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_cstpcpy-alloca_true-valid-memsafety_true-termination.i -------------------------------------------------------------------------------- This is Ultimate 0.1.23-835382a-m [2018-04-05 16:04:50,768 INFO L170 SettingsManager]: Resetting all preferences to default values... [2018-04-05 16:04:50,775 INFO L174 SettingsManager]: Resetting UltimateCore preferences to default values [2018-04-05 16:04:50,837 INFO L177 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... 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[2018-04-05 16:04:50,892 INFO L174 SettingsManager]: Resetting LTL2Aut preferences to default values [2018-04-05 16:04:50,893 INFO L174 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2018-04-05 16:04:50,904 INFO L174 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2018-04-05 16:04:50,914 INFO L174 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2018-04-05 16:04:50,916 INFO L174 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2018-04-05 16:04:50,933 INFO L174 SettingsManager]: Resetting CodeCheck preferences to default values [2018-04-05 16:04:50,943 INFO L174 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2018-04-05 16:04:50,944 INFO L174 SettingsManager]: Resetting RCFGBuilder preferences to default values [2018-04-05 16:04:50,945 INFO L174 SettingsManager]: Resetting TraceAbstraction preferences to default values [2018-04-05 16:04:50,951 INFO L177 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... 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[2018-04-05 16:04:50,978 INFO L98 SettingsManager]: Beginning loading settings from /storage/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/settings/ai/eq-bench/svcomp-DerefFreeMemtrack-32bit-Automizer_Fixed_noBitfields+AI_EQ_SS.epf [2018-04-05 16:04:51,096 INFO L110 SettingsManager]: Loading preferences was successful [2018-04-05 16:04:51,096 INFO L112 SettingsManager]: Preferences different from defaults after loading the file: [2018-04-05 16:04:51,097 INFO L131 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2018-04-05 16:04:51,097 INFO L133 SettingsManager]: * ultimate.logging.details=de.uni_freiburg.informatik.ultimate.plugins.icfgtransformation=DEBUG; [2018-04-05 16:04:51,097 INFO L131 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2018-04-05 16:04:51,098 INFO L133 SettingsManager]: * to procedures, called more than once=true [2018-04-05 16:04:51,098 INFO L131 SettingsManager]: Preferences of Abstract Interpretation differ from their defaults: [2018-04-05 16:04:51,098 INFO L133 SettingsManager]: * Abstract domain for RCFG-of-the-future=VPDomain [2018-04-05 16:04:51,098 INFO L133 SettingsManager]: * Use the RCFG-of-the-future interface=true [2018-04-05 16:04:51,103 INFO L131 SettingsManager]: Preferences of LTL2Aut differ from their defaults: [2018-04-05 16:04:51,103 INFO L133 SettingsManager]: * Property to check=[] a a: x > 42 [2018-04-05 16:04:51,104 INFO L131 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2018-04-05 16:04:51,104 INFO L133 SettingsManager]: * sizeof long=4 [2018-04-05 16:04:51,104 INFO L133 SettingsManager]: * Check unreachability of error function in SV-COMP mode=false [2018-04-05 16:04:51,104 INFO L133 SettingsManager]: * Overapproximate operations on floating types=true [2018-04-05 16:04:51,104 INFO L133 SettingsManager]: * sizeof POINTER=4 [2018-04-05 16:04:51,104 INFO L133 SettingsManager]: * Check division by zero=IGNORE [2018-04-05 16:04:51,105 INFO L133 SettingsManager]: * Check for the main procedure if all allocated memory was freed=true [2018-04-05 16:04:51,105 INFO L133 SettingsManager]: * SV-COMP memtrack compatibility mode=true [2018-04-05 16:04:51,105 INFO L133 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2018-04-05 16:04:51,105 INFO L133 SettingsManager]: * sizeof long double=12 [2018-04-05 16:04:51,106 INFO L131 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2018-04-05 16:04:51,106 INFO L133 SettingsManager]: * Size of a code block=SingleStatement [2018-04-05 16:04:51,106 INFO L133 SettingsManager]: * Add additional assume for each assert=false [2018-04-05 16:04:51,106 INFO L133 SettingsManager]: * SMT solver=External_DefaultMode [2018-04-05 16:04:51,106 INFO L133 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2018-04-05 16:04:51,107 INFO L131 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2018-04-05 16:04:51,119 INFO L133 SettingsManager]: * Interpolant automaton=TWOTRACK [2018-04-05 16:04:51,119 INFO L133 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2018-04-05 16:04:51,119 INFO L133 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2018-04-05 16:04:51,119 INFO L133 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2018-04-05 16:04:51,120 INFO L133 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2018-04-05 16:04:51,120 INFO L133 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2018-04-05 16:04:51,121 INFO L131 SettingsManager]: Preferences of IcfgTransformer differ from their defaults: [2018-04-05 16:04:51,121 INFO L133 SettingsManager]: * TransformationType=HEAP_SEPARATOR [2018-04-05 16:04:51,121 INFO L131 SettingsManager]: Preferences of Boogie Printer differ from their defaults: [2018-04-05 16:04:51,121 INFO L133 SettingsManager]: * Dump path:=C:\Users\alex\AppData\Local\Temp\ [2018-04-05 16:04:51,202 INFO L81 nceAwareModelManager]: Repository-Root is: /tmp [2018-04-05 16:04:51,226 INFO L266 ainManager$Toolchain]: [Toolchain 1]: Parser(s) successfully (re)initialized [2018-04-05 16:04:51,234 INFO L222 ainManager$Toolchain]: [Toolchain 1]: Toolchain data selected. [2018-04-05 16:04:51,236 INFO L271 PluginConnector]: Initializing CDTParser... [2018-04-05 16:04:51,236 INFO L276 PluginConnector]: CDTParser initialized [2018-04-05 16:04:51,245 INFO L431 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/svcomp/array-memsafety/openbsd_cstpcpy-alloca_true-valid-memsafety_true-termination.i [2018-04-05 16:04:51,919 INFO L225 CDTParser]: Created temporary CDT project at /storage/ultimate/releaseScripts/default/UAutomizer-linux/data/FLAG0a34f9211 [2018-04-05 16:04:52,594 INFO L287 CDTParser]: IsIndexed: true [2018-04-05 16:04:52,595 INFO L288 CDTParser]: Found 1 translation units. [2018-04-05 16:04:52,598 INFO L168 CDTParser]: Scanning openbsd_cstpcpy-alloca_true-valid-memsafety_true-termination.i [2018-04-05 16:04:52,651 INFO L210 ultiparseSymbolTable]: Include resolver: [2018-04-05 16:04:52,652 INFO L215 ultiparseSymbolTable]: [2018-04-05 16:04:52,652 INFO L218 ultiparseSymbolTable]: Function table: [2018-04-05 16:04:52,652 INFO L221 ultiparseSymbolTable]: Function definition of __U_MULTI_fopenbsd_cstpcpy_alloca_true_valid_memsafety_true_termination_i__cstpcpy ('cstpcpy') in openbsd_cstpcpy-alloca_true-valid-memsafety_true-termination.i [2018-04-05 16:04:52,652 INFO L221 ultiparseSymbolTable]: Function definition of __U_MULTI_fopenbsd_cstpcpy_alloca_true_valid_memsafety_true_termination_i____bswap_64 ('__bswap_64') in openbsd_cstpcpy-alloca_true-valid-memsafety_true-termination.i [2018-04-05 16:04:52,652 INFO L221 ultiparseSymbolTable]: Function definition of null ('main') in openbsd_cstpcpy-alloca_true-valid-memsafety_true-termination.i [2018-04-05 16:04:52,652 INFO L221 ultiparseSymbolTable]: Function definition of __U_MULTI_fopenbsd_cstpcpy_alloca_true_valid_memsafety_true_termination_i____bswap_32 ('__bswap_32') in openbsd_cstpcpy-alloca_true-valid-memsafety_true-termination.i [2018-04-05 16:04:52,652 INFO L227 ultiparseSymbolTable]: Global variable table: [2018-04-05 16:04:52,653 INFO L230 ultiparseSymbolTable]: Global variable declaration of __U_MULTI_fopenbsd_cstpcpy_alloca_true_valid_memsafety_true_termination_i____u_char in openbsd_cstpcpy-alloca_true-valid-memsafety_true-termination.i [2018-04-05 16:04:52,653 INFO L230 ultiparseSymbolTable]: Global variable declaration of __U_MULTI_fopenbsd_cstpcpy_alloca_true_valid_memsafety_true_termination_i__pthread_key_t in openbsd_cstpcpy-alloca_true-valid-memsafety_true-termination.i [2018-04-05 16:04:52,653 INFO L230 ultiparseSymbolTable]: Global variable declaration of __U_MULTI_fopenbsd_cstpcpy_alloca_true_valid_memsafety_true_termination_i____off64_t in openbsd_cstpcpy-alloca_true-valid-memsafety_true-termination.i [2018-04-05 16:04:52,653 INFO L230 ultiparseSymbolTable]: Global variable declaration of __U_MULTI_fopenbsd_cstpcpy_alloca_true_valid_memsafety_true_termination_i____blksize_t in openbsd_cstpcpy-alloca_true-valid-memsafety_true-termination.i [2018-04-05 16:04:52,653 INFO L230 ultiparseSymbolTable]: Global variable declaration of __U_MULTI_fopenbsd_cstpcpy_alloca_true_valid_memsafety_true_termination_i__blksize_t in openbsd_cstpcpy-alloca_true-valid-memsafety_true-termination.i [2018-04-05 16:04:52,653 INFO L230 ultiparseSymbolTable]: Global variable declaration of __U_MULTI_fopenbsd_cstpcpy_alloca_true_valid_memsafety_true_termination_i____qaddr_t in openbsd_cstpcpy-alloca_true-valid-memsafety_true-termination.i [2018-04-05 16:04:52,653 INFO L230 ultiparseSymbolTable]: Global variable declaration of __U_MULTI_fopenbsd_cstpcpy_alloca_true_valid_memsafety_true_termination_i__u_quad_t in openbsd_cstpcpy-alloca_true-valid-memsafety_true-termination.i [2018-04-05 16:04:52,653 INFO L230 ultiparseSymbolTable]: Global variable declaration of __U_MULTI_fopenbsd_cstpcpy_alloca_true_valid_memsafety_true_termination_i__int16_t in openbsd_cstpcpy-alloca_true-valid-memsafety_true-termination.i [2018-04-05 16:04:52,654 INFO L230 ultiparseSymbolTable]: Global variable declaration of __U_MULTI_fopenbsd_cstpcpy_alloca_true_valid_memsafety_true_termination_i____dev_t in openbsd_cstpcpy-alloca_true-valid-memsafety_true-termination.i [2018-04-05 16:04:52,654 INFO L230 ultiparseSymbolTable]: Global variable declaration of __U_MULTI_fopenbsd_cstpcpy_alloca_true_valid_memsafety_true_termination_i____fsblkcnt_t in openbsd_cstpcpy-alloca_true-valid-memsafety_true-termination.i [2018-04-05 16:04:52,654 INFO L230 ultiparseSymbolTable]: Global variable declaration of __U_MULTI_fopenbsd_cstpcpy_alloca_true_valid_memsafety_true_termination_i__uid_t in openbsd_cstpcpy-alloca_true-valid-memsafety_true-termination.i [2018-04-05 16:04:52,654 INFO L230 ultiparseSymbolTable]: Global variable declaration of __U_MULTI_fopenbsd_cstpcpy_alloca_true_valid_memsafety_true_termination_i__lldiv_t in openbsd_cstpcpy-alloca_true-valid-memsafety_true-termination.i [2018-04-05 16:04:52,654 INFO L230 ultiparseSymbolTable]: Global variable declaration of __U_MULTI_fopenbsd_cstpcpy_alloca_true_valid_memsafety_true_termination_i____caddr_t in openbsd_cstpcpy-alloca_true-valid-memsafety_true-termination.i [2018-04-05 16:04:52,654 INFO L230 ultiparseSymbolTable]: Global variable declaration of __U_MULTI_fopenbsd_cstpcpy_alloca_true_valid_memsafety_true_termination_i__fd_set in openbsd_cstpcpy-alloca_true-valid-memsafety_true-termination.i [2018-04-05 16:04:52,654 INFO L230 ultiparseSymbolTable]: Global variable declaration of __U_MULTI_fopenbsd_cstpcpy_alloca_true_valid_memsafety_true_termination_i____u_long in openbsd_cstpcpy-alloca_true-valid-memsafety_true-termination.i [2018-04-05 16:04:52,654 INFO L230 ultiparseSymbolTable]: Global variable declaration of __U_MULTI_fopenbsd_cstpcpy_alloca_true_valid_memsafety_true_termination_i__div_t in openbsd_cstpcpy-alloca_true-valid-memsafety_true-termination.i [2018-04-05 16:04:52,654 INFO L230 ultiparseSymbolTable]: Global variable declaration of __U_MULTI_fopenbsd_cstpcpy_alloca_true_valid_memsafety_true_termination_i__u_char in openbsd_cstpcpy-alloca_true-valid-memsafety_true-termination.i [2018-04-05 16:04:52,670 INFO L230 ultiparseSymbolTable]: Global variable declaration of __U_MULTI_fopenbsd_cstpcpy_alloca_true_valid_memsafety_true_termination_i__time_t in openbsd_cstpcpy-alloca_true-valid-memsafety_true-termination.i [2018-04-05 16:04:52,670 INFO L230 ultiparseSymbolTable]: Global variable declaration of __U_MULTI_fopenbsd_cstpcpy_alloca_true_valid_memsafety_true_termination_i__ulong in openbsd_cstpcpy-alloca_true-valid-memsafety_true-termination.i [2018-04-05 16:04:52,670 INFO L230 ultiparseSymbolTable]: Global variable declaration of __U_MULTI_fopenbsd_cstpcpy_alloca_true_valid_memsafety_true_termination_i__caddr_t in openbsd_cstpcpy-alloca_true-valid-memsafety_true-termination.i [2018-04-05 16:04:52,670 INFO L230 ultiparseSymbolTable]: Global variable declaration of __U_MULTI_fopenbsd_cstpcpy_alloca_true_valid_memsafety_true_termination_i____pthread_list_t in openbsd_cstpcpy-alloca_true-valid-memsafety_true-termination.i [2018-04-05 16:04:52,670 INFO L230 ultiparseSymbolTable]: Global variable declaration of __U_MULTI_fopenbsd_cstpcpy_alloca_true_valid_memsafety_true_termination_i__pthread_barrierattr_t in openbsd_cstpcpy-alloca_true-valid-memsafety_true-termination.i [2018-04-05 16:04:52,670 INFO L230 ultiparseSymbolTable]: Global variable declaration of __U_MULTI_fopenbsd_cstpcpy_alloca_true_valid_memsafety_true_termination_i__blkcnt_t in openbsd_cstpcpy-alloca_true-valid-memsafety_true-termination.i [2018-04-05 16:04:52,671 INFO L230 ultiparseSymbolTable]: Global variable declaration of __U_MULTI_fopenbsd_cstpcpy_alloca_true_valid_memsafety_true_termination_i__pthread_rwlock_t in openbsd_cstpcpy-alloca_true-valid-memsafety_true-termination.i [2018-04-05 16:04:52,671 INFO L230 ultiparseSymbolTable]: Global variable declaration of __U_MULTI_fopenbsd_cstpcpy_alloca_true_valid_memsafety_true_termination_i__sigset_t in openbsd_cstpcpy-alloca_true-valid-memsafety_true-termination.i [2018-04-05 16:04:52,673 INFO L230 ultiparseSymbolTable]: Global variable declaration of __U_MULTI_fopenbsd_cstpcpy_alloca_true_valid_memsafety_true_termination_i____uint32_t in openbsd_cstpcpy-alloca_true-valid-memsafety_true-termination.i [2018-04-05 16:04:52,673 INFO L230 ultiparseSymbolTable]: Global variable declaration of __U_MULTI_fopenbsd_cstpcpy_alloca_true_valid_memsafety_true_termination_i____int16_t in openbsd_cstpcpy-alloca_true-valid-memsafety_true-termination.i [2018-04-05 16:04:52,673 INFO L230 ultiparseSymbolTable]: Global variable declaration of __U_MULTI_fopenbsd_cstpcpy_alloca_true_valid_memsafety_true_termination_i____intptr_t in openbsd_cstpcpy-alloca_true-valid-memsafety_true-termination.i [2018-04-05 16:04:52,673 INFO L230 ultiparseSymbolTable]: Global variable declaration of __U_MULTI_fopenbsd_cstpcpy_alloca_true_valid_memsafety_true_termination_i____u_quad_t in openbsd_cstpcpy-alloca_true-valid-memsafety_true-termination.i [2018-04-05 16:04:52,673 INFO L230 ultiparseSymbolTable]: Global variable declaration of __U_MULTI_fopenbsd_cstpcpy_alloca_true_valid_memsafety_true_termination_i____gid_t in openbsd_cstpcpy-alloca_true-valid-memsafety_true-termination.i [2018-04-05 16:04:52,673 INFO L230 ultiparseSymbolTable]: Global variable declaration of __U_MULTI_fopenbsd_cstpcpy_alloca_true_valid_memsafety_true_termination_i__size_t in openbsd_cstpcpy-alloca_true-valid-memsafety_true-termination.i [2018-04-05 16:04:52,673 INFO L230 ultiparseSymbolTable]: Global variable declaration of __U_MULTI_fopenbsd_cstpcpy_alloca_true_valid_memsafety_true_termination_i____ssize_t in openbsd_cstpcpy-alloca_true-valid-memsafety_true-termination.i [2018-04-05 16:04:52,673 INFO L230 ultiparseSymbolTable]: Global variable declaration of __U_MULTI_fopenbsd_cstpcpy_alloca_true_valid_memsafety_true_termination_i__pthread_mutexattr_t in openbsd_cstpcpy-alloca_true-valid-memsafety_true-termination.i [2018-04-05 16:04:52,674 INFO L230 ultiparseSymbolTable]: Global variable declaration of __U_MULTI_fopenbsd_cstpcpy_alloca_true_valid_memsafety_true_termination_i____quad_t in openbsd_cstpcpy-alloca_true-valid-memsafety_true-termination.i [2018-04-05 16:04:52,674 INFO L230 ultiparseSymbolTable]: Global variable declaration of __U_MULTI_fopenbsd_cstpcpy_alloca_true_valid_memsafety_true_termination_i____pid_t in openbsd_cstpcpy-alloca_true-valid-memsafety_true-termination.i [2018-04-05 16:04:52,674 INFO L230 ultiparseSymbolTable]: Global variable declaration of __U_MULTI_fopenbsd_cstpcpy_alloca_true_valid_memsafety_true_termination_i____ino64_t in openbsd_cstpcpy-alloca_true-valid-memsafety_true-termination.i [2018-04-05 16:04:52,674 INFO L230 ultiparseSymbolTable]: Global variable declaration of __U_MULTI_fopenbsd_cstpcpy_alloca_true_valid_memsafety_true_termination_i__key_t in openbsd_cstpcpy-alloca_true-valid-memsafety_true-termination.i [2018-04-05 16:04:52,674 INFO L230 ultiparseSymbolTable]: Global variable declaration of __U_MULTI_fopenbsd_cstpcpy_alloca_true_valid_memsafety_true_termination_i____socklen_t in openbsd_cstpcpy-alloca_true-valid-memsafety_true-termination.i [2018-04-05 16:04:52,674 INFO L230 ultiparseSymbolTable]: Global variable declaration of __U_MULTI_fopenbsd_cstpcpy_alloca_true_valid_memsafety_true_termination_i__int32_t in openbsd_cstpcpy-alloca_true-valid-memsafety_true-termination.i [2018-04-05 16:04:52,674 INFO L230 ultiparseSymbolTable]: Global variable declaration of __U_MULTI_fopenbsd_cstpcpy_alloca_true_valid_memsafety_true_termination_i____rlim_t in openbsd_cstpcpy-alloca_true-valid-memsafety_true-termination.i [2018-04-05 16:04:52,680 INFO L230 ultiparseSymbolTable]: Global variable declaration of __U_MULTI_fopenbsd_cstpcpy_alloca_true_valid_memsafety_true_termination_i__pthread_rwlockattr_t in openbsd_cstpcpy-alloca_true-valid-memsafety_true-termination.i [2018-04-05 16:04:52,680 INFO L230 ultiparseSymbolTable]: Global variable declaration of __U_MULTI_fopenbsd_cstpcpy_alloca_true_valid_memsafety_true_termination_i____blkcnt64_t in openbsd_cstpcpy-alloca_true-valid-memsafety_true-termination.i [2018-04-05 16:04:52,680 INFO L230 ultiparseSymbolTable]: Global variable declaration of __U_MULTI_fopenbsd_cstpcpy_alloca_true_valid_memsafety_true_termination_i____off_t in openbsd_cstpcpy-alloca_true-valid-memsafety_true-termination.i [2018-04-05 16:04:52,680 INFO L230 ultiparseSymbolTable]: Global variable declaration of __U_MULTI_fopenbsd_cstpcpy_alloca_true_valid_memsafety_true_termination_i__pthread_barrier_t in openbsd_cstpcpy-alloca_true-valid-memsafety_true-termination.i [2018-04-05 16:04:52,680 INFO L230 ultiparseSymbolTable]: Global variable declaration of __U_MULTI_fopenbsd_cstpcpy_alloca_true_valid_memsafety_true_termination_i__fd_mask in openbsd_cstpcpy-alloca_true-valid-memsafety_true-termination.i [2018-04-05 16:04:52,680 INFO L230 ultiparseSymbolTable]: Global variable declaration of __U_MULTI_fopenbsd_cstpcpy_alloca_true_valid_memsafety_true_termination_i__fsfilcnt_t in openbsd_cstpcpy-alloca_true-valid-memsafety_true-termination.i [2018-04-05 16:04:52,680 INFO L230 ultiparseSymbolTable]: Global variable declaration of __U_MULTI_fopenbsd_cstpcpy_alloca_true_valid_memsafety_true_termination_i____int32_t in openbsd_cstpcpy-alloca_true-valid-memsafety_true-termination.i [2018-04-05 16:04:52,681 INFO L230 ultiparseSymbolTable]: Global variable declaration of __U_MULTI_fopenbsd_cstpcpy_alloca_true_valid_memsafety_true_termination_i____nlink_t in openbsd_cstpcpy-alloca_true-valid-memsafety_true-termination.i [2018-04-05 16:04:52,681 INFO L230 ultiparseSymbolTable]: Global variable declaration of __U_MULTI_fopenbsd_cstpcpy_alloca_true_valid_memsafety_true_termination_i____suseconds_t in openbsd_cstpcpy-alloca_true-valid-memsafety_true-termination.i [2018-04-05 16:04:52,681 INFO L230 ultiparseSymbolTable]: Global variable declaration of __U_MULTI_fopenbsd_cstpcpy_alloca_true_valid_memsafety_true_termination_i__timer_t in openbsd_cstpcpy-alloca_true-valid-memsafety_true-termination.i [2018-04-05 16:04:52,681 INFO L230 ultiparseSymbolTable]: Global variable declaration of __U_MULTI_fopenbsd_cstpcpy_alloca_true_valid_memsafety_true_termination_i__u_int32_t in openbsd_cstpcpy-alloca_true-valid-memsafety_true-termination.i [2018-04-05 16:04:52,681 INFO L230 ultiparseSymbolTable]: Global variable declaration of __U_MULTI_fopenbsd_cstpcpy_alloca_true_valid_memsafety_true_termination_i__clockid_t in openbsd_cstpcpy-alloca_true-valid-memsafety_true-termination.i [2018-04-05 16:04:52,681 INFO L230 ultiparseSymbolTable]: Global variable declaration of __U_MULTI_fopenbsd_cstpcpy_alloca_true_valid_memsafety_true_termination_i__u_int8_t in openbsd_cstpcpy-alloca_true-valid-memsafety_true-termination.i [2018-04-05 16:04:52,681 INFO L230 ultiparseSymbolTable]: Global variable declaration of __U_MULTI_fopenbsd_cstpcpy_alloca_true_valid_memsafety_true_termination_i__u_int in openbsd_cstpcpy-alloca_true-valid-memsafety_true-termination.i [2018-04-05 16:04:52,681 INFO L230 ultiparseSymbolTable]: Global variable declaration of __U_MULTI_fopenbsd_cstpcpy_alloca_true_valid_memsafety_true_termination_i__pthread_t in openbsd_cstpcpy-alloca_true-valid-memsafety_true-termination.i [2018-04-05 16:04:52,681 INFO L230 ultiparseSymbolTable]: Global variable declaration of __U_MULTI_fopenbsd_cstpcpy_alloca_true_valid_memsafety_true_termination_i____id_t in openbsd_cstpcpy-alloca_true-valid-memsafety_true-termination.i [2018-04-05 16:04:52,681 INFO L230 ultiparseSymbolTable]: Global variable declaration of __U_MULTI_fopenbsd_cstpcpy_alloca_true_valid_memsafety_true_termination_i____syscall_ulong_t in openbsd_cstpcpy-alloca_true-valid-memsafety_true-termination.i [2018-04-05 16:04:52,682 INFO L230 ultiparseSymbolTable]: Global variable declaration of __U_MULTI_fopenbsd_cstpcpy_alloca_true_valid_memsafety_true_termination_i____timer_t in openbsd_cstpcpy-alloca_true-valid-memsafety_true-termination.i [2018-04-05 16:04:52,693 INFO L230 ultiparseSymbolTable]: Global variable declaration of __U_MULTI_fopenbsd_cstpcpy_alloca_true_valid_memsafety_true_termination_i__fsblkcnt_t in openbsd_cstpcpy-alloca_true-valid-memsafety_true-termination.i [2018-04-05 16:04:52,693 INFO L230 ultiparseSymbolTable]: Global variable declaration of __U_MULTI_fopenbsd_cstpcpy_alloca_true_valid_memsafety_true_termination_i____sig_atomic_t in openbsd_cstpcpy-alloca_true-valid-memsafety_true-termination.i [2018-04-05 16:04:52,693 INFO L230 ultiparseSymbolTable]: Global variable declaration of __U_MULTI_fopenbsd_cstpcpy_alloca_true_valid_memsafety_true_termination_i____int64_t in openbsd_cstpcpy-alloca_true-valid-memsafety_true-termination.i [2018-04-05 16:04:52,693 INFO L230 ultiparseSymbolTable]: Global variable declaration of __U_MULTI_fopenbsd_cstpcpy_alloca_true_valid_memsafety_true_termination_i__pthread_attr_t in openbsd_cstpcpy-alloca_true-valid-memsafety_true-termination.i [2018-04-05 16:04:52,693 INFO L230 ultiparseSymbolTable]: Global variable declaration of __U_MULTI_fopenbsd_cstpcpy_alloca_true_valid_memsafety_true_termination_i____uid_t in openbsd_cstpcpy-alloca_true-valid-memsafety_true-termination.i [2018-04-05 16:04:52,693 INFO L230 ultiparseSymbolTable]: Global variable declaration of __U_MULTI_fopenbsd_cstpcpy_alloca_true_valid_memsafety_true_termination_i____fd_mask in openbsd_cstpcpy-alloca_true-valid-memsafety_true-termination.i [2018-04-05 16:04:52,693 INFO L230 ultiparseSymbolTable]: Global variable declaration of __U_MULTI_fopenbsd_cstpcpy_alloca_true_valid_memsafety_true_termination_i__nlink_t in openbsd_cstpcpy-alloca_true-valid-memsafety_true-termination.i [2018-04-05 16:04:52,694 INFO L230 ultiparseSymbolTable]: Global variable declaration of __U_MULTI_fopenbsd_cstpcpy_alloca_true_valid_memsafety_true_termination_i____fsblkcnt64_t in openbsd_cstpcpy-alloca_true-valid-memsafety_true-termination.i [2018-04-05 16:04:52,694 INFO L230 ultiparseSymbolTable]: Global variable declaration of __U_MULTI_fopenbsd_cstpcpy_alloca_true_valid_memsafety_true_termination_i__uint in openbsd_cstpcpy-alloca_true-valid-memsafety_true-termination.i [2018-04-05 16:04:52,694 INFO L230 ultiparseSymbolTable]: Global variable declaration of __U_MULTI_fopenbsd_cstpcpy_alloca_true_valid_memsafety_true_termination_i__wchar_t in openbsd_cstpcpy-alloca_true-valid-memsafety_true-termination.i [2018-04-05 16:04:52,694 INFO L230 ultiparseSymbolTable]: Global variable declaration of __U_MULTI_fopenbsd_cstpcpy_alloca_true_valid_memsafety_true_termination_i____useconds_t in openbsd_cstpcpy-alloca_true-valid-memsafety_true-termination.i [2018-04-05 16:04:52,694 INFO L230 ultiparseSymbolTable]: Global variable declaration of __U_MULTI_fopenbsd_cstpcpy_alloca_true_valid_memsafety_true_termination_i__loff_t in openbsd_cstpcpy-alloca_true-valid-memsafety_true-termination.i [2018-04-05 16:04:52,694 INFO L230 ultiparseSymbolTable]: Global variable declaration