145 INFO L78 Accepts]: Start accepts. Automaton has 65 states and 68 transitions. Word has length 19 [2018-04-11 20:49:47,145 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-04-11 20:49:47,145 INFO L459 AbstractCegarLoop]: Abstraction has 65 states and 68 transitions. [2018-04-11 20:49:47,145 INFO L460 AbstractCegarLoop]: Interpolant automaton has 4 states. [2018-04-11 20:49:47,146 INFO L276 IsEmpty]: Start isEmpty. Operand 65 states and 68 transitions. [2018-04-11 20:49:47,146 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 20 [2018-04-11 20:49:47,146 INFO L347 BasicCegarLoop]: Found error trace [2018-04-11 20:49:47,146 INFO L355 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2018-04-11 20:49:47,146 INFO L408 AbstractCegarLoop]: === Iteration 2 === [__U_MULTI_fopenbsd_cstrspn_alloca_true_valid_memsafety_true_termination_i__cstrspnErr1RequiresViolation, __U_MULTI_fopenbsd_cstrspn_alloca_true_valid_memsafety_true_termination_i__cstrspnErr3RequiresViolation, __U_MULTI_fopenbsd_cstrspn_alloca_true_valid_memsafety_true_termination_i__cstrspnErr2RequiresViolation, __U_MULTI_fopenbsd_cstrspn_alloca_true_valid_memsafety_true_termination_i__cstrspnErr0RequiresViolation, mainErr3RequiresViolation, mainErr1RequiresViolation, mainErr2RequiresViolation, mainErr4EnsuresViolationMEMORY_LEAK, mainErr0RequiresViolation]=== [2018-04-11 20:49:47,147 INFO L82 PathProgramCache]: Analyzing trace with hash 1416876499, 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 20:49:47,153 INFO L68 tionRefinementEngine]: Using refinement strategy FixedRefinementStrategy [2018-04-11 20:49:47,167 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-04-11 20:49:47,169 INFO L270 TraceCheckSpWp]: Computing forward predicates... [2018-04-11 20:49:47,180 INFO L477 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 6 treesize of output 5 [2018-04-11 20:49:47,180 INFO L267 ElimStorePlain]: Start of recursive call 2: End of recursive call: and 1 xjuncts. [2018-04-11 20:49:47,199 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 20:49:47,200 INFO L267 ElimStorePlain]: Start of recursive call 3: End of recursive call: and 1 xjuncts. [2018-04-11 20:49:47,205 INFO L267 ElimStorePlain]: Start of recursive call 1: 2 dim-1 vars, End of recursive call: and 1 xjuncts. [2018-04-11 20:49:47,206 INFO L202 ElimStorePlain]: Needed 3 recursive calls to eliminate 2 variables, input treesize:19, output treesize:17 [2018-04-11 20:49:47,233 INFO L700 Elim1Store]: detected not equals via solver [2018-04-11 20:49:47,247 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 20:49:47,248 INFO L267 ElimStorePlain]: Start of recursive call 2: End of recursive call: and 1 xjuncts. [2018-04-11 20:49:47,263 INFO L700 Elim1Store]: detected not equals via solver [2018-04-11 20:49:47,264 INFO L700 Elim1Store]: detected not equals via solver [2018-04-11 20:49:47,264 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 20:49:47,265 INFO L267 ElimStorePlain]: Start of recursive call 3: End of recursive call: and 1 xjuncts. [2018-04-11 20:49:47,288 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 20:49:47,288 INFO L202 ElimStorePlain]: Needed 3 recursive calls to eliminate 4 variables, input treesize:28, output treesize:12 [2018-04-11 20:49:47,329 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 20:49:47,329 INFO L314 TraceCheckSpWp]: Computing backward predicates... [2018-04-11 20:49:51,485 WARN L148 SmtUtils]: Spent 4079ms on a formula simplification that was a NOOP. DAG size: 26 [2018-04-11 20:49:51,495 INFO L267 ElimStorePlain]: Start of recursive call 1: End of recursive call: and 1 xjuncts. [2018-04-11 20:49:51,495 INFO L202 ElimStorePlain]: Needed 1 recursive calls to eliminate 5 variables, input treesize:25, output treesize:3 [2018-04-11 20:49:51,501 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 20:49:51,520 INFO L320 seRefinementStrategy]: Constructing automaton from 2 perfect and 0 imperfect interpolant sequences. [2018-04-11 20:49:51,520 INFO L335 seRefinementStrategy]: Number of different interpolants: perfect sequences [5, 5] imperfect sequences [] total 8 [2018-04-11 20:49:51,521 INFO L442 AbstractCegarLoop]: Interpolant automaton has 9 states [2018-04-11 20:49:51,521 INFO L132 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2018-04-11 20:49:51,522 INFO L133 InterpolantAutomaton]: CoverageRelationStatistics Valid=23, Invalid=49, Unknown=0, NotChecked=0, Total=72 [2018-04-11 20:49:51,522 INFO L87 Difference]: Start difference. First operand 65 states and 68 transitions. Second operand 9 states. [2018-04-11 20:49:51,631 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-04-11 20:49:51,631 INFO L93 Difference]: Finished difference Result 65 states and 68 transitions. [2018-04-11 20:49:51,631 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2018-04-11 20:49:51,632 INFO L78 Accepts]: Start accepts. Automaton has 9 states. Word has length 19 [2018-04-11 20:49:51,632 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-04-11 20:49:51,633 INFO L225 Difference]: With dead ends: 65 [2018-04-11 20:49:51,633 INFO L226 Difference]: Without dead ends: 64 [2018-04-11 20:49:51,634 INFO L567 BasicCegarLoop]: 0 DeclaredPredicates, 38 GetRequests, 30 SyntacticMatches, 0 SemanticMatches, 8 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 13 ImplicationChecksByTransitivity, 4.2s TimeCoverageRelationStatistics Valid=32, Invalid=58, Unknown=0, NotChecked=0, Total=90 [2018-04-11 20:49:51,634 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 64 states. [2018-04-11 20:49:51,638 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 64 to 64. [2018-04-11 20:49:51,639 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 64 states. [2018-04-11 20:49:51,640 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 64 states to 64 states and 67 transitions. [2018-04-11 20:49:51,640 INFO L78 Accepts]: Start accepts. Automaton has 64 states and 67 transitions. Word has length 19 [2018-04-11 20:49:51,640 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-04-11 20:49:51,640 INFO L459 AbstractCegarLoop]: Abstraction has 64 states and 67 transitions. [2018-04-11 20:49:51,640 INFO L460 AbstractCegarLoop]: Interpolant automaton has 9 states. [2018-04-11 20:49:51,641 INFO L276 IsEmpty]: Start isEmpty. Operand 64 states and 67 transitions. [2018-04-11 20:49:51,641 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 21 [2018-04-11 20:49:51,641 INFO L347 BasicCegarLoop]: Found error trace [2018-04-11 20:49:51,641 INFO L355 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2018-04-11 20:49:51,641 INFO L408 AbstractCegarLoop]: === Iteration 3 === [__U_MULTI_fopenbsd_cstrspn_alloca_true_valid_memsafety_true_termination_i__cstrspnErr1RequiresViolation, __U_MULTI_fopenbsd_cstrspn_alloca_true_valid_memsafety_true_termination_i__cstrspnErr3RequiresViolation, __U_MULTI_fopenbsd_cstrspn_alloca_true_valid_memsafety_true_termination_i__cstrspnErr2RequiresViolation, __U_MULTI_fopenbsd_cstrspn_alloca_true_valid_memsafety_true_termination_i__cstrspnErr0RequiresViolation, mainErr3RequiresViolation, mainErr1RequiresViolation, mainErr2RequiresViolation, mainErr4EnsuresViolationMEMORY_LEAK, mainErr0RequiresViolation]=== [2018-04-11 20:49:51,642 INFO L82 PathProgramCache]: Analyzing trace with hash 973498482, 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 20:49:51,661 INFO L68 tionRefinementEngine]: Using refinement strategy FixedRefinementStrategy [2018-04-11 20:49:51,677 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-04-11 20:49:51,679 INFO L270 TraceCheckSpWp]: Computing forward predicates... [2018-04-11 20:49:51,686 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 20:49:51,687 INFO L267 ElimStorePlain]: Start of recursive call 2: End of recursive call: and 1 xjuncts. [2018-04-11 20:49:51,689 INFO L267 ElimStorePlain]: Start of recursive call 1: 1 dim-1 vars, End of recursive call: and 1 xjuncts. [2018-04-11 20:49:51,689 INFO L202 ElimStorePlain]: Needed 2 recursive calls to eliminate 1 variables, input treesize:6, output treesize:5 [2018-04-11 20:49:51,699 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 20:49:51,700 INFO L314 TraceCheckSpWp]: Computing backward predicates... [2018-04-11 20:49:51,726 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 20:49:51,754 INFO L320 seRefinementStrategy]: Constructing automaton from 2 perfect and 0 imperfect interpolant sequences. [2018-04-11 20:49:51,754 INFO L335 seRefinementStrategy]: Number of different interpolants: perfect sequences [3, 3] imperfect sequences [] total 3 [2018-04-11 20:49:51,755 INFO L442 AbstractCegarLoop]: Interpolant automaton has 4 states [2018-04-11 20:49:51,755 INFO L132 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2018-04-11 20:49:51,755 INFO L133 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2018-04-11 20:49:51,755 INFO L87 Difference]: Start difference. First operand 64 states and 67 transitions. Second operand 4 states. [2018-04-11 20:49:51,814 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-04-11 20:49:51,814 INFO L93 Difference]: Finished difference Result 64 states and 67 transitions. [2018-04-11 20:49:51,815 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2018-04-11 20:49:51,815 INFO L78 Accepts]: Start accepts. Automaton has 4 states. Word has length 20 [2018-04-11 20:49:51,815 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-04-11 20:49:51,816 INFO L225 Difference]: With dead ends: 64 [2018-04-11 20:49:51,816 INFO L226 Difference]: Without dead ends: 63 [2018-04-11 20:49:51,817 INFO L567 BasicCegarLoop]: 0 DeclaredPredicates, 40 GetRequests, 37 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2018-04-11 20:49:51,817 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 63 states. [2018-04-11 20:49:51,822 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 63 to 63. [2018-04-11 20:49:51,822 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 63 states. [2018-04-11 20:49:51,824 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 63 states to 63 states and 66 transitions. [2018-04-11 20:49:51,824 INFO L78 Accepts]: Start accepts. Automaton has 63 states and 66 transitions. Word has length 20 [2018-04-11 20:49:51,825 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-04-11 20:49:51,825 INFO L459 AbstractCegarLoop]: Abstraction has 63 states and 66 transitions. [2018-04-11 20:49:51,825 INFO L460 AbstractCegarLoop]: Interpolant automaton has 4 states. [2018-04-11 20:49:51,825 INFO L276 IsEmpty]: Start isEmpty. Operand 63 states and 66 transitions. [2018-04-11 20:49:51,826 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 21 [2018-04-11 20:49:51,826 INFO L347 BasicCegarLoop]: Found error trace [2018-04-11 20:49:51,826 INFO L355 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2018-04-11 20:49:51,826 INFO L408 AbstractCegarLoop]: === Iteration 4 === [__U_MULTI_fopenbsd_cstrspn_alloca_true_valid_memsafety_true_termination_i__cstrspnErr1RequiresViolation, __U_MULTI_fopenbsd_cstrspn_alloca_true_valid_memsafety_true_termination_i__cstrspnErr3RequiresViolation, __U_MULTI_fopenbsd_cstrspn_alloca_true_valid_memsafety_true_termination_i__cstrspnErr2RequiresViolation, __U_MULTI_fopenbsd_cstrspn_alloca_true_valid_memsafety_true_termination_i__cstrspnErr0RequiresViolation, mainErr3RequiresViolation, mainErr1RequiresViolation, mainErr2RequiresViolation, mainErr4EnsuresViolationMEMORY_LEAK, mainErr0RequiresViolation]=== [2018-04-11 20:49:51,826 INFO L82 PathProgramCache]: Analyzing trace with hash 973498483, 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 20:49:51,836 INFO L68 tionRefinementEngine]: Using refinement strategy FixedRefinementStrategy [2018-04-11 20:49:51,849 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-04-11 20:49:51,850 INFO L270 TraceCheckSpWp]: Computing forward predicates... [2018-04-11 20:49:51,885 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 20:49:51,886 INFO L267 ElimStorePlain]: Start of recursive call 2: End of recursive call: and 1 xjuncts. [2018-04-11 