of __U_MULTI_fopenbsd_cstpcpy_alloca_true_valid_memsafety_true_termination_i__ssize_t in openbsd_cstpcpy-alloca_true-valid-memsafety_true-termination.i [2018-04-05 16:04:52,695 INFO L230 ultiparseSymbolTable]: Global variable declaration of __U_MULTI_fopenbsd_cstpcpy_alloca_true_valid_memsafety_true_termination_i____uint64_t in openbsd_cstpcpy-alloca_true-valid-memsafety_true-termination.i [2018-04-05 16:04:52,695 INFO L230 ultiparseSymbolTable]: Global variable declaration of __U_MULTI_fopenbsd_cstpcpy_alloca_true_valid_memsafety_true_termination_i____fsword_t in openbsd_cstpcpy-alloca_true-valid-memsafety_true-termination.i [2018-04-05 16:04:52,695 INFO L230 ultiparseSymbolTable]: Global variable declaration of __U_MULTI_fopenbsd_cstpcpy_alloca_true_valid_memsafety_true_termination_i__pthread_spinlock_t in openbsd_cstpcpy-alloca_true-valid-memsafety_true-termination.i [2018-04-05 16:04:52,695 INFO L230 ultiparseSymbolTable]: Global variable declaration of __U_MULTI_fopenbsd_cstpcpy_alloca_true_valid_memsafety_true_termination_i__u_int16_t in openbsd_cstpcpy-alloca_true-valid-memsafety_true-termination.i [2018-04-05 16:04:52,695 INFO L230 ultiparseSymbolTable]: Global variable declaration of __U_MULTI_fopenbsd_cstpcpy_alloca_true_valid_memsafety_true_termination_i__register_t in openbsd_cstpcpy-alloca_true-valid-memsafety_true-termination.i [2018-04-05 16:04:52,695 INFO L230 ultiparseSymbolTable]: Global variable declaration of __U_MULTI_fopenbsd_cstpcpy_alloca_true_valid_memsafety_true_termination_i__quad_t in openbsd_cstpcpy-alloca_true-valid-memsafety_true-termination.i [2018-04-05 16:04:52,695 INFO L230 ultiparseSymbolTable]: Global variable declaration of __U_MULTI_fopenbsd_cstpcpy_alloca_true_valid_memsafety_true_termination_i__off_t in openbsd_cstpcpy-alloca_true-valid-memsafety_true-termination.i [2018-04-05 16:04:52,695 INFO L230 ultiparseSymbolTable]: Global variable declaration of __U_MULTI_fopenbsd_cstpcpy_alloca_true_valid_memsafety_true_termination_i____u_int in openbsd_cstpcpy-alloca_true-valid-memsafety_true-termination.i [2018-04-05 16:04:52,695 INFO L230 ultiparseSymbolTable]: Global variable declaration of __U_MULTI_fopenbsd_cstpcpy_alloca_true_valid_memsafety_true_termination_i__u_short in openbsd_cstpcpy-alloca_true-valid-memsafety_true-termination.i [2018-04-05 16:04:52,695 INFO L230 ultiparseSymbolTable]: Global variable declaration of __U_MULTI_fopenbsd_cstpcpy_alloca_true_valid_memsafety_true_termination_i____clockid_t in openbsd_cstpcpy-alloca_true-valid-memsafety_true-termination.i [2018-04-05 16:04:52,696 INFO L230 ultiparseSymbolTable]: Global variable declaration of __U_MULTI_fopenbsd_cstpcpy_alloca_true_valid_memsafety_true_termination_i____sigset_t in openbsd_cstpcpy-alloca_true-valid-memsafety_true-termination.i [2018-04-05 16:04:52,696 INFO L230 ultiparseSymbolTable]: Global variable declaration of __U_MULTI_fopenbsd_cstpcpy_alloca_true_valid_memsafety_true_termination_i__pthread_cond_t in openbsd_cstpcpy-alloca_true-valid-memsafety_true-termination.i [2018-04-05 16:04:52,696 INFO L230 ultiparseSymbolTable]: Global variable declaration of __U_MULTI_fopenbsd_cstpcpy_alloca_true_valid_memsafety_true_termination_i____blkcnt_t in openbsd_cstpcpy-alloca_true-valid-memsafety_true-termination.i [2018-04-05 16:04:52,696 INFO L230 ultiparseSymbolTable]: Global variable declaration of __U_MULTI_fopenbsd_cstpcpy_alloca_true_valid_memsafety_true_termination_i__id_t in openbsd_cstpcpy-alloca_true-valid-memsafety_true-termination.i [2018-04-05 16:04:52,696 INFO L230 ultiparseSymbolTable]: Global variable declaration of __U_MULTI_fopenbsd_cstpcpy_alloca_true_valid_memsafety_true_termination_i__pthread_once_t in openbsd_cstpcpy-alloca_true-valid-memsafety_true-termination.i [2018-04-05 16:04:52,704 INFO L230 ultiparseSymbolTable]: Global variable declaration of __U_MULTI_fopenbsd_cstpcpy_alloca_true_valid_memsafety_true_termination_i__dev_t in openbsd_cstpcpy-alloca_true-valid-memsafety_true-termination.i [2018-04-05 16:04:52,704 INFO L230 ultiparseSymbolTable]: Global variable declaration of __U_MULTI_fopenbsd_cstpcpy_alloca_true_valid_memsafety_true_termination_i__u_long in openbsd_cstpcpy-alloca_true-valid-memsafety_true-termination.i [2018-04-05 16:04:52,704 INFO L230 ultiparseSymbolTable]: Global variable declaration of __U_MULTI_fopenbsd_cstpcpy_alloca_true_valid_memsafety_true_termination_i____mode_t in openbsd_cstpcpy-alloca_true-valid-memsafety_true-termination.i [2018-04-05 16:04:52,704 INFO L230 ultiparseSymbolTable]: Global variable declaration of __U_MULTI_fopenbsd_cstpcpy_alloca_true_valid_memsafety_true_termination_i____fsid_t in openbsd_cstpcpy-alloca_true-valid-memsafety_true-termination.i [2018-04-05 16:04:52,704 INFO L230 ultiparseSymbolTable]: Global variable declaration of __U_MULTI_fopenbsd_cstpcpy_alloca_true_valid_memsafety_true_termination_i____syscall_slong_t in openbsd_cstpcpy-alloca_true-valid-memsafety_true-termination.i [2018-04-05 16:04:52,704 INFO L230 ultiparseSymbolTable]: Global variable declaration of __U_MULTI_fopenbsd_cstpcpy_alloca_true_valid_memsafety_true_termination_i____ino_t in openbsd_cstpcpy-alloca_true-valid-memsafety_true-termination.i [2018-04-05 16:04:52,704 INFO L230 ultiparseSymbolTable]: Global variable declaration of __U_MULTI_fopenbsd_cstpcpy_alloca_true_valid_memsafety_true_termination_i____time_t in openbsd_cstpcpy-alloca_true-valid-memsafety_true-termination.i [2018-04-05 16:04:52,705 INFO L230 ultiparseSymbolTable]: Global variable declaration of __U_MULTI_fopenbsd_cstpcpy_alloca_true_valid_memsafety_true_termination_i__int8_t in openbsd_cstpcpy-alloca_true-valid-memsafety_true-termination.i [2018-04-05 16:04:52,705 INFO L230 ultiparseSymbolTable]: Global variable declaration of __U_MULTI_fopenbsd_cstpcpy_alloca_true_valid_memsafety_true_termination_i____u_short in openbsd_cstpcpy-alloca_true-valid-memsafety_true-termination.i [2018-04-05 16:04:52,705 INFO L230 ultiparseSymbolTable]: Global variable declaration of __U_MULTI_fopenbsd_cstpcpy_alloca_true_valid_memsafety_true_termination_i__u_int64_t in openbsd_cstpcpy-alloca_true-valid-memsafety_true-termination.i [2018-04-05 16:04:52,705 INFO L230 ultiparseSymbolTable]: Global variable declaration of __U_MULTI_fopenbsd_cstpcpy_alloca_true_valid_memsafety_true_termination_i__pthread_mutex_t in openbsd_cstpcpy-alloca_true-valid-memsafety_true-termination.i [2018-04-05 16:04:52,705 INFO L230 ultiparseSymbolTable]: Global variable declaration of __U_MULTI_fopenbsd_cstpcpy_alloca_true_valid_memsafety_true_termination_i____fsfilcnt64_t in openbsd_cstpcpy-alloca_true-valid-memsafety_true-termination.i [2018-04-05 16:04:52,705 INFO L230 ultiparseSymbolTable]: Global variable declaration of __U_MULTI_fopenbsd_cstpcpy_alloca_true_valid_memsafety_true_termination_i__clock_t in openbsd_cstpcpy-alloca_true-valid-memsafety_true-termination.i [2018-04-05 16:04:52,705 INFO L230 ultiparseSymbolTable]: Global variable declaration of __U_MULTI_fopenbsd_cstpcpy_alloca_true_valid_memsafety_true_termination_i__suseconds_t in openbsd_cstpcpy-alloca_true-valid-memsafety_true-termination.i [2018-04-05 16:04:52,705 INFO L230 ultiparseSymbolTable]: Global variable declaration of __U_MULTI_fopenbsd_cstpcpy_alloca_true_valid_memsafety_true_termination_i__ushort in openbsd_cstpcpy-alloca_true-valid-memsafety_true-termination.i [2018-04-05 16:04:52,705 INFO L230 ultiparseSymbolTable]: Global variable declaration of __U_MULTI_fopenbsd_cstpcpy_alloca_true_valid_memsafety_true_termination_i__gid_t in openbsd_cstpcpy-alloca_true-valid-memsafety_true-termination.i [2018-04-05 16:04:52,705 INFO L230 ultiparseSymbolTable]: Global variable declaration of __U_MULTI_fopenbsd_cstpcpy_alloca_true_valid_memsafety_true_termination_i__ldiv_t in openbsd_cstpcpy-alloca_true-valid-memsafety_true-termination.i [2018-04-05 16:04:52,706 INFO L230 ultiparseSymbolTable]: Global variable declaration of __U_MULTI_fopenbsd_cstpcpy_alloca_true_valid_memsafety_true_termination_i__ino_t in openbsd_cstpcpy-alloca_true-valid-memsafety_true-termination.i [2018-04-05 16:04:52,706 INFO L230 ultiparseSymbolTable]: Global variable declaration of __U_MULTI_fopenbsd_cstpcpy_alloca_true_valid_memsafety_true_termination_i__pid_t in openbsd_cstpcpy-alloca_true-valid-memsafety_true-termination.i [2018-04-05 16:04:52,706 INFO L230 ultiparseSymbolTable]: Global variable declaration of __U_MULTI_fopenbsd_cstpcpy_alloca_true_valid_memsafety_true_termination_i____clock_t in openbsd_cstpcpy-alloca_true-valid-memsafety_true-termination.i [2018-04-05 16:04:52,706 INFO L230 ultiparseSymbolTable]: Global variable declaration of __U_MULTI_fopenbsd_cstpcpy_alloca_true_valid_memsafety_true_termination_i____uint8_t in openbsd_cstpcpy-alloca_true-valid-memsafety_true-termination.i [2018-04-05 16:04:52,706 INFO L230 ultiparseSymbolTable]: Global variable declaration of __U_MULTI_fopenbsd_cstpcpy_alloca_true_valid_memsafety_true_termination_i____daddr_t in openbsd_cstpcpy-alloca_true-valid-memsafety_true-termination.i [2018-04-05 16:04:52,706 INFO L230 ultiparseSymbolTable]: Global variable declaration of __U_MULTI_fopenbsd_cstpcpy_alloca_true_valid_memsafety_true_termination_i____key_t in openbsd_cstpcpy-alloca_true-valid-memsafety_true-termination.i [2018-04-05 16:04:52,706 INFO L230 ultiparseSymbolTable]: Global variable declaration of __U_MULTI_fopenbsd_cstpcpy_alloca_true_valid_memsafety_true_termination_i__mode_t in openbsd_cstpcpy-alloca_true-valid-memsafety_true-termination.i [2018-04-05 16:04:52,706 INFO L230 ultiparseSymbolTable]: Global variable declaration of __U_MULTI_fopenbsd_cstpcpy_alloca_true_valid_memsafety_true_termination_i__fsid_t in openbsd_cstpcpy-alloca_true-valid-memsafety_true-termination.i [2018-04-05 16:04:52,706 INFO L230 ultiparseSymbolTable]: Global variable declaration of __U_MULTI_fopenbsd_cstpcpy_alloca_true_valid_memsafety_true_termination_i____int8_t in openbsd_cstpcpy-alloca_true-valid-memsafety_true-termination.i [2018-04-05 16:04:52,706 INFO L230 ultiparseSymbolTable]: Global variable declaration of __U_MULTI_fopenbsd_cstpcpy_alloca_true_valid_memsafety_true_termination_i__int64_t in openbsd_cstpcpy-alloca_true-valid-memsafety_true-termination.i [2018-04-05 16:04:52,707 INFO L230 ultiparseSymbolTable]: Global variable declaration of __U_MULTI_fopenbsd_cstpcpy_alloca_true_valid_memsafety_true_termination_i____loff_t in openbsd_cstpcpy-alloca_true-valid-memsafety_true-termination.i [2018-04-05 16:04:52,707 INFO L230 ultiparseSymbolTable]: Global variable declaration of __U_MULTI_fopenbsd_cstpcpy_alloca_true_valid_memsafety_true_termination_i__daddr_t in openbsd_cstpcpy-alloca_true-valid-memsafety_true-termination.i [2018-04-05 16:04:52,707 INFO L230 ultiparseSymbolTable]: Global variable declaration of __U_MULTI_fopenbsd_cstpcpy_alloca_true_valid_memsafety_true_termination_i____rlim64_t in openbsd_cstpcpy-alloca_true-valid-memsafety_true-termination.i [2018-04-05 16:04:52,707 INFO L230 ultiparseSymbolTable]: Global variable declaration of __U_MULTI_fopenbsd_cstpcpy_alloca_true_valid_memsafety_true_termination_i____fsfilcnt_t in openbsd_cstpcpy-alloca_true-valid-memsafety_true-termination.i [2018-04-05 16:04:52,707 INFO L230 ultiparseSymbolTable]: Global variable declaration of __U_MULTI_fopenbsd_cstpcpy_alloca_true_valid_memsafety_true_termination_i____uint16_t in openbsd_cstpcpy-alloca_true-valid-memsafety_true-termination.i [2018-04-05 16:04:52,707 INFO L230 ultiparseSymbolTable]: Global variable declaration of __U_MULTI_fopenbsd_cstpcpy_alloca_true_valid_memsafety_true_termination_i____WAIT_STATUS in openbsd_cstpcpy-alloca_true-valid-memsafety_true-termination.i [2018-04-05 16:04:52,707 INFO L230 ultiparseSymbolTable]: Global variable declaration of __U_MULTI_fopenbsd_cstpcpy_alloca_true_valid_memsafety_true_termination_i__pthread_condattr_t in openbsd_cstpcpy-alloca_true-valid-memsafety_true-termination.i [2018-04-05 16:04:53,157 INFO L330 CDTParser]: Deleted temporary CDT project at /storage/ultimate/releaseScripts/default/UAutomizer-linux/data/FLAG0a34f9211 [2018-04-05 16:04:53,176 INFO L304 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2018-04-05 16:04:53,185 INFO L131 ToolchainWalker]: Walking toolchain with 4 elements. [2018-04-05 16:04:53,195 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2018-04-05 16:04:53,195 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2018-04-05 16:04:53,204 INFO L276 PluginConnector]: CACSL2BoogieTranslator initialized [2018-04-05 16:04:53,205 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 05.04 04:04:53" (1/1) ... [2018-04-05 16:04:53,210 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@6a016828 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 05.04 04:04:53, skipping insertion in model container [2018-04-05 16:04:53,210 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 05.04 04:04:53" (1/1) ... [2018-04-05 16:04:53,243 INFO L167 Dispatcher]: Using SV-COMP mode [2018-04-05 16:04:53,352 INFO L167 Dispatcher]: Using SV-COMP mode [2018-04-05 16:04:53,776 INFO L175 PostProcessor]: Settings: Checked method=main [2018-04-05 16:04:53,873 INFO L175 PostProcessor]: Settings: Checked method=main [2018-04-05 16:04:53,884 INFO L100 SccComputation]: Graph consists of 0 InCaSumBalls and 112 non ball SCCs. Number of states in SCCs 112. [2018-04-05 16:04:53,992 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 05.04 04:04:53 WrapperNode [2018-04-05 16:04:53,993 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2018-04-05 16:04:53,994 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2018-04-05 16:04:53,994 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2018-04-05 16:04:53,994 INFO L276 PluginConnector]: Boogie Preprocessor initialized [2018-04-05 16:04:54,017 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 05.04 04:04:53" (1/1) ... [2018-04-05 16:04:54,017 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 05.04 04:04:53" (1/1) ... [2018-04-05 16:04:54,055 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 05.04 04:04:53" (1/1) ... [2018-04-05 16:04:54,055 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 05.04 04:04:53" (1/1) ... [2018-04-05 16:04:54,095 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 05.04 04:04:53" (1/1) ... [2018-04-05 16:04:54,109 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 05.04 04:04:53" (1/1) ... [2018-04-05 16:04:54,121 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 05.04 04:04:53" (1/1) ... [2018-04-05 16:04:54,125 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2018-04-05 16:04:54,136 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2018-04-05 16:04:54,136 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2018-04-05 16:04:54,136 INFO L276 PluginConnector]: RCFGBuilder initialized [2018-04-05 16:04:54,141 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 05.04 04:04:53" (1/1) ... No working directory specified, using /storage/ultimate/releaseScripts/default/UAutomizer-linux/z3 Starting monitored process 1 with z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 1 with z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2018-04-05 16:04:54,511 INFO L136 BoogieDeclarations]: Found implementation of procedure ULTIMATE.init [2018-04-05 16:04:54,525 INFO L136 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2018-04-05 16:04:54,525 INFO L136 BoogieDeclarations]: Found implementation of procedure __U_MULTI_fopenbsd_cstpcpy_alloca_true_valid_memsafety_true_termination_i____bswap_32 [2018-04-05 16:04:54,525 INFO L136 BoogieDeclarations]: Found implementation of procedure __U_MULTI_fopenbsd_cstpcpy_alloca_true_valid_memsafety_true_termination_i____bswap_64 [2018-04-05 16:04:54,525 INFO L136 BoogieDeclarations]: Found implementation of procedure __U_MULTI_fopenbsd_cstpcpy_alloca_true_valid_memsafety_true_termination_i__cstpcpy [2018-04-05 16:04:54,525 INFO L136 BoogieDeclarations]: Found implementation of procedure main [2018-04-05 16:04:54,526 INFO L128 BoogieDeclarations]: Found specification of procedure __U_MULTI_fopenbsd_cstpcpy_alloca_true_valid_memsafety_true_termination_i____bswap_32 [2018-04-05 16:04:54,526 INFO L128 BoogieDeclarations]: Found specification of procedure __U_MULTI_fopenbsd_cstpcpy_alloca_true_valid_memsafety_true_termination_i____bswap_64 [2018-04-05 16:04:54,526 INFO L128 BoogieDeclarations]: Found specification of procedure __ctype_get_mb_cur_max [2018-04-05 16:04:54,526 INFO L128 BoogieDeclarations]: Found specification of procedure atof [2018-04-05 16:04:54,526 INFO L128 BoogieDeclarations]: Found specification of procedure atoi [2018-04-05 16:04:54,526 INFO L128 BoogieDeclarations]: Found specification of procedure atol [2018-04-05 16:04:54,526 INFO L128 BoogieDeclarations]: Found specification of procedure atoll [2018-04-05 16:04:54,526 INFO L128 BoogieDeclarations]: Found specification of procedure strtod [2018-04-05 16:04:54,527 INFO L128 BoogieDeclarations]: Found specification of procedure strtof [2018-04-05 16:04:54,527 INFO L128 BoogieDeclarations]: Found specification of procedure strtold [2018-04-05 16:04:54,527 INFO L128 BoogieDeclarations]: Found specification of procedure strtol [2018-04-05 16:04:54,527 INFO L128 BoogieDeclarations]: Found specification of procedure strtoul [2018-04-05 16:04:54,527 INFO L128 BoogieDeclarations]: Found specification of procedure strtoq [2018-04-05 16:04:54,527 INFO L128 BoogieDeclarations]: Found specification of procedure strtouq [2018-04-05 16:04:54,527 INFO L128 BoogieDeclarations]: Found specification of procedure strtoll [2018-04-05 16:04:54,527 INFO L128 BoogieDeclarations]: Found specification of procedure strtoull [2018-04-05 16:04:54,527 INFO L128 BoogieDeclarations]: Found specification of procedure l64a [2018-04-05 16:04:54,528 INFO L128 BoogieDeclarations]: Found specification of procedure a64l [2018-04-05 16:04:54,528 INFO L128 BoogieDeclarations]: Found specification of procedure select [2018-04-05 16:04:54,528 INFO L128 BoogieDeclarations]: Found specification of procedure pselect [2018-04-05 16:04:54,528 INFO L128 BoogieDeclarations]: Found specification of procedure gnu_dev_major [2018-04-05 16:04:54,528 INFO L128 BoogieDeclarations]: Found specification of procedure gnu_dev_minor [2018-04-05 16:04:54,528 INFO L128 BoogieDeclarations]: Found specification of procedure gnu_dev_makedev [2018-04-05 16:04:54,528 INFO L128 BoogieDeclarations]: Found specification of procedure random [2018-04-05 16:04:54,528 INFO L128 BoogieDeclarations]: Found specification of procedure srandom [2018-04-05 16:04:54,528 INFO L128 BoogieDeclarations]: Found specification of procedure initstate [2018-04-05 16:04:54,529 INFO L128 BoogieDeclarations]: Found specification of procedure setstate [2018-04-05 16:04:54,537 INFO L128 BoogieDeclarations]: Found specification of procedure random_r [2018-04-05 16:04:54,537 INFO L128 BoogieDeclarations]: Found specification of procedure srandom_r [2018-04-05 16:04:54,537 INFO L128 BoogieDeclarations]: Found specification of procedure initstate_r [2018-04-05 16:04:54,538 INFO L128 BoogieDeclarations]: Found specification of procedure setstate_r [2018-04-05 16:04:54,542 INFO L128 BoogieDeclarations]: Found specification of procedure rand [2018-04-05 16:04:54,542 INFO L128 BoogieDeclarations]: Found specification of procedure srand [2018-04-05 16:04:54,542 INFO L128 BoogieDeclarations]: Found specification of procedure rand_r [2018-04-05 16:04:54,542 INFO L128 BoogieDeclarations]: Found specification of procedure drand48 [2018-04-05 16:04:54,542 INFO L128 BoogieDeclarations]: Found specification of procedure erand48 [2018-04-05 16:04:54,542 INFO L128 BoogieDeclarations]: Found specification of procedure lrand48 [2018-04-05 16:04:54,543 INFO L128 BoogieDeclarations]: Found specification of procedure nrand48 [2018-04-05 16:04:54,543 INFO L128 BoogieDeclarations]: Found specification of procedure mrand48 [2018-04-05 16:04:54,543 INFO L128 BoogieDeclarations]: Found specification of procedure jrand48 [2018-04-05 16:04:54,543 INFO L128 BoogieDeclarations]: Found specification of procedure srand48 [2018-04-05 16:04:54,543 INFO L128 BoogieDeclarations]: Found specification of procedure seed48 [2018-04-05 16:04:54,543 INFO L128 BoogieDeclarations]: Found specification of procedure lcong48 [2018-04-05 16:04:54,543 INFO L128 BoogieDeclarations]: Found specification of procedure drand48_r [2018-04-05 16:04:54,543 INFO L128 BoogieDeclarations]: Found specification of procedure erand48_r [2018-04-05 16:04:54,543 INFO L128 BoogieDeclarations]: Found specification of procedure lrand48_r [2018-04-05 16:04:54,544 INFO L128 BoogieDeclarations]: Found specification of procedure nrand48_r [2018-04-05 16:04:54,544 INFO L128 BoogieDeclarations]: Found specification of procedure mrand48_r [2018-04-05 16:04:54,544 INFO L128 BoogieDeclarations]: Found specification of procedure jrand48_r [2018-04-05 16:04:54,544 INFO L128 BoogieDeclarations]: Found specification of procedure srand48_r [2018-04-05 16:04:54,544 INFO L128 BoogieDeclarations]: Found specification of procedure seed48_r [2018-04-05 16:04:54,544 INFO L128 BoogieDeclarations]: Found specification of procedure lcong48_r [2018-04-05 16:04:54,544 INFO L128 BoogieDeclarations]: Found specification of procedure malloc [2018-04-05 16:04:54,544 INFO L128 BoogieDeclarations]: Found specification of procedure calloc [2018-04-05 16:04:54,544 INFO L128 BoogieDeclarations]: Found specification of procedure realloc [2018-04-05 16:04:54,545 INFO L128 BoogieDeclarations]: Found specification of procedure free [2018-04-05 16:04:54,545 INFO L128 BoogieDeclarations]: Found specification of procedure cfree [2018-04-05 16:04:54,545 INFO L128 BoogieDeclarations]: Found specification of procedure alloca [2018-04-05 16:04:54,545 INFO L128 BoogieDeclarations]: Found specification of procedure valloc [2018-04-05 16:04:54,545 INFO L128 BoogieDeclarations]: Found specification of procedure posix_memalign [2018-04-05 16:04:54,545 INFO L128 BoogieDeclarations]: Found specification of procedure abort [2018-04-05 16:04:54,545 INFO L128 BoogieDeclarations]: Found specification of procedure atexit [2018-04-05 16:04:54,545 INFO L128 BoogieDeclarations]: Found specification of procedure on_exit [2018-04-05 16:04:54,545 INFO L128 BoogieDeclarations]: Found specification of procedure exit [2018-04-05 16:04:54,546 INFO L128 BoogieDeclarations]: Found specification of procedure _Exit [2018-04-05 16:04:54,569 INFO L128 BoogieDeclarations]: Found specification of procedure getenv [2018-04-05 16:04:54,569 INFO L128 BoogieDeclarations]: Found specification of procedure putenv [2018-04-05 16:04:54,569 INFO L128 BoogieDeclarations]: Found specification of procedure setenv [2018-04-05 16:04:54,569 INFO L128 BoogieDeclarations]: Found specification of procedure unsetenv [2018-04-05 16:04:54,569 INFO L128 BoogieDeclarations]: Found specification of procedure clearenv [2018-04-05 16:04:54,570 INFO L128 BoogieDeclarations]: Found specification of procedure mktemp [2018-04-05 16:04:54,570 INFO L128 BoogieDeclarations]: Found specification of procedure mkstemp [2018-04-05 16:04:54,570 INFO L128 BoogieDeclarations]: Found specification of procedure mkstemps [2018-04-05 16:04:54,570 INFO L128 BoogieDeclarations]: Found specification of procedure mkdtemp [2018-04-05 16:04:54,570 INFO L128 BoogieDeclarations]: Found specification of procedure system [2018-04-05 16:04:54,570 INFO L128 BoogieDeclarations]: Found specification of procedure realpath [2018-04-05 16:04:54,570 INFO L128 BoogieDeclarations]: Found specification of procedure bsearch [2018-04-05 16:04:54,570 INFO L128 BoogieDeclarations]: Found specification of procedure qsort [2018-04-05 16:04:54,571 INFO L128 BoogieDeclarations]: Found specification of procedure abs [2018-04-05 16:04:54,571 INFO L128 BoogieDeclarations]: Found specification of procedure labs [2018-04-05 16:04:54,571 INFO L128 BoogieDeclarations]: Found specification of procedure llabs [2018-04-05 16:04:54,572 INFO L128 BoogieDeclarations]: Found specification of procedure div [2018-04-05 16:04:54,572 INFO L128 BoogieDeclarations]: Found specification of procedure ldiv [2018-04-05 16:04:54,572 INFO L128 BoogieDeclarations]: Found specification of procedure lldiv [2018-04-05 16:04:54,572 INFO L128 BoogieDeclarations]: Found specification of procedure ecvt [2018-04-05 16:04:54,572 INFO L128 BoogieDeclarations]: Found specification of procedure fcvt [2018-04-05 16:04:54,572 INFO L128 BoogieDeclarations]: Found specification of procedure gcvt [2018-04-05 16:04:54,572 INFO L128 BoogieDeclarations]: Found specification of procedure qecvt [2018-04-05 16:04:54,572 INFO L128 BoogieDeclarations]: Found specification of procedure qfcvt [2018-04-05 16:04:54,572 INFO L128 BoogieDeclarations]: Found specification of procedure qgcvt [2018-04-05 16:04:54,573 INFO L128 BoogieDeclarations]: Found specification of procedure ecvt_r [2018-04-05 16:04:54,573 INFO L128 BoogieDeclarations]: Found specification of procedure fcvt_r [2018-04-05 16:04:54,573 INFO L128 BoogieDeclarations]: Found specification of procedure qecvt_r [2018-04-05 16:04:54,573 INFO L128 BoogieDeclarations]: Found specification of procedure qfcvt_r [2018-04-05 16:04:54,573 INFO L128 BoogieDeclarations]: Found specification of procedure mblen [2018-04-05 16:04:54,573 INFO L128 BoogieDeclarations]: Found specification of procedure mbtowc [2018-04-05 16:04:54,573 INFO L128 BoogieDeclarations]: Found specification of procedure wctomb [2018-04-05 16:04:54,573 INFO L128 BoogieDeclarations]: Found specification of procedure mbstowcs [2018-04-05 16:04:54,573 INFO L128 BoogieDeclarations]: Found specification of procedure wcstombs [2018-04-05 16:04:54,580 INFO L128 BoogieDeclarations]: Found specification of procedure rpmatch [2018-04-05 16:04:54,580 INFO L128 BoogieDeclarations]: Found specification of procedure getsubopt [2018-04-05 16:04:54,580 INFO L128 BoogieDeclarations]: Found specification of procedure getloadavg [2018-04-05 16:04:54,580 INFO L128 BoogieDeclarations]: Found specification of procedure __VERIFIER_nondet_int [2018-04-05 16:04:54,580 INFO L128 BoogieDeclarations]: Found specification of procedure __U_MULTI_fopenbsd_cstpcpy_alloca_true_valid_memsafety_true_termination_i__cstpcpy [2018-04-05 16:04:54,580 INFO L128 BoogieDeclarations]: Found specification of procedure read~int [2018-04-05 16:04:54,581 INFO L128 BoogieDeclarations]: Found specification of procedure write~int [2018-04-05 16:04:54,581 INFO L128 BoogieDeclarations]: Found specification of procedure main [2018-04-05 16:04:54,581 INFO L128 BoogieDeclarations]: Found specification of procedure #Ultimate.alloc [2018-04-05 16:04:54,581 INFO L128 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2018-04-05 16:04:54,581 INFO L128 BoogieDeclarations]: Found specification of procedure ULTIMATE.init [2018-04-05 16:04:54,581 INFO L128 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2018-04-05 16:04:54,581 INFO L128 BoogieDeclarations]: Found specification of procedure write~unchecked~int [2018-04-05 16:04:55,762 INFO L259 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2018-04-05 16:04:55,765 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 05.04 04:04:55 BoogieIcfgContainer [2018-04-05 16:04:55,765 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2018-04-05 16:04:55,766 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2018-04-05 16:04:55,766 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2018-04-05 16:04:55,773 INFO L276 PluginConnector]: TraceAbstraction initialized [2018-04-05 16:04:55,773 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 05.04 04:04:53" (1/3) ... [2018-04-05 16:04:55,785 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@2fcf5d26 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 05.04 04:04:55, skipping insertion in model container [2018-04-05 16:04:55,785 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 05.04 04:04:53" (2/3) ... [2018-04-05 16:04:55,786 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@2fcf5d26 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 05.04 04:04:55, skipping insertion in model container [2018-04-05 16:04:55,786 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 05.04 04:04:55" (3/3) ... [2018-04-05 16:04:55,788 INFO L107 eAbstractionObserver]: Analyzing ICFG openbsd_cstpcpy-alloca_true-valid-memsafety_true-termination.i [2018-04-05 16:04:55,823 INFO L131 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2018-04-05 16:04:55,842 INFO L143 ceAbstractionStarter]: Appying trace abstraction to program that has 7 error locations. [2018-04-05 16:04:56,022 INFO L128 ementStrategyFactory]: Using default assertion order modulation [2018-04-05 16:04:56,023 INFO L369 AbstractCegarLoop]: Interprodecural is true [2018-04-05 16:04:56,023 INFO L370 AbstractCegarLoop]: Hoare is true [2018-04-05 16:04:56,023 INFO L371 AbstractCegarLoop]: Compute interpolants for FPandBP [2018-04-05 16:04:56,023 INFO L372 AbstractCegarLoop]: Backedges is TWOTRACK [2018-04-05 16:04:56,023 INFO L373 AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2018-04-05 16:04:56,023 INFO L374 AbstractCegarLoop]: Difference is false [2018-04-05 16:04:56,024 INFO L375 AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA [2018-04-05 16:04:56,024 INFO L380 AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == AllErrorsAtOnce======== [2018-04-05 16:04:56,025 INFO L87 2NestedWordAutomaton]: Mode: main mode - execution starts in main procedure [2018-04-05 16:04:56,077 INFO L276 IsEmpty]: Start isEmpty. Operand 58 states. [2018-04-05 16:04:56,090 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 18 [2018-04-05 16:04:56,090 INFO L347 BasicCegarLoop]: Found error trace [2018-04-05 16:04:56,092 INFO L355 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2018-04-05 16:04:56,092 INFO L408 AbstractCegarLoop]: === Iteration 1 === [mainErr1RequiresViolation, mainErr2EnsuresViolationMEMORY_LEAK, mainErr0RequiresViolation, __U_MULTI_fopenbsd_cstpcpy_alloca_true_valid_memsafety_true_termination_i__cstpcpyErr3RequiresViolation, __U_MULTI_fopenbsd_cstpcpy_alloca_true_valid_memsafety_true_termination_i__cstpcpyErr1RequiresViolation, __U_MULTI_fopenbsd_cstpcpy_alloca_true_valid_memsafety_true_termination_i__cstpcpyErr0RequiresViolation, __U_MULTI_fopenbsd_cstpcpy_alloca_true_valid_memsafety_true_termination_i__cstpcpyErr2RequiresViolation]=== [2018-04-05 16:04:56,108 INFO L82 PathProgramCache]: Analyzing trace with hash 1453934677, now seen corresponding path program 1 times No working directory specified, using /storage/ultimate/releaseScripts/default/UAutomizer-linux/z3 Starting monitored process 2 with z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 2 with z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2018-04-05 16:04:56,144 INFO L68 tionRefinementEngine]: Using refinement strategy FixedRefinementStrategy [2018-04-05 16:04:56,200 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-04-05 16:04:56,210 INFO L270 TraceCheckSpWp]: Computing forward predicates... [2018-04-05 16:04:56,272 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-04-05 16:04:56,272 INFO L314 TraceCheckSpWp]: Computing backward predicates... [2018-04-05 16:04:56,309 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-04-05 16:04:56,357 INFO L320 seRefinementStrategy]: Constructing automaton from 2 perfect and 0 imperfect interpolant sequences. [2018-04-05 16:04:56,357 INFO L335 seRefinementStrategy]: Number of different interpolants: perfect sequences [2, 2] imperfect sequences [] total 2 [2018-04-05 16:04:56,359 INFO L442 AbstractCegarLoop]: Interpolant automaton has 3 states [2018-04-05 16:04:56,385 INFO L132 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2018-04-05 16:04:56,385 INFO L133 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2018-04-05 16:04:56,388 INFO L87 Difference]: Start difference. First operand 58 states. Second operand 3 states. [2018-04-05 16:04:56,560 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-04-05 16:04:56,560 INFO L93 Difference]: Finished difference Result 73 states and 77 transitions. [2018-04-05 16:04:56,562 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2018-04-05 16:04:56,563 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 17 [2018-04-05 16:04:56,564 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-04-05 16:04:56,586 INFO L225 Difference]: With dead ends: 73 [2018-04-05 16:04:56,586 INFO L226 Difference]: Without dead ends: 54 [2018-04-05 16:04:56,596 INFO L567 BasicCegarLoop]: 0 DeclaredPredicates, 33 GetRequests, 32 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2018-04-05 16:04:56,632 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 54 states. [2018-04-05 16:04:56,674 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 54 to 54. [2018-04-05 16:04:56,676 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 54 states. [2018-04-05 16:04:56,680 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 54 states to 54 states and 56 transitions. [2018-04-05 16:04:56,681 INFO L78 Accepts]: Start accepts. Automaton has 54 states and 56 transitions. Word has length 17 [2018-04-05 16:04:56,682 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-04-05 16:04:56,682 INFO L459 AbstractCegarLoop]: Abstraction has 54 states and 56 transitions. [2018-04-05 16:04:56,682 INFO L460 AbstractCegarLoop]: Interpolant automaton has 3 states. [2018-04-05 16:04:56,682 INFO L276 IsEmpty]: Start isEmpty. Operand 54 states and 56 transitions. [2018-04-05 16:04:56,683 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 21 [2018-04-05 16:04:56,683 INFO L347 BasicCegarLoop]: Found error trace [2018-04-05 16:04:56,683 INFO L355 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2018-04-05 16:04:56,683 INFO L408 AbstractCegarLoop]: === Iteration 2 === [mainErr1RequiresViolation, mainErr2EnsuresViolationMEMORY_LEAK, mainErr0RequiresViolation, __U_MULTI_fopenbsd_cstpcpy_alloca_true_valid_memsafety_true_termination_i__cstpcpyErr3RequiresViolation, __U_MULTI_fopenbsd_cstpcpy_alloca_true_valid_memsafety_true_termination_i__cstpcpyErr1RequiresViolation, __U_MULTI_fopenbsd_cstpcpy_alloca_true_valid_memsafety_true_termination_i__cstpcpyErr0RequiresViolation, __U_MULTI_fopenbsd_cstpcpy_alloca_true_valid_memsafety_true_termination_i__cstpcpyErr2RequiresViolation]=== [2018-04-05 16:04:56,683 INFO L82 PathProgramCache]: Analyzing trace with hash -518464804, now seen corresponding path program 1 times No working directory specified, using /storage/ultimate/releaseScripts/default/UAutomizer-linux/z3 Starting monitored process 3 with z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 3 with z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2018-04-05 16:04:56,694 INFO L68 tionRefinementEngine]: Using refinement strategy FixedRefinementStrategy [2018-04-05 16:04:56,746 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-04-05 16:04:56,749 INFO L270 TraceCheckSpWp]: Computing forward predicates... [2018-04-05 16:04:56,830 INFO L477 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 6 treesize of output 5 [2018-04-05 16:04:56,832 INFO L267 ElimStorePlain]: Start of recursive call 2: End of recursive call: and 1 xjuncts. [2018-04-05 16:04:56,850 INFO L267 ElimStorePlain]: Start of recursive call 1: 1 dim-1 vars, End of recursive call: and 1 xjuncts. [2018-04-05 16:04:56,851 INFO L202 ElimStorePlain]: Needed 2 recursive calls to eliminate 1 variables, input treesize:6, output treesize:5 [2018-04-05 16:04:56,987 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-04-05 16:04:56,987 INFO L314 TraceCheckSpWp]: Computing backward predicates... [2018-04-05 16:04:57,026 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-04-05 16:04:57,048 INFO L320 seRefinementStrategy]: Constructing automaton from 2 perfect and 0 imperfect interpolant sequences. [2018-04-05 16:04:57,048 INFO L335 seRefinementStrategy]: Number of different interpolants: perfect sequences [3, 3] imperfect sequences [] total 3 [2018-04-05 16:04:57,050 INFO L442 AbstractCegarLoop]: Interpolant automaton has 4 states [2018-04-05 16:04:57,051 INFO L132 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2018-04-05 16:04:57,051 INFO L133 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2018-04-05 16:04:57,051 INFO L87 Difference]: Start difference. First operand 54 states and 56 transitions. Second operand 4 states. [2018-04-05 16:04:57,115 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-04-05 16:04:57,115 INFO L93 Difference]: Finished difference Result 54 states and 56 transitions. [2018-04-05 16:04:57,115 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2018-04-05 16:04:57,116 INFO L78 Accepts]: Start accepts. Automaton has 4 states. Word has length 20 [2018-04-05 16:04:57,116 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-04-05 16:04:57,117 INFO L225 Difference]: With dead ends: 54 [2018-04-05 16:04:57,117 INFO L226 Difference]: Without dead ends: 53 [2018-04-05 16:04:57,118 INFO L567 BasicCegarLoop]: 0 DeclaredPredicates, 40 GetRequests, 37 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2018-04-05 16:04:57,118 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 53 states. [2018-04-05 16:04:57,124 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 53 to 53. [2018-04-05 16:04:57,124 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 53 states. [2018-04-05 16:04:57,126 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 53 states to 53 states and 55 transitions. [2018-04-05 16:04:57,126 INFO L78 Accepts]: Start accepts. Automaton has 53 states and 55 transitions. Word has length 20 [2018-04-05 16:04:57,127 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-04-05 16:04:57,127 INFO L459 AbstractCegarLoop]: Abstraction has 53 states and 55 transitions. [2018-04-05 16:04:57,127 INFO L460 AbstractCegarLoop]: Interpolant automaton has 4 states. [2018-04-05 16:04:57,127 INFO L276 IsEmpty]: Start isEmpty. Operand 53 states and 55 transitions. [2018-04-05 16:04:57,128 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 21 [2018-04-05 16:04:57,128 INFO L347 BasicCegarLoop]: Found error trace [2018-04-05 16:04:57,128 INFO L355 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2018-04-05 16:04:57,128 INFO L408 AbstractCegarLoop]: === Iteration 3 === [mainErr1RequiresViolation, mainErr2EnsuresViolationMEMORY_LEAK, mainErr0RequiresViolation, __U_MULTI_fopenbsd_cstpcpy_alloca_true_valid_memsafety_true_termination_i__cstpcpyErr3RequiresViolation, __U_MULTI_fopenbsd_cstpcpy_alloca_true_valid_memsafety_true_termination_i__cstpcpyErr1RequiresViolation, __U_MULTI_fopenbsd_cstpcpy_alloca_true_valid_memsafety_true_termination_i__cstpcpyErr0RequiresViolation, __U_MULTI_fopenbsd_cstpcpy_alloca_true_valid_memsafety_true_termination_i__cstpcpyErr2RequiresViolation]=== [2018-04-05 16:04:57,129 INFO L82 PathProgramCache]: Analyzing trace with hash -518464803, now seen corresponding path program 1 times No working directory specified, using /storage/ultimate/releaseScripts/default/UAutomizer-linux/z3 Starting monitored process 4 with z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 4 with z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2018-04-05 16:04:57,136 INFO L68 tionRefinementEngine]: Using refinement strategy FixedRefinementStrategy [2018-04-05 16:04:57,166 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-04-05 16:04:57,169 INFO L270 TraceCheckSpWp]: Computing forward predicates... [2018-04-05 16:04:57,228 INFO L477 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 6 treesize of output 5 [2018-04-05 16:04:57,228 INFO L267 ElimStorePlain]: Start of recursive call 2: End of recursive call: and 1 xjuncts. [2018-04-05 16:04:57,237 INFO L267 ElimStorePlain]: Start of recursive call 1: 1 dim-1 vars, End of recursive call: and 1 xjuncts. [2018-04-05 16:04:57,238 INFO L202 ElimStorePlain]: Needed 2 recursive calls to eliminate 1 variables, input treesize:13, output treesize:12 [2018-04-05 16:04:57,337 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-04-05 16:04:57,338 INFO L314 TraceCheckSpWp]: Computing backward predicates... [2018-04-05 16:04:57,458 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-04-05 16:04:57,494 INFO L320 seRefinementStrategy]: Constructing automaton from 2 perfect and 0 imperfect interpolant sequences. [2018-04-05 16:04:57,495 INFO L335 seRefinementStrategy]: Number of different interpolants: perfect sequences [4, 4] imperfect sequences [] total 6 [2018-04-05 16:04:57,495 INFO L442 AbstractCegarLoop]: Interpolant automaton has 7 states [2018-04-05 16:04:57,495 INFO L132 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2018-04-05 16:04:57,496 INFO L133 InterpolantAutomaton]: CoverageRelationStatistics Valid=15, Invalid=27, Unknown=0, NotChecked=0, Total=42 [2018-04-05 16:04:57,496 INFO L87 Difference]: Start difference. First operand 53 states and 55 transitions. Second operand 7 states. [2018-04-05 16:04:57,843 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-04-05 16:04:57,843 INFO L93 Difference]: Finished difference Result 53 states and 55 transitions. [2018-04-05 16:04:57,843 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2018-04-05 16:04:57,843 INFO L78 Accepts]: Start accepts. Automaton has 7 states. Word has length 20 [2018-04-05 16:04:57,844 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-04-05 16:04:57,844 INFO L225 Difference]: With dead ends: 53 [2018-04-05 16:04:57,844 INFO L226 Difference]: Without dead ends: 52 [2018-04-05 16:04:57,845 INFO L567 BasicCegarLoop]: 0 DeclaredPredicates, 40 GetRequests, 34 SyntacticMatches, 0 SemanticMatches, 6 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 5 ImplicationChecksByTransitivity, 0.3s TimeCoverageRelationStatistics Valid=22, Invalid=34, Unknown=0, NotChecked=0, Total=56 [2018-04-05 16:04:57,845 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 52 states. [2018-04-05 16:04:57,849 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 52 to 52. [2018-04-05 16:04:57,850 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 52 states. [2018-04-05 16:04:57,851 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 52 states to 52 states and 54 transitions. [2018-04-05 16:04:57,851 INFO L78 Accepts]: Start accepts. Automaton has 52 states and 54 transitions. Word has length 20 [2018-04-05 16:04:57,851 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-04-05 16:04:57,851 INFO L459 AbstractCegarLoop]: Abstraction has 52 states and 54 transitions. [2018-04-05 16:04:57,851 INFO L460 AbstractCegarLoop]: Interpolant automaton has 7 states. [2018-04-05 16:04:57,851 INFO L276 IsEmpty]: Start isEmpty. Operand 52 states and 54 transitions. [2018-04-05 16:04:57,852 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 26 [2018-04-05 16:04:57,852 INFO L347 BasicCegarLoop]: Found error trace [2018-04-05 16:04:57,852 INFO L355 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2018-04-05 16:04:57,852 INFO L408 AbstractCegarLoop]: === Iteration 4 === [mainErr1RequiresViolation, mainErr2EnsuresViolationMEMORY_LEAK, mainErr0RequiresViolation, __U_MULTI_fopenbsd_cstpcpy_alloca_true_valid_memsafety_true_termination_i__cstpcpyErr3RequiresViolation, __U_MULTI_fopenbsd_cstpcpy_alloca_true_valid_memsafety_true_termination_i__cstpcpyErr1RequiresViolation, __U_MULTI_fopenbsd_cstpcpy_alloca_true_valid_memsafety_true_termination_i__cstpcpyErr0RequiresViolation, __U_MULTI_fopenbsd_cstpcpy_alloca_true_valid_memsafety_true_termination_i__cstpcpyErr2RequiresViolation]=== [2018-04-05 16:04:57,852 INFO L82 PathProgramCache]: Analyzing trace with hash -1999470402, now seen corresponding path program 1 times No working directory specified, using /storage/ultimate/releaseScripts/default/UAutomizer-linux/z3 Starting monitored process 5 with z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 5 with z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2018-04-05 16:04:57,860 INFO L68 tionRefinementEngine]: Using refinement strategy FixedRefinementStrategy [2018-04-05 16:04:57,877 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-04-05 16:04:57,879 INFO L270 TraceCheckSpWp]: Computing forward predicates... [2018-04-05 16:04:57,891 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-04-05 16:04:57,891 INFO L314 TraceCheckSpWp]: Computing backward predicates... [2018-04-05 16:04:57,899 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-04-05 16:04:57,922 INFO L320 seRefinementStrategy]: Constructing automaton from 2 perfect and 0 imperfect interpolant sequences. [2018-04-05 16:04:57,922 INFO L335 seRefinementStrategy]: Number of different interpolants: perfect sequences [4, 4] imperfect sequences [] total 4 [2018-04-05 16:04:57,922 INFO L442 AbstractCegarLoop]: Interpolant automaton has 5 states [2018-04-05 16:04:57,923 INFO L132 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2018-04-05 16:04:57,923 INFO L133 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2018-04-05 16:04:57,923 INFO L87 Difference]: Start difference. First operand 52 states and 54 transitions. Second operand 5 states. [2018-04-05 16:04:57,997 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-04-05 16:04:57,997 INFO L93 Difference]: Finished difference Result 52 states and 54 transitions. [2018-04-05 16:04:57,998 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2018-04-05 16:04:57,998 INFO L78 Accepts]: Start accepts. Automaton has 5 states. Word has length 25 [2018-04-05 16:04:57,998 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-04-05 16:04:57,999 INFO L225 Difference]: With dead ends: 52 [2018-04-05 16:04:57,999 INFO L226 Difference]: Without dead ends: 51 [2018-04-05 16:04:58,000 INFO L567 BasicCegarLoop]: 0 DeclaredPredicates, 50 GetRequests, 46 SyntacticMatches, 0 SemanticMatches, 4 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=11, Invalid=19, Unknown=0, NotChecked=0, Total=30 [2018-04-05 16:04:58,000 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 51 states. [2018-04-05 16:04:58,005 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 51 to 51. [2018-04-05 16:04:58,006 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 51 states. [2018-04-05 16:04:58,008 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 51 states to 51 states and 53 transitions. [2018-04-05 16:04:58,008 INFO L78 Accepts]: Start accepts. Automaton has 51 states and 53 transitions. Word has length 25 [2018-04-05 16:04:58,008 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-04-05 16:04:58,009 INFO L459 AbstractCegarLoop]: Abstraction has 51 states and 53 transitions. [2018-04-05 16:04:58,009 INFO L460 AbstractCegarLoop]: Interpolant automaton has 5 states. [2018-04-05 16:04:58,009 INFO L276 IsEmpty]: Start isEmpty. Operand 51 states and 53 transitions. [2018-04-05 16:04:58,010 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 26 [2018-04-05 16:04:58,010 INFO L347 BasicCegarLoop]: Found error trace [2018-04-05 16:04:58,010 INFO L355 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2018-04-05 16:04:58,010 INFO L408 AbstractCegarLoop]: === Iteration 5 === [mainErr1RequiresViolation, mainErr2EnsuresViolationMEMORY_LEAK, mainErr0RequiresViolation, __U_MULTI_fopenbsd_cstpcpy_alloca_true_valid_memsafety_true_termination_i__cstpcpyErr3RequiresViolation, __U_MULTI_fopenbsd_cstpcpy_alloca_true_valid_memsafety_true_termination_i__cstpcpyErr1RequiresViolation, __U_MULTI_fopenbsd_cstpcpy_alloca_true_valid_memsafety_true_termination_i__cstpcpyErr0RequiresViolation, __U_MULTI_fopenbsd_cstpcpy_alloca_true_valid_memsafety_true_termination_i__cstpcpyErr2RequiresViolation]=== [2018-04-05 16:04:58,010 INFO L82 PathProgramCache]: Analyzing trace with hash -1999470401, now seen corresponding path program 1 times No working directory specified, using /storage/ultimate/releaseScripts/default/UAutomizer-linux/z3 Starting monitored process 6 with z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 6 with z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2018-04-05 16:04:58,017 INFO L68 tionRefinementEngine]: Using refinement strategy FixedRefinementStrategy [2018-04-05 16:04:58,053 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-04-05 16:04:58,056 INFO L270 TraceCheckSpWp]: Computing forward predicates... [2018-04-05 16:04:58,239 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-04-05 16:04:58,239 INFO L314 TraceCheckSpWp]: Computing backward predicates... [2018-04-05 16:04:58,259 INFO L477 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 12 treesize of output 10 [2018-04-05 16:04:58,259 INFO L267 ElimStorePlain]: Start of recursive call 2: End of recursive call: and 1 xjuncts. [2018-04-05 16:04:58,296 INFO L477 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 16 treesize of output 12 [2018-04-05 16:04:58,297 INFO L267 ElimStorePlain]: Start of recursive call 3: End of recursive call: and 1 xjuncts. [2018-04-05 16:04:58,333 INFO L267 ElimStorePlain]: Start of recursive