20:49:51,895 INFO L267 ElimStorePlain]: Start of recursive call 1: 1 dim-1 vars, End of recursive call: and 1 xjuncts. [2018-04-11 20:49:51,896 INFO L202 ElimStorePlain]: Needed 2 recursive calls to eliminate 1 variables, input treesize:13, output treesize:12 [2018-04-11 20:49:51,913 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 20:49:51,914 INFO L314 TraceCheckSpWp]: Computing backward predicates... [2018-04-11 20:49:51,951 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-04-11 20:49:51,972 INFO L320 seRefinementStrategy]: Constructing automaton from 2 perfect and 0 imperfect interpolant sequences. [2018-04-11 20:49:51,972 INFO L335 seRefinementStrategy]: Number of different interpolants: perfect sequences [4, 4] imperfect sequences [] total 6 [2018-04-11 20:49:51,973 INFO L442 AbstractCegarLoop]: Interpolant automaton has 7 states [2018-04-11 20:49:51,973 INFO L132 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2018-04-11 20:49:51,973 INFO L133 InterpolantAutomaton]: CoverageRelationStatistics Valid=15, Invalid=27, Unknown=0, NotChecked=0, Total=42 [2018-04-11 20:49:51,973 INFO L87 Difference]: Start difference. First operand 63 states and 66 transitions. Second operand 7 states. [2018-04-11 20:49:52,022 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-04-11 20:49:52,022 INFO L93 Difference]: Finished difference Result 63 states and 66 transitions. [2018-04-11 20:49:52,022 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2018-04-11 20:49:52,022 INFO L78 Accepts]: Start accepts. Automaton has 7 states. Word has length 20 [2018-04-11 20:49:52,023 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-04-11 20:49:52,023 INFO L225 Difference]: With dead ends: 63 [2018-04-11 20:49:52,023 INFO L226 Difference]: Without dead ends: 62 [2018-04-11 20:49:52,024 INFO L567 BasicCegarLoop]: 0 DeclaredPredicates, 40 GetRequests, 34 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 20:49:52,024 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 62 states. [2018-04-11 20:49:52,027 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 62 to 62. [2018-04-11 20:49:52,027 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 62 states. [2018-04-11 20:49:52,028 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 62 states to 62 states and 65 transitions. [2018-04-11 20:49:52,028 INFO L78 Accepts]: Start accepts. Automaton has 62 states and 65 transitions. Word has length 20 [2018-04-11 20:49:52,028 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-04-11 20:49:52,028 INFO L459 AbstractCegarLoop]: Abstraction has 62 states and 65 transitions. [2018-04-11 20:49:52,028 INFO L460 AbstractCegarLoop]: Interpolant automaton has 7 states. [2018-04-11 20:49:52,029 INFO L276 IsEmpty]: Start isEmpty. Operand 62 states and 65 transitions. [2018-04-11 20:49:52,029 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 31 [2018-04-11 20:49:52,029 INFO L347 BasicCegarLoop]: Found error trace [2018-04-11 20:49:52,029 INFO L355 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2018-04-11 20:49:52,029 INFO L408 AbstractCegarLoop]: === Iteration 5 === [__U_MULTI_fopenbsd_cstrspn_alloca_true_valid_memsafety_true_termination_i__cstrspnErr1RequiresViolation, __U_MULTI_fopenbsd_cstrspn_alloca_true_valid_memsafety_true_termination_i__cstrspnErr3RequiresViolation, __U_MULTI_fopenbsd_cstrspn_alloca_true_valid_memsafety_true_termination_i__cstrspnErr2RequiresViolation, __U_MULTI_fopenbsd_cstrspn_alloca_true_valid_memsafety_true_termination_i__cstrspnErr0RequiresViolation, mainErr3RequiresViolation, mainErr1RequiresViolation, mainErr2RequiresViolation, mainErr4EnsuresViolationMEMORY_LEAK, mainErr0RequiresViolation]=== [2018-04-11 20:49:52,030 INFO L82 PathProgramCache]: Analyzing trace with hash -54369342, 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 20:49:52,036 INFO L68 tionRefinementEngine]: Using refinement strategy FixedRefinementStrategy [2018-04-11 20:49:52,051 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-04-11 20:49:52,053 INFO L270 TraceCheckSpWp]: Computing forward predicates... [2018-04-11 20:49:52,083 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 20:49:52,083 INFO L314 TraceCheckSpWp]: Computing backward predicates... [2018-04-11 20:49:52,089 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 20:49:52,109 INFO L320 seRefinementStrategy]: Constructing automaton from 2 perfect and 0 imperfect interpolant sequences. [2018-04-11 20:49:52,109 INFO L335 seRefinementStrategy]: Number of different interpolants: perfect sequences [6, 6] imperfect sequences [] total 6 [2018-04-11 20:49:52,109 INFO L442 AbstractCegarLoop]: Interpolant automaton has 7 states [2018-04-11 20:49:52,109 INFO L132 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2018-04-11 20:49:52,109 INFO L133 InterpolantAutomaton]: CoverageRelationStatistics Valid=11, Invalid=31, Unknown=0, NotChecked=0, Total=42 [2018-04-11 20:49:52,109 INFO L87 Difference]: Start difference. First operand 62 states and 65 transitions. Second operand 7 states. [2018-04-11 20:49:52,195 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-04-11 20:49:52,195 INFO L93 Difference]: Finished difference Result 62 states and 65 transitions. [2018-04-11 20:49:52,195 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2018-04-11 20:49:52,196 INFO L78 Accepts]: Start accepts. Automaton has 7 states. Word has length 30 [2018-04-11 20:49:52,196 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-04-11 20:49:52,196 INFO L225 Difference]: With dead ends: 62 [2018-04-11 20:49:52,196 INFO L226 Difference]: Without dead ends: 61 [2018-04-11 20:49:52,197 INFO L567 BasicCegarLoop]: 0 DeclaredPredicates, 62 GetRequests, 54 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 20:49:52,197 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 61 states. [2018-04-11 20:49:52,200 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 61 to 61. [2018-04-11 20:49:52,200 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 61 states. [2018-04-11 20:49:52,201 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 61 states to 61 states and 64 transitions. [2018-04-11 20:49:52,201 INFO L78 Accepts]: Start accepts. Automaton has 61 states and 64 transitions. Word has length 30 [2018-04-11 20:49:52,201 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-04-11 20:49:52,201 INFO L459 AbstractCegarLoop]: Abstraction has 61 states and 64 transitions. [2018-04-11 20:49:52,201 INFO L460 AbstractCegarLoop]: Interpolant automaton has 7 states. [2018-04-11 20:49:52,202 INFO L276 IsEmpty]: Start isEmpty. Operand 61 states and 64 transitions. [2018-04-11 20:49:52,202 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 31 [2018-04-11 20:49:52,202 INFO L347 BasicCegarLoop]: Found error trace [2018-04-11 20:49:52,203 INFO L355 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2018-04-11 20:49:52,203 INFO L408 AbstractCegarLoop]: === Iteration 6 === [__U_MULTI_fopenbsd_cstrspn_alloca_true_valid_memsafety_true_termination_i__cstrspnErr1RequiresViolation, __U_MULTI_fopenbsd_cstrspn_alloca_true_valid_memsafety_true_termination_i__cstrspnErr3RequiresViolation, __U_MULTI_fopenbsd_cstrspn_alloca_true_valid_memsafety_true_termination_i__cstrspnErr2RequiresViolation, __U_MULTI_fopenbsd_cstrspn_alloca_true_valid_memsafety_true_termination_i__cstrspnErr0RequiresViolation, mainErr3RequiresViolation, mainErr1RequiresViolation, mainErr2RequiresViolation, mainErr4EnsuresViolationMEMORY_LEAK, mainErr0RequiresViolation]=== [2018-04-11 20:49:52,203 INFO L82 PathProgramCache]: Analyzing trace with hash -54369341, 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 20:49:52,210 INFO L68 tionRefinementEngine]: Using refinement strategy FixedRefinementStrategy [2018-04-11 20:49:52,225 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-04-11 20:49:52,228 INFO L270 TraceCheckSpWp]: Computing forward predicates... [2018-04-11 20:49:52,288 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 20:49:52,288 INFO L314 TraceCheckSpWp]: Computing backward predicates... [2018-04-11 20:49:52,298 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 20:49:52,298 INFO L267 ElimStorePlain]: Start of recursive call 2: End of recursive call: and 1 xjuncts. [2018-04-11 20:49:52,304 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 20:49:52,304 INFO L267 ElimStorePlain]: Start of recursive call 3: End of recursive call: and 1 xjuncts. [2018-04-11 20:49:52,307 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 20:49:52,307 INFO L202 ElimStorePlain]: Needed 3 recursive calls to eliminate 4 variables, input treesize:29, output treesize:7 [2018-04-11 20:49:52,318 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 20:49:52,349 INFO L320 seRefinementStrategy]: Constructing automaton from 2 perfect and 0 imperfect interpolant sequences. [2018-04-11 20:49:52,349 INFO L335 seRefinementStrategy]: Number of different interpolants: perfect sequences [9, 9] imperfect sequences [] total 9 [2018-04-11 20:49:52,364 INFO L442 AbstractCegarLoop]: Interpolant automaton has 10 states [2018-04-11 20:49:52,364 INFO L132 InterpolantAutomaton]: Constructing interpolant automaton starting with 10 interpolants. [2018-04-11 20:49:52,365 INFO L133 InterpolantAutomaton]: CoverageRelationStatistics Valid=19, Invalid=71, Unknown=0, NotChecked=0, Total=90 [2018-04-11 20:49:52,365 INFO L87 Difference]: Start difference. First operand 61 states and 64 transitions. Second operand 10 states. [2018-04-11 20:49:52,516 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-04-11 20:49:52,516 INFO L93 Difference]: Finished difference Result 65 states and 68 transitions. [2018-04-11 20:49:52,516 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 12 states. [2018-04-11 20:49:52,517 INFO L78 Accepts]: Start accepts. Automaton has 10 states. Word has length 30 [2018-04-11 20:49:52,517 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-04-11 20:49:52,518 INFO L225 Difference]: With dead ends: 65 [2018-04-11 20:49:52,518 INFO L226 Difference]: Without dead ends: 64 [2018-04-11 20:49:52,518 INFO L567 BasicCegarLoop]: 0 DeclaredPredicates, 66 GetRequests, 49 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 20:49:52,519 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 64 states. [2018-04-11 20:49:52,524 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 64 to 64. [2018-04-11 20:49:52,524 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 64 states. [2018-04-11 20:49:52,525 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 64 states to 64 states and 67 transitions. [2018-04-11 20:49:52,525 INFO L78 Accepts]: Start accepts. Automaton has 64 states and 67 transitions. Word has length 30 [2018-04-11 20:49:52,525 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-04-11 20:49:52,525 INFO L459 AbstractCegarLoop]: Abstraction has 64 states and 67 transitions. [2018-04-11 20:49:52,525 INFO L460 AbstractCegarLoop]: Interpolant automaton has 10 states. [2018-04-11 20:49:52,526 INFO L276 IsEmpty]: Start isEmpty. Operand 64 states and 67 transitions. [2018-04-11 20:49:52,526 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 39 [2018-04-11 20:49:52,526 INFO L347 BasicCegarLoop]: Found error trace [2018-04-11 20:49:52,526 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] [2018-04-11 20:49:52,527 INFO L408 AbstractCegarLoop]: === Iteration 7 === [__U_MULTI_fopenbsd_cstrspn_alloca_true_valid_memsafety_true_termination_i__cstrspnErr1RequiresViolation, __U_MULTI_fopenbsd_cstrspn_alloca_true_valid_memsafety_true_termination_i__cstrspnErr3RequiresViolation, __U_MULTI_fopenbsd_cstrspn_alloca_true_valid_memsafety_true_termination_i__cstrspnErr2RequiresViolation, __U_MULTI_fopenbsd_cstrspn_alloca_true_valid_memsafety_true_termination_i__cstrspnErr0RequiresViolation, mainErr3RequiresViolation, mainErr1RequiresViolation, mainErr2RequiresViolation, mainErr4EnsuresViolationMEMORY_LEAK, mainErr0RequiresViolation]=== [2018-04-11 20:49:52,527 INFO L82 PathProgramCache]: Analyzing trace with hash 2100809862, 