call 1: 2 dim-0 vars, 2 dim-1 vars, End of recursive call: and 2 xjuncts. [2018-04-05 16:04:58,334 INFO L202 ElimStorePlain]: Needed 3 recursive calls to eliminate 4 variables, input treesize:29, output treesize:7 [2018-04-05 16:04:58,372 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-04-05 16:04:58,395 INFO L320 seRefinementStrategy]: Constructing automaton from 2 perfect and 0 imperfect interpolant sequences. [2018-04-05 16:04:58,395 INFO L335 seRefinementStrategy]: Number of different interpolants: perfect sequences [7, 7] imperfect sequences [] total 7 [2018-04-05 16:04:58,396 INFO L442 AbstractCegarLoop]: Interpolant automaton has 8 states [2018-04-05 16:04:58,396 INFO L132 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2018-04-05 16:04:58,396 INFO L133 InterpolantAutomaton]: CoverageRelationStatistics Valid=15, Invalid=41, Unknown=0, NotChecked=0, Total=56 [2018-04-05 16:04:58,396 INFO L87 Difference]: Start difference. First operand 51 states and 53 transitions. Second operand 8 states. [2018-04-05 16:04:58,535 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-04-05 16:04:58,535 INFO L93 Difference]: Finished difference Result 54 states and 56 transitions. [2018-04-05 16:04:58,535 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2018-04-05 16:04:58,535 INFO L78 Accepts]: Start accepts. Automaton has 8 states. Word has length 25 [2018-04-05 16:04:58,536 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-04-05 16:04:58,536 INFO L225 Difference]: With dead ends: 54 [2018-04-05 16:04:58,536 INFO L226 Difference]: Without dead ends: 53 [2018-04-05 16:04:58,536 INFO L567 BasicCegarLoop]: 0 DeclaredPredicates, 53 GetRequests, 41 SyntacticMatches, 2 SemanticMatches, 10 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 13 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=37, Invalid=95, Unknown=0, NotChecked=0, Total=132 [2018-04-05 16:04:58,537 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 53 states. [2018-04-05 16:04:58,540 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 53 to 53. [2018-04-05 16:04:58,540 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 53 states. [2018-04-05 16:04:58,541 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 53 states to 53 states and 55 transitions. [2018-04-05 16:04:58,541 INFO L78 Accepts]: Start accepts. Automaton has 53 states and 55 transitions. Word has length 25 [2018-04-05 16:04:58,542 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-04-05 16:04:58,542 INFO L459 AbstractCegarLoop]: Abstraction has 53 states and 55 transitions. [2018-04-05 16:04:58,542 INFO L460 AbstractCegarLoop]: Interpolant automaton has 8 states. [2018-04-05 16:04:58,542 INFO L276 IsEmpty]: Start isEmpty. Operand 53 states and 55 transitions. [2018-04-05 16:04:58,543 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 27 [2018-04-05 16:04:58,543 INFO L347 BasicCegarLoop]: Found error trace [2018-04-05 16:04:58,543 INFO L355 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2018-04-05 16:04:58,543 INFO L408 AbstractCegarLoop]: === Iteration 6 === [mainErr1RequiresViolation, mainErr2EnsuresViolationMEMORY_LEAK, mainErr0RequiresViolation, __U_MULTI_fopenbsd_cstpcpy_alloca_true_valid_memsafety_true_termination_i__cstpcpyErr3RequiresViolation, __U_MULTI_fopenbsd_cstpcpy_alloca_true_valid_memsafety_true_termination_i__cstpcpyErr1RequiresViolation, __U_MULTI_fopenbsd_cstpcpy_alloca_true_valid_memsafety_true_termination_i__cstpcpyErr0RequiresViolation, __U_MULTI_fopenbsd_cstpcpy_alloca_true_valid_memsafety_true_termination_i__cstpcpyErr2RequiresViolation]=== [2018-04-05 16:04:58,543 INFO L82 PathProgramCache]: Analyzing trace with hash -1854040335, now seen corresponding path program 1 times No working directory specified, using /storage/ultimate/releaseScripts/default/UAutomizer-linux/z3 Starting monitored process 7 with z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 7 with z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2018-04-05 16:04:58,550 INFO L68 tionRefinementEngine]: Using refinement strategy FixedRefinementStrategy [2018-04-05 16:04:58,566 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-04-05 16:04:58,569 INFO L270 TraceCheckSpWp]: Computing forward predicates... [2018-04-05 16:04:58,573 INFO L477 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 6 treesize of output 5 [2018-04-05 16:04:58,573 INFO L267 ElimStorePlain]: Start of recursive call 2: End of recursive call: and 1 xjuncts. [2018-04-05 16:04:58,575 INFO L267 ElimStorePlain]: Start of recursive call 1: 1 dim-1 vars, End of recursive call: and 1 xjuncts. [2018-04-05 16:04:58,575 INFO L202 ElimStorePlain]: Needed 2 recursive calls to eliminate 1 variables, input treesize:6, output treesize:5 [2018-04-05 16:04:58,584 INFO L477 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 12 treesize of output 11 [2018-04-05 16:04:58,584 INFO L267 ElimStorePlain]: Start of recursive call 2: End of recursive call: and 1 xjuncts. [2018-04-05 16:04:58,591 INFO L267 ElimStorePlain]: Start of recursive call 1: 1 dim-1 vars, End of recursive call: and 1 xjuncts. [2018-04-05 16:04:58,591 INFO L202 ElimStorePlain]: Needed 2 recursive calls to eliminate 1 variables, input treesize:12, output treesize:11 [2018-04-05 16:04:58,684 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-04-05 16:04:58,685 INFO L314 TraceCheckSpWp]: Computing backward predicates... [2018-04-05 16:04:58,799 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-04-05 16:04:58,830 INFO L320 seRefinementStrategy]: Constructing automaton from 2 perfect and 0 imperfect interpolant sequences. [2018-04-05 16:04:58,830 INFO L335 seRefinementStrategy]: Number of different interpolants: perfect sequences [7, 7] imperfect sequences [] total 9 [2018-04-05 16:04:58,831 INFO L442 AbstractCegarLoop]: Interpolant automaton has 10 states [2018-04-05 16:04:58,831 INFO L132 InterpolantAutomaton]: Constructing interpolant automaton starting with 10 interpolants. [2018-04-05 16:04:58,831 INFO L133 InterpolantAutomaton]: CoverageRelationStatistics Valid=25, Invalid=65, Unknown=0, NotChecked=0, Total=90 [2018-04-05 16:04:58,831 INFO L87 Difference]: Start difference. First operand 53 states and 55 transitions. Second operand 10 states. [2018-04-05 16:04:59,018 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-04-05 16:04:59,018 INFO L93 Difference]: Finished difference Result 53 states and 55 transitions. [2018-04-05 16:04:59,018 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2018-04-05 16:04:59,018 INFO L78 Accepts]: Start accepts. Automaton has 10 states. Word has length 26 [2018-04-05 16:04:59,019 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-04-05 16:04:59,019 INFO L225 Difference]: With dead ends: 53 [2018-04-05 16:04:59,019 INFO L226 Difference]: Without dead ends: 52 [2018-04-05 16:04:59,020 INFO L567 BasicCegarLoop]: 0 DeclaredPredicates, 55 GetRequests, 41 SyntacticMatches, 2 SemanticMatches, 12 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 23 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=53, Invalid=129, Unknown=0, NotChecked=0, Total=182 [2018-04-05 16:04:59,020 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 52 states. [2018-04-05 16:04:59,024 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 52 to 52. [2018-04-05 16:04:59,024 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 52 states. [2018-04-05 16:04:59,024 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 52 states to 52 states and 54 transitions. [2018-04-05 16:04:59,025 INFO L78 Accepts]: Start accepts. Automaton has 52 states and 54 transitions. Word has length 26 [2018-04-05 16:04:59,025 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-04-05 16:04:59,025 INFO L459 AbstractCegarLoop]: Abstraction has 52 states and 54 transitions. [2018-04-05 16:04:59,025 INFO L460 AbstractCegarLoop]: Interpolant automaton has 10 states. [2018-04-05 16:04:59,025 INFO L276 IsEmpty]: Start isEmpty. Operand 52 states and 54 transitions. [2018-04-05 16:04:59,025 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 27 [2018-04-05 16:04:59,026 INFO L347 BasicCegarLoop]: Found error trace [2018-04-05 16:04:59,026 INFO L355 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2018-04-05 16:04:59,026 INFO L408 AbstractCegarLoop]: === Iteration 7 === [mainErr1RequiresViolation, mainErr2EnsuresViolationMEMORY_LEAK, mainErr0RequiresViolation, __U_MULTI_fopenbsd_cstpcpy_alloca_true_valid_memsafety_true_termination_i__cstpcpyErr3RequiresViolation, __U_MULTI_fopenbsd_cstpcpy_alloca_true_valid_memsafety_true_termination_i__cstpcpyErr1RequiresViolation, __U_MULTI_fopenbsd_cstpcpy_alloca_true_valid_memsafety_true_termination_i__cstpcpyErr0RequiresViolation, __U_MULTI_fopenbsd_cstpcpy_alloca_true_valid_memsafety_true_termination_i__cstpcpyErr2RequiresViolation]=== [2018-04-05 16:04:59,026 INFO L82 PathProgramCache]: Analyzing trace with hash -1854040334, now seen corresponding path program 1 times No working directory specified, using /storage/ultimate/releaseScripts/default/UAutomizer-linux/z3 Starting monitored process 8 with z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 8 with z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2018-04-05 16:04:59,033 INFO L68 tionRefinementEngine]: Using refinement strategy FixedRefinementStrategy [2018-04-05 16:04:59,046 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-04-05 16:04:59,048 INFO L270 TraceCheckSpWp]: Computing forward predicates... [2018-04-05 16:04:59,058 INFO L477 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 6 treesize of output 5 [2018-04-05 16:04:59,059 INFO L267 ElimStorePlain]: Start of recursive call 2: End of recursive call: and 1 xjuncts. [2018-04-05 16:04:59,127 INFO L477 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 6 treesize of output 5 [2018-04-05 16:04:59,127 INFO L267 ElimStorePlain]: Start of recursive call 3: End of recursive call: and 1 xjuncts. [2018-04-05 16:04:59,132 INFO L267 ElimStorePlain]: Start of recursive call 1: 1 dim-0 vars, 2 dim-1 vars, End of recursive call: and 1 xjuncts. [2018-04-05 16:04:59,132 INFO L202 ElimStorePlain]: Needed 3 recursive calls to eliminate 3 variables, input treesize:19, output treesize:14 [2018-04-05 16:04:59,163 INFO L700 Elim1Store]: detected not equals via solver [2018-04-05 16:04:59,165 INFO L477 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 1 select indices, 1 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 12 treesize of output 15 [2018-04-05 16:04:59,166 INFO L267 ElimStorePlain]: Start of recursive call 2: End of recursive call: and 1 xjuncts. [2018-04-05 16:04:59,220 INFO L700 Elim1Store]: detected not equals via solver [2018-04-05 16:04:59,228 INFO L700 Elim1Store]: detected not equals via solver [2018-04-05 16:04:59,229 INFO L477 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 2 select indices, 2 select index equivalence classes, 2 disjoint index pairs (out of 1 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 11 treesize of output 4 [2018-04-05 16:04:59,229 INFO L267 ElimStorePlain]: Start of recursive call 3: End of recursive call: and 1 xjuncts. [2018-04-05 16:04:59,259 INFO L267 ElimStorePlain]: Start of recursive call 1: 1 dim-0 vars, 2 dim-1 vars, End of recursive call: and 1 xjuncts. [2018-04-05 16:04:59,260 INFO L202 ElimStorePlain]: Needed 3 recursive calls to eliminate 3 variables, input treesize:25, output treesize:13 [2018-04-05 16:04:59,536 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-04-05 16:04:59,564 INFO L314 TraceCheckSpWp]: Computing backward predicates... [2018-04-05 16:05:00,302 INFO L477 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 1 select indices, 1 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 10 treesize of output 3 [2018-04-05 16:05:00,303 INFO L267 ElimStorePlain]: Start of recursive call 2: End of recursive call: and 1 xjuncts. [2018-04-05 16:05:00,331 INFO L477 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 0 select indices, 0 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 11 treesize of output 15 [2018-04-05 16:05:00,396 INFO L477 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 1 select indices, 1 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 12 treesize of output 3 [2018-04-05 16:05:00,397 INFO L267 ElimStorePlain]: Start of recursive call 4: End of recursive call: and 1 xjuncts. [2018-04-05 16:05:00,404 WARN L307 Elim1Store]: Array PQE input equivalent to true [2018-04-05 16:05:00,404 INFO L267 ElimStorePlain]: Start of recursive call 5: End of recursive call: and 1 xjuncts. [2018-04-05 16:05:00,425 INFO L267 ElimStorePlain]: Start of recursive call 3: 1 dim-1 vars, End of recursive call: and 1 xjuncts. [2018-04-05 16:05:00,441 INFO L267 ElimStorePlain]: Start of recursive call 1: 3 dim-0 vars, 2 dim-1 vars, End of recursive call: and 1 xjuncts. [2018-04-05 16:05:00,442 INFO L202 ElimStorePlain]: Needed 5 recursive calls to eliminate 5 variables, input treesize:21, output treesize:3 [2018-04-05 16:05:00,482 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-04-05 16:05:00,520 INFO L320 seRefinementStrategy]: Constructing automaton from 2 perfect and 0 imperfect interpolant sequences. [2018-04-05 16:05:00,520 INFO L335 seRefinementStrategy]: Number of different interpolants: perfect sequences [8, 7] imperfect sequences [] total 13 [2018-04-05 16:05:00,521 INFO L442 AbstractCegarLoop]: Interpolant automaton has 14 states [2018-04-05 16:05:00,521 INFO L132 InterpolantAutomaton]: Constructing interpolant automaton starting with 14 interpolants. [2018-04-05 16:05:00,521 INFO L133 InterpolantAutomaton]: CoverageRelationStatistics Valid=34, Invalid=148, Unknown=0, NotChecked=0, Total=182 [2018-04-05 16:05:00,521 INFO L87 Difference]: Start difference. First operand 52 states and 54 transitions. Second operand 14 states. [2018-04-05 16:05:01,488 WARN L148 SmtUtils]: Spent 119ms on a formula simplification that was a NOOP. DAG size: 14 [2018-04-05 16:05:01,936 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-04-05 16:05:01,936 INFO L93 Difference]: Finished difference Result 65 states and 68 transitions. [2018-04-05 16:05:01,937 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 11 states. [2018-04-05 16:05:01,937 INFO L78 Accepts]: Start accepts. Automaton has 14 states. Word has length 26 [2018-04-05 16:05:01,937 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-04-05 16:05:01,939 INFO L225 Difference]: With dead ends: 65 [2018-04-05 16:05:01,940 INFO L226 Difference]: Without dead ends: 64 [2018-04-05 16:05:01,940 INFO L567 BasicCegarLoop]: 0 DeclaredPredicates, 58 GetRequests, 39 SyntacticMatches, 0 SemanticMatches, 19 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 35 ImplicationChecksByTransitivity, 1.8s TimeCoverageRelationStatistics Valid=88, Invalid=332, Unknown=0, NotChecked=0, Total=420 [2018-04-05 16:05:01,941 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 64 states. [2018-04-05 16:05:01,946 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 64 to 53. [2018-04-05 16:05:01,947 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 53 states. [2018-04-05 16:05:01,948 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 53 states to 53 states and 55 transitions. [2018-04-05 16:05:01,948 INFO L78 Accepts]: Start accepts. Automaton has 53 states and 55 transitions. Word has length 26 [2018-04-05 16:05:01,948 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-04-05 16:05:01,948 INFO L459 AbstractCegarLoop]: Abstraction has 53 states and 55 transitions. [2018-04-05 16:05:01,948 INFO L460 AbstractCegarLoop]: Interpolant automaton has 14 states. [2018-04-05 16:05:01,949 INFO L276 IsEmpty]: Start isEmpty. Operand 53 states and 55 transitions. [2018-04-05 16:05:01,949 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 37 [2018-04-05 16:05:01,950 INFO L347 BasicCegarLoop]: Found error trace [2018-04-05 16:05:01,950 INFO L355 BasicCegarLoop]: trace histogram [2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2018-04-05 16:05:01,950 INFO L408 AbstractCegarLoop]: === Iteration 8 === [mainErr1RequiresViolation, mainErr2EnsuresViolationMEMORY_LEAK, mainErr0RequiresViolation, __U_MULTI_fopenbsd_cstpcpy_alloca_true_valid_memsafety_true_termination_i__cstpcpyErr3RequiresViolation, __U_MULTI_fopenbsd_cstpcpy_alloca_true_valid_memsafety_true_termination_i__cstpcpyErr1RequiresViolation, __U_MULTI_fopenbsd_cstpcpy_alloca_true_valid_memsafety_true_termination_i__cstpcpyErr0RequiresViolation, __U_MULTI_fopenbsd_cstpcpy_alloca_true_valid_memsafety_true_termination_i__cstpcpyErr2RequiresViolation]=== [2018-04-05 16:05:01,950 INFO L82 PathProgramCache]: Analyzing trace with hash 231284215, now seen corresponding path program 1 times No working directory specified, using /storage/ultimate/releaseScripts/default/UAutomizer-linux/z3 Starting monitored process 9 with z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 9 with z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2018-04-05 16:05:01,964 INFO L68 tionRefinementEngine]: Using refinement strategy FixedRefinementStrategy [2018-04-05 16:05:02,036 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-04-05 16:05:02,044 INFO L270 TraceCheckSpWp]: Computing forward predicates... [2018-04-05 16:05:02,090 INFO L477 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 14 treesize of output 11 [2018-04-05 16:05:02,104 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 11 treesize of output 10 [2018-04-05 16:05:02,104 INFO L267 ElimStorePlain]: Start of recursive call 3: End of recursive call: and 1 xjuncts. [2018-04-05 16:05:02,110 INFO L267 ElimStorePlain]: Start of recursive call 2: 1 dim-1 vars, End of recursive call: and 1 xjuncts. [2018-04-05 16:05:02,136 INFO L267 ElimStorePlain]: Start of recursive call 1: 1 dim-0 vars, 1 dim-2 vars, End of recursive call: 1 dim-0 vars, and 1 xjuncts. [2018-04-05 16:05:02,136 INFO L202 ElimStorePlain]: Needed 3 recursive calls to eliminate 2 variables, input treesize:25, output treesize:21 [2018-04-05 16:05:02,264 INFO L477 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 0 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 18 treesize of output 14 [2018-04-05 16:05:02,298 INFO L477 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 2 select indices, 2 select index equivalence classes, 0 disjoint index pairs (out of 1 index pairs), introduced 0 new quantified variables, introduced 1 case distinctions, treesize of input 14 treesize of output 11 [2018-04-05 16:05:02,299 INFO L267 ElimStorePlain]: Start of recursive call 3: End of recursive call: and 2 xjuncts. [2018-04-05 16:05:02,319 INFO L267 ElimStorePlain]: Start of recursive call 2: 1 dim-1 vars, End of recursive call: and 2 xjuncts. [2018-04-05 16:05:02,411 INFO L267 ElimStorePlain]: Start of recursive call 1: 2 dim-0 vars, 1 dim-2 vars, End of recursive call: and 2 xjuncts. [2018-04-05 16:05:02,412 INFO L202 ElimStorePlain]: Needed 3 recursive calls to eliminate 3 variables, input treesize:34, output treesize:33 [2018-04-05 16:05:02,591 WARN L151 SmtUtils]: Spent 117ms on a formula simplification. DAG size of input: 17 DAG size of output 17 [2018-04-05 16:05:02,783 INFO L134 CoverageAnalysis]: Checked inductivity of 2 backedges. 0 proven. 2 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-04-05 16:05:02,784 INFO L314 TraceCheckSpWp]: Computing backward predicates... [2018-04-05 16:05:03,347 WARN L148 SmtUtils]: Spent 127ms on a formula simplification that was a NOOP. DAG size: 15 [2018-04-05 16:05:03,871 INFO L477 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 16 treesize of output 12 [2018-04-05 16:05:03,872 INFO L267 ElimStorePlain]: Start of recursive call 2: End of recursive call: and 1 xjuncts. [2018-04-05 16:05:03,957 INFO L477 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 0 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 13 treesize of output 11 [2018-04-05 16:05:04,030 INFO L477 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 1 select indices, 1 select index equivalence classes, 2 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 5 treesize of output 3 [2018-04-05 16:05:04,031 INFO L267 ElimStorePlain]: Start of recursive call 4: End of recursive call: and 1 xjuncts. [2018-04-05 16:05:04,036 INFO L267 ElimStorePlain]: Start of recursive call 3: 1 dim-1 vars, End of recursive call: and 1 xjuncts. [2018-04-05 16:05:04,085 INFO L267 ElimStorePlain]: Start of recursive call 1: 3 dim-0 vars, 1 dim-1 vars, 1 dim-2 vars, End of recursive call: and 1 xjuncts. [2018-04-05 16:05:04,086 INFO L202 ElimStorePlain]: Needed 4 recursive calls to eliminate 5 variables, input treesize:35, output treesize:7 [2018-04-05 16:05:04,124 INFO L134 CoverageAnalysis]: Checked inductivity of 2 backedges. 0 proven. 2 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-04-05 16:05:04,164 INFO L320 seRefinementStrategy]: Constructing automaton from 0 perfect and 2 imperfect interpolant sequences. [2018-04-05 16:05:04,164 INFO L335 seRefinementStrategy]: Number of different interpolants: perfect sequences [] imperfect sequences [8, 8] total 14 [2018-04-05 16:05:04,165 INFO L442 AbstractCegarLoop]: Interpolant automaton has 15 states [2018-04-05 16:05:04,165 INFO L132 InterpolantAutomaton]: Constructing interpolant automaton starting with 15 interpolants. [2018-04-05 16:05:04,166 INFO L133 InterpolantAutomaton]: CoverageRelationStatistics Valid=40, Invalid=170, Unknown=0, NotChecked=0, Total=210 [2018-04-05 16:05:04,166 INFO L87 Difference]: Start difference. First operand 53 states and 55 transitions. Second operand 15 states. [2018-04-05 16:05:04,828 WARN L151 SmtUtils]: Spent 196ms on a formula simplification. DAG size of input: 42 DAG size of output 40 [2018-04-05 16:05:05,668 WARN L151 SmtUtils]: Spent 369ms on a formula simplification. DAG size of input: 24 DAG size of output 23 [2018-04-05 16:05:05,963 WARN L151 SmtUtils]: Spent 129ms on a formula simplification. DAG size of input: 19 DAG size of output 18 [2018-04-05 16:05:06,835 WARN L151 SmtUtils]: Spent 409ms on a formula simplification. DAG size of input: 19 DAG size of output 16 [2018-04-05 16:05:07,420 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-04-05 16:05:07,420 INFO L93 Difference]: Finished difference Result 78 states and 82 transitions. [2018-04-05 16:05:07,421 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 14 states. [2018-04-05 16:05:07,421 INFO L78 Accepts]: Start accepts. Automaton has 15 states. Word has length 36 [2018-04-05 16:05:07,421 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-04-05 16:05:07,422 INFO L225 Difference]: With dead ends: 78 [2018-04-05 16:05:07,422 INFO L226 Difference]: Without dead ends: 77 [2018-04-05 16:05:07,423 INFO L567 BasicCegarLoop]: 0 DeclaredPredicates, 77 GetRequests, 57 SyntacticMatches, 1 SemanticMatches, 19 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 39 ImplicationChecksByTransitivity, 3.2s TimeCoverageRelationStatistics Valid=82, Invalid=338, Unknown=0, NotChecked=0, Total=420 [2018-04-05 16:05:07,423 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 77 states. [2018-04-05 16:05:07,438 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 77 to 63. [2018-04-05 16:05:07,439 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 63 states. [2018-04-05 16:05:07,451 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 63 states to 63 states and 66 transitions. [2018-04-05 16:05:07,451 INFO L78 Accepts]: Start accepts. Automaton has 63 states and 66 transitions. Word has length 36 [2018-04-05 16:05:07,451 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-04-05 16:05:07,452 INFO L459 AbstractCegarLoop]: Abstraction has 63 states and 66 transitions. [2018-04-05 16:05:07,452 INFO L460 AbstractCegarLoop]: Interpolant automaton has 15 states. [2018-04-05 16:05:07,452 INFO L276 IsEmpty]: Start isEmpty. Operand 63 states and 66 transitions. [2018-04-05 16:05:07,453 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 38 [2018-04-05 16:05:07,453 INFO L347 BasicCegarLoop]: Found error trace [2018-04-05 16:05:07,453 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] [2018-04-05 16:05:07,453 INFO L408 AbstractCegarLoop]: === Iteration 9 === [mainErr1RequiresViolation, mainErr2EnsuresViolationMEMORY_LEAK, mainErr0RequiresViolation, __U_MULTI_fopenbsd_cstpcpy_alloca_true_valid_memsafety_true_termination_i__cstpcpyErr3RequiresViolation, __U_MULTI_fopenbsd_cstpcpy_alloca_true_valid_memsafety_true_termination_i__cstpcpyErr1RequiresViolation, __U_MULTI_fopenbsd_cstpcpy_alloca_true_valid_memsafety_true_termination_i__cstpcpyErr0RequiresViolation, __U_MULTI_fopenbsd_cstpcpy_alloca_true_valid_memsafety_true_termination_i__cstpcpyErr2RequiresViolation]=== [2018-04-05 16:05:07,454 INFO L82 PathProgramCache]: Analyzing trace with hash -1420123974, now seen corresponding path program 1 times No working directory specified, using /storage/ultimate/releaseScripts/default/UAutomizer-linux/z3 Starting monitored process 10 with z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 10 with z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2018-04-05 16:05:07,470 INFO L68 tionRefinementEngine]: Using refinement strategy FixedRefinementStrategy [2018-04-05 16:05:07,507 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-04-05 16:05:07,511 INFO L270 TraceCheckSpWp]: Computing forward predicates... [2018-04-05 16:05:07,556 INFO L477 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 6 treesize of output 5 [2018-04-05 16:05:07,557 INFO L267 ElimStorePlain]: Start of recursive call 2: End of recursive call: and 1 xjuncts. [2018-04-05 16:05:07,624 INFO L477 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 6 treesize of output 5 [2018-04-05 16:05:07,625 INFO L267 ElimStorePlain]: Start of recursive call 3: End of recursive call: and 1 xjuncts. [2018-04-05 16:05:07,675 INFO L267 ElimStorePlain]: Start of recursive call 1: 1 dim-0 vars, 2 dim-1 vars, End of recursive call: and 1 xjuncts. [2018-04-05 16:05:07,675 INFO L202 ElimStorePlain]: Needed 3 recursive calls to eliminate 3 variables, input treesize:19, output treesize:14 [2018-04-05 16:05:08,029 INFO L700 Elim1Store]: detected not equals via solver [2018-04-05 16:05:08,032 INFO L477 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 1 select indices, 1 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 12 treesize of output 15 [2018-04-05 16:05:08,033 INFO L267 ElimStorePlain]: Start of recursive call 2: End of recursive call: and 1 xjuncts. [2018-04-05 16:05:08,088 INFO L700 Elim1Store]: detected not equals via solver [2018-04-05 16:05:08,097 INFO L700 Elim1Store]: detected not equals via solver [2018-04-05 16:05:08,098 INFO L477 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 2 select indices, 2 select index equivalence classes, 2 disjoint index pairs (out of 1 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 11 treesize of output 4 [2018-04-05 16:05:08,099 INFO L267 ElimStorePlain]: Start of recursive call 3: End of recursive call: and 1 xjuncts. [2018-04-05 16:05:08,119 INFO L267 ElimStorePlain]: Start of recursive call 1: 1 dim-0 vars, 2 dim-1 vars, End of recursive call: and 1 xjuncts. [2018-04-05 16:05:08,119 INFO L202 ElimStorePlain]: Needed 3 recursive calls to eliminate 3 variables, input treesize:25, output treesize:15 [2018-04-05 16:05:09,187 WARN L148 SmtUtils]: Spent 129ms on a formula simplification that was a NOOP. DAG size: 16 [2018-04-05 16:05:09,514 INFO L134 CoverageAnalysis]: Checked inductivity of 3 backedges. 0 proven. 3 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-04-05 16:05:09,515 INFO L314 TraceCheckSpWp]: Computing backward predicates... [2018-04-05 16:05:10,472 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 6 treesize of output 1 [2018-04-05 16:05:10,550 INFO L267 ElimStorePlain]: Start of recursive call 2: End of recursive call: and 1 xjuncts. [2018-04-05 16:05:10,582 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 1 new quantified variables, introduced 0 case distinctions, treesize of input 11 treesize of output 15 [2018-04-05 16:05:10,690 WARN L148 SmtUtils]: Spent 106ms on a formula simplification that was a NOOP. DAG size: 16 [2018-04-05 16:05:10,701 WARN L307 Elim1Store]: Array PQE input equivalent to true [2018-04-05 16:05:10,702 INFO L267 ElimStorePlain]: Start of recursive call 4: End of recursive call: and 1 xjuncts. [2018-04-05 16:05:10,710 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 12 treesize of output 3 [2018-04-05 16:05:10,710 INFO L267 ElimStorePlain]: Start of recursive call 5: End of recursive call: and 1 xjuncts. [2018-04-05 16:05:10,746 INFO L267 ElimStorePlain]: Start of recursive call 3: 1 dim-1 vars, End of recursive call: and 1 xjuncts. [2018-04-05 16:05:10,784 INFO L267 ElimStorePlain]: Start of recursive call 1: 2 dim-0 vars, 2 dim-1 vars, End of recursive call: and 1 xjuncts. [2018-04-05 16:05:10,785 INFO L202 ElimStorePlain]: Needed 5 recursive calls to eliminate 4 variables, input treesize:24, output treesize:7 [2018-04-05 16:05:10,973 INFO L134 CoverageAnalysis]: Checked inductivity of 3 backedges. 0 proven. 3 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-04-05 16:05:11,009 INFO L320 seRefinementStrategy]: Constructing automaton from 0 perfect and 2 imperfect interpolant sequences. [2018-04-05 16:05:11,009 INFO L335 seRefinementStrategy]: Number of different interpolants: perfect sequences [] imperfect sequences [14, 14] total 27 [2018-04-05 16:05:11,010 INFO L442 AbstractCegarLoop]: Interpolant automaton has 28 states [2018-04-05 16:05:11,010 INFO L132 InterpolantAutomaton]: Constructing interpolant automaton starting with 28 interpolants. [2018-04-05 16:05:11,010 INFO L133 InterpolantAutomaton]: CoverageRelationStatistics Valid=87, Invalid=669, Unknown=0, NotChecked=0, Total=756 [2018-04-05 16:05:11,011 INFO L87 Difference]: Start difference. First operand 63 states and 66 transitions. Second operand 28 states. [2018-04-05 16:05:13,711 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-04-05 16:05:13,711 INFO L93 Difference]: Finished difference Result 88 states and 93 transitions. [2018-04-05 16:05:13,712 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 25 states. [2018-04-05 16:05:13,712 INFO L78 Accepts]: Start accepts. Automaton has 28 states. Word has length 37 [2018-04-05 16:05:13,713 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-04-05 16:05:13,714 INFO L225 Difference]: With dead ends: 88 [2018-04-05 16:05:13,714 INFO L226 Difference]: Without dead ends: 87 [2018-04-05 16:05:13,715 INFO L567 BasicCegarLoop]: 0 DeclaredPredicates, 94 GetRequests, 47 SyntacticMatches, 0 SemanticMatches, 47 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 359 ImplicationChecksByTransitivity, 4.1s TimeCoverageRelationStatistics Valid=322, Invalid=2030, Unknown=0, NotChecked=0, Total=2352 [2018-04-05 16:05:13,716 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 87 states. [2018-04-05 16:05:13,726 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 87 to 75. [2018-04-05 16:05:13,727 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 75 states. [2018-04-05 16:05:13,728 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 75 states to 75 states and 80 transitions. [2018-04-05 16:05:13,728 INFO L78 Accepts]: Start accepts. Automaton has 75 states and 80 transitions. Word has length 37 [2018-04-05 16:05:13,728 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-04-05 16:05:13,728 INFO L459 AbstractCegarLoop]: Abstraction has 75 states and 80 transitions. [2018-04-05 16:05:13,728 INFO L460 AbstractCegarLoop]: Interpolant automaton has 28 states. [2018-04-05 16:05:13,729 INFO L276 IsEmpty]: Start isEmpty. Operand 75 states and 80 transitions. [2018-04-05 16:05:13,729 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 39 [2018-04-05 16:05:13,730 INFO L347 BasicCegarLoop]: Found error trace [2018-04-05 16:05:13,730 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] [2018-04-05 16:05:13,730 INFO L408 AbstractCegarLoop]: === Iteration 10 === [mainErr1RequiresViolation, mainErr2EnsuresViolationMEMORY_LEAK, mainErr0RequiresViolation, __U_MULTI_fopenbsd_cstpcpy_alloca_true_valid_memsafety_true_termination_i__cstpcpyErr3RequiresViolation, __U_MULTI_fopenbsd_cstpcpy_alloca_true_valid_memsafety_true_termination_i__cstpcpyErr1RequiresViolation, __U_MULTI_fopenbsd_cstpcpy_alloca_true_valid_memsafety_true_termination_i__cstpcpyErr0RequiresViolation, __U_MULTI_fopenbsd_cstpcpy_alloca_true_valid_memsafety_true_termination_i__cstpcpyErr2RequiresViolation]=== [2018-04-05 16:05:13,730 INFO L82 PathProgramCache]: Analyzing trace with hash -586351386, now seen corresponding path program 1 times No working directory specified, using /storage/ultimate/releaseScripts/default/UAutomizer-linux/z3 Starting monitored process 11 with z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 11 with z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2018-04-05 16:05:13,753 INFO L68 tionRefinementEngine]: Using refinement strategy FixedRefinementStrategy [2018-04-05 16:05:13,790 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-04-05 16:05:13,793 INFO L270 TraceCheckSpWp]: Computing forward predicates... [2018-04-05 16:05:14,001 INFO L700 Elim1Store]: detected not equals via solver [2018-04-05 16:05:14,002 INFO L477 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 2 select indices, 2 select index equivalence classes, 2 disjoint index pairs (out of 1 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 20 treesize of output 27 [2018-04-05 16:05:14,011 INFO L477 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 2 select indices, 2 select index equivalence classes, 2 disjoint index pairs (out of 1 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 23 treesize of output 15 [2018-04-05 16:05:14,012 INFO L267 ElimStorePlain]: Start of recursive call 3: End of recursive call: and 1 xjuncts. [2018-04-05 16:05:14,017 INFO L267 ElimStorePlain]: Start of recursive call 2: 1 dim-1 vars, End of recursive call: and 1 xjuncts. [2018-04-05 16:05:14,022 INFO L267 ElimStorePlain]: Start of recursive call 1: 2 dim-0 vars, 1 dim-1 vars, End of recursive call: 2 dim-0 vars, and 1 xjuncts. [2018-04-05 16:05:14,023 INFO L202 ElimStorePlain]: Needed 3 recursive calls to eliminate 3 variables, input treesize:23, output treesize:15 [2018-04-05 16:05:14,054 WARN L1033 $PredicateComparison]: unable to prove that (exists ((|main_#t~malloc7.base| Int)) (let ((.cse0 (store |c_old(#valid)| |main_#t~malloc7.base| 1))) (and (= (select |c_old(#valid)| |main_#t~malloc7.base|) 0) (= (store (store .cse0 |c_main_#t~malloc8.base| 1) |main_#t~malloc7.base| 0) |c_#valid|) (= (select .cse0 |c_main_#t~malloc8.base|) 0)))) is different from true [2018-04-05 16:05:14,077 WARN L1033 $PredicateComparison]: unable to prove that (exists ((|main_#t~malloc7.base| Int) (|main_#t~malloc8.base| Int)) (let ((.cse0 (store |c_old(#valid)| |main_#t~malloc7.base| 1))) (and (= (select |c_old(#valid)| |main_#t~malloc7.base|) 0) (= |c_#valid| (store (store (store .cse0 |main_#t~malloc8.base| 1) |main_#t~malloc7.base| 0) |main_#t~malloc8.base| 0)) (= (select .cse0 |main_#t~malloc8.base|) 0)))) is different from true [2018-04-05 16:05:14,083 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-04-05 16:05:14,084 INFO L314 TraceCheckSpWp]: Computing backward predicates... [2018-04-05 16:05:14,252 WARN L1011 $PredicateComparison]: unable to prove that (forall ((|v_main_#t~malloc8.base_13| Int)) (or (not (= 0 (select |c_#valid| |v_main_#t~malloc8.base_13|))) (= (store (store (store |c_#valid| |v_main_#t~malloc8.base_13| 1) |c_main_#t~malloc7.base| 0) |v_main_#t~malloc8.base_13| 0) |c_old(#valid)|))) is different from false [2018-04-05 16:05:14,259 WARN L1011 $PredicateComparison]: unable to prove that (forall ((|v_main_#t~malloc7.base_12| Int) (|v_main_#t~malloc8.base_13| Int)) (let ((.cse0 (store |c_#valid| |v_main_#t~malloc7.base_12| 1))) (or (= (store (store (store .cse0 |v_main_#t~malloc8.base_13| 1) |v_main_#t~malloc7.base_12| 0) |v_main_#t~malloc8.base_13| 0) |c_old(#valid)|) (not (= 0 (select |c_#valid| |v_main_#t~malloc7.base_12|))) (not (= (select .cse0 |v_main_#t~malloc8.base_13|) 0))))) is different from false [2018-04-05 16:05:14,313 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-04-05 16:05:14,348 INFO L320 seRefinementStrategy]: Constructing automaton from 2 perfect and 0 imperfect interpolant sequences. [2018-04-05 16:05:14,349 INFO L335 seRefinementStrategy]: Number of different interpolants: perfect sequences [7, 6] imperfect sequences [] total 11 [2018-04-05 16:05:14,349 INFO L442 AbstractCegarLoop]: Interpolant automaton has 12 states [2018-04-05 16:05:14,349 INFO L132 InterpolantAutomaton]: Constructing interpolant automaton starting with 12 interpolants. [2018-04-05 16:05:14,349 INFO L133 InterpolantAutomaton]: CoverageRelationStatistics Valid=23, Invalid=45, Unknown=4, NotChecked=60, Total=132 [2018-04-05 16:05:14,350 INFO L87 Difference]: Start difference. First operand 75 states and 80 transitions. Second operand 12 states. [2018-04-05 16:05:14,399 WARN L1011 $PredicateComparison]: unable to prove that (and (= |c_#valid| |c_old(#valid)|) (forall ((|v_main_#t~malloc7.base_12| Int) (|v_main_#t~malloc8.base_13| Int)) (let ((.cse0 (store |c_#valid| |v_main_#t~malloc7.base_12| 1))) (or (= (store (store (store .cse0 |v_main_#t~malloc8.base_13| 1) |v_main_#t~malloc7.base_12| 0) |v_main_#t~malloc8.base_13| 0) |c_old(#valid)|) (not (= 0 (select |c_#valid| |v_main_#t~malloc7.base_12|))) (not (= (select .cse0 |v_main_#t~malloc8.base_13|) 0)))))) is different from false [2018-04-05 16:05:15,543 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-04-05 16:05:15,543 INFO L93 Difference]: Finished difference Result 135 states and 144 transitions. [2018-04-05 16:05:15,595 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 11 states. [2018-04-05 16:05:15,595 INFO L78 Accepts]: Start accepts. Automaton has 12 states. Word has length 38 [2018-04-05 16:05:15,595 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-04-05 16:05:15,596 INFO L225 Difference]: With dead ends: 135 [2018-04-05 16:05:15,597 INFO L226 Difference]: Without dead ends: 123 [2018-04-05 16:05:15,597 INFO L567 BasicCegarLoop]: 0 DeclaredPredicates, 83 GetRequests, 65 SyntacticMatches, 2 SemanticMatches, 16 ConstructedPredicates, 5 IntricatePredicates, 0 DeprecatedPredicates, 12 ImplicationChecksByTransitivity, 0.5s TimeCoverageRelationStatistics Valid=45, Invalid=125, Unknown=6, NotChecked=130, Total=306 [2018-04-05 16:05:15,597 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 123 states. [2018-04-05 16:05:15,612 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 123 to 121. [2018-04-05 16:05:15,613 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 121 states. [2018-04-05 16:05:15,614 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 121 states to 121 states and 130 transitions. [2018-04-05 16:05:15,614 INFO L78 Accepts]: Start accepts. Automaton has 121 states and 130 transitions. Word has length 38 [2018-04-05 16:05:15,614 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-04-05 16:05:15,614 INFO L459 AbstractCegarLoop]: Abstraction has 121 states and 130 transitions. [2018-04-05 16:05:15,614 INFO L460 AbstractCegarLoop]: Interpolant automaton has 12 states. [2018-04-05 16:05:15,615 INFO L276 IsEmpty]: Start isEmpty. Operand 121 states and 130 transitions. [2018-04-05 16:05:15,616 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 40 [2018-04-05 16:05:15,616 INFO L347 BasicCegarLoop]: Found error trace [2018-04-05 16:05:15,616 INFO L355 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2018-04-05 16:05:15,616 INFO L408 AbstractCegarLoop]: === Iteration 11 === [mainErr1RequiresViolation, mainErr2EnsuresViolationMEMORY_LEAK, mainErr0RequiresViolation, __U_MULTI_fopenbsd_cstpcpy_alloca_true_valid_memsafety_true_termination_i__cstpcpyErr3RequiresViolation, __U_MULTI_fopenbsd_cstpcpy_alloca_true_valid_memsafety_true_termination_i__cstpcpyErr1RequiresViolation, __U_MULTI_fopenbsd_cstpcpy_alloca_true_valid_memsafety_true_termination_i__cstpcpyErr0RequiresViolation, __U_MULTI_fopenbsd_cstpcpy_alloca_true_valid_memsafety_true_termination_i__cstpcpyErr2RequiresViolation]=== [2018-04-05 16:05:15,616 INFO L82 PathProgramCache]: Analyzing trace with hash -2056138353, now seen corresponding path program 1 times No working directory specified, using /storage/ultimate/releaseScripts/default/UAutomizer-linux/z3 Starting monitored process 12 with z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 12 with z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2018-04-05 16:05:15,624 INFO L68 tionRefinementEngine]: Using refinement strategy FixedRefinementStrategy [2018-04-05 16:05:15,646 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-04-05 16:05:15,649 INFO L270 TraceCheckSpWp]: Computing forward predicates... [2018-04-05 16:05:15,701 INFO L700 Elim1Store]: detected not equals via solver [2018-04-05 16:05:15,702 INFO L477 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 2 select indices, 2 select index equivalence classes, 2 disjoint index pairs (out of 1 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 20 treesize of output 21 [2018-04-05 16:05:15,704 INFO L700 Elim1Store]: detected not equals via solver [2018-04-05 16:05:15,705 INFO L477 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 2 select indices, 2 select index equivalence classes, 2 disjoint index pairs (out of 1 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 17 treesize of output 21 [2018-04-05 16:05:15,705 INFO L267 ElimStorePlain]: Start of recursive call 3: End of recursive call: and 1 xjuncts. [2018-04-05 16:05:15,710 INFO L267 ElimStorePlain]: Start of recursive call 2: 1 dim-1 vars, End of recursive call: and 1 xjuncts. [2018-04-05 16:05:15,714 INFO L267 ElimStorePlain]: Start of recursive call 1: 2 dim-0 vars, 1 dim-1 vars, End of recursive call: 2 dim-0 vars, and 1 xjuncts. [2018-04-05 16:05:15,714 INFO L202 ElimStorePlain]: Needed 3 recursive calls to eliminate 3 variables, input treesize:23, output treesize:15 [2018-04-05 16:05:15,798 WARN L1033 $PredicateComparison]: unable to prove that (exists ((|main_#t~malloc7.base| Int)) (let ((.cse0 (store |c_old(#valid)| |main_#t~malloc7.base| 1))) (and (= (select |c_old(#valid)| |main_#t~malloc7.base|) 0) (= (store (store .cse0 |c_main_#t~malloc8.base| 1) |main_#t~malloc7.base| 0) |c_#valid|) (= (select .cse0 |c_main_#t~malloc8.base|) 0)))) is different from true [2018-04-05 16:05:15,803 WARN L1033 $PredicateComparison]: unable to prove that (exists ((|main_#t~malloc7.base| Int) (|main_#t~malloc8.base| Int)) (let ((.cse0 (store |c_old(#valid)| |main_#t~malloc7.base| 1))) (and (= (select |c_old(#valid)| |main_#t~malloc7.base|) 0) (= |c_#valid| (store (store (store .cse0 |main_#t~malloc8.base| 1) |main_#t~malloc7.base| 0) |main_#t~malloc8.base| 0)) (= (select .cse0 |main_#t~malloc8.base|) 0)))) is different from true [2018-04-05 16:05:15,809 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-04-05 16:05:15,809 INFO L314 TraceCheckSpWp]: Computing backward predicates... [2018-04-05 16:05:15,837 WARN L1011 $PredicateComparison]: unable to prove that (forall ((|v_main_#t~malloc8.base_15| Int)) (or (not (= 0 (select |c_#valid| |v_main_#t~malloc8.base_15|))) (= (store (store (store |c_#valid| |v_main_#t~malloc8.base_15| 1) |c_main_#t~malloc7.base| 0) |v_main_#t~malloc8.base_15| 0) |c_old(#valid)|))) is different from false [2018-04-05 16:05:15,841 WARN L1011 $PredicateComparison]: unable to prove that (forall ((|v_main_#t~malloc7.base_14| Int) (|v_main_#t~malloc8.base_15| Int)) (let ((.cse0 (store |c_#valid| |v_main_#t~malloc7.base_14| 1))) (or (= (store (store (store .cse0 |v_main_#t~malloc8.base_15| 1) |v_main_#t~malloc7.base_14| 0) |v_main_#t~malloc8.base_15| 0) |c_old(#valid)|) (not (= (select .cse0 |v_main_#t~malloc8.base_15|) 0)) (not (= 0 (select |c_#valid| |v_main_#t~malloc7.base_14|)))))) is different from false [2018-04-05 16:05:15,872 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-04-05 16:05:15,907 INFO L320 seRefinementStrategy]: Constructing automaton from 2 perfect and 0 imperfect interpolant sequences. [2018-04-05 16:05:15,908 INFO L335 seRefinementStrategy]: Number of different interpolants: perfect sequences [7, 6] imperfect sequences [] total 11 [2018-04-05 16:05:15,908 INFO L442 AbstractCegarLoop]: Interpolant automaton has 12 states [2018-04-05 16:05:15,908 INFO L132 InterpolantAutomaton]: Constructing interpolant automaton starting with 12 interpolants. [2018-04-05 16:05:15,909 INFO L133 InterpolantAutomaton]: CoverageRelationStatistics Valid=23, Invalid=45, Unknown=4, NotChecked=60, Total=132 [2018-04-05 16:05:15,909 INFO L87 Difference]: Start difference. First operand 121 states and 130 transitions. Second operand 12 states. [2018-04-05 16:05:15,923 WARN L1011 $PredicateComparison]: unable to prove that (and (forall ((|v_main_#t~malloc7.base_14| Int) (|v_main_#t~malloc8.base_15| Int)) (let ((.cse0 (store |c_#valid| |v_main_#t~malloc7.base_14| 1))) (or (= (store (store (store .cse0 |v_main_#t~malloc8.base_15| 1) |v_main_#t~malloc7.base_14| 0) |v_main_#t~malloc8.base_15| 0) |c_old(#valid)|) (not (= (select .cse0 |v_main_#t~malloc8.base_15|) 0)) (not (= 0 (select |c_#valid| |v_main_#t~malloc7.base_14|)))))) (= |c_#valid| |c_old(#valid)|)) is different from false [2018-04-05 16:05:16,214 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-04-05 16:05:16,214 INFO L93 Difference]: Finished difference Result 181 states and 193 transitions. [2018-04-05 16:05:16,214 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 11 states. [2018-04-05 16:05:16,214 INFO L78 Accepts]: Start accepts. Automaton has 12 states. Word has length 39 [2018-04-05 16:05:16,215 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-04-05 16:05:16,217 INFO L225 Difference]: With dead ends: 181 [2018-04-05 16:05:16,217 INFO L226 Difference]: Without dead ends: 169 [2018-04-05 16:05:16,218 INFO L567 BasicCegarLoop]: 0 DeclaredPredicates, 85 GetRequests, 67 SyntacticMatches, 2 SemanticMatches, 16 ConstructedPredicates, 5 IntricatePredicates, 0 DeprecatedPredicates, 12 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=45, Invalid=125, Unknown=6, NotChecked=130, Total=306 [2018-04-05 16:05:16,218 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 169 states. [2018-04-05 16:05:16,227 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 169 to 122. [2018-04-05 16:05:16,228 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 122 states. [2018-04-05 16:05:16,228 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 122 states to 122 states and 131 transitions. [2018-04-05 16:05:16,228 INFO L78 Accepts]: Start accepts. Automaton has 122 states and 131 transitions. Word has length 39 [2018-04-05 16:05:16,229 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-04-05 16:05:16,229 INFO L459 AbstractCegarLoop]: Abstraction has 122 states and 131 transitions. [2018-04-05 16:05:16,229 INFO L460 AbstractCegarLoop]: Interpolant automaton has 12 states. [2018-04-05 16:05:16,229 INFO L276 IsEmpty]: Start isEmpty. Operand 122 states and 131 transitions. [2018-04-05 16:05:16,229 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 40 [2018-04-05 16:05:16,229 INFO L347 BasicCegarLoop]: Found error trace [2018-04-05 16:05:16,229 INFO L355 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2018-04-05 16:05:16,230 INFO L408 AbstractCegarLoop]: === Iteration 12 === [mainErr1RequiresViolation, mainErr2EnsuresViolationMEMORY_LEAK, mainErr0RequiresViolation, __U_MULTI_fopenbsd_cstpcpy_alloca_true_valid_memsafety_true_termination_i__cstpcpyErr3RequiresViolation, __U_MULTI_fopenbsd_cstpcpy_alloca_true_valid_memsafety_true_termination_i__cstpcpyErr1RequiresViolation, __U_MULTI_fopenbsd_cstpcpy_alloca_true_valid_memsafety_true_termination_i__cstpcpyErr0RequiresViolation, __U_MULTI_fopenbsd_cstpcpy_alloca_true_valid_memsafety_true_termination_i__cstpcpyErr2RequiresViolation]=== [2018-04-05 16:05:16,230 INFO L82 PathProgramCache]: Analyzing trace with hash -691583340, now seen corresponding path program 1 times No working directory specified, using /storage/ultimate/releaseScripts/default/UAutomizer-linux/z3 Starting monitored process 13 with z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 13 with z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2018-04-05 16:05:16,235 INFO L68 tionRefinementEngine]: Using refinement strategy FixedRefinementStrategy [2018-04-05 16:05:16,251 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-04-05 16:05:16,253 INFO L270 TraceCheckSpWp]: Computing forward predicates... [2018-04-05 16:05:16,284 INFO L700 Elim1Store]: detected not equals via solver [2018-04-05 16:05:16,284 INFO L477 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 2 select indices, 2 select index equivalence classes, 2 disjoint index pairs (out of 1 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 