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 20:49:52,535 INFO L68 tionRefinementEngine]: Using refinement strategy FixedRefinementStrategy [2018-04-11 20:49:52,555 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-04-11 20:49:52,557 INFO L270 TraceCheckSpWp]: Computing forward predicates... [2018-04-11 20:49:52,582 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 20:49:52,583 INFO L314 TraceCheckSpWp]: Computing backward predicates... [2018-04-11 20:49:52,589 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 20:49:52,610 INFO L320 seRefinementStrategy]: Constructing automaton from 2 perfect and 0 imperfect interpolant sequences. [2018-04-11 20:49:52,610 INFO L335 seRefinementStrategy]: Number of different interpolants: perfect sequences [6, 6] imperfect sequences [] total 6 [2018-04-11 20:49:52,611 INFO L442 AbstractCegarLoop]: Interpolant automaton has 7 states [2018-04-11 20:49:52,611 INFO L132 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2018-04-11 20:49:52,611 INFO L133 InterpolantAutomaton]: CoverageRelationStatistics Valid=11, Invalid=31, Unknown=0, NotChecked=0, Total=42 [2018-04-11 20:49:52,612 INFO L87 Difference]: Start difference. First operand 64 states and 67 transitions. Second operand 7 states. [2018-04-11 20:49:52,726 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-04-11 20:49:52,726 INFO L93 Difference]: Finished difference Result 68 states and 71 transitions. [2018-04-11 20:49:52,727 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2018-04-11 20:49:52,727 INFO L78 Accepts]: Start accepts. Automaton has 7 states. Word has length 38 [2018-04-11 20:49:52,727 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-04-11 20:49:52,728 INFO L225 Difference]: With dead ends: 68 [2018-04-11 20:49:52,728 INFO L226 Difference]: Without dead ends: 67 [2018-04-11 20:49:52,728 INFO L567 BasicCegarLoop]: 0 DeclaredPredicates, 78 GetRequests, 70 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 20:49:52,731 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 67 states. [2018-04-11 20:49:52,735 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 67 to 63. [2018-04-11 20:49:52,735 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 63 states. [2018-04-11 20:49:52,737 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 63 states to 63 states and 66 transitions. [2018-04-11 20:49:52,737 INFO L78 Accepts]: Start accepts. Automaton has 63 states and 66 transitions. Word has length 38 [2018-04-11 20:49:52,737 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-04-11 20:49:52,737 INFO L459 AbstractCegarLoop]: Abstraction has 63 states and 66 transitions. [2018-04-11 20:49:52,737 INFO L460 AbstractCegarLoop]: Interpolant automaton has 7 states. [2018-04-11 20:49:52,738 INFO L276 IsEmpty]: Start isEmpty. Operand 63 states and 66 transitions. [2018-04-11 20:49:52,738 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 39 [2018-04-11 20:49:52,739 INFO L347 BasicCegarLoop]: Found error trace [2018-04-11 20:49:52,739 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] [2018-04-11 20:49:52,739 INFO L408 AbstractCegarLoop]: === Iteration 8 === [__U_MULTI_fopenbsd_cstrspn_alloca_true_valid_memsafety_true_termination_i__cstrspnErr1RequiresViolation, __U_MULTI_fopenbsd_cstrspn_alloca_true_valid_memsafety_true_termination_i__cstrspnErr3RequiresViolation, __U_MULTI_fopenbsd_cstrspn_alloca_true_valid_memsafety_true_termination_i__cstrspnErr2RequiresViolation, __U_MULTI_fopenbsd_cstrspn_alloca_true_valid_memsafety_true_termination_i__cstrspnErr0RequiresViolation, mainErr3RequiresViolation, mainErr1RequiresViolation, mainErr2RequiresViolation, mainErr4EnsuresViolationMEMORY_LEAK, mainErr0RequiresViolation]=== [2018-04-11 20:49:52,739 INFO L82 PathProgramCache]: Analyzing trace with hash 2100809863, 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 20:49:52,747 INFO L68 tionRefinementEngine]: Using refinement strategy FixedRefinementStrategy [2018-04-11 20:49:52,771 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-04-11 20:49:52,774 INFO L270 TraceCheckSpWp]: Computing forward predicates... [2018-04-11 20:49:52,837 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 20:49:52,837 INFO L314 TraceCheckSpWp]: Computing backward predicates... [2018-04-11 20:49:52,848 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 20:49:52,848 INFO L267 ElimStorePlain]: Start of recursive call 2: End of recursive call: and 1 xjuncts. [2018-04-11 20:49:52,856 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 20:49:52,857 INFO L267 ElimStorePlain]: Start of recursive call 3: End of recursive call: and 1 xjuncts. [2018-04-11 20:49:52,860 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 20:49:52,860 INFO L202 ElimStorePlain]: Needed 3 recursive calls to eliminate 4 variables, input treesize:29, output treesize:7 [2018-04-11 20:49:52,872 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-04-11 20:49:52,892 INFO L320 seRefinementStrategy]: Constructing automaton from 2 perfect and 0 imperfect interpolant sequences. [2018-04-11 20:49:52,892 INFO L335 seRefinementStrategy]: Number of different interpolants: perfect sequences [9, 9] imperfect sequences [] total 9 [2018-04-11 20:49:52,893 INFO L442 AbstractCegarLoop]: Interpolant automaton has 10 states [2018-04-11 20:49:52,893 INFO L132 InterpolantAutomaton]: Constructing interpolant automaton starting with 10 interpolants. [2018-04-11 20:49:52,893 INFO L133 InterpolantAutomaton]: CoverageRelationStatistics Valid=19, Invalid=71, Unknown=0, NotChecked=0, Total=90 [2018-04-11 20:49:52,893 INFO L87 Difference]: Start difference. First operand 63 states and 66 transitions. Second operand 10 states. [2018-04-11 20:49:53,024 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-04-11 20:49:53,024 INFO L93 Difference]: Finished difference Result 68 states and 71 transitions. [2018-04-11 20:49:53,024 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 12 states. [2018-04-11 20:49:53,024 INFO L78 Accepts]: Start accepts. Automaton has 10 states. Word has length 38 [2018-04-11 20:49:53,025 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-04-11 20:49:53,025 INFO L225 Difference]: With dead ends: 68 [2018-04-11 20:49:53,025 INFO L226 Difference]: Without dead ends: 67 [2018-04-11 20:49:53,026 INFO L567 BasicCegarLoop]: 0 DeclaredPredicates, 82 GetRequests, 65 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 20:49:53,026 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 67 states. [2018-04-11 20:49:53,032 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 67 to 67. [2018-04-11 20:49:53,032 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 67 states. [2018-04-11 20:49:53,033 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 67 states to 67 states and 70 transitions. [2018-04-11 20:49:53,033 INFO L78 Accepts]: Start accepts. Automaton has 67 states and 70 transitions. Word has length 38 [2018-04-11 20:49:53,034 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-04-11 20:49:53,034 INFO L459 AbstractCegarLoop]: Abstraction has 67 states and 70 transitions. [2018-04-11 20:49:53,034 INFO L460 AbstractCegarLoop]: Interpolant automaton has 10 states. [2018-04-11 20:49:53,034 INFO L276 IsEmpty]: Start isEmpty. Operand 67 states and 70 transitions. [2018-04-11 20:49:53,035 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 47 [2018-04-11 20:49:53,035 INFO L347 BasicCegarLoop]: Found error trace [2018-04-11 20:49:53,036 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] [2018-04-11 20:49:53,036 INFO L408 AbstractCegarLoop]: === Iteration 9 === [__U_MULTI_fopenbsd_cstrspn_alloca_true_valid_memsafety_true_termination_i__cstrspnErr1RequiresViolation, __U_MULTI_fopenbsd_cstrspn_alloca_true_valid_memsafety_true_termination_i__cstrspnErr3RequiresViolation, __U_MULTI_fopenbsd_cstrspn_alloca_true_valid_memsafety_true_termination_i__cstrspnErr2RequiresViolation, __U_MULTI_fopenbsd_cstrspn_alloca_true_valid_memsafety_true_termination_i__cstrspnErr0RequiresViolation, mainErr3RequiresViolation, mainErr1RequiresViolation, mainErr2RequiresViolation, mainErr4EnsuresViolationMEMORY_LEAK, mainErr0RequiresViolation]=== [2018-04-11 20:49:53,036 INFO L82 PathProgramCache]: Analyzing trace with hash 1894495506, 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 20:49:53,042 INFO L68 tionRefinementEngine]: Using refinement strategy FixedRefinementStrategy [2018-04-11 20:49:53,065 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-04-11 20:49:53,069 INFO L270 TraceCheckSpWp]: Computing forward predicates... [2018-04-11 20:49:53,088 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 20:49:53,088 INFO L267 ElimStorePlain]: Start of recursive call 2: End of recursive call: and 1 xjuncts. [2018-04-11 20:49:53,091 INFO L267 ElimStorePlain]: Start of recursive call 1: 1 dim-1 vars, End of recursive call: and 1 xjuncts. [2018-04-11 20:49:53,092 INFO L202 ElimStorePlain]: Needed 2 recursive calls to eliminate 1 variables, input treesize:10, output treesize:9 [2018-04-11 20:49:53,103 INFO L700 Elim1Store]: detected not equals via solver [2018-04-11 20:49:53,103 INFO L700 Elim1Store]: detected not equals via solver [2018-04-11 20:49:53,104 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 20:49:53,104 INFO L267 ElimStorePlain]: Start of recursive call 2: End of recursive call: and 1 xjuncts. [2018-04-11 20:49:53,107 INFO L267 ElimStorePlain]: Start of recursive call 1: 1 dim-1 vars, End of recursive call: and 1 xjuncts. [2018-04-11 20:49:53,107 INFO L202 ElimStorePlain]: Needed 2 recursive calls to eliminate 1 variables, input treesize:14, output treesize:8 [2018-04-11 20:49:53,122 INFO L477 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 14 treesize of output 11 [2018-04-11 20:49:53,124 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 20:49:53,124 INFO L267 ElimStorePlain]: Start of recursive call 3: End of recursive call: and 1 xjuncts. [2018-04-11 20:49:53,125 INFO L267 ElimStorePlain]: Start of recursive call 2: 1 dim-1 vars, End of recursive call: and 1 xjuncts. [2018-04-11 20:49:53,131 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 20:49:53,131 INFO L202 ElimStorePlain]: Needed 3 recursive calls to eliminate 2 variables, input treesize:29, output treesize:25 [2018-04-11 20:49:53,147 INFO L477 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 2 select indices, 2 select index equivalence classes, 1 disjoint index pairs (out of 1 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 25 treesize of output 26 [2018-04-11 20:49:53,150 INFO L477 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 0 select indices, 0 select index equivalence classes, 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 20:49:53,150 INFO L267 ElimStorePlain]: Start of recursive call 3: End of recursive call: and 1 xjuncts. [2018-04-11 20:49:53,160 INFO L267 ElimStorePlain]: Start of recursive call 2: 1 dim-1 vars, End of recursive call: and 1 xjuncts. [2018-04-11 20:49:53,170 INFO L267 ElimStorePlain]: Start of recursive call 1: 4 dim-0 vars, 1 dim-2 vars, End of recursive call: 4 dim-0 vars, and 1 xjuncts. [2018-04-11 20:49:53,170 INFO L202 ElimStorePlain]: Needed 3 recursive calls to eliminate 5 variables, input treesize:39, output treesize:35 [2018-04-11 20:49:53,441 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 30 treesize of output 28 [2018-04-11 20:49:53,456 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 20:49:53,457 INFO L267 ElimStorePlain]: Start of recursive call 3: End of recursive call: and 2 xjuncts. [2018-04-11 20:49:53,466 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 20:49:53,466 INFO L267 ElimStorePlain]: Start of recursive call 4: End of recursive call: and 1 xjuncts. [2018-04-11 20:49:53,470 INFO L267 ElimStorePlain]: Start of recursive call 2: 2 dim-1 vars, End of recursive call: and 2 xjuncts. [2018-04-11 20:49:53,490 INFO L267 ElimStorePlain]: Start of recursive call 1: 5 dim-0 vars, 1 dim-2 vars, End of recursive call: and 2 xjuncts. [2018-04-11 20:49:53,490 INFO L202 ElimStorePlain]: Needed 4 recursive calls to eliminate 6 variables, input treesize:52, output treesize:29 [2018-04-11 20:49:53,651 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 20:49:53,651 INFO L314 TraceCheckSpWp]: Computing backward predicates... [2018-04-11 20:49:54,111 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 20:49:54,111 INFO L267 ElimStorePlain]: Start of recursive call 2: End of recursive call: and 1 xjuncts. [2018-04-11 20:49:54,118 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 20:49:54,127 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 20:49:54,127 INFO L267 ElimStorePlain]: Start of recursive call 4: End of recursive call: and 1 xjuncts. [2018-04-11 20:49:54,129 INFO L267 ElimStorePlain]: Start of recursive call 3: 1 dim-1 vars, End of recursive call: and 1 xjuncts. [2018-04-11 20:49:54,134 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 20:49:54,134 INFO L202 ElimStorePlain]: Needed 4 recursive calls to eliminate 4 variables, input treesize:35, output treesize:7 [2018-04-11 20:49:54,174 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 20:49:54,194 INFO L320 seRefinementStrategy]: Constructing automaton from 0 perfect and 2 imperfect interpolant sequences. [2018-04-11 20:49:54,195 INFO L335 seRefinementStrategy]: Number of different interpolants: perfect sequences [] imperfect sequences [18, 14] total 30 [2018-04-11 20:49:54,195 INFO L442 AbstractCegarLoop]: Interpolant automaton has 31 states [2018-04-11 20:49:54,195 INFO L132 InterpolantAutomaton]: Constructing interpolant automaton starting with 31 interpolants. [2018-04-11 20:49:54,196 INFO L133 InterpolantAutomaton]: CoverageRelationStatistics Valid=94, Invalid=836, Unknown=0, NotChecked=0, Total=930 [2018-04-11 20:49:54,196 INFO L87 Difference]: Start difference. First operand 67 states and 70 transitions. Second operand 31 states. [2018-04-11 20:49:55,705 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-04-11 20:49:55,705 INFO L93 Difference]: Finished difference Result 99 states and 104 transitions. [2018-04-11 20:49:55,705 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 26 states. [2018-04-11 20:49:55,705 INFO L78 Accepts]: Start accepts. Automaton has 31 states. Word has length 46 [2018-04-11 20:49:55,706 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-04-11 20:49:55,708 INFO L225 Difference]: With dead ends: 99 [2018-04-11 20:49:55,708 INFO L226 Difference]: Without dead ends: 98 [2018-04-11 20:49:55,709 INFO L567 BasicCegarLoop]: 0 DeclaredPredicates, 112 GetRequests, 60 SyntacticMatches, 2 SemanticMatches, 50 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 513 ImplicationChecksByTransitivity, 1.9s TimeCoverageRelationStatistics Valid=350, Invalid=2302, Unknown=0, NotChecked=0, Total=2652 [2018-04-11 20:49:55,709 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 98 states. [2018-04-11 20:49:55,720 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 98 to 87. [2018-04-11 20:49:55,721 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 87 states. [2018-04-11 20:49:55,722 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 87 states to 87 states and 93 transitions. [2018-04-11 20:49:55,722 INFO L78 Accepts]: Start accepts. Automaton has 87 states and 93 transitions. Word has length 46 [2018-04-11 20:49:55,722 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-04-11 20:49:55,722 INFO L459 AbstractCegarLoop]: Abstraction has 87 states and 93 transitions. [2018-04-11 20:49:55,723 INFO L460 AbstractCegarLoop]: Interpolant automaton has 31 states. [2018-04-11 20:49:55,723 INFO L276 IsEmpty]: Start isEmpty. Operand 87 states and 93 transitions. [2018-04-11 20:49:55,724 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 48 [2018-04-11 20:49:55,724 INFO L347 BasicCegarLoop]: Found error trace [2018-04-11 20:49:55,724 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] [2018-04-11 20:49:55,724 INFO L408 AbstractCegarLoop]: === Iteration 10 === [__U_MULTI_fopenbsd_cstrspn_alloca_true_valid_memsafety_true_termination_i__cstrspnErr1RequiresViolation, __U_MULTI_fopenbsd_cstrspn_alloca_true_valid_memsafety_true_termination_i__cstrspnErr3RequiresViolation, __U_MULTI_fopenbsd_cstrspn_alloca_true_valid_memsafety_true_termination_i__cstrspnErr2RequiresViolation, __U_MULTI_fopenbsd_cstrspn_alloca_true_valid_memsafety_true_termination_i__cstrspnErr0RequiresViolation, mainErr3RequiresViolation, mainErr1RequiresViolation, mainErr2RequiresViolation, mainErr4EnsuresViolationMEMORY_LEAK, mainErr0RequiresViolation]=== [2018-04-11 20:49:55,725 INFO L82 PathProgramCache]: Analyzing trace with hash -1397965012, 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 20:49:55,738 INFO L68 tionRefinementEngine]: Using refinement strategy FixedRefinementStrategy [2018-04-11 20:49:55,760 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-04-11 20:49:55,764 INFO L270 TraceCheckSpWp]: Computing forward predicates... [2018-04-11 20:49:55,786 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 20:49:55,788 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 20:49:55,788 INFO L267 ElimStorePlain]: Start of recursive call 3: End of recursive call: and 1 xjuncts. [2018-04-11 20:49:55,791 INFO L267 ElimStorePlain]: Start of recursive call 2: 1 dim-1 vars, End of recursive call: and 1 xjuncts. [2018-04-11 20:49:55,802 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 20:49:55,802 INFO L202 ElimStorePlain]: Needed 3 recursive calls to eliminate 2 variables, input treesize:25, output treesize:21 [2018-04-11 20:49:55,920 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 20:49:55,941 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 20:49:55,941 INFO L267 ElimStorePlain]: Start of recursive call 3: End of recursive call: and 2 xjuncts. [2018-04-11 20:49:55,945 INFO L267 ElimStorePlain]: Start of recursive call 2: 1 dim-1 vars, End of recursive call: and 2 xjuncts. [2018-04-11 20:49:55,956 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 20:49:55,956 INFO L202 ElimStorePlain]: Needed 3 recursive calls to eliminate 3 variables, input treesize:38, output treesize:29 [2018-04-11 20:49:56,060 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 20:49:56,060 INFO L314 TraceCheckSpWp]: Computing backward predicates... [2018-04-11 20:49:56,302 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 20:49:56,303 INFO L267 ElimStorePlain]: Start of recursive call 2: End of recursive call: and 1 xjuncts. [2018-04-11 20:49:56,309 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 20:49:56,318 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 20:49:56,318 INFO L267 ElimStorePlain]: Start of recursive call 4: End of recursive call: and 1 xjuncts. [2018-04-11 20:49:56,319 INFO L267 ElimStorePlain]: Start of recursive call 3: 1 dim-1 vars, End of recursive call: and 1 xjuncts. [2018-04-11 20:49:56,324 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 20:49:56,324 INFO L202 ElimStorePlain]: Needed 4 recursive calls to eliminate 5 variables, input treesize:35, output treesize:7 [2018-04-11 20:49:56,332 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 20:49:56,352 INFO L320 seRefinementStrategy]: Constructing automaton from 0 perfect and 2 imperfect interpolant sequences. [2018-04-11 20:49:56,352 INFO L335 seRefinementStrategy]: Number of different interpolants: perfect sequences [] imperfect sequences [12, 12] total 22 [2018-04-11 20:49:56,352 INFO L442 AbstractCegarLoop]: Interpolant automaton has 23 states [2018-04-11 20:49:56,352 INFO L132 InterpolantAutomaton]: Constructing interpolant automaton starting with 23 interpolants. [2018-04-11 20:49:56,353 INFO L133 InterpolantAutomaton]: CoverageRelationStatistics Valid=63, Invalid=443, Unknown=0, NotChecked=0, Total=506 [2018-04-11 20:49:56,353 INFO L87 Difference]: Start difference. First operand 87 states and 93 transitions. Second operand 23 states. [2018-04-11 20:49:59,284 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-04-11 20:49:59,284 INFO L93 Difference]: Finished difference Result 129 states and 142 transitions. [2018-04-11 20:49:59,284 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 21 states. [2018-04-11 20:49:59,284 INFO L78 Accepts]: Start accepts. Automaton has 23 states. Word has length 47 [2018-04-11 20:49:59,285 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-04-11 20:49:59,285 INFO L225 Difference]: With dead ends: 129 [2018-04-11 20:49:59,286 INFO L226 Difference]: Without dead ends: 128 [2018-04-11 20:49:59,286 INFO L567 BasicCegarLoop]: 0 DeclaredPredicates, 110 GetRequests, 71 SyntacticMatches, 1 SemanticMatches, 38 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 212 ImplicationChecksByTransitivity, 1.0s TimeCoverageRelationStatistics Valid=288, Invalid=1272, Unknown=0, NotChecked=0, Total=1560 [2018-04-11 20:49:59,286 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 128 states. [2018-04-11 20:49:59,294 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 128 to 105. [2018-04-11 20:49:59,294 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 105 states. [2018-04-11 20:49:59,295 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 105 states to 105 states and 115 transitions. [2018-04-11 20:49:59,295 INFO L78 Accepts]: Start accepts. Automaton has 105 states and 115 transitions. Word has length 47 [2018-04-11 20:49:59,295 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-04-11 20:49:59,295 INFO L459 AbstractCegarLoop]: Abstraction has 105 states and 115 transitions. [2018-04-11 20:49:59,295 INFO L460 AbstractCegarLoop]: Interpolant automaton has 23 states. [2018-04-11 20:49:59,295 INFO L276 IsEmpty]: Start isEmpty. Operand 105 states and 115 transitions. [2018-04-11 20:49:59,296 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 53 [2018-04-11 20:49:59,297 INFO L347 BasicCegarLoop]: Found error trace [2018-04-11 20:49:59,297 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 20:49:59,297 INFO L408 AbstractCegarLoop]: === Iteration 11 === [__U_MULTI_fopenbsd_cstrspn_alloca_true_valid_memsafety_true_termination_i__cstrspnErr1RequiresViolation, __U_MULTI_fopenbsd_cstrspn_alloca_true_valid_memsafety_true_termination_i__cstrspnErr3RequiresViolation, __U_MULTI_fopenbsd_cstrspn_alloca_true_valid_memsafety_true_termination_i__cstrspnErr2RequiresViolation, __U_MULTI_fopenbsd_cstrspn_alloca_true_valid_memsafety_true_termination_i__cstrspnErr0RequiresViolation, mainErr3RequiresViolation, mainErr1RequiresViolation, mainErr2RequiresViolation, mainErr4EnsuresViolationMEMORY_LEAK, mainErr0RequiresViolation]=== [2018-04-11 20:49:59,297 INFO L82 PathProgramCache]: Analyzing trace with hash -625421328, 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 20:49:59,303 INFO L68 tionRefinementEngine]: Using refinement strategy FixedRefinementStrategy [2018-04-11 20:49:59,325 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-04-11 20:49:59,329 INFO L270 TraceCheckSpWp]: Computing forward predicates... [2018-04-11 20:49:59,363 INFO L700 Elim1Store]: detected not equals via solver [2018-04-11 20:49:59,363 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 20:49:59,365 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 20:49:59,366 INFO L267 ElimStorePlain]: Start of recursive call 3: End of recursive call: and 1 xjuncts. [2018-04-11 20:49:59,369 INFO L267 ElimStorePlain]: Start of recursive call 2: 1 dim-1 vars, End of recursive call: and 1 xjuncts. [2018-04-11 20:49:59,372 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 20:49:59,373 INFO L202 ElimStorePlain]: Needed 3 recursive calls to eliminate 3 variables, input treesize:23, output treesize:15 [2018-04-11 20:49:59,436 WARN L1033 $PredicateComparison]: unable to prove that (exists ((|main_#t~malloc8.base| Int)) (let ((.cse0 (store |c_old(#valid)| |main_#t~malloc8.base| 1))) (and (= 0 (select .cse0 |c_main_#t~malloc9.base|)) (= |c_#valid| (store (store .cse0 |c_main_#t~malloc9.base| 1) |main_#t~malloc8.base| 0)) (= 0 (select |c_old(#valid)| |main_#t~malloc8.base|))))) is different from true [2018-04-11 