20 treesize of output 27 [2018-04-05 16:05:16,287 INFO L477 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 2 select indices, 2 select index equivalence classes, 2 disjoint index pairs (out of 1 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 23 treesize of output 15 [2018-04-05 16:05:16,287 INFO L267 ElimStorePlain]: Start of recursive call 3: End of recursive call: and 1 xjuncts. [2018-04-05 16:05:16,292 INFO L267 ElimStorePlain]: Start of recursive call 2: 1 dim-1 vars, End of recursive call: and 1 xjuncts. [2018-04-05 16:05:16,296 INFO L267 ElimStorePlain]: Start of recursive call 1: 2 dim-0 vars, 1 dim-1 vars, End of recursive call: 2 dim-0 vars, and 1 xjuncts. [2018-04-05 16:05:16,296 INFO L202 ElimStorePlain]: Needed 3 recursive calls to eliminate 3 variables, input treesize:23, output treesize:15 [2018-04-05 16:05:16,321 WARN L1033 $PredicateComparison]: unable to prove that (exists ((|main_#t~malloc7.base| Int)) (let ((.cse0 (store |c_old(#valid)| |main_#t~malloc7.base| 1))) (and (= (select |c_old(#valid)| |main_#t~malloc7.base|) 0) (= (store (store .cse0 |c_main_#t~malloc8.base| 1) |main_#t~malloc7.base| 0) |c_#valid|) (= (select .cse0 |c_main_#t~malloc8.base|) 0)))) is different from true [2018-04-05 16:05:16,327 WARN L1033 $PredicateComparison]: unable to prove that (exists ((|main_#t~malloc7.base| Int) (|main_#t~malloc8.base| Int)) (let ((.cse0 (store |c_old(#valid)| |main_#t~malloc7.base| 1))) (and (= (select |c_old(#valid)| |main_#t~malloc7.base|) 0) (= |c_#valid| (store (store (store .cse0 |main_#t~malloc8.base| 1) |main_#t~malloc7.base| 0) |main_#t~malloc8.base| 0)) (= (select .cse0 |main_#t~malloc8.base|) 0)))) is different from true [2018-04-05 16:05:16,331 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-04-05 16:05:16,332 INFO L314 TraceCheckSpWp]: Computing backward predicates... [2018-04-05 16:05:16,351 WARN L1011 $PredicateComparison]: unable to prove that (forall ((|v_main_#t~malloc8.base_17| Int)) (or (not (= 0 (select |c_#valid| |v_main_#t~malloc8.base_17|))) (= |c_old(#valid)| (store (store (store |c_#valid| |v_main_#t~malloc8.base_17| 1) |c_main_#t~malloc7.base| 0) |v_main_#t~malloc8.base_17| 0)))) is different from false [2018-04-05 16:05:16,355 WARN L1011 $PredicateComparison]: unable to prove that (forall ((|v_main_#t~malloc7.base_16| Int) (|v_main_#t~malloc8.base_17| Int)) (let ((.cse0 (store |c_#valid| |v_main_#t~malloc7.base_16| 1))) (or (not (= (select .cse0 |v_main_#t~malloc8.base_17|) 0)) (= |c_old(#valid)| (store (store (store .cse0 |v_main_#t~malloc8.base_17| 1) |v_main_#t~malloc7.base_16| 0) |v_main_#t~malloc8.base_17| 0)) (not (= 0 (select |c_#valid| |v_main_#t~malloc7.base_16|)))))) is different from false [2018-04-05 16:05:16,367 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-04-05 16:05:16,390 INFO L320 seRefinementStrategy]: Constructing automaton from 2 perfect and 0 imperfect interpolant sequences. [2018-04-05 16:05:16,390 INFO L335 seRefinementStrategy]: Number of different interpolants: perfect sequences [7, 6] imperfect sequences [] total 11 [2018-04-05 16:05:16,390 INFO L442 AbstractCegarLoop]: Interpolant automaton has 12 states [2018-04-05 16:05:16,390 INFO L132 InterpolantAutomaton]: Constructing interpolant automaton starting with 12 interpolants. [2018-04-05 16:05:16,391 INFO L133 InterpolantAutomaton]: CoverageRelationStatistics Valid=23, Invalid=45, Unknown=4, NotChecked=60, Total=132 [2018-04-05 16:05:16,391 INFO L87 Difference]: Start difference. First operand 122 states and 131 transitions. Second operand 12 states. [2018-04-05 16:05:16,400 WARN L1011 $PredicateComparison]: unable to prove that (and (forall ((|v_main_#t~malloc7.base_16| Int) (|v_main_#t~malloc8.base_17| Int)) (let ((.cse0 (store |c_#valid| |v_main_#t~malloc7.base_16| 1))) (or (not (= (select .cse0 |v_main_#t~malloc8.base_17|) 0)) (= |c_old(#valid)| (store (store (store .cse0 |v_main_#t~malloc8.base_17| 1) |v_main_#t~malloc7.base_16| 0) |v_main_#t~malloc8.base_17| 0)) (not (= 0 (select |c_#valid| |v_main_#t~malloc7.base_16|)))))) (= |c_#valid| |c_old(#valid)|)) is different from false [2018-04-05 16:05:16,633 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-04-05 16:05:16,634 INFO L93 Difference]: Finished difference Result 181 states and 193 transitions. [2018-04-05 16:05:16,634 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 11 states. [2018-04-05 16:05:16,634 INFO L78 Accepts]: Start accepts. Automaton has 12 states. Word has length 39 [2018-04-05 16:05:16,634 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-04-05 16:05:16,635 INFO L225 Difference]: With dead ends: 181 [2018-04-05 16:05:16,635 INFO L226 Difference]: Without dead ends: 169 [2018-04-05 16:05:16,636 INFO L567 BasicCegarLoop]: 0 DeclaredPredicates, 85 GetRequests, 67 SyntacticMatches, 2 SemanticMatches, 16 ConstructedPredicates, 5 IntricatePredicates, 0 DeprecatedPredicates, 12 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=45, Invalid=125, Unknown=6, NotChecked=130, Total=306 [2018-04-05 16:05:16,636 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 169 states. [2018-04-05 16:05:16,649 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 169 to 122. [2018-04-05 16:05:16,649 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 122 states. [2018-04-05 16:05:16,650 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 122 states to 122 states and 131 transitions. [2018-04-05 16:05:16,650 INFO L78 Accepts]: Start accepts. Automaton has 122 states and 131 transitions. Word has length 39 [2018-04-05 16:05:16,650 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-04-05 16:05:16,650 INFO L459 AbstractCegarLoop]: Abstraction has 122 states and 131 transitions. [2018-04-05 16:05:16,650 INFO L460 AbstractCegarLoop]: Interpolant automaton has 12 states. [2018-04-05 16:05:16,650 INFO L276 IsEmpty]: Start isEmpty. Operand 122 states and 131 transitions. [2018-04-05 16:05:16,651 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 41 [2018-04-05 16:05:16,651 INFO L347 BasicCegarLoop]: Found error trace [2018-04-05 16:05:16,651 INFO L355 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2018-04-05 16:05:16,651 INFO L408 AbstractCegarLoop]: === Iteration 13 === [mainErr1RequiresViolation, mainErr2EnsuresViolationMEMORY_LEAK, mainErr0RequiresViolation, __U_MULTI_fopenbsd_cstpcpy_alloca_true_valid_memsafety_true_termination_i__cstpcpyErr3RequiresViolation, __U_MULTI_fopenbsd_cstpcpy_alloca_true_valid_memsafety_true_termination_i__cstpcpyErr1RequiresViolation, __U_MULTI_fopenbsd_cstpcpy_alloca_true_valid_memsafety_true_termination_i__cstpcpyErr0RequiresViolation, __U_MULTI_fopenbsd_cstpcpy_alloca_true_valid_memsafety_true_termination_i__cstpcpyErr2RequiresViolation]=== [2018-04-05 16:05:16,652 INFO L82 PathProgramCache]: Analyzing trace with hash -1023361631, now seen corresponding path program 1 times No working directory specified, using /storage/ultimate/releaseScripts/default/UAutomizer-linux/z3 Starting monitored process 14 with z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 14 with z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2018-04-05 16:05:16,661 INFO L68 tionRefinementEngine]: Using refinement strategy FixedRefinementStrategy [2018-04-05 16:05:16,677 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-04-05 16:05:16,680 INFO L270 TraceCheckSpWp]: Computing forward predicates... [2018-04-05 16:05:16,704 INFO L700 Elim1Store]: detected not equals via solver [2018-04-05 16:05:16,705 INFO L477 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 2 select indices, 2 select index equivalence classes, 2 disjoint index pairs (out of 1 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 20 treesize of output 21 [2018-04-05 16:05:16,708 INFO L700 Elim1Store]: detected not equals via solver [2018-04-05 16:05:16,709 INFO L477 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 2 select indices, 2 select index equivalence classes, 2 disjoint index pairs (out of 1 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 17 treesize of output 21 [2018-04-05 16:05:16,710 INFO L267 ElimStorePlain]: Start of recursive call 3: End of recursive call: and 1 xjuncts. [2018-04-05 16:05:16,716 INFO L267 ElimStorePlain]: Start of recursive call 2: 1 dim-1 vars, End of recursive call: and 1 xjuncts. [2018-04-05 16:05:16,720 INFO L267 ElimStorePlain]: Start of recursive call 1: 2 dim-0 vars, 1 dim-1 vars, End of recursive call: 2 dim-0 vars, and 1 xjuncts. [2018-04-05 16:05:16,721 INFO L202 ElimStorePlain]: Needed 3 recursive calls to eliminate 3 variables, input treesize:23, output treesize:15 [2018-04-05 16:05:16,741 WARN L1033 $PredicateComparison]: unable to prove that (exists ((|main_#t~malloc7.base| Int)) (let ((.cse0 (store |c_old(#valid)| |main_#t~malloc7.base| 1))) (and (= (select |c_old(#valid)| |main_#t~malloc7.base|) 0) (= (store (store .cse0 |c_main_#t~malloc8.base| 1) |main_#t~malloc7.base| 0) |c_#valid|) (= (select .cse0 |c_main_#t~malloc8.base|) 0)))) is different from true [2018-04-05 16:05:16,748 WARN L1033 $PredicateComparison]: unable to prove that (exists ((|main_#t~malloc7.base| Int) (|main_#t~malloc8.base| Int)) (let ((.cse0 (store |c_old(#valid)| |main_#t~malloc7.base| 1))) (and (= (select |c_old(#valid)| |main_#t~malloc7.base|) 0) (= |c_#valid| (store (store (store .cse0 |main_#t~malloc8.base| 1) |main_#t~malloc7.base| 0) |main_#t~malloc8.base| 0)) (= (select .cse0 |main_#t~malloc8.base|) 0)))) is different from true [2018-04-05 16:05:16,752 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-04-05 16:05:16,752 INFO L314 TraceCheckSpWp]: Computing backward predicates... [2018-04-05 16:05:16,772 WARN L1011 $PredicateComparison]: unable to prove that (forall ((|v_main_#t~malloc8.base_19| Int)) (or (= (store (store (store |c_#valid| |v_main_#t~malloc8.base_19| 1) |c_main_#t~malloc7.base| 0) |v_main_#t~malloc8.base_19| 0) |c_old(#valid)|) (not (= 0 (select |c_#valid| |v_main_#t~malloc8.base_19|))))) is different from false [2018-04-05 16:05:16,776 WARN L1011 $PredicateComparison]: unable to prove that (forall ((|v_main_#t~malloc7.base_18| Int) (|v_main_#t~malloc8.base_19| Int)) (let ((.cse0 (store |c_#valid| |v_main_#t~malloc7.base_18| 1))) (or (not (= 0 (select |c_#valid| |v_main_#t~malloc7.base_18|))) (= |c_old(#valid)| (store (store (store .cse0 |v_main_#t~malloc8.base_19| 1) |v_main_#t~malloc7.base_18| 0) |v_main_#t~malloc8.base_19| 0)) (not (= (select .cse0 |v_main_#t~malloc8.base_19|) 0))))) is different from false [2018-04-05 16:05:16,795 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-04-05 16:05:16,826 INFO L320 seRefinementStrategy]: Constructing automaton from 2 perfect and 0 imperfect interpolant sequences. [2018-04-05 16:05:16,826 INFO L335 seRefinementStrategy]: Number of different interpolants: perfect sequences [7, 6] imperfect sequences [] total 11 [2018-04-05 16:05:16,826 INFO L442 AbstractCegarLoop]: Interpolant automaton has 12 states [2018-04-05 16:05:16,826 INFO L132 InterpolantAutomaton]: Constructing interpolant automaton starting with 12 interpolants. [2018-04-05 16:05:16,827 INFO L133 InterpolantAutomaton]: CoverageRelationStatistics Valid=23, Invalid=45, Unknown=4, NotChecked=60, Total=132 [2018-04-05 16:05:16,827 INFO L87 Difference]: Start difference. First operand 122 states and 131 transitions. Second operand 12 states. [2018-04-05 16:05:16,842 WARN L1011 $PredicateComparison]: unable to prove that (and (= |c_#valid| |c_old(#valid)|) (forall ((|v_main_#t~malloc7.base_18| Int) (|v_main_#t~malloc8.base_19| Int)) (let ((.cse0 (store |c_#valid| |v_main_#t~malloc7.base_18| 1))) (or (not (= 0 (select |c_#valid| |v_main_#t~malloc7.base_18|))) (= |c_old(#valid)| (store (store (store .cse0 |v_main_#t~malloc8.base_19| 1) |v_main_#t~malloc7.base_18| 0) |v_main_#t~malloc8.base_19| 0)) (not (= (select .cse0 |v_main_#t~malloc8.base_19|) 0)))))) is different from false [2018-04-05 16:05:17,069 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-04-05 16:05:17,069 INFO L93 Difference]: Finished difference Result 124 states and 131 transitions. [2018-04-05 16:05:17,069 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 11 states. [2018-04-05 16:05:17,069 INFO L78 Accepts]: Start accepts. Automaton has 12 states. Word has length 40 [2018-04-05 16:05:17,070 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-04-05 16:05:17,070 INFO L225 Difference]: With dead ends: 124 [2018-04-05 16:05:17,070 INFO L226 Difference]: Without dead ends: 112 [2018-04-05 16:05:17,071 INFO L567 BasicCegarLoop]: 0 DeclaredPredicates, 87 GetRequests, 69 SyntacticMatches, 2 SemanticMatches, 16 ConstructedPredicates, 5 IntricatePredicates, 0 DeprecatedPredicates, 12 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=45, Invalid=125, Unknown=6, NotChecked=130, Total=306 [2018-04-05 16:05:17,071 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 112 states. [2018-04-05 16:05:17,077 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 112 to 63. [2018-04-05 16:05:17,077 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 63 states. [2018-04-05 16:05:17,078 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 63 states to 63 states and 66 transitions. [2018-04-05 16:05:17,078 INFO L78 Accepts]: Start accepts. Automaton has 63 states and 66 transitions. Word has length 40 [2018-04-05 16:05:17,078 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-04-05 16:05:17,078 INFO L459 AbstractCegarLoop]: Abstraction has 63 states and 66 transitions. [2018-04-05 16:05:17,078 INFO L460 AbstractCegarLoop]: Interpolant automaton has 12 states. [2018-04-05 16:05:17,078 INFO L276 IsEmpty]: Start isEmpty. Operand 63 states and 66 transitions. [2018-04-05 16:05:17,079 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 48 [2018-04-05 16:05:17,079 INFO L347 BasicCegarLoop]: Found error trace [2018-04-05 16:05:17,079 INFO L355 BasicCegarLoop]: trace histogram [3, 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] [2018-04-05 16:05:17,079 INFO L408 AbstractCegarLoop]: === Iteration 14 === [mainErr1RequiresViolation, mainErr2EnsuresViolationMEMORY_LEAK, mainErr0RequiresViolation, __U_MULTI_fopenbsd_cstpcpy_alloca_true_valid_memsafety_true_termination_i__cstpcpyErr3RequiresViolation, __U_MULTI_fopenbsd_cstpcpy_alloca_true_valid_memsafety_true_termination_i__cstpcpyErr1RequiresViolation, __U_MULTI_fopenbsd_cstpcpy_alloca_true_valid_memsafety_true_termination_i__cstpcpyErr0RequiresViolation, __U_MULTI_fopenbsd_cstpcpy_alloca_true_valid_memsafety_true_termination_i__cstpcpyErr2RequiresViolation]=== [2018-04-05 16:05:17,079 INFO L82 PathProgramCache]: Analyzing trace with hash -1806004801, now seen corresponding path program 2 times No working directory specified, using /storage/ultimate/releaseScripts/default/UAutomizer-linux/z3 Starting monitored process 15 with z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 15 with z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2018-04-05 16:05:17,089 INFO L68 tionRefinementEngine]: Using refinement strategy FixedRefinementStrategy [2018-04-05 16:05:17,112 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-04-05 16:05:17,116 INFO L270 TraceCheckSpWp]: Computing forward predicates... [2018-04-05 16:05:17,138 INFO L477 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 6 treesize of output 5 [2018-04-05 16:05:17,139 INFO L267 ElimStorePlain]: Start of recursive call 2: End of recursive call: and 1 xjuncts. [2018-04-05 16:05:17,163 INFO L267 ElimStorePlain]: Start of recursive call 1: 1 dim-1 vars, End of recursive call: and 1 xjuncts. [2018-04-05 16:05:17,164 INFO L202 ElimStorePlain]: Needed 2 recursive calls to eliminate 1 variables, input treesize:6, output treesize:5 [2018-04-05 16:05:17,264 INFO L700 Elim1Store]: detected not equals via solver [2018-04-05 16:05:17,272 INFO L700 Elim1Store]: detected not equals via solver [2018-04-05 16:05:17,272 INFO L477 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 2 select indices, 2 select index equivalence classes, 2 disjoint index pairs (out of 1 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 11 treesize of output 4 [2018-04-05 16:05:17,273 INFO L267 ElimStorePlain]: Start of recursive call 2: End of recursive call: and 1 xjuncts. [2018-04-05 16:05:17,279 INFO L477 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 0 select indices, 0 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 6 treesize of output 5 [2018-04-05 16:05:17,279 INFO L267 ElimStorePlain]: Start of recursive call 3: End of recursive call: and 1 xjuncts. [2018-04-05 16:05:17,292 INFO L267 ElimStorePlain]: Start of recursive call 1: 2 dim-1 vars, End of recursive call: and 1 xjuncts. [2018-04-05 16:05:17,292 INFO L202 ElimStorePlain]: Needed 3 recursive calls to eliminate 2 variables, input treesize:20, output treesize:13 [2018-04-05 16:05:17,341 INFO L477 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 15 treesize of output 12 [2018-04-05 16:05:17,344 INFO L477 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 12 treesize of output 11 [2018-04-05 16:05:17,344 INFO L267 ElimStorePlain]: Start of recursive call 3: End of recursive call: and 1 xjuncts. [2018-04-05 16:05:17,346 INFO L267 ElimStorePlain]: Start of recursive call 2: 1 dim-1 vars, End of recursive call: and 1 xjuncts. [2018-04-05 16:05:17,349 INFO L267 ElimStorePlain]: Start of recursive call 1: 1 dim-2 vars, End of recursive call: and 1 xjuncts. [2018-04-05 16:05:17,351 INFO L202 ElimStorePlain]: Needed 3 recursive calls to eliminate 1 variables, input treesize:20, output treesize:16 [2018-04-05 16:05:17,438 INFO L477 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 2 select indices, 2 select index equivalence classes, 1 disjoint index pairs (out of 1 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 23 treesize of output 24 [2018-04-05 16:05:17,447 INFO L477 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 8 treesize of output 7 [2018-04-05 16:05:17,448 INFO L267 ElimStorePlain]: Start of recursive call 3: End of recursive call: and 1 xjuncts. [2018-04-05 16:05:17,481 INFO L267 ElimStorePlain]: Start of recursive call 2: 1 dim-1 vars, End of recursive call: and 1 xjuncts. [2018-04-05 16:05:17,488 INFO L267 ElimStorePlain]: Start of recursive call 1: 3 dim-0 vars, 1 dim-2 vars, End of recursive call: and 1 xjuncts. [2018-04-05 16:05:17,489 INFO L202 ElimStorePlain]: Needed 3 recursive calls to eliminate 4 variables, input treesize:30, output treesize:15 [2018-04-05 16:05:17,528 INFO L477 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 0 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 19 treesize of output 15 [2018-04-05 16:05:17,538 INFO L477 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 2 select indices, 2 select index equivalence classes, 0 disjoint index pairs (out of 1 index pairs), introduced 0 new quantified variables, introduced 1 case distinctions, treesize of input 15 treesize of output 12 [2018-04-05 16:05:17,538 INFO L267 ElimStorePlain]: Start of recursive call 3: End of recursive call: and 2 xjuncts. [2018-04-05 16:05:17,545 INFO L267 ElimStorePlain]: Start of recursive call 2: 1 dim-1 vars, End of recursive call: and 2 xjuncts. [2018-04-05 16:05:17,552 INFO L267 ElimStorePlain]: Start of recursive call 1: 1 dim-2 vars, End of recursive call: and 2 xjuncts. [2018-04-05 16:05:17,553 INFO L202 ElimStorePlain]: Needed 3 recursive calls to eliminate 1 variables, input treesize:29, output treesize:34 [2018-04-05 16:05:18,005 INFO L134 CoverageAnalysis]: Checked inductivity of 15 backedges. 0 proven. 15 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-04-05 16:05:18,006 INFO L314 TraceCheckSpWp]: Computing backward predicates... [2018-04-05 16:05:18,500 INFO L477 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 2 new quantified variables, introduced 0 case distinctions, treesize of input 37 treesize of output 28 [2018-04-05 16:05:18,515 INFO L477 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 12 treesize of output 11 [2018-04-05 16:05:18,515 INFO L267 ElimStorePlain]: Start of recursive call 3: End of recursive call: and 1 xjuncts. [2018-04-05 16:05:18,535 INFO L477 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 0 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 20 treesize of output 18 [2018-04-05 16:05:18,538 INFO L477 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 9 treesize of output 1 [2018-04-05 16:05:18,538 INFO L267 ElimStorePlain]: Start of recursive call 5: End of recursive call: and 1 xjuncts. [2018-04-05 16:05:18,541 INFO L267 ElimStorePlain]: Start of recursive call 4: 1 dim-1 vars, End of recursive call: and 1 xjuncts. [2018-04-05 16:05:18,543 INFO L477 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 0 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 19 treesize of output 15 [2018-04-05 16:05:18,547 INFO L477 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 2 select indices, 2 select index equivalence classes, 2 disjoint index pairs (out of 1 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 15 treesize of output 10 [2018-04-05 16:05:18,547 INFO L267 ElimStorePlain]: Start of recursive call 7: End of recursive call: and 1 xjuncts. [2018-04-05 16:05:18,549 INFO L267 ElimStorePlain]: Start of recursive call 6: 1 dim-1 vars, End of recursive call: and 1 xjuncts. [2018-04-05 16:05:18,560 INFO L267 ElimStorePlain]: Start of recursive call 2: 1 dim-1 vars, 1 dim-2 vars, End of recursive call: and 4 xjuncts. [2018-04-05 16:05:18,583 INFO L267 ElimStorePlain]: Start of recursive call 1: 3 dim-0 vars, 1 dim-2 vars, End of recursive call: and 4 xjuncts. [2018-04-05 16:05:18,583 INFO L202 ElimStorePlain]: Needed 7 recursive calls to eliminate 4 variables, input treesize:55, output treesize:84 [2018-04-05 16:05:18,919 INFO L134 CoverageAnalysis]: Checked inductivity of 15 backedges. 0 proven. 15 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-04-05 16:05:18,949 INFO L320 seRefinementStrategy]: Constructing automaton from 0 perfect and 2 imperfect interpolant sequences. [2018-04-05 16:05:18,950 INFO L335 seRefinementStrategy]: Number of different interpolants: perfect sequences [] imperfect sequences [15, 15] total 29 [2018-04-05 16:05:18,950 INFO L442 AbstractCegarLoop]: Interpolant automaton has 30 states [2018-04-05 16:05:18,950 INFO L132 InterpolantAutomaton]: Constructing interpolant automaton starting with 30 interpolants. [2018-04-05 16:05:18,950 INFO L133 InterpolantAutomaton]: CoverageRelationStatistics Valid=87, Invalid=783, Unknown=0, NotChecked=0, Total=870 [2018-04-05 16:05:18,950 INFO L87 Difference]: Start difference. First operand 63 states and 66 transitions. Second operand 30 states. [2018-04-05 16:05:19,669 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-04-05 16:05:19,669 INFO L93 Difference]: Finished difference Result 63 states and 66 transitions. [2018-04-05 16:05:19,669 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 18 states. [2018-04-05 16:05:19,669 INFO L78 Accepts]: Start accepts. Automaton has 30 states. Word has length 47 [2018-04-05 16:05:19,670 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-04-05 16:05:19,670 INFO L225 Difference]: With dead ends: 63 [2018-04-05 16:05:19,670 INFO L226 Difference]: Without dead ends: 62 [2018-04-05 16:05:19,671 INFO L567 BasicCegarLoop]: 0 DeclaredPredicates, 107 GetRequests, 65 SyntacticMatches, 0 SemanticMatches, 42 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 242 ImplicationChecksByTransitivity, 1.9s TimeCoverageRelationStatistics Valid=315, Invalid=1577, Unknown=0, NotChecked=0, Total=1892 [2018-04-05 16:05:19,671 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 62 states. [2018-04-05 16:05:19,676 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 62 to 62. [2018-04-05 16:05:19,677 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 62 states. [2018-04-05 16:05:19,677 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 62 states to 62 states and 64 transitions. [2018-04-05 16:05:19,677 INFO L78 Accepts]: Start accepts. Automaton has 62 states and 64 transitions. Word has length 47 [2018-04-05 16:05:19,678 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-04-05 16:05:19,678 INFO L459 AbstractCegarLoop]: Abstraction has 62 states and 64 transitions. [2018-04-05 16:05:19,678 INFO L460 AbstractCegarLoop]: Interpolant automaton has 30 states. [2018-04-05 16:05:19,678 INFO L276 IsEmpty]: Start isEmpty. Operand 62 states and 64 transitions. [2018-04-05 16:05:19,679 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 60 [2018-04-05 16:05:19,679 INFO L347 BasicCegarLoop]: Found error trace [2018-04-05 16:05:19,679 INFO L355 BasicCegarLoop]: trace histogram [4, 4, 3, 3, 3, 3, 3, 3, 3, 3, 3, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2018-04-05 16:05:19,679 INFO L408 AbstractCegarLoop]: === Iteration 15 === [mainErr1RequiresViolation, mainErr2EnsuresViolationMEMORY_LEAK, mainErr0RequiresViolation, __U_MULTI_fopenbsd_cstpcpy_alloca_true_valid_memsafety_true_termination_i__cstpcpyErr3RequiresViolation, __U_MULTI_fopenbsd_cstpcpy_alloca_true_valid_memsafety_true_termination_i__cstpcpyErr1RequiresViolation, __U_MULTI_fopenbsd_cstpcpy_alloca_true_valid_memsafety_true_termination_i__cstpcpyErr0RequiresViolation, __U_MULTI_fopenbsd_cstpcpy_alloca_true_valid_memsafety_true_termination_i__cstpcpyErr2RequiresViolation]=== [2018-04-05 16:05:19,679 INFO L82 PathProgramCache]: Analyzing trace with hash 1379347898, 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 [2018-04-05 16:05:19,687 INFO L68 tionRefinementEngine]: Using refinement strategy FixedRefinementStrategy [2018-04-05 16:05:19,708 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-04-05 16:05:19,711 INFO L270 TraceCheckSpWp]: Computing forward predicates... [2018-04-05 16:05:19,717 INFO L477 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 6 treesize of output 5 [2018-04-05 16:05:19,717 INFO L267 ElimStorePlain]: Start of recursive call 2: End of recursive call: and 1 xjuncts. [2018-04-05 16:05:19,723 INFO L477 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 6 treesize of output 5 [2018-04-05 16:05:19,723 INFO L267 ElimStorePlain]: Start of recursive call 3: End of recursive call: and 1 xjuncts. [2018-04-05 16:05:19,728 INFO L267 ElimStorePlain]: Start of recursive call 1: 1 dim-0 vars, 2 dim-1 vars, End of recursive call: and 1 xjuncts. [2018-04-05 16:05:19,728 INFO L202 ElimStorePlain]: Needed 3 recursive calls to eliminate 3 variables, input treesize:19, output treesize:14 [2018-04-05 16:05:19,745 INFO L700 Elim1Store]: detected not equals via solver [2018-04-05 16:05:19,747 INFO L477 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 1 select indices, 1 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 12 treesize of output 15 [2018-04-05 16:05:19,747 INFO L267 ElimStorePlain]: Start of recursive call 2: End of recursive call: and 1 xjuncts. [2018-04-05 16:05:19,758 INFO L700 Elim1Store]: detected not equals via solver [2018-04-05 16:05:19,759 INFO L700 Elim1Store]: detected not equals via solver [2018-04-05 16:05:19,759 INFO L477 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 2 select indices, 2 select index equivalence classes, 2 disjoint index pairs (out of 1 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 11 treesize of output 4 [2018-04-05 16:05:19,760 INFO L267 ElimStorePlain]: Start of recursive call 3: End of recursive call: and 1 xjuncts. [2018-04-05 16:05:19,765 INFO L267 ElimStorePlain]: Start of recursive call 1: 1 dim-0 vars, 2 dim-1 vars, End of recursive call: and 1 xjuncts. [2018-04-05 16:05:19,766 INFO L202 ElimStorePlain]: Needed 3 recursive calls to eliminate 3 variables, input treesize:25, output treesize:15 [2018-04-05 16:05:20,100 INFO L134 CoverageAnalysis]: Checked inductivity of 42 backedges. 0 proven. 42 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-04-05 16:05:20,100 INFO L314 TraceCheckSpWp]: Computing backward predicates... [2018-04-05 16:05:20,707 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 6 treesize of output 1 [2018-04-05 16:05:20,707 INFO L267 ElimStorePlain]: Start of recursive call 2: End of recursive call: and 1 xjuncts. [2018-04-05 16:05:20,740 INFO L477 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 11 treesize of output 15 [2018-04-05 16:05:20,749 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 12 treesize of output 3 [2018-04-05 16:05:20,749 INFO L267 ElimStorePlain]: Start of recursive call 4: End of recursive call: and 1 xjuncts. [2018-04-05 16:05:20,750 WARN L307 Elim1Store]: Array PQE input equivalent to true [2018-04-05 16:05:20,750 INFO L267 ElimStorePlain]: Start of recursive call 5: End of recursive call: and 1 xjuncts. [2018-04-05 16:05:20,754 INFO L267 ElimStorePlain]: Start of recursive call 3: 1 dim-1 vars, End of recursive call: and 1 xjuncts. [2018-04-05 16:05:20,757 INFO L267 ElimStorePlain]: Start of recursive call 1: 2 dim-0 vars, 2 dim-1 vars, End of recursive call: and 1 xjuncts. [2018-04-05 16:05:20,757 INFO L202 ElimStorePlain]: Needed 5 recursive calls to eliminate 4 variables, input treesize:24, output treesize:7 [2018-04-05 16:05:20,795 INFO L134 CoverageAnalysis]: Checked inductivity of 42 backedges. 0 proven. 42 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-04-05 16:05:20,816 INFO L320 seRefinementStrategy]: Constructing automaton from 0 perfect and 2 imperfect interpolant sequences. [2018-04-05 16:05:20,816 INFO L335 seRefinementStrategy]: Number of different interpolants: perfect sequences [] imperfect sequences [18, 18] total 35 [2018-04-05 16:05:20,817 INFO L442 AbstractCegarLoop]: Interpolant automaton has 36 states [2018-04-05 16:05:20,817 INFO L132 InterpolantAutomaton]: Constructing interpolant automaton starting with 36 interpolants. [2018-04-05 16:05:20,817 INFO L133 InterpolantAutomaton]: CoverageRelationStatistics Valid=141, Invalid=1119, Unknown=0, NotChecked=0, Total=1260 [2018-04-05 16:05:20,817 INFO L87 Difference]: Start difference. First operand 62 states and 64 transitions. Second operand 36 states. [2018-04-05 16:05:22,347 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-04-05 16:05:22,348 INFO L93 Difference]: Finished difference Result 110 states and 115 transitions. [2018-04-05 16:05:22,348 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 33 states. [2018-04-05 16:05:22,348 INFO L78 Accepts]: Start accepts. Automaton has 36 states. Word has length 59 [2018-04-05 16:05:22,348 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-04-05 16:05:22,349 INFO L225 Difference]: With dead ends: 110 [2018-04-05 16:05:22,349 INFO L226 Difference]: Without dead ends: 109 [2018-04-05 16:05:22,350 INFO L567 BasicCegarLoop]: 0 DeclaredPredicates, 146 GetRequests, 83 SyntacticMatches, 0 SemanticMatches, 63 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 783 ImplicationChecksByTransitivity, 1.9s TimeCoverageRelationStatistics Valid=547, Invalid=3613, Unknown=0, NotChecked=0, Total=4160 [2018-04-05 16:05:22,350 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 109 states. [2018-04-05 16:05:22,358 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 109 to 106. [2018-04-05 16:05:22,358 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 106 states. [2018-04-05 16:05:22,359 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 106 states to 106 states and 108 transitions. [2018-04-05 16:05:22,359 INFO L78 Accepts]: Start accepts. Automaton has 106 states and 108 transitions. Word has length 59 [2018-04-05 16:05:22,359 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-04-05 16:05:22,359 INFO L459 AbstractCegarLoop]: Abstraction has 106 states and 108 transitions. [2018-04-05 16:05:22,359 INFO L460 AbstractCegarLoop]: Interpolant automaton has 36 states. [2018-04-05 16:05:22,359 INFO L276 IsEmpty]: Start isEmpty. Operand 106 states and 108 transitions. [2018-04-05 16:05:22,361 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 104 [2018-04-05 16:05:22,361 INFO L347 BasicCegarLoop]: Found error trace [2018-04-05 16:05:22,361 INFO L355 BasicCegarLoop]: trace histogram [8, 8, 7, 7, 7, 7, 7, 7, 7, 7, 7, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2018-04-05 16:05:22,361 INFO L408 AbstractCegarLoop]: === Iteration 16 === [mainErr1RequiresViolation, mainErr2EnsuresViolationMEMORY_LEAK, mainErr0RequiresViolation, __U_MULTI_fopenbsd_cstpcpy_alloca_true_valid_memsafety_true_termination_i__cstpcpyErr3RequiresViolation, __U_MULTI_fopenbsd_cstpcpy_alloca_true_valid_memsafety_true_termination_i__cstpcpyErr1RequiresViolation, __U_MULTI_fopenbsd_cstpcpy_alloca_true_valid_memsafety_true_termination_i__cstpcpyErr0RequiresViolation, __U_MULTI_fopenbsd_cstpcpy_alloca_true_valid_memsafety_true_termination_i__cstpcpyErr2RequiresViolation]=== [2018-04-05 16:05:22,361 INFO L82 PathProgramCache]: Analyzing trace with hash -713488454, now seen corresponding path program 3 times No working directory specified, using /storage/ultimate/releaseScripts/default/UAutomizer-linux/z3 Starting monitored process 17 with z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 17 with z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2018-04-05 16:05:22,369 INFO L68 tionRefinementEngine]: Using refinement strategy FixedRefinementStrategy [2018-04-05 16:05:22,422 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-04-05 16:05:22,427 INFO L270 TraceCheckSpWp]: Computing forward predicates... [2018-04-05 16:05:22,448 INFO L477 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 6 treesize of output 5 [2018-04-05 16:05:22,449 INFO L267 ElimStorePlain]: Start of recursive call 2: End of recursive call: and 1 xjuncts. [2018-04-05 16:05:22,456 INFO L477 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 6 treesize of output 5 [2018-04-05 16:05:22,457 INFO L267 ElimStorePlain]: Start of recursive call 3: End of recursive call: and 1 xjuncts. [2018-04-05 16:05:22,462 INFO L267 ElimStorePlain]: Start of recursive call 1: 1 dim-0 vars, 2 dim-1 vars, End of recursive call: and 1 xjuncts. [2018-04-05 16:05:22,463 INFO L202 ElimStorePlain]: Needed 3 recursive calls to eliminate 3 variables, input treesize:19, output treesize:14 [2018-04-05 16:05:22,547 INFO L700 Elim1Store]: detected not equals via solver [2018-04-05 16:05:22,554 INFO L700 Elim1Store]: detected not equals via solver [2018-04-05 16:05:22,554 INFO L477 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 2 select indices, 2 select index equivalence classes, 2 disjoint index pairs (out of 1 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 11 treesize of output 4 [2018-04-05 16:05:22,555 INFO L267 ElimStorePlain]: Start of recursive call 2: End of recursive call: and 1 xjuncts. [2018-04-05 16:05:22,610 INFO L477 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 1 select indices, 1 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 12 treesize of output 15 [2018-04-05 16:05:22,611 INFO L267 ElimStorePlain]: Start of recursive call 3: End of recursive call: and 1 xjuncts. [2018-04-05 16:05:22,657 INFO L267 ElimStorePlain]: Start of recursive call 1: 1 dim-0 vars, 2 dim-1 vars, End of recursive call: and 1 xjuncts. [2018-04-05 16:05:22,657 INFO L202 ElimStorePlain]: Needed 3 recursive calls to eliminate 3 variables, input treesize:25, output treesize:15 [2018-04-05 16:05:23,464 INFO L134 CoverageAnalysis]: Checked inductivity of 252 backedges. 0 proven. 252 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-04-05 16:05:23,465 INFO L314 TraceCheckSpWp]: Computing backward predicates... [2018-04-05 16:05:24,321 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 6 treesize of output 1 [2018-04-05 16:05:24,322 INFO L267 ElimStorePlain]: Start of recursive call 2: End of recursive call: and 1 xjuncts. [2018-04-05 16:05:24,325 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 1 new quantified variables, introduced 0 case distinctions, treesize of input 11 treesize of output 15 [2018-04-05 16:05:24,334 WARN L307 Elim1Store]: Array PQE input equivalent to true [2018-04-05 16:05:24,334 INFO L267 ElimStorePlain]: Start of recursive call 4: End of recursive call: and 1 xjuncts. [2018-04-05 16:05:24,336 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 12 treesize of output 3 [2018-04-05 16:05:24,336 INFO L267 ElimStorePlain]: Start of recursive call 5: End of recursive call: and 1 xjuncts. [2018-04-05 16:05:24,343 INFO L267 ElimStorePlain]: Start of recursive call 3: 1 dim-1 vars, End of recursive call: and 1 xjuncts. [2018-04-05 16:05:24,346 INFO L267 ElimStorePlain]: Start of recursive call 1: 2 dim-0 vars, 2 dim-1 vars, End of recursive call: and 1 xjuncts. [2018-04-05 16:05:24,347 INFO L202 ElimStorePlain]: Needed 5 recursive calls to eliminate 4 variables, input treesize:24, output treesize:7 [2018-04-05 16:05:24,407 INFO L134 CoverageAnalysis]: Checked inductivity of 252 backedges. 0 proven. 252 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-04-05 16:05:24,429 INFO L320 seRefinementStrategy]: Constructing automaton from 0 perfect and 2 imperfect interpolant sequences. [2018-04-05 16:05:24,429 INFO L335 seRefinementStrategy]: Number of different interpolants: perfect sequences [] imperfect sequences [26, 26] total 51 [2018-04-05 16:05:24,429 INFO L442 AbstractCegarLoop]: Interpolant automaton has 52 states [2018-04-05 16:05:24,430 INFO L132 InterpolantAutomaton]: Constructing interpolant automaton starting with 52 interpolants. [2018-04-05 16:05:24,430 INFO L133 InterpolantAutomaton]: CoverageRelationStatistics Valid=321, Invalid=2331, Unknown=0, NotChecked=0, Total=2652 [2018-04-05 16:05:24,431 INFO L87 Difference]: Start difference. First operand 106 states and 108 transitions. Second operand 52 states. [2018-04-05 16:05:26,736 WARN L151 SmtUtils]: Spent 130ms on a formula simplification. DAG size of input: 85 DAG size of output 70 [2018-04-05 16:05:28,629 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-04-05 16:05:28,630 INFO L93 Difference]: Finished difference Result 198 states and 207 transitions. [2018-04-05 16:05:28,630 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 57 states. [2018-04-05 16:05:28,630 INFO L78 Accepts]: Start accepts. Automaton has 52 states. Word has length 103 [2018-04-05 16:05:28,630 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-04-05 16:05:28,631 INFO L225 Difference]: With dead ends: 198 [2018-04-05 16:05:28,631 INFO L226 Difference]: Without dead ends: 197 [2018-04-05 16:05:28,633 INFO L567 BasicCegarLoop]: 0 DeclaredPredicates, 258 GetRequests, 155 SyntacticMatches, 0 SemanticMatches, 103 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 2601 ImplicationChecksByTransitivity, 4.8s TimeCoverageRelationStatistics Valid=1519, Invalid=9401, Unknown=0, NotChecked=0, Total=10920 [2018-04-05 16:05:28,634 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 197 states. [2018-04-05 16:05:28,653 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 197 to 194. [2018-04-05 16:05:28,653 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 194 states. [2018-04-05 16:05:28,655 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 194 states to 194 states and 196 transitions. [2018-04-05 16:05:28,656 INFO L78 Accepts]: Start accepts. Automaton has 194 states and 196 transitions. Word has length 103 [2018-04-05 16:05:28,656 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-04-05 16:05:28,656 INFO L459 AbstractCegarLoop]: Abstraction has 194 states and 196 transitions. [2018-04-05 16:05:28,656 INFO L460 AbstractCegarLoop]: Interpolant automaton has 52 states. [2018-04-05 16:05:28,656 INFO L276 IsEmpty]: Start isEmpty. Operand 194 states and 196 transitions. [2018-04-05 16:05:28,659 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 192 [2018-04-05 16:05:28,659 INFO L347 BasicCegarLoop]: Found error trace [2018-04-05 16:05:28,660 INFO L355 BasicCegarLoop]: trace histogram [16, 16, 15, 15, 15, 15, 15, 15, 15, 15, 15, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2018-04-05 16:05:28,660 INFO L408 AbstractCegarLoop]: === Iteration 17 === [mainErr1RequiresViolation, mainErr2EnsuresViolationMEMORY_LEAK, mainErr0RequiresViolation, __U_MULTI_fopenbsd_cstpcpy_alloca_true_valid_memsafety_true_termination_i__cstpcpyErr3RequiresViolation, __U_MULTI_fopenbsd_cstpcpy_alloca_true_valid_memsafety_true_termination_i__cstpcpyErr1RequiresViolation, __U_MULTI_fopenbsd_cstpcpy_alloca_true_valid_memsafety_true_termination_i__cstpcpyErr0RequiresViolation, __U_MULTI_fopenbsd_cstpcpy_alloca_true_valid_memsafety_true_termination_i__cstpcpyErr2RequiresViolation]=== [2018-04-05 16:05:28,660 INFO L82 PathProgramCache]: Analyzing trace with hash 1189067706, now seen corresponding path program 4 times No working directory specified, using /storage/ultimate/releaseScripts/default/UAutomizer-linux/z3 Starting monitored process 18 with z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 18 with z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2018-04-05 16:05:28,671 INFO L68 tionRefinementEngine]: Using refinement strategy FixedRefinementStrategy [2018-04-05 16:05:28,731 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-04-05 16:05:28,738 INFO L270 TraceCheckSpWp]: Computing forward predicates... [2018-04-05 16:05:28,743 INFO L477 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 6 treesize of output 5 [2018-04-05 16:05:28,743 INFO L267 ElimStorePlain]: Start of recursive call 2: End of recursive call: and 1 xjuncts. [2018-04-05 16:05:28,749 INFO L477 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 6 treesize of output 5 [2018-04-05 16:05:28,749 INFO L267 ElimStorePlain]: Start of recursive call 3: End of recursive call: and 1 xjuncts. [2018-04-05 16:05:28,754 INFO L267 ElimStorePlain]: Start of recursive call 1: 1 dim-0 vars, 2 dim-1 vars, End of recursive call: and 1 xjuncts. [2018-04-05 16:05:28,755 INFO L202 ElimStorePlain]: Needed 3 recursive calls to eliminate 3 variables, input treesize:19, output treesize:14 [2018-04-05 16:05:28,769 INFO L700 Elim1Store]: detected not equals via solver [2018-04-05 16:05:28,770 INFO L477 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 1 select indices, 1 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 12 treesize of output 15 [2018-04-05 16:05:28,771 INFO L267 ElimStorePlain]: Start of recursive call 2: End of recursive call: and 1 xjuncts. [2018-04-05 16:05:28,778 INFO L700 Elim1Store]: detected not equals via solver [2018-04-05 16:05:28,779 INFO L700 Elim1Store]: detected not equals via solver [2018-04-05 16:05:28,780 INFO L477 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 2 select indices, 2 select index equivalence classes, 2 disjoint index pairs (out of 1 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 11 treesize of output 4 [2018-04-05 16:05:28,780 INFO L267 ElimStorePlain]: Start of recursive call 3: End of recursive call: and 1 xjuncts. [2018-04-05 16:05:28,785 INFO L267 ElimStorePlain]: Start of recursive call 1: 1 dim-0 vars, 2 dim-1 vars, End of recursive call: and 1 xjuncts. [2018-04-05 16:05:28,785 INFO L202 ElimStorePlain]: Needed 3 recursive calls to eliminate 3 variables, input treesize:25, output treesize:15 [2018-04-05 16:05:29,899 INFO L134 CoverageAnalysis]: Checked inductivity of 1200 backedges. 0 proven. 1200 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-04-05 16:05:29,899 INFO L314 TraceCheckSpWp]: Computing backward predicates... [2018-04-05 16:05:31,970 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 6 treesize of output 1 [2018-04-05 16:05:31,970 INFO L267 ElimStorePlain]: Start of recursive call 2: End of recursive call: and 1 xjuncts. [2018-04-05 16:05:32,021 INFO L477 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 11 treesize of output 15 [2018-04-05 16:05:32,029 INFO L477 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 12 treesize of output 3 [2018-04-05 16:05:32,030 INFO L267 ElimStorePlain]: Start of recursive call 4: End of recursive call: and 1 xjuncts. [2018-04-05 16:05:32,032 WARN L307 Elim1Store]: Array PQE input equivalent to true [2018-04-05 16:05:32,033 INFO L267 ElimStorePlain]: Start of recursive call 5: End of recursive call: and 1 xjuncts. [2018-04-05 16:05:32,036 INFO L267 ElimStorePlain]: Start of recursive call 3: 1 dim-1 vars, End of recursive call: and 1 xjuncts. [2018-04-05 16:05:32,039 INFO L267 ElimStorePlain]: Start of recursive call 1: 2 dim-0 vars, 2 dim-1 vars, End of recursive call: and 1 xjuncts. [2018-04-05 16:05:32,039 INFO L202 ElimStorePlain]: Needed 5 recursive calls to eliminate 4 variables, input treesize:24, output treesize:7 [2018-04-05 16:05:32,197 INFO L134 CoverageAnalysis]: Checked inductivity of 1200 backedges. 0 proven. 1200 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-04-05 16:05:32,226 INFO L320 seRefinementStrategy]: Constructing automaton from 0 perfect and 2 imperfect interpolant sequences. [2018-04-05 16:05:32,226 INFO L335 seRefinementStrategy]: Number of different interpolants: perfect sequences [] imperfect sequences [42, 42] total 83 [2018-04-05 16:05:32,227 INFO L442 AbstractCegarLoop]: Interpolant automaton has 84 states [2018-04-05 16:05:32,227 INFO L132 InterpolantAutomaton]: Constructing interpolant automaton starting with 84 interpolants. [2018-04-05 16:05:32,228 INFO L133 InterpolantAutomaton]: CoverageRelationStatistics Valid=969, Invalid=6003, Unknown=0, NotChecked=0, Total=6972 [2018-04-05 16:05:32,228 INFO L87 Difference]: Start difference. First operand 194 states and 196 transitions. Second operand 84 states. [2018-04-05 16:05:37,577 WARN L151 SmtUtils]: Spent 180ms on a formula simplification. DAG size of input: 149 DAG size of output 118 [2018-04-05 16:05:37,895 WARN L151 SmtUtils]: Spent 156ms on a formula simplification. DAG size of input: 138 DAG size of output 110 [2018-04-05 16:05:38,158 WARN L151 SmtUtils]: Spent 137ms on a formula simplification. DAG size of input: 134 DAG size of output 106 [2018-04-05 16:05:38,415 WARN L151 SmtUtils]: Spent 138ms on a formula simplification. DAG size of input: 134 DAG size of output 106 [2018-04-05 16:05:38,672 WARN L151 SmtUtils]: Spent 131ms on a formula simplification. DAG size of input: 130 DAG size of output 104 [2018-04-05 16:05:38,924 WARN L151 SmtUtils]: Spent 130ms on a formula simplification. DAG size of input: 126 DAG size of output 100 [2018-04-05 16:05:39,218 WARN L151 SmtUtils]: Spent 129ms on a formula simplification. DAG size of input: 126 DAG size of output 100 [2018-04-05 16:05:39,460 WARN L151 SmtUtils]: Spent 123ms on a formula simplification. DAG size of input: 122 DAG size of output 98 [2018-04-05 16:05:39,712 WARN L151 SmtUtils]: Spent 130ms on a formula simplification. DAG size of input: 118 DAG size of output 94 [2018-04-05 16:05:39,944 WARN L151 SmtUtils]: Spent 119ms on a formula simplification. DAG size of input: 118 DAG size of output 94 [2018-04-05 16:05:40,180 WARN L151 SmtUtils]: Spent 110ms on a formula simplification. DAG size of input: 114 DAG size of output 92 [2018-04-05 16:05:40,441 WARN L151 SmtUtils]: Spent 108ms on a formula simplification. DAG size of input: 110 DAG size of output 88 [2018-04-05 16:05:40,656 WARN L151 SmtUtils]: Spent 106ms on a formula simplification. DAG size of input: 110 DAG size of output 88 [2018-04-05 16:05:40,877 WARN L151 SmtUtils]: Spent 103ms on a formula simplification. DAG size of input: 106 DAG size of output 86 [2018-04-05 16:05:41,962 WARN L151 SmtUtils]: Spent 112ms on a formula simplification. DAG size of input: 94 DAG size of output 76 [2018-04-05 16:05:43,691 WARN L151 SmtUtils]: Spent 165ms on a formula simplification. DAG size of input: 70 DAG size of output 58 [2018-04-05 16:05:46,159 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-04-05 16:05:46,159 INFO L93 Difference]: Finished difference Result 374 states and 391 transitions. [2018-04-05 16:05:46,159 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 105 states. [2018-04-05 16:05:46,159 INFO L78 Accepts]: Start accepts. Automaton has 84 states. Word has length 191 [2018-04-05 16:05:46,160 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-04-05 16:05:46,161 INFO L225 Difference]: With dead ends: 374 [2018-04-05 16:05:46,162 INFO L226 Difference]: Without dead ends: 373 [2018-04-05 16:05:46,169 INFO L567 BasicCegarLoop]: 0 DeclaredPredicates, 482 GetRequests, 299 SyntacticMatches, 0 SemanticMatches, 183 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 9453 ImplicationChecksByTransitivity, 14.3s TimeCoverageRelationStatistics Valid=5191, Invalid=28849, Unknown=0, NotChecked=0, Total=34040 [2018-04-05 16:05:46,170 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 373 states. [2018-04-05 16:05:46,205 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 373 to 370. [2018-04-05 16:05:46,205 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 370 states. [2018-04-05 16:05:46,207 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 370 states to 370 states and 372 transitions. [2018-04-05 16:05:46,207 INFO L78 Accepts]: Start accepts. Automaton has 