20:49:59,440 WARN L1033 $PredicateComparison]: unable to prove that (exists ((|main_#t~malloc8.base| Int) (|main_#t~malloc9.base| Int)) (let ((.cse0 (store |c_old(#valid)| |main_#t~malloc8.base| 1))) (and (= 0 (select .cse0 |main_#t~malloc9.base|)) (= |c_#valid| (store (store (store .cse0 |main_#t~malloc9.base| 1) |main_#t~malloc8.base| 0) |main_#t~malloc9.base| 0)) (= 0 (select |c_old(#valid)| |main_#t~malloc8.base|))))) is different from true [2018-04-11 20:49:59,453 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 20:49:59,453 INFO L314 TraceCheckSpWp]: Computing backward predicates... [2018-04-11 20:49:59,535 WARN L1011 $PredicateComparison]: unable to prove that (forall ((|v_main_#t~malloc9.base_14| Int)) (or (not (= 0 (select |c_#valid| |v_main_#t~malloc9.base_14|))) (= |c_old(#valid)| (store (store (store |c_#valid| |v_main_#t~malloc9.base_14| 1) |c_main_#t~malloc8.base| 0) |v_main_#t~malloc9.base_14| 0)))) is different from false [2018-04-11 20:49:59,539 WARN L1011 $PredicateComparison]: unable to prove that (forall ((|v_main_#t~malloc9.base_14| Int) (|v_main_#t~malloc8.base_13| Int)) (let ((.cse0 (store |c_#valid| |v_main_#t~malloc8.base_13| 1))) (or (= (store (store (store .cse0 |v_main_#t~malloc9.base_14| 1) |v_main_#t~malloc8.base_13| 0) |v_main_#t~malloc9.base_14| 0) |c_old(#valid)|) (not (= 0 (select |c_#valid| |v_main_#t~malloc8.base_13|))) (not (= 0 (select .cse0 |v_main_#t~malloc9.base_14|)))))) is different from false [2018-04-11 20:49:59,563 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 20:49:59,588 INFO L320 seRefinementStrategy]: Constructing automaton from 2 perfect and 0 imperfect interpolant sequences. [2018-04-11 20:49:59,588 INFO L335 seRefinementStrategy]: Number of different interpolants: perfect sequences [11, 6] imperfect sequences [] total 15 [2018-04-11 20:49:59,589 INFO L442 AbstractCegarLoop]: Interpolant automaton has 16 states [2018-04-11 20:49:59,589 INFO L132 InterpolantAutomaton]: Constructing interpolant automaton starting with 16 interpolants. [2018-04-11 20:49:59,589 INFO L133 InterpolantAutomaton]: CoverageRelationStatistics Valid=37, Invalid=107, Unknown=4, NotChecked=92, Total=240 [2018-04-11 20:49:59,589 INFO L87 Difference]: Start difference. First operand 105 states and 115 transitions. Second operand 16 states. [2018-04-11 20:49:59,598 WARN L1011 $PredicateComparison]: unable to prove that (and (= |c_#valid| |c_old(#valid)|) (forall ((|v_main_#t~malloc9.base_14| Int) (|v_main_#t~malloc8.base_13| Int)) (let ((.cse0 (store |c_#valid| |v_main_#t~malloc8.base_13| 1))) (or (= (store (store (store .cse0 |v_main_#t~malloc9.base_14| 1) |v_main_#t~malloc8.base_13| 0) |v_main_#t~malloc9.base_14| 0) |c_old(#valid)|) (not (= 0 (select |c_#valid| |v_main_#t~malloc8.base_13|))) (not (= 0 (select .cse0 |v_main_#t~malloc9.base_14|))))))) is different from false [2018-04-11 20:49:59,882 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-04-11 20:49:59,882 INFO L93 Difference]: Finished difference Result 195 states and 214 transitions. [2018-04-11 20:49:59,883 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 14 states. [2018-04-11 20:49:59,883 INFO L78 Accepts]: Start accepts. Automaton has 16 states. Word has length 52 [2018-04-11 20:49:59,883 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-04-11 20:49:59,885 INFO L225 Difference]: With dead ends: 195 [2018-04-11 20:49:59,886 INFO L226 Difference]: Without dead ends: 182 [2018-04-11 20:49:59,886 INFO L567 BasicCegarLoop]: 0 DeclaredPredicates, 114 GetRequests, 90 SyntacticMatches, 2 SemanticMatches, 22 ConstructedPredicates, 5 IntricatePredicates, 0 DeprecatedPredicates, 55 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=73, Invalid=283, Unknown=6, NotChecked=190, Total=552 [2018-04-11 20:49:59,887 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 182 states. [2018-04-11 20:49:59,910 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 182 to 180. [2018-04-11 20:49:59,911 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 180 states. [2018-04-11 20:49:59,912 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 180 states to 180 states and 198 transitions. [2018-04-11 20:49:59,912 INFO L78 Accepts]: Start accepts. Automaton has 180 states and 198 transitions. Word has length 52 [2018-04-11 20:49:59,912 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-04-11 20:49:59,913 INFO L459 AbstractCegarLoop]: Abstraction has 180 states and 198 transitions. [2018-04-11 20:49:59,913 INFO L460 AbstractCegarLoop]: Interpolant automaton has 16 states. [2018-04-11 20:49:59,913 INFO L276 IsEmpty]: Start isEmpty. Operand 180 states and 198 transitions. [2018-04-11 20:49:59,914 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 54 [2018-04-11 20:49:59,914 INFO L347 BasicCegarLoop]: Found error trace [2018-04-11 20:49:59,915 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, 1] [2018-04-11 20:49:59,915 INFO L408 AbstractCegarLoop]: === Iteration 12 === [__U_MULTI_fopenbsd_cstrspn_alloca_true_valid_memsafety_true_termination_i__cstrspnErr1RequiresViolation, __U_MULTI_fopenbsd_cstrspn_alloca_true_valid_memsafety_true_termination_i__cstrspnErr3RequiresViolation, __U_MULTI_fopenbsd_cstrspn_alloca_true_valid_memsafety_true_termination_i__cstrspnErr2RequiresViolation, __U_MULTI_fopenbsd_cstrspn_alloca_true_valid_memsafety_true_termination_i__cstrspnErr0RequiresViolation, mainErr3RequiresViolation, mainErr1RequiresViolation, mainErr2RequiresViolation, mainErr4EnsuresViolationMEMORY_LEAK, mainErr0RequiresViolation]=== [2018-04-11 20:49:59,915 INFO L82 PathProgramCache]: Analyzing trace with hash 257699090, 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 20:49:59,926 INFO L68 tionRefinementEngine]: Using refinement strategy FixedRefinementStrategy [2018-04-11 20:49:59,945 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-04-11 20:49:59,948 INFO L270 TraceCheckSpWp]: Computing forward predicates... [2018-04-11 20:49:59,986 INFO L700 Elim1Store]: detected not equals via solver [2018-04-11 20:49:59,987 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 20:49:59,989 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 20:49:59,990 INFO L267 ElimStorePlain]: Start of recursive call 3: End of recursive call: and 1 xjuncts. [2018-04-11 20:49:59,994 INFO L267 ElimStorePlain]: Start of recursive call 2: 1 dim-1 vars, End of recursive call: and 1 xjuncts. [2018-04-11 20:49:59,997 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 20:49:59,998 INFO L202 ElimStorePlain]: Needed 3 recursive calls to eliminate 3 variables, input treesize:23, output treesize:15 [2018-04-11 20:50:00,072 WARN L1033 $PredicateComparison]: unable to prove that (exists ((|main_#t~malloc8.base| Int)) (let ((.cse0 (store |c_old(#valid)| |main_#t~malloc8.base| 1))) (and (= 0 (select .cse0 |c_main_#t~malloc9.base|)) (= |c_#valid| (store (store .cse0 |c_main_#t~malloc9.base| 1) |main_#t~malloc8.base| 0)) (= 0 (select |c_old(#valid)| |main_#t~malloc8.base|))))) is different from true [2018-04-11 20:50:00,099 WARN L1033 $PredicateComparison]: unable to prove that (exists ((|main_#t~malloc8.base| Int) (|main_#t~malloc9.base| Int)) (let ((.cse0 (store |c_old(#valid)| |main_#t~malloc8.base| 1))) (and (= 0 (select .cse0 |main_#t~malloc9.base|)) (= |c_#valid| (store (store (store .cse0 |main_#t~malloc9.base| 1) |main_#t~malloc8.base| 0) |main_#t~malloc9.base| 0)) (= 0 (select |c_old(#valid)| |main_#t~malloc8.base|))))) is different from true [2018-04-11 20:50:00,111 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 20:50:00,111 INFO L314 TraceCheckSpWp]: Computing backward predicates... [2018-04-11 20:50:00,158 WARN L1011 $PredicateComparison]: unable to prove that (forall ((|v_main_#t~malloc9.base_16| Int)) (or (not (= 0 (select |c_#valid| |v_main_#t~malloc9.base_16|))) (= (store (store (store |c_#valid| |v_main_#t~malloc9.base_16| 1) |c_main_#t~malloc8.base| 0) |v_main_#t~malloc9.base_16| 0) |c_old(#valid)|))) is different from false [2018-04-11 20:50:00,164 WARN L1011 $PredicateComparison]: unable to prove that (forall ((|v_main_#t~malloc8.base_15| Int) (|v_main_#t~malloc9.base_16| Int)) (let ((.cse0 (store |c_#valid| |v_main_#t~malloc8.base_15| 1))) (or (= (store (store (store .cse0 |v_main_#t~malloc9.base_16| 1) |v_main_#t~malloc8.base_15| 0) |v_main_#t~malloc9.base_16| 0) |c_old(#valid)|) (not (= (select .cse0 |v_main_#t~malloc9.base_16|) 0)) (not (= 0 (select |c_#valid| |v_main_#t~malloc8.base_15|)))))) is different from false [2018-04-11 20:50:00,187 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 20:50:00,221 INFO L320 seRefinementStrategy]: Constructing automaton from 2 perfect and 0 imperfect interpolant sequences. [2018-04-11 20:50:00,221 INFO L335 seRefinementStrategy]: Number of different interpolants: perfect sequences [11, 6] imperfect sequences [] total 15 [2018-04-11 20:50:00,221 INFO L442 AbstractCegarLoop]: Interpolant automaton has 16 states [2018-04-11 20:50:00,222 INFO L132 InterpolantAutomaton]: Constructing interpolant automaton starting with 16 interpolants. [2018-04-11 20:50:00,222 INFO L133 InterpolantAutomaton]: CoverageRelationStatistics Valid=37, Invalid=107, Unknown=4, NotChecked=92, Total=240 [2018-04-11 20:50:00,222 INFO L87 Difference]: Start difference. First operand 180 states and 198 transitions. Second operand 16 states. [2018-04-11 20:50:00,258 WARN L1011 $PredicateComparison]: unable to prove that (and (forall ((|v_main_#t~malloc8.base_15| Int) (|v_main_#t~malloc9.base_16| Int)) (let ((.cse0 (store |c_#valid| |v_main_#t~malloc8.base_15| 1))) (or (= (store (store (store .cse0 |v_main_#t~malloc9.base_16| 1) |v_main_#t~malloc8.base_15| 0) |v_main_#t~malloc9.base_16| 0) |c_old(#valid)|) (not (= (select .cse0 |v_main_#t~malloc9.base_16|) 0)) (not (= 0 (select |c_#valid| |v_main_#t~malloc8.base_15|)))))) (= |c_#valid| |c_old(#valid)|)) is different from false [2018-04-11 20:50:00,680 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-04-11 20:50:00,680 INFO L93 Difference]: Finished difference Result 270 states and 296 transitions. [2018-04-11 20:50:00,680 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 14 states. [2018-04-11 20:50:00,681 INFO L78 Accepts]: Start accepts. Automaton has 16 states. Word has length 53 [2018-04-11 20:50:00,681 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-04-11 20:50:00,682 INFO L225 Difference]: With dead ends: 270 [2018-04-11 20:50:00,682 INFO L226 Difference]: Without dead ends: 257 [2018-04-11 20:50:00,682 INFO L567 BasicCegarLoop]: 0 DeclaredPredicates, 116 GetRequests, 92 SyntacticMatches, 2 SemanticMatches, 22 ConstructedPredicates, 5 IntricatePredicates, 0 DeprecatedPredicates, 55 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=73, Invalid=283, Unknown=6, NotChecked=190, Total=552 [2018-04-11 20:50:00,683 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 257 states. [2018-04-11 20:50:00,701 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 257 to 181. [2018-04-11 20:50:00,702 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 181 states. [2018-04-11 20:50:00,703 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 181 states to 181 states and 199 transitions. [2018-04-11 20:50:00,703 INFO L78 Accepts]: Start accepts. Automaton has 181 states and 199 transitions. Word has length 53 [2018-04-11 20:50:00,704 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-04-11 20:50:00,704 INFO L459 AbstractCegarLoop]: Abstraction has 181 states and 199 transitions. [2018-04-11 20:50:00,704 INFO L460 AbstractCegarLoop]: Interpolant automaton has 16 states. [2018-04-11 20:50:00,704 INFO L276 IsEmpty]: Start isEmpty. Operand 181 states and 199 transitions. [2018-04-11 20:50:00,705 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 54 [2018-04-11 20:50:00,705 INFO L347 BasicCegarLoop]: Found error trace [2018-04-11 20:50:00,705 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, 1] [2018-04-11 20:50:00,705 INFO L408 AbstractCegarLoop]: === Iteration 13 === [__U_MULTI_fopenbsd_cstrspn_alloca_true_valid_memsafety_true_termination_i__cstrspnErr1RequiresViolation, __U_MULTI_fopenbsd_cstrspn_alloca_true_valid_memsafety_true_termination_i__cstrspnErr3RequiresViolation, __U_MULTI_fopenbsd_cstrspn_alloca_true_valid_memsafety_true_termination_i__cstrspnErr2RequiresViolation, __U_MULTI_fopenbsd_cstrspn_alloca_true_valid_memsafety_true_termination_i__cstrspnErr0RequiresViolation, mainErr3RequiresViolation, mainErr1RequiresViolation, mainErr2RequiresViolation, mainErr4EnsuresViolationMEMORY_LEAK, mainErr0RequiresViolation]=== [2018-04-11 20:50:00,706 INFO L82 PathProgramCache]: Analyzing trace with hash -255199913, 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 20:50:00,712 INFO L68 tionRefinementEngine]: Using refinement strategy FixedRefinementStrategy [2018-04-11 20:50:00,733 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-04-11 20:50:00,736 INFO L270 TraceCheckSpWp]: Computing forward predicates... [2018-04-11 20:50:00,781 INFO L700 Elim1Store]: detected not equals via solver [2018-04-11 20:50:00,782 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 20:50:00,784 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 20:50:00,785 INFO L267 ElimStorePlain]: Start of recursive call 3: End of recursive call: and 1 xjuncts. [2018-04-11 20:50:00,792 INFO L267 ElimStorePlain]: Start of recursive call 2: 1 dim-1 vars, End of recursive call: and 1 xjuncts. [2018-04-11 20:50:00,796 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 20:50:00,796 INFO L202 ElimStorePlain]: Needed 3 recursive calls to eliminate 3 variables, input treesize:23, output treesize:15 [2018-04-11 20:50:00,865 WARN L1033 $PredicateComparison]: unable to prove that (exists ((|main_#t~malloc8.base| Int)) (let ((.cse0 (store |c_old(#valid)| |main_#t~malloc8.base| 1))) (and (= 0 (select .cse0 |c_main_#t~malloc9.base|)) (= |c_#valid| (store (store .cse0 |c_main_#t~malloc9.base| 1) |main_#t~malloc8.base| 0)) (= 0 (select |c_old(#valid)| |main_#t~malloc8.base|))))) is different from true [2018-04-11 20:50:00,869 WARN L1033 $PredicateComparison]: unable to prove that (exists ((|main_#t~malloc8.base| Int) (|main_#t~malloc9.base| Int)) (let ((.cse0 (store |c_old(#valid)| |main_#t~malloc8.base| 1))) (and (= 0 (select .cse0 |main_#t~malloc9.base|)) (= |c_#valid| (store (store (store .cse0 |main_#t~malloc9.base| 1) |main_#t~malloc8.base| 0) |main_#t~malloc9.base| 0)) (= 0 (select |c_old(#valid)| |main_#t~malloc8.base|))))) is different from true [2018-04-11 20:50:00,876 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 20:50:00,877 INFO L314 TraceCheckSpWp]: Computing backward predicates... [2018-04-11 20:50:00,914 WARN L1011 $PredicateComparison]: unable to prove that (forall ((|v_main_#t~malloc9.base_18| Int)) (or (not (= 0 (select |c_#valid| |v_main_#t~malloc9.base_18|))) (= (store (store (store |c_#valid| |v_main_#t~malloc9.base_18| 1) |c_main_#t~malloc8.base| 0) |v_main_#t~malloc9.base_18| 0) |c_old(#valid)|))) is different from false [2018-04-11 20:50:00,918 WARN L1011 $PredicateComparison]: unable to prove that (forall ((|v_main_#t~malloc9.base_18| Int) (|v_main_#t~malloc8.base_17| Int)) (let ((.cse0 (store |c_#valid| |v_main_#t~malloc8.base_17| 1))) (or (= (store (store (store .cse0 |v_main_#t~malloc9.base_18| 1) |v_main_#t~malloc8.base_17| 0) |v_main_#t~malloc9.base_18| 0) |c_old(#valid)|) (not (= 0 (select |c_#valid| |v_main_#t~malloc8.base_17|))) (not (= 0 (select .cse0 |v_main_#t~malloc9.base_18|)))))) is different from false [2018-04-11 20:50:00,942 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 20:50:00,969 INFO L320 seRefinementStrategy]: Constructing automaton from 2 perfect and 0 imperfect interpolant sequences. [2018-04-11 20:50:00,969 INFO L335 seRefinementStrategy]: Number of different interpolants: perfect sequences [11, 6] imperfect sequences [] total 15 [2018-04-11 20:50:00,970 INFO L442 AbstractCegarLoop]: Interpolant automaton has 16 states [2018-04-11 20:50:00,970 INFO L132 InterpolantAutomaton]: Constructing interpolant automaton starting with 16 interpolants. [2018-04-11 20:50:00,970 INFO L133 InterpolantAutomaton]: CoverageRelationStatistics Valid=37, Invalid=107, Unknown=4, NotChecked=92, Total=240 [2018-04-11 20:50:00,970 INFO L87 Difference]: Start difference. First operand 181 states and 199 transitions. Second operand 16 states. [2018-04-11 20:50:00,992 WARN L1011 $PredicateComparison]: unable to prove that (and (= |c_#valid| |c_old(#valid)|) (forall ((|v_main_#t~malloc9.base_18| Int) (|v_main_#t~malloc8.base_17| Int)) (let ((.cse0 (store |c_#valid| |v_main_#t~malloc8.base_17| 1))) (or (= (store (store (store .cse0 |v_main_#t~malloc9.base_18| 1) |v_main_#t~malloc8.base_17| 0) |v_main_#t~malloc9.base_18| 0) |c_old(#valid)|) (not (= 0 (select |c_#valid| |v_main_#t~malloc8.base_17|))) (not (= 0 (select .cse0 |v_main_#t~malloc9.base_18|))))))) is different from false [2018-04-11 20:50:01,419 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-04-11 20:50:01,419 INFO L93 Difference]: Finished difference Result 270 states and 296 transitions. [2018-04-11 20:50:01,420 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 14 states. [2018-04-11 20:50:01,420 INFO L78 Accepts]: Start accepts. Automaton has 16 states. Word has length 53 [2018-04-11 20:50:01,420 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-04-11 20:50:01,421 INFO L225 Difference]: With dead ends: 270 [2018-04-11 20:50:01,422 INFO L226 Difference]: Without dead ends: 257 [2018-04-11 20:50:01,422 INFO L567 BasicCegarLoop]: 0 DeclaredPredicates, 116 GetRequests, 92 SyntacticMatches, 2 SemanticMatches, 22 ConstructedPredicates, 5 IntricatePredicates, 0 DeprecatedPredicates, 55 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=73, Invalid=283, Unknown=6, NotChecked=190, Total=552 [2018-04-11 20:50:01,422 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 257 states. [2018-04-11 20:50:01,438 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 257 to 181. [2018-04-11 20:50:01,438 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 181 states. [2018-04-11 20:50:01,439 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 181 states to 181 states and 199 transitions. [2018-04-11 20:50:01,439 INFO L78 Accepts]: Start accepts. Automaton has 181 states and 199 transitions. Word has length 53 [2018-04-11 20:50:01,439 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-04-11 20:50:01,439 INFO L459 AbstractCegarLoop]: Abstraction has 181 states and 199 transitions. [2018-04-11 20:50:01,439 INFO L460 AbstractCegarLoop]: Interpolant automaton has 16 states. [2018-04-11 20:50:01,439 INFO L276 IsEmpty]: Start isEmpty. Operand 181 states and 199 transitions. [2018-04-11 20:50:01,440 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 55 [2018-04-11 20:50:01,440 INFO L347 BasicCegarLoop]: Found error trace [2018-04-11 20:50:01,440 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, 1, 1, 1, 1, 1, 1, 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 20:50:01,440 INFO L408 AbstractCegarLoop]: === Iteration 14 === [__U_MULTI_fopenbsd_cstrspn_alloca_true_valid_memsafety_true_termination_i__cstrspnErr1RequiresViolation, __U_MULTI_fopenbsd_cstrspn_alloca_true_valid_memsafety_true_termination_i__cstrspnErr3RequiresViolation, __U_MULTI_fopenbsd_cstrspn_alloca_true_valid_memsafety_true_termination_i__cstrspnErr2RequiresViolation, __U_MULTI_fopenbsd_cstrspn_alloca_true_valid_memsafety_true_termination_i__cstrspnErr0RequiresViolation, mainErr3RequiresViolation, mainErr1RequiresViolation, mainErr2RequiresViolation, mainErr4EnsuresViolationMEMORY_LEAK, mainErr0RequiresViolation]=== [2018-04-11 20:50:01,440 INFO L82 PathProgramCache]: Analyzing trace with hash -1150338933, 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 20:50:01,446 INFO L68 tionRefinementEngine]: Using refinement strategy FixedRefinementStrategy [2018-04-11 20:50:01,462 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-04-11 20:50:01,464 INFO L270 TraceCheckSpWp]: Computing forward predicates... [2018-04-11 20:50:01,495 INFO L700 Elim1Store]: detected not equals via solver [2018-04-11 20:50:01,495 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 20:50:01,498 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 20:50:01,498 INFO L267 ElimStorePlain]: Start of recursive call 3: End of recursive call: and 1 xjuncts. [2018-04-11 20:50:01,525 INFO L267 ElimStorePlain]: Start of recursive call 2: 1 dim-1 vars, End of recursive call: and 1 xjuncts. [2018-04-11 20:50:01,530 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 20:50:01,530 INFO L202 ElimStorePlain]: Needed 3 recursive calls to eliminate 3 variables, input treesize:23, output treesize:15 [2018-04-11 20:50:01,604 WARN L1033 $PredicateComparison]: unable to prove that (exists ((|main_#t~malloc8.base| Int)) (let ((.cse0 (store |c_old(#valid)| |main_#t~malloc8.base| 1))) (and (= 0 (select .cse0 |c_main_#t~malloc9.base|)) (= |c_#valid| (store (store .cse0 |c_main_#t~malloc9.base| 1) |main_#t~malloc8.base| 0)) (= 0 (select |c_old(#valid)| |main_#t~malloc8.base|))))) is different from true [2018-04-11 20:50:01,608 WARN L1033 $PredicateComparison]: unable to prove that (exists ((|main_#t~malloc8.base| Int) (|main_#t~malloc9.base| Int)) (let ((.cse0 (store |c_old(#valid)| |main_#t~malloc8.base| 1))) (and (= 0 (select .cse0 |main_#t~malloc9.base|)) (= |c_#valid| (store (store (store .cse0 |main_#t~malloc9.base| 1) |main_#t~malloc8.base| 0) |main_#t~malloc9.base| 0)) (= 0 (select |c_old(#valid)| |main_#t~malloc8.base|))))) is different from true [2018-04-11 20:50:01,615 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 20:50:01,615 INFO L314 TraceCheckSpWp]: Computing backward predicates... [2018-04-11 20:50:01,644 WARN L1011 $PredicateComparison]: unable to prove that (forall ((|v_main_#t~malloc9.base_20| Int)) (or (= (store (store (store |c_#valid| |v_main_#t~malloc9.base_20| 1) |c_main_#t~malloc8.base| 0) |v_main_#t~malloc9.base_20| 0) |c_old(#valid)|) (not (= 0 (select |c_#valid| |v_main_#t~malloc9.base_20|))))) is different from false [2018-04-11 20:50:01,647 WARN L1011 $PredicateComparison]: unable to prove that (forall ((|v_main_#t~malloc8.base_19| Int) (|v_main_#t~malloc9.base_20| Int)) (let ((.cse0 (store |c_#valid| |v_main_#t~malloc8.base_19| 1))) (or (= (store (store (store .cse0 |v_main_#t~malloc9.base_20| 1) |v_main_#t~malloc8.base_19| 0) |v_main_#t~malloc9.base_20| 0) |c_old(#valid)|) (not (= (select .cse0 |v_main_#t~malloc9.base_20|) 0)) (not (= 0 (select |c_#valid| |v_main_#t~malloc8.base_19|)))))) is different from false [2018-04-11 20:50:01,662 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 20:50:01,682 INFO L320 seRefinementStrategy]: Constructing automaton from 2 perfect and 0 imperfect interpolant sequences. [2018-04-11 20:50:01,682 INFO L335 seRefinementStrategy]: Number of different interpolants: perfect sequences [11, 6] imperfect sequences [] total 15 [2018-04-11 20:50:01,682 INFO L442 AbstractCegarLoop]: Interpolant automaton has 16 states [2018-04-11 20:50:01,682 INFO L132 InterpolantAutomaton]: Constructing interpolant automaton starting with 16 interpolants. [2018-04-11 20:50:01,682 INFO L133 InterpolantAutomaton]: CoverageRelationStatistics Valid=37, Invalid=107, Unknown=4, NotChecked=92, Total=240 [2018-04-11 20:50:01,683 INFO L87 Difference]: Start difference. First operand 181 states and 199 transitions. Second operand 16 states. [2018-04-11 20:50:01,692 WARN L1011 $PredicateComparison]: unable to prove that (and (forall ((|v_main_#t~malloc8.base_19| Int) (|v_main_#t~malloc9.base_20| Int)) (let ((.cse0 (store |c_#valid| |v_main_#t~malloc8.base_19| 1))) (or (= (store (store (store .cse0 |v_main_#t~malloc9.base_20| 1) |v_main_#t~malloc8.base_19| 0) |v_main_#t~malloc9.base_20| 0) |c_old(#valid)|) (not (= (select .cse0 |v_main_#t~malloc9.base_20|) 0)) (not (= 0 (select |c_#valid| |v_main_#t~malloc8.base_19|)))))) (= |c_#valid| |c_old(#valid)|)) is different from false [2018-04-11 20:50:02,044 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-04-11 20:50:02,044 