370 states and 372 transitions. Word has length 191 [2018-04-05 16:05:46,208 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-04-05 16:05:46,208 INFO L459 AbstractCegarLoop]: Abstraction has 370 states and 372 transitions. [2018-04-05 16:05:46,208 INFO L460 AbstractCegarLoop]: Interpolant automaton has 84 states. [2018-04-05 16:05:46,208 INFO L276 IsEmpty]: Start isEmpty. Operand 370 states and 372 transitions. [2018-04-05 16:05:46,218 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 368 [2018-04-05 16:05:46,218 INFO L347 BasicCegarLoop]: Found error trace [2018-04-05 16:05:46,219 INFO L355 BasicCegarLoop]: trace histogram [32, 32, 31, 31, 31, 31, 31, 31, 31, 31, 31, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2018-04-05 16:05:46,222 INFO L408 AbstractCegarLoop]: === Iteration 18 === [mainErr1RequiresViolation, mainErr2EnsuresViolationMEMORY_LEAK, mainErr0RequiresViolation, __U_MULTI_fopenbsd_cstpcpy_alloca_true_valid_memsafety_true_termination_i__cstpcpyErr3RequiresViolation, __U_MULTI_fopenbsd_cstpcpy_alloca_true_valid_memsafety_true_termination_i__cstpcpyErr1RequiresViolation, __U_MULTI_fopenbsd_cstpcpy_alloca_true_valid_memsafety_true_termination_i__cstpcpyErr0RequiresViolation, __U_MULTI_fopenbsd_cstpcpy_alloca_true_valid_memsafety_true_termination_i__cstpcpyErr2RequiresViolation]=== [2018-04-05 16:05:46,222 INFO L82 PathProgramCache]: Analyzing trace with hash -1690754118, now seen corresponding path program 5 times No working directory specified, using /storage/ultimate/releaseScripts/default/UAutomizer-linux/z3 Starting monitored process 19 with z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 19 with z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2018-04-05 16:05:46,234 INFO L68 tionRefinementEngine]: Using refinement strategy FixedRefinementStrategy [2018-04-05 16:05:46,356 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-04-05 16:05:46,369 INFO L270 TraceCheckSpWp]: Computing forward predicates... [2018-04-05 16:05:46,375 INFO L477 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 6 treesize of output 5 [2018-04-05 16:05:46,375 INFO L267 ElimStorePlain]: Start of recursive call 2: End of recursive call: and 1 xjuncts. [2018-04-05 16:05:46,382 INFO L477 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 6 treesize of output 5 [2018-04-05 16:05:46,382 INFO L267 ElimStorePlain]: Start of recursive call 3: End of recursive call: and 1 xjuncts. [2018-04-05 16:05:46,388 INFO L267 ElimStorePlain]: Start of recursive call 1: 1 dim-0 vars, 2 dim-1 vars, End of recursive call: and 1 xjuncts. [2018-04-05 16:05:46,388 INFO L202 ElimStorePlain]: Needed 3 recursive calls to eliminate 3 variables, input treesize:19, output treesize:14 [2018-04-05 16:05:46,402 INFO L700 Elim1Store]: detected not equals via solver [2018-04-05 16:05:46,403 INFO L477 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 1 select indices, 1 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 12 treesize of output 15 [2018-04-05 16:05:46,403 INFO L267 ElimStorePlain]: Start of recursive call 2: End of recursive call: and 1 xjuncts. [2018-04-05 16:05:46,411 INFO L700 Elim1Store]: detected not equals via solver [2018-04-05 16:05:46,412 INFO L700 Elim1Store]: detected not equals via solver [2018-04-05 16:05:46,412 INFO L477 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 2 select indices, 2 select index equivalence classes, 2 disjoint index pairs (out of 1 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 11 treesize of output 4 [2018-04-05 16:05:46,412 INFO L267 ElimStorePlain]: Start of recursive call 3: End of recursive call: and 1 xjuncts. [2018-04-05 16:05:46,417 INFO L267 ElimStorePlain]: Start of recursive call 1: 1 dim-0 vars, 2 dim-1 vars, End of recursive call: and 1 xjuncts. [2018-04-05 16:05:46,417 INFO L202 ElimStorePlain]: Needed 3 recursive calls to eliminate 3 variables, input treesize:25, output treesize:15 [2018-04-05 16:05:49,997 INFO L134 CoverageAnalysis]: Checked inductivity of 5208 backedges. 0 proven. 5208 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-04-05 16:05:49,997 INFO L314 TraceCheckSpWp]: Computing backward predicates... [2018-04-05 16:05:57,006 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 6 treesize of output 1 [2018-04-05 16:05:57,006 INFO L267 ElimStorePlain]: Start of recursive call 2: End of recursive call: and 1 xjuncts. [2018-04-05 16:05:57,011 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 1 new quantified variables, introduced 0 case distinctions, treesize of input 11 treesize of output 15 [2018-04-05 16:05:57,025 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 12 treesize of output 3 [2018-04-05 16:05:57,026 INFO L267 ElimStorePlain]: Start of recursive call 4: End of recursive call: and 1 xjuncts. [2018-04-05 16:05:57,026 WARN L307 Elim1Store]: Array PQE input equivalent to true [2018-04-05 16:05:57,026 INFO L267 ElimStorePlain]: Start of recursive call 5: End of recursive call: and 1 xjuncts. [2018-04-05 16:05:57,030 INFO L267 ElimStorePlain]: Start of recursive call 3: 1 dim-1 vars, End of recursive call: and 1 xjuncts. [2018-04-05 16:05:57,034 INFO L267 ElimStorePlain]: Start of recursive call 1: 2 dim-0 vars, 2 dim-1 vars, End of recursive call: and 1 xjuncts. [2018-04-05 16:05:57,034 INFO L202 ElimStorePlain]: Needed 5 recursive calls to eliminate 4 variables, input treesize:24, output treesize:7 [2018-04-05 16:05:57,669 INFO L134 CoverageAnalysis]: Checked inductivity of 5208 backedges. 0 proven. 5208 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-04-05 16:05:57,705 INFO L320 seRefinementStrategy]: Constructing automaton from 0 perfect and 2 imperfect interpolant sequences. [2018-04-05 16:05:57,705 INFO L335 seRefinementStrategy]: Number of different interpolants: perfect sequences [] imperfect sequences [74, 74] total 147 [2018-04-05 16:05:57,706 INFO L442 AbstractCegarLoop]: Interpolant automaton has 148 states [2018-04-05 16:05:57,707 INFO L132 InterpolantAutomaton]: Constructing interpolant automaton starting with 148 interpolants. [2018-04-05 16:05:57,714 INFO L133 InterpolantAutomaton]: CoverageRelationStatistics Valid=3417, Invalid=18339, Unknown=0, NotChecked=0, Total=21756 [2018-04-05 16:05:57,714 INFO L87 Difference]: Start difference. First operand 370 states and 372 transitions. Second operand 148 states. [2018-04-05 16:06:12,675 WARN L151 SmtUtils]: Spent 454ms on a formula simplification. DAG size of input: 277 DAG size of output 214 [2018-04-05 16:06:13,461 WARN L151 SmtUtils]: Spent 350ms on a formula simplification. DAG size of input: 266 DAG size of output 206 [2018-04-05 16:06:14,172 WARN L151 SmtUtils]: Spent 357ms on a formula simplification. DAG size of input: 262 DAG size of output 202 [2018-04-05 16:06:14,821 WARN L151 SmtUtils]: Spent 361ms on a formula simplification. DAG size of input: 262 DAG size of output 202 [2018-04-05 16:06:15,565 WARN L151 SmtUtils]: Spent 360ms on a formula simplification. DAG size of input: 258 DAG size of output 200 [2018-04-05 16:06:16,283 WARN L151 SmtUtils]: Spent 344ms on a formula simplification. DAG size of input: 254 DAG size of output 196 [2018-04-05 16:06:16,941 WARN L151 SmtUtils]: Spent 332ms on a formula simplification. DAG size of input: 254 DAG size of output 196 [2018-04-05 16:06:17,697 WARN L151 SmtUtils]: Spent 342ms on a formula simplification. DAG size of input: 250 DAG size of output 194 [2018-04-05 16:06:18,465 WARN L151 SmtUtils]: Spent 366ms on a formula simplification. DAG size of input: 246 DAG size of output 190 [2018-04-05 16:06:19,133 WARN L151 SmtUtils]: Spent 363ms on a formula simplification. DAG size of input: 246 DAG size of output 190 [2018-04-05 16:06:19,903 WARN L151 SmtUtils]: Spent 331ms on a formula simplification. DAG size of input: 242 DAG size of output 188 [2018-04-05 16:06:20,534 WARN L151 SmtUtils]: Spent 300ms on a formula simplification. DAG size of input: 238 DAG size of output 184 [2018-04-05 16:06:21,603 WARN L151 SmtUtils]: Spent 777ms on a formula simplification. DAG size of input: 238 DAG size of output 184 [2018-04-05 16:06:24,586 WARN L151 SmtUtils]: Spent 1918ms on a formula simplification. DAG size of input: 234 DAG size of output 182 [2018-04-05 16:06:26,182 WARN L151 SmtUtils]: Spent 810ms on a formula simplification. DAG size of input: 230 DAG size of output 178 [2018-04-05 16:06:26,839 WARN L151 SmtUtils]: Spent 328ms on a formula simplification. DAG size of input: 230 DAG size of output 178 [2018-04-05 16:06:27,481 WARN L151 SmtUtils]: Spent 290ms on a formula simplification. DAG size of input: 226 DAG size of output 176 [2018-04-05 16:06:28,165 WARN L151 SmtUtils]: Spent 291ms on a formula simplification. DAG size of input: 222 DAG size of output 172 [2018-04-05 16:06:28,777 WARN L151 SmtUtils]: Spent 307ms on a formula simplification. DAG size of input: 222 DAG size of output 172 [2018-04-05 16:06:29,429 WARN L151 SmtUtils]: Spent 293ms on a formula simplification. DAG size of input: 218 DAG size of output 170 [2018-04-05 16:06:30,052 WARN L151 SmtUtils]: Spent 269ms on a formula simplification. DAG size of input: 214 DAG size of output 166 [2018-04-05 16:06:30,628 WARN L151 SmtUtils]: Spent 271ms on a formula simplification. DAG size of input: 214 DAG size of output 166 [2018-04-05 16:06:31,242 WARN L151 SmtUtils]: Spent 262ms on a formula simplification. DAG size of input: 210 DAG size of output 164 [2018-04-05 16:06:31,816 WARN L151 SmtUtils]: Spent 246ms on a formula simplification. DAG size of input: 206 DAG size of output 160 [2018-04-05 16:06:32,379 WARN L151 SmtUtils]: Spent 258ms on a formula simplification. DAG size of input: 206 DAG size of output 160 [2018-04-05 16:06:32,950 WARN L151 SmtUtils]: Spent 239ms on a formula simplification. DAG size of input: 202 DAG size of output 158 [2018-04-05 16:06:33,741 WARN L151 SmtUtils]: Spent 334ms on a formula simplification. DAG size of input: 198 DAG size of output 154 [2018-04-05 16:06:36,122 WARN L151 SmtUtils]: Spent 1850ms on a formula simplification. DAG size of input: 198 DAG size of output 154 [2018-04-05 16:06:39,647 WARN L151 SmtUtils]: Spent 2592ms on a formula simplification. DAG size of input: 194 DAG size of output 152 [2018-04-05 16:06:41,528 WARN L151 SmtUtils]: Spent 1181ms on a formula simplification. DAG size of input: 190 DAG size of output 148 [2018-04-05 16:06:44,105 WARN L151 SmtUtils]: Spent 1839ms on a formula simplification. DAG size of input: 190 DAG size of output 148 [2018-04-05 16:06:47,220 WARN L151 SmtUtils]: Spent 2143ms on a formula simplification. DAG size of input: 186 DAG size of output 146 [2018-04-05 16:06:50,896 WARN L151 SmtUtils]: Spent 2435ms on a formula simplification. DAG size of input: 182 DAG size of output 142 [2018-04-05 16:06:53,681 WARN L151 SmtUtils]: Spent 1623ms on a formula simplification. DAG size of input: 182 DAG size of output 142 [2018-04-05 16:06:56,373 WARN L151 SmtUtils]: Spent 1368ms on a formula simplification. DAG size of input: 178 DAG size of output 140 [2018-04-05 16:06:58,802 WARN L151 SmtUtils]: Spent 1502ms on a formula simplification. DAG size of input: 174 DAG size of output 136 [2018-04-05 16:07:01,981 WARN L151 SmtUtils]: Spent 2294ms on a formula simplification. DAG size of input: 174 DAG size of output 136 [2018-04-05 16:07:04,201 WARN L151 SmtUtils]: Spent 1226ms on a formula simplification. DAG size of input: 170 DAG size of output 134 [2018-04-05 16:07:06,129 WARN L151 SmtUtils]: Spent 869ms on a formula simplification. DAG size of input: 166 DAG size of output 130 [2018-04-05 16:07:08,347 WARN L151 SmtUtils]: Spent 1713ms on a formula simplification. DAG size of input: 166 DAG size of output 130 [2018-04-05 16:07:11,321 WARN L151 SmtUtils]: Spent 1251ms on a formula simplification. DAG size of input: 162 DAG size of output 128 [2018-04-05 16:07:13,773 WARN L151 SmtUtils]: Spent 1136ms on a formula simplification. DAG size of input: 158 DAG size of output 124 [2018-04-05 16:07:16,199 WARN L151 SmtUtils]: Spent 1473ms on a formula simplification. DAG size of input: 158 DAG size of output 124 [2018-04-05 16:07:18,483 WARN L151 SmtUtils]: Spent 1285ms on a formula simplification. DAG size of input: 154 DAG size of output 122 [2018-04-05 16:07:20,331 WARN L151 SmtUtils]: Spent 1033ms on a formula simplification. DAG size of input: 150 DAG size of output 118 [2018-04-05 16:07:22,376 WARN L151 SmtUtils]: Spent 966ms on a formula simplification. DAG size of input: 150 DAG size of output 118 [2018-04-05 16:07:24,058 WARN L151 SmtUtils]: Spent 1092ms on a formula simplification. DAG size of input: 146 DAG size of output 116 [2018-04-05 16:07:26,019 WARN L151 SmtUtils]: Spent 1050ms on a formula simplification. DAG size of input: 142 DAG size of output 112 [2018-04-05 16:07:28,211 WARN L151 SmtUtils]: Spent 1089ms on a formula simplification. DAG size of input: 142 DAG size of output 112 [2018-04-05 16:07:30,131 WARN L151 SmtUtils]: Spent 1034ms on a formula simplification. DAG size of input: 138 DAG size of output 110 [2018-04-05 16:07:32,033 WARN L151 SmtUtils]: Spent 947ms on a formula simplification. DAG size of input: 134 DAG size of output 106 [2018-04-05 16:07:34,263 WARN L151 SmtUtils]: Spent 1092ms on a formula simplification. DAG size of input: 134 DAG size of output 106 [2018-04-05 16:07:37,785 WARN L151 SmtUtils]: Spent 2311ms on a formula simplification. DAG size of input: 130 DAG size of output 104 [2018-04-05 16:07:40,551 WARN L151 SmtUtils]: Spent 1718ms on a formula simplification. DAG size of input: 126 DAG size of output 100 [2018-04-05 16:07:42,097 WARN L151 SmtUtils]: Spent 863ms on a formula simplification. DAG size of input: 126 DAG size of output 100 [2018-04-05 16:07:43,644 WARN L151 SmtUtils]: Spent 875ms on a formula simplification. DAG size of input: 122 DAG size of output 98 [2018-04-05 16:07:47,596 WARN L151 SmtUtils]: Spent 2617ms on a formula simplification. DAG size of input: 118 DAG size of output 94 [2018-04-05 16:07:50,547 WARN L151 SmtUtils]: Spent 1279ms on a formula simplification. DAG size of input: 118 DAG size of output 94 [2018-04-05 16:07:52,053 WARN L151 SmtUtils]: Spent 735ms on a formula simplification. DAG size of input: 114 DAG size of output 92 [2018-04-05 16:07:53,783 WARN L151 SmtUtils]: Spent 975ms on a formula simplification. DAG size of input: 110 DAG size of output 88 [2018-04-05 16:07:55,650 WARN L151 SmtUtils]: Spent 872ms on a formula simplification. DAG size of input: 110 DAG size of output 88 [2018-04-05 16:07:57,308 WARN L151 SmtUtils]: Spent 739ms on a formula simplification. DAG size of input: 106 DAG size of output 86 [2018-04-05 16:07:59,049 WARN L151 SmtUtils]: Spent 764ms on a formula simplification. DAG size of input: 102 DAG size of output 82 [2018-04-05 16:08:01,184 WARN L151 SmtUtils]: Spent 1319ms on a formula simplification. DAG size of input: 102 DAG size of output 82 [2018-04-05 16:08:02,531 WARN L151 SmtUtils]: Spent 539ms on a formula simplification. DAG size of input: 98 DAG size of output 80 [2018-04-05 16:08:04,535 WARN L151 SmtUtils]: Spent 1125ms on a formula simplification. DAG size of input: 94 DAG size of output 76 [2018-04-05 16:08:06,211 WARN L151 SmtUtils]: Spent 789ms on a formula simplification. DAG size of input: 94 DAG size of output 76 [2018-04-05 16:08:07,740 WARN L151 SmtUtils]: Spent 849ms on a formula simplification. DAG size of input: 90 DAG size of output 74 [2018-04-05 16:08:09,352 WARN L151 SmtUtils]: Spent 512ms on a formula simplification. DAG size of input: 86 DAG size of output 70 [2018-04-05 16:08:10,724 WARN L151 SmtUtils]: Spent 525ms on a formula simplification. DAG size of input: 86 DAG size of output 70 [2018-04-05 16:08:12,204 WARN L151 SmtUtils]: Spent 505ms on a formula simplification. DAG size of input: 82 DAG size of output 68 [2018-04-05 16:08:13,588 WARN L151 SmtUtils]: Spent 486ms on a formula simplification. DAG size of input: 78 DAG size of output 64 [2018-04-05 16:08:14,833 WARN L151 SmtUtils]: Spent 469ms on a formula simplification. DAG size of input: 78 DAG size of output 64 [2018-04-05 16:08:16,018 WARN L151 SmtUtils]: Spent 465ms on a formula simplification. DAG size of input: 74 DAG size of output 62 [2018-04-05 16:08:17,291 WARN L151 SmtUtils]: Spent 409ms on a formula simplification. DAG size of input: 70 DAG size of output 58 [2018-04-05 16:08:18,560 WARN L151 SmtUtils]: Spent 524ms on a formula simplification. DAG size of input: 70 DAG size of output 58 [2018-04-05 16:08:19,714 WARN L151 SmtUtils]: Spent 390ms on a formula simplification. DAG size of input: 66 DAG size of output 56 [2018-04-05 16:08:20,941 WARN L151 SmtUtils]: Spent 421ms on a formula simplification. DAG size of input: 62 DAG size of output 52 [2018-04-05 16:08:22,066 WARN L151 SmtUtils]: Spent 381ms on a formula simplification. DAG size of input: 62 DAG size of output 52 [2018-04-05 16:08:23,189 WARN L151 SmtUtils]: Spent 346ms on a formula simplification. DAG size of input: 58 DAG size of output 50 [2018-04-05 16:08:24,919 WARN L151 SmtUtils]: Spent 313ms on a formula simplification. DAG size of input: 54 DAG size of output 46 [2018-04-05 16:08:25,992 WARN L151 SmtUtils]: Spent 287ms on a formula simplification. DAG size of input: 54 DAG size of output 46 [2018-04-05 16:08:27,833 WARN L151 SmtUtils]: Spent 415ms on a formula simplification. DAG size of input: 50 DAG size of output 44 [2018-04-05 16:08:29,406 WARN L151 SmtUtils]: Spent 374ms on a formula simplification. DAG size of input: 46 DAG size of output 40 [2018-04-05 16:08:30,439 WARN L151 SmtUtils]: Spent 252ms on a formula simplification. DAG size of input: 46 DAG size of output 40 [2018-04-05 16:08:31,760 WARN L151 SmtUtils]: Spent 251ms on a formula simplification. DAG size of input: 42 DAG size of output 38 [2018-04-05 16:08:32,881 WARN L151 SmtUtils]: Spent 202ms on a formula simplification. DAG size of input: 38 DAG size of output 34 [2018-04-05 16:08:33,771 WARN L151 SmtUtils]: Spent 187ms on a formula simplification. DAG size of input: 38 DAG size of output 34 [2018-04-05 16:08:34,898 WARN L151 SmtUtils]: Spent 186ms on a formula simplification. DAG size of input: 34 DAG size of output 32 [2018-04-05 16:08:36,275 WARN L151 SmtUtils]: Spent 243ms on a formula simplification. DAG size of input: 30 DAG size of output 28 [2018-04-05 16:08:37,742 WARN L151 SmtUtils]: Spent 214ms on a formula simplification. DAG size of input: 30 DAG size of output 28 [2018-04-05 16:08:40,605 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-04-05 16:08:40,605 INFO L93 Difference]: Finished difference Result 726 states and 759 transitions. [2018-04-05 16:08:40,606 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 201 states. [2018-04-05 16:08:40,606 INFO L78 Accepts]: Start accepts. Automaton has 148 states. Word has length 367 [2018-04-05 16:08:40,607 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-04-05 16:08:40,612 INFO L225 Difference]: With dead ends: 726 [2018-04-05 16:08:40,612 INFO L226 Difference]: Without dead ends: 725 [2018-04-05 16:08:40,638 INFO L567 BasicCegarLoop]: 0 DeclaredPredicates, 930 GetRequests, 587 SyntacticMatches, 0 SemanticMatches, 343 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 36021 ImplicationChecksByTransitivity, 162.7s TimeCoverageRelationStatistics Valid=19447, Invalid=99233, Unknown=0, NotChecked=0, Total=118680 [2018-04-05 16:08:40,638 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 725 states. [2018-04-05 16:08:40,757 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 725 to 722. [2018-04-05 16:08:40,757 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 722 states. [2018-04-05 16:08:40,762 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 722 states to 722 states and 724 transitions. [2018-04-05 16:08:40,762 INFO L78 Accepts]: Start accepts. Automaton has 722 states and 724 transitions. Word has length 367 [2018-04-05 16:08:40,763 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-04-05 16:08:40,764 INFO L459 AbstractCegarLoop]: Abstraction has 722 states and 724 transitions. [2018-04-05 16:08:40,764 INFO L460 AbstractCegarLoop]: Interpolant automaton has 148 states. [2018-04-05 16:08:40,764 INFO L276 IsEmpty]: Start isEmpty. Operand 722 states and 724 transitions. [2018-04-05 16:08:40,815 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 720 [2018-04-05 16:08:40,815 INFO L347 BasicCegarLoop]: Found error trace [2018-04-05 16:08:40,815 INFO L355 BasicCegarLoop]: trace histogram [64, 64, 63, 63, 63, 63, 63, 63, 63, 63, 63, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2018-04-05 16:08:40,815 INFO L408 AbstractCegarLoop]: === Iteration 19 === [mainErr1RequiresViolation, mainErr2EnsuresViolationMEMORY_LEAK, mainErr0RequiresViolation, __U_MULTI_fopenbsd_cstpcpy_alloca_true_valid_memsafety_true_termination_i__cstpcpyErr3RequiresViolation, __U_MULTI_fopenbsd_cstpcpy_alloca_true_valid_memsafety_true_termination_i__cstpcpyErr1RequiresViolation, __U_MULTI_fopenbsd_cstpcpy_alloca_true_valid_memsafety_true_termination_i__cstpcpyErr0RequiresViolation, __U_MULTI_fopenbsd_cstpcpy_alloca_true_valid_memsafety_true_termination_i__cstpcpyErr2RequiresViolation]=== [2018-04-05 16:08:40,816 INFO L82 PathProgramCache]: Analyzing trace with hash 974910394, now seen corresponding path program 6 times No working directory specified, using /storage/ultimate/releaseScripts/default/UAutomizer-linux/z3 Starting monitored process 20 with z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 20 with z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2018-04-05 16:08:40,843 INFO L68 tionRefinementEngine]: Using refinement strategy FixedRefinementStrategy [2018-04-05 16:08:41,318 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-04-05 16:08:41,457 INFO L270 TraceCheckSpWp]: Computing forward predicates... [2018-04-05 16:08:41,479 INFO L477 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 6 treesize of output 5 [2018-04-05 16:08:41,480 INFO L267 ElimStorePlain]: Start of recursive call 2: End of recursive call: and 1 xjuncts. [2018-04-05 16:08:41,516 INFO L477 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 6 treesize of output 5 [2018-04-05 16:08:41,517 INFO L267 ElimStorePlain]: Start of recursive call 3: End of recursive call: and 1 xjuncts. [2018-04-05 16:08:41,556 INFO L267 ElimStorePlain]: Start of recursive call 1: 1 dim-0 vars, 2 dim-1 vars, End of recursive call: and 1 xjuncts. [2018-04-05 16:08:41,557 INFO L202 ElimStorePlain]: Needed 3 recursive calls to eliminate 3 variables, input treesize:19, output treesize:14 [2018-04-05 16:08:41,679 INFO L700 Elim1Store]: detected not equals via solver [2018-04-05 16:08:41,689 INFO L700 Elim1Store]: detected not equals via solver [2018-04-05 16:08:41,689 INFO L477 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 2 select indices, 2 select index equivalence classes, 2 disjoint index pairs (out of 1 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 11 treesize of output 4 [2018-04-05 16:08:41,690 INFO L267 ElimStorePlain]: Start of recursive call 2: End of recursive call: and 1 xjuncts. [2018-04-05 16:08:41,793 INFO L477 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 1 select indices, 1 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 12 treesize of output 15 [2018-04-05 16:08:41,793 INFO L267 ElimStorePlain]: Start of recursive call 3: End of recursive call: and 1 xjuncts. [2018-04-05 16:08:41,870 INFO L267 ElimStorePlain]: Start of recursive call 1: 1 dim-0 vars, 2 dim-1 vars, End of recursive call: and 1 xjuncts. [2018-04-05 16:08:41,870 INFO L202 ElimStorePlain]: Needed 3 recursive calls to eliminate 3 variables, input treesize:25, output treesize:15 [2018-04-05 16:08:49,154 WARN L148 SmtUtils]: Spent 215ms on a formula simplification that was a NOOP. DAG size: 15 [2018-04-05 16:08:54,528 WARN L148 SmtUtils]: Spent 124ms on a formula simplification that was a NOOP. DAG size: 15 [2018-04-05 16:09:18,364 WARN L148 SmtUtils]: Spent 303ms on a formula simplification that was a NOOP. DAG size: 15 [2018-04-05 16:09:19,884 WARN L148 SmtUtils]: Spent 150ms on a formula simplification that was a NOOP. DAG size: 15 [2018-04-05 16:09:27,590 WARN L148 SmtUtils]: Spent 115ms on a formula simplification that was a NOOP. DAG size: 16 [2018-04-05 16:09:52,684 INFO L134 CoverageAnalysis]: Checked inductivity of 21672 backedges. 0 proven. 21672 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-04-05 16:09:52,684 INFO L314 TraceCheckSpWp]: Computing backward predicates...