INFO L93 Difference]: Finished difference Result 183 states and 199 transitions. [2018-04-11 20:50:02,044 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 14 states. [2018-04-11 20:50:02,044 INFO L78 Accepts]: Start accepts. Automaton has 16 states. Word has length 54 [2018-04-11 20:50:02,045 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-04-11 20:50:02,045 INFO L225 Difference]: With dead ends: 183 [2018-04-11 20:50:02,045 INFO L226 Difference]: Without dead ends: 170 [2018-04-11 20:50:02,046 INFO L567 BasicCegarLoop]: 0 DeclaredPredicates, 118 GetRequests, 94 SyntacticMatches, 2 SemanticMatches, 22 ConstructedPredicates, 5 IntricatePredicates, 0 DeprecatedPredicates, 55 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=73, Invalid=283, Unknown=6, NotChecked=190, Total=552 [2018-04-11 20:50:02,046 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 170 states. [2018-04-11 20:50:02,057 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 170 to 92. [2018-04-11 20:50:02,057 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 92 states. [2018-04-11 20:50:02,058 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 92 states to 92 states and 99 transitions. [2018-04-11 20:50:02,058 INFO L78 Accepts]: Start accepts. Automaton has 92 states and 99 transitions. Word has length 54 [2018-04-11 20:50:02,058 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-04-11 20:50:02,058 INFO L459 AbstractCegarLoop]: Abstraction has 92 states and 99 transitions. [2018-04-11 20:50:02,058 INFO L460 AbstractCegarLoop]: Interpolant automaton has 16 states. [2018-04-11 20:50:02,058 INFO L276 IsEmpty]: Start isEmpty. Operand 92 states and 99 transitions. [2018-04-11 20:50:02,059 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 57 [2018-04-11 20:50:02,059 INFO L347 BasicCegarLoop]: Found error trace [2018-04-11 20:50:02,059 INFO L355 BasicCegarLoop]: trace histogram [3, 3, 3, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2018-04-11 20:50:02,059 INFO L408 AbstractCegarLoop]: === Iteration 15 === [__U_MULTI_fopenbsd_cstrspn_alloca_true_valid_memsafety_true_termination_i__cstrspnErr1RequiresViolation, __U_MULTI_fopenbsd_cstrspn_alloca_true_valid_memsafety_true_termination_i__cstrspnErr3RequiresViolation, __U_MULTI_fopenbsd_cstrspn_alloca_true_valid_memsafety_true_termination_i__cstrspnErr2RequiresViolation, __U_MULTI_fopenbsd_cstrspn_alloca_true_valid_memsafety_true_termination_i__cstrspnErr0RequiresViolation, mainErr3RequiresViolation, mainErr1RequiresViolation, mainErr2RequiresViolation, mainErr4EnsuresViolationMEMORY_LEAK, mainErr0RequiresViolation]=== [2018-04-11 20:50:02,060 INFO L82 PathProgramCache]: Analyzing trace with hash 1513716263, now seen corresponding path program 2 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 20:50:02,068 INFO L68 tionRefinementEngine]: Using refinement strategy FixedRefinementStrategy [2018-04-11 20:50:02,085 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-04-11 20:50:02,088 INFO L270 TraceCheckSpWp]: Computing forward predicates... [2018-04-11 20:50:02,090 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 20:50:02,090 INFO L267 ElimStorePlain]: Start of recursive call 2: End of recursive call: and 1 xjuncts. [2018-04-11 20:50:02,093 INFO L267 ElimStorePlain]: Start of recursive call 1: 1 dim-1 vars, End of recursive call: and 1 xjuncts. [2018-04-11 20:50:02,093 INFO L202 ElimStorePlain]: Needed 2 recursive calls to eliminate 1 variables, input treesize:10, output treesize:9 [2018-04-11 20:50:02,102 INFO L477 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 15 treesize of output 12 [2018-04-11 20:50:02,104 INFO L477 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 0 select indices, 0 select index equivalence classes, 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 20:50:02,105 INFO L267 ElimStorePlain]: Start of recursive call 3: End of recursive call: and 1 xjuncts. [2018-04-11 20:50:02,106 INFO L267 ElimStorePlain]: Start of recursive call 2: 1 dim-1 vars, End of recursive call: and 1 xjuncts. [2018-04-11 20:50:02,107 INFO L267 ElimStorePlain]: Start of recursive call 1: 1 dim-2 vars, End of recursive call: and 1 xjuncts. [2018-04-11 20:50:02,107 INFO L202 ElimStorePlain]: Needed 3 recursive calls to eliminate 1 variables, input treesize:15, output treesize:11 [2018-04-11 20:50:02,187 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 20:50:02,194 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 20:50:02,195 INFO L267 ElimStorePlain]: Start of recursive call 3: End of recursive call: and 2 xjuncts. [2018-04-11 20:50:02,198 INFO L267 ElimStorePlain]: Start of recursive call 2: 1 dim-1 vars, End of recursive call: and 2 xjuncts. [2018-04-11 20:50:02,204 INFO L267 ElimStorePlain]: Start of recursive call 1: 1 dim-2 vars, End of recursive call: and 2 xjuncts. [2018-04-11 20:50:02,204 INFO L202 ElimStorePlain]: Needed 3 recursive calls to eliminate 1 variables, input treesize:29, output treesize:32 [2018-04-11 20:50:02,288 INFO L134 CoverageAnalysis]: Checked inductivity of 17 backedges. 4 proven. 13 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-04-11 20:50:02,288 INFO L314 TraceCheckSpWp]: Computing backward predicates... [2018-04-11 20:50:02,645 INFO L477 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 0 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 15 treesize of output 13 [2018-04-11 20:50:02,657 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 20:50:02,658 INFO L267 ElimStorePlain]: Start of recursive call 3: End of recursive call: and 1 xjuncts. [2018-04-11 20:50:02,659 INFO L267 ElimStorePlain]: Start of recursive call 2: 1 dim-1 vars, End of recursive call: and 1 xjuncts. [2018-04-11 20:50:02,664 INFO L267 ElimStorePlain]: Start of recursive call 1: 1 dim-0 vars, 1 dim-2 vars, End of recursive call: and 2 xjuncts. [2018-04-11 20:50:02,664 INFO L202 ElimStorePlain]: Needed 3 recursive calls to eliminate 2 variables, input treesize:33, output treesize:35 [2018-04-11 20:50:02,744 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 20:50:02,764 INFO L320 seRefinementStrategy]: Constructing automaton from 0 perfect and 2 imperfect interpolant sequences. [2018-04-11 20:50:02,765 INFO L335 seRefinementStrategy]: Number of different interpolants: perfect sequences [] imperfect sequences [16, 16] total 31 [2018-04-11 20:50:02,765 INFO L442 AbstractCegarLoop]: Interpolant automaton has 32 states [2018-04-11 20:50:02,765 INFO L132 InterpolantAutomaton]: Constructing interpolant automaton starting with 32 interpolants. [2018-04-11 20:50:02,765 INFO L133 InterpolantAutomaton]: CoverageRelationStatistics Valid=102, Invalid=890, Unknown=0, NotChecked=0, Total=992 [2018-04-11 20:50:02,765 INFO L87 Difference]: Start difference. First operand 92 states and 99 transitions. Second operand 32 states. [2018-04-11 20:50:03,789 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-04-11 20:50:03,789 INFO L93 Difference]: Finished difference Result 109 states and 116 transitions. [2018-04-11 20:50:03,789 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 23 states. [2018-04-11 20:50:03,789 INFO L78 Accepts]: Start accepts. Automaton has 32 states. Word has length 56 [2018-04-11 20:50:03,790 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-04-11 20:50:03,790 INFO L225 Difference]: With dead ends: 109 [2018-04-11 20:50:03,790 INFO L226 Difference]: Without dead ends: 108 [2018-04-11 20:50:03,791 INFO L567 BasicCegarLoop]: 0 DeclaredPredicates, 130 GetRequests, 81 SyntacticMatches, 0 SemanticMatches, 49 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 313 ImplicationChecksByTransitivity, 1.2s TimeCoverageRelationStatistics Valid=524, Invalid=2026, Unknown=0, NotChecked=0, Total=2550 [2018-04-11 20:50:03,791 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 108 states. [2018-04-11 20:50:03,800 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 108 to 65. [2018-04-11 20:50:03,800 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 65 states. [2018-04-11 20:50:03,800 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 65 states to 65 states and 69 transitions. [2018-04-11 20:50:03,801 INFO L78 Accepts]: Start accepts. Automaton has 65 states and 69 transitions. Word has length 56 [2018-04-11 20:50:03,801 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-04-11 20:50:03,801 INFO L459 AbstractCegarLoop]: Abstraction has 65 states and 69 transitions. [2018-04-11 20:50:03,801 INFO L460 AbstractCegarLoop]: Interpolant automaton has 32 states. [2018-04-11 20:50:03,801 INFO L276 IsEmpty]: Start isEmpty. Operand 65 states and 69 transitions. [2018-04-11 20:50:03,801 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 63 [2018-04-11 20:50:03,801 INFO L347 BasicCegarLoop]: Found error trace [2018-04-11 20:50:03,802 INFO L355 BasicCegarLoop]: trace histogram [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] [2018-04-11 20:50:03,802 INFO L408 AbstractCegarLoop]: === Iteration 16 === [__U_MULTI_fopenbsd_cstrspn_alloca_true_valid_memsafety_true_termination_i__cstrspnErr1RequiresViolation, __U_MULTI_fopenbsd_cstrspn_alloca_true_valid_memsafety_true_termination_i__cstrspnErr3RequiresViolation, __U_MULTI_fopenbsd_cstrspn_alloca_true_valid_memsafety_true_termination_i__cstrspnErr2RequiresViolation, __U_MULTI_fopenbsd_cstrspn_alloca_true_valid_memsafety_true_termination_i__cstrspnErr0RequiresViolation, mainErr3RequiresViolation, mainErr1RequiresViolation, mainErr2RequiresViolation, mainErr4EnsuresViolationMEMORY_LEAK, mainErr0RequiresViolation]=== [2018-04-11 20:50:03,802 INFO L82 PathProgramCache]: Analyzing trace with hash 381585505, now seen corresponding path program 2 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 20:50:03,810 INFO L68 tionRefinementEngine]: Using refinement strategy FixedRefinementStrategy [2018-04-11 20:50:03,831 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-04-11 20:50:03,835 INFO L270 TraceCheckSpWp]: Computing forward predicates... [2018-04-11 20:50:03,838 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 20:50:03,839 INFO L267 ElimStorePlain]: Start of recursive call 2: End of recursive call: and 1 xjuncts. [2018-04-11 20:50:03,844 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 20:50:03,844 INFO L267 ElimStorePlain]: Start of recursive call 3: End of recursive call: and 1 xjuncts. [2018-04-11 20:50:03,848 INFO L267 ElimStorePlain]: Start of recursive call 1: 2 dim-1 vars, End of recursive call: and 1 xjuncts. [2018-04-11 20:50:03,848 INFO L202 ElimStorePlain]: Needed 3 recursive calls to eliminate 2 variables, input treesize:16, output treesize:14 [2018-04-11 20:50:03,861 INFO L700 Elim1Store]: detected not equals via solver [2018-04-11 20:50:03,862 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 20:50:03,863 INFO L267 ElimStorePlain]: Start of recursive call 2: End of recursive call: and 1 xjuncts. [2018-04-11 20:50:03,870 INFO L700 Elim1Store]: detected not equals via solver [2018-04-11 20:50:03,871 INFO L700 Elim1Store]: detected not equals via solver [2018-04-11 20:50:03,871 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 20:50:03,871 INFO L267 ElimStorePlain]: Start of recursive call 3: End of recursive call: and 1 xjuncts. [2018-04-11 20:50:03,875 INFO L267 ElimStorePlain]: Start of recursive call 1: 2 dim-1 vars, End of recursive call: and 1 xjuncts. [2018-04-11 20:50:03,875 INFO L202 ElimStorePlain]: Needed 3 recursive calls to eliminate 2 variables, input treesize:25, output treesize:18 [2018-04-11 20:50:03,892 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 20:50:03,893 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 20:50:03,894 INFO L267 ElimStorePlain]: Start of recursive call 3: End of recursive call: and 1 xjuncts. [2018-04-11 20:50:03,895 INFO L267 ElimStorePlain]: Start of recursive call 2: 1 dim-1 vars, End of recursive call: and 1 xjuncts. [2018-04-11 20:50:03,898 INFO L267 ElimStorePlain]: Start of recursive call 1: 1 dim-2 vars, End of recursive call: and 1 xjuncts. [2018-04-11 20:50:03,898 INFO L202 ElimStorePlain]: Needed 3 recursive calls to eliminate 1 variables, input treesize:25, output treesize:21 [2018-04-11 20:50:03,911 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 20:50:03,913 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 20:50:03,913 INFO L267 ElimStorePlain]: Start of recursive call 3: End of recursive call: and 1 xjuncts. [2018-04-11 20:50:03,917 INFO L267 ElimStorePlain]: Start of recursive call 2: 1 dim-1 vars, End of recursive call: and 1 xjuncts. [2018-04-11 20:50:03,921 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 20:50:03,922 INFO L202 ElimStorePlain]: Needed 3 recursive calls to eliminate 2 variables, input treesize:32, output treesize:28 [2018-04-11 20:50:04,524 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 48 treesize of output 42 [2018-04-11 20:50:04,530 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 20:50:04,530 INFO L267 ElimStorePlain]: Start of recursive call 3: End of recursive call: and 2 xjuncts. [2018-04-11 20:50:04,540 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 22 treesize of output 14 [2018-04-11 20:50:04,540 INFO L267 ElimStorePlain]: Start of recursive call 4: End of recursive call: and 1 xjuncts. [2018-04-11 20:50:04,546 INFO L267 ElimStorePlain]: Start of recursive call 2: 2 dim-1 vars, End of recursive call: and 2 xjuncts. [2018-04-11 20:50:04,562 INFO L267 ElimStorePlain]: Start of recursive call 1: 3 dim-0 vars, 1 dim-2 vars, End of recursive call: and 2 xjuncts. [2018-04-11 20:50:04,562 INFO L202 ElimStorePlain]: Needed 4 recursive calls to eliminate 4 variables, input treesize:60, output treesize:40 [2018-04-11 20:50:04,728 INFO L134 CoverageAnalysis]: Checked inductivity of 22 backedges. 7 proven. 15 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-04-11 20:50:04,728 INFO L314 TraceCheckSpWp]: Computing backward predicates... [2018-04-11 20:50:06,267 INFO L477 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 0 stores, 2 select indices, 2 select index equivalence classes, 0 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 1 case distinctions, treesize of input 26 treesize of output 28 [2018-04-11 20:50:06,295 INFO L477 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 2 select indices, 2 select index equivalence classes, 2 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 0 case distinctions, treesize of input 21 treesize of output 15 [2018-04-11 20:50:06,296 INFO L267 ElimStorePlain]: Start of recursive call 3: End of recursive call: and 1 xjuncts. [2018-04-11 20:50:06,303 INFO L267 ElimStorePlain]: Start of recursive call 2: 3 dim-1 vars, End of recursive call: and 1 xjuncts. [2018-04-11 20:50:06,311 INFO L267 ElimStorePlain]: Start of recursive call 1: 2 dim-0 vars, 1 dim-2 vars, End of recursive call: and 3 xjuncts. [2018-04-11 20:50:06,312 INFO L202 ElimStorePlain]: Needed 3 recursive calls to eliminate 3 variables, input treesize:65, output treesize:74 [2018-04-11 20:50:06,851 WARN L148 SmtUtils]: Spent 362ms on a formula simplification that was a NOOP. DAG size: 34 [2018-04-11 20:50:07,346 WARN L148 SmtUtils]: Spent 412ms on a formula simplification that was a NOOP. DAG size: 34 [2018-04-11 20:50:07,365 INFO L134 CoverageAnalysis]: Checked inductivity of 22 backedges. 0 proven. 22 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-04-11 20:50:07,384 INFO L320 seRefinementStrategy]: Constructing automaton from 0 perfect and 2 imperfect interpolant sequences. [2018-04-11 20:50:07,385 INFO L335 seRefinementStrategy]: Number of different interpolants: perfect sequences [] imperfect sequences [29, 27] total 55 [2018-04-11 20:50:07,385 INFO L442 AbstractCegarLoop]: Interpolant automaton has 56 states [2018-04-11 20:50:07,385 INFO L132 InterpolantAutomaton]: Constructing interpolant automaton starting with 56 interpolants. [2018-04-11 20:50:07,386 INFO L133 InterpolantAutomaton]: CoverageRelationStatistics Valid=239, Invalid=2841, Unknown=0, NotChecked=0, Total=3080 [2018-04-11 20:50:07,386 INFO L87 Difference]: Start difference. First operand 65 states and 69 transitions. Second operand 56 states. [2018-04-11 20:50:12,532 WARN L151 SmtUtils]: Spent 105ms on a formula simplification. DAG size of input: 100 DAG size of output 71 [2018-04-11 20:50:12,868 WARN L151 SmtUtils]: Spent 118ms on a formula simplification. DAG size of input: 85 DAG size of output 66 [2018-04-11 20:50:14,955 WARN L151 SmtUtils]: Spent 105ms on a formula simplification. DAG size of input: 89 DAG size of output 71 [2018-04-11 20:50:16,098 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-04-11 20:50:16,098 INFO L93 Difference]: Finished difference Result 114 states and 121 transitions. [2018-04-11 20:50:16,098 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 61 states. [2018-04-11 20:50:16,098 INFO L78 Accepts]: Start accepts. Automaton has 56 states. Word has length 62 [2018-04-11 20:50:16,099 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-04-11 20:50:16,099 INFO L225 Difference]: With dead ends: 114 [2018-04-11 20:50:16,099 INFO L226 Difference]: Without dead ends: 0 [2018-04-11 20:50:16,102 INFO L567 BasicCegarLoop]: 0 DeclaredPredicates, 180 GetRequests, 65 SyntacticMatches, 4 SemanticMatches, 111 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 2267 ImplicationChecksByTransitivity, 10.9s TimeCoverageRelationStatistics Valid=2069, Invalid=10586, Unknown=1, NotChecked=0, Total=12656 [2018-04-11 20:50:16,102 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 0 states. [2018-04-11 20:50:16,102 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 0 to 0. [2018-04-11 20:50:16,102 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 0 states. [2018-04-11 20:50:16,102 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 0 states to 0 states and 0 transitions. [2018-04-11 20:50:16,102 INFO L78 Accepts]: Start accepts. Automaton has 0 states and 0 transitions. Word has length 62 [2018-04-11 20:50:16,102 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-04-11 20:50:16,102 INFO L459 AbstractCegarLoop]: Abstraction has 0 states and 0 transitions. [2018-04-11 20:50:16,102 INFO L460 AbstractCegarLoop]: Interpolant automaton has 56 states. [2018-04-11 20:50:16,102 INFO L276 IsEmpty]: Start isEmpty. Operand 0 states and 0 transitions. [2018-04-11 20:50:16,103 INFO L282 IsEmpty]: Finished isEmpty. No accepting run. [2018-04-11 20:50:16,106 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends 0 states and 0 transitions. [2018-04-11 20:50:16,368 WARN L151 SmtUtils]: Spent 186ms on a formula simplification. DAG size of input: 261 DAG size of output 248 [2018-04-11 20:50:16,746 WARN L151 SmtUtils]: Spent 376ms on a formula simplification. DAG size of input: 298 DAG size of output 288 [2018-04-11 20:50:16,902 WARN L151 SmtUtils]: Spent 144ms on a formula simplification. DAG size of input: 152 DAG size of output 1 [2018-04-11 20:52:14,834 WARN L151 SmtUtils]: Spent 117904ms on a formula simplification. DAG size of input: 277 DAG size of output 149 Received shutdown request... [2018-04-11 20:54:24,588 INFO L256 ToolchainWalker]: Toolchain cancelled while executing plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction. Reason: Timeout or Toolchain cancelled by user [2018-04-11 20:54:24,589 INFO L168 Benchmark]: Toolchain (without parser) took 278795.01 ms. Allocated memory was 307.8 MB in the beginning and 633.3 MB in the end (delta: 325.6 MB). Free memory was 245.0 MB in the beginning and 411.4 MB in the end (delta: -166.4 MB). Peak memory consumption was 277.1 MB. Max. memory is 5.3 GB. [2018-04-11 20:54:24,590 INFO L168 Benchmark]: CDTParser took 0.19 ms. Allocated memory is still 307.8 MB. Free memory is still 269.1 MB. There was no memory consumed. Max. memory is 5.3 GB. [2018-04-11 20:54:24,590 INFO L168 Benchmark]: CACSL2BoogieTranslator took 357.97 ms. Allocated memory is still 307.8 MB. Free memory was 245.0 MB in the beginning and 221.1 MB in the end (delta: 23.9 MB). Peak memory consumption was 23.9 MB. Max. memory is 5.3 GB. [2018-04-11 20:54:24,590 INFO L168 Benchmark]: Boogie Preprocessor took 62.72 ms. Allocated memory is still 307.8 MB. Free memory was 221.1 MB in the beginning and 217.1 MB in the end (delta: 4.0 MB). Peak memory consumption was 4.0 MB. Max. memory is 5.3 GB. [2018-04-11 20:54:24,590 INFO L168 Benchmark]: RCFGBuilder took 475.56 ms. Allocated memory was 307.8 MB in the beginning and 467.7 MB in the end (delta: 159.9 MB). Free memory was 217.1 MB in the beginning and 403.8 MB in the end (delta: -186.6 MB). Peak memory consumption was 20.0 MB. Max. memory is 5.3 GB. [2018-04-11 20:54:24,591 INFO L168 Benchmark]: TraceAbstraction took 277893.30 ms. Allocated memory was 467.7 MB in the beginning and 633.3 MB in the end (delta: 165.7 MB). Free memory was 403.8 MB in the beginning and 411.4 MB in the end (delta: -7.6 MB). Peak memory consumption was 275.9 MB. Max. memory is 5.3 GB. [2018-04-11 20:54:24,593 INFO L344 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.19 ms. Allocated memory is still 307.8 MB. Free memory is still 269.1 MB. There was no memory consumed. Max. memory is 5.3 GB. * CACSL2BoogieTranslator took 357.97 ms. Allocated memory is still 307.8 MB. Free memory was 245.0 MB in the beginning and 221.1 MB in the end (delta: 23.9 MB). Peak memory consumption was 23.9 MB. Max. memory is 5.3 GB. * Boogie Preprocessor took 62.72 ms. Allocated memory is still 307.8 MB. Free memory was 221.1 MB in the beginning and 217.1 MB in the end (delta: 4.0 MB). Peak memory consumption was 4.0 MB. Max. memory is 5.3 GB. * RCFGBuilder took 475.56 ms. Allocated memory was 307.8 MB in the beginning and 467.7 MB in the end (delta: 159.9 MB). Free memory was 217.1 MB in the beginning and 403.8 MB in the end (delta: -186.6 MB). Peak memory consumption was 20.0 MB. Max. memory is 5.3 GB. * TraceAbstraction took 277893.30 ms. Allocated memory was 467.7 MB in the beginning and 633.3 MB in the end (delta: 165.7 MB). Free memory was 403.8 MB in the beginning and 411.4 MB in the end (delta: -7.6 MB). Peak memory consumption was 275.9 MB. Max. memory is 5.3 GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - PositiveResult [Line: 546]: pointer dereference always succeeds For all program executions holds that pointer dereference always succeeds at this location - PositiveResult [Line: 547]: pointer dereference always succeeds For all program executions holds that pointer dereference always succeeds at this location - PositiveResult [Line: 547]: pointer dereference always succeeds For all program executions holds that pointer dereference always succeeds at this location - PositiveResult [Line: 546]: pointer dereference always succeeds For all program executions holds that pointer dereference always succeeds at this location - PositiveResult [Line: 564]: pointer dereference always succeeds For all program executions holds that pointer dereference always succeeds at this location - PositiveResult [Line: 563]: pointer dereference always succeeds For all program executions holds that pointer dereference always succeeds at this location - PositiveResult [Line: 564]: pointer dereference always succeeds For all program executions holds that pointer dereference always succeeds at this location - PositiveResult [Line: 552]: all allocated memory was freed For all program executions holds that all allocated memory was freed at this location - PositiveResult [Line: 563]: pointer dereference always succeeds For all program executions holds that pointer dereference always succeeds at this location - TimeoutResult: Timeout (de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction) Toolchain cancelled while SimplifyDDAWithTimeout was simplifying term of DAG size 313. RESULT: Ultimate could not prove your program: Timeout Written .csv to /storage/ultimate/releaseScripts/default/UAutomizer-linux/../../../releaseScripts/default/UAutomizer-linux/csv/openbsd_cstrspn-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_20-54-24-599.csv Completed graceful shutdown