java -Xmx6000000000 -jar ./plugins/org.eclipse.equinox.launcher_1.3.100.v20150511-1540.jar -data ./data --generate-csv --csv-dir ../../../releaseScripts/default/UAutomizer-linux/csv --cacsl2boogietranslator.bitprecise.bitfields false -tc ../../../trunk/examples/toolchains/AutomizerC.xml -s ../../../trunk/examples/settings/cade18-smtinterpol/svcomp-DerefFreeMemtrack-32bit-Automizer_Camel.epf -i ../../../trunk/examples/svcomp/array-memsafety/openbsd_cstpncpy-alloca_true-valid-memsafety_true-termination.i -------------------------------------------------------------------------------- This is Ultimate 0.1.23-666feb3-m [2018-04-11 09:59:59,347 INFO L170 SettingsManager]: Resetting all preferences to default values... [2018-04-11 09:59:59,349 INFO L174 SettingsManager]: Resetting UltimateCore preferences to default values [2018-04-11 09:59:59,362 INFO L177 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2018-04-11 09:59:59,362 INFO L174 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2018-04-11 09:59:59,363 INFO L174 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2018-04-11 09:59:59,364 INFO L174 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2018-04-11 09:59:59,365 INFO L174 SettingsManager]: Resetting LassoRanker preferences to default values [2018-04-11 09:59:59,367 INFO L174 SettingsManager]: Resetting Reaching Definitions preferences to default values [2018-04-11 09:59:59,367 INFO L174 SettingsManager]: Resetting SyntaxChecker preferences to default values [2018-04-11 09:59:59,368 INFO L177 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2018-04-11 09:59:59,368 INFO L174 SettingsManager]: Resetting LTL2Aut preferences to default values [2018-04-11 09:59:59,369 INFO L174 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2018-04-11 09:59:59,370 INFO L174 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2018-04-11 09:59:59,370 INFO L174 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2018-04-11 09:59:59,372 INFO L174 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2018-04-11 09:59:59,373 INFO L174 SettingsManager]: Resetting CodeCheck preferences to default values [2018-04-11 09:59:59,375 INFO L174 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2018-04-11 09:59:59,376 INFO L174 SettingsManager]: Resetting RCFGBuilder preferences to default values [2018-04-11 09:59:59,376 INFO L174 SettingsManager]: Resetting TraceAbstraction preferences to default values [2018-04-11 09:59:59,378 INFO L177 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... 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[2018-04-11 09:59:59,382 INFO L174 SettingsManager]: Resetting Witness Parser preferences to default values [2018-04-11 09:59:59,383 INFO L181 SettingsManager]: Finished resetting all preferences to default values... [2018-04-11 09:59:59,383 INFO L98 SettingsManager]: Beginning loading settings from /home/ultimate/work/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/settings/cade18-smtinterpol/svcomp-DerefFreeMemtrack-32bit-Automizer_Camel.epf [2018-04-11 09:59:59,402 INFO L110 SettingsManager]: Loading preferences was successful [2018-04-11 09:59:59,403 INFO L112 SettingsManager]: Preferences different from defaults after loading the file: [2018-04-11 09:59:59,403 INFO L131 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2018-04-11 09:59:59,404 INFO L133 SettingsManager]: * Create parallel compositions if possible=false [2018-04-11 09:59:59,404 INFO L133 SettingsManager]: * Use SBE=true [2018-04-11 09:59:59,404 INFO L131 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2018-04-11 09:59:59,404 INFO L133 SettingsManager]: * sizeof long=4 [2018-04-11 09:59:59,404 INFO L133 SettingsManager]: * Check unreachability of error function in SV-COMP mode=false [2018-04-11 09:59:59,404 INFO L133 SettingsManager]: * Overapproximate operations on floating types=true [2018-04-11 09:59:59,404 INFO L133 SettingsManager]: * sizeof POINTER=4 [2018-04-11 09:59:59,405 INFO L133 SettingsManager]: * Check division by zero=IGNORE [2018-04-11 09:59:59,405 INFO L133 SettingsManager]: * Check for the main procedure if all allocated memory was freed=true [2018-04-11 09:59:59,405 INFO L133 SettingsManager]: * Bitprecise bitfields=true [2018-04-11 09:59:59,405 INFO L133 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2018-04-11 09:59:59,405 INFO L133 SettingsManager]: * sizeof long double=12 [2018-04-11 09:59:59,405 INFO L131 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2018-04-11 09:59:59,405 INFO L133 SettingsManager]: * Size of a code block=SequenceOfStatements [2018-04-11 09:59:59,406 INFO L133 SettingsManager]: * To the following directory=./dump/ [2018-04-11 09:59:59,406 INFO L133 SettingsManager]: * SMT solver=External_DefaultMode [2018-04-11 09:59:59,406 INFO L133 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2018-04-11 09:59:59,406 INFO L131 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2018-04-11 09:59:59,406 INFO L133 SettingsManager]: * Interpolant automaton=TWOTRACK [2018-04-11 09:59:59,406 INFO L133 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2018-04-11 09:59:59,406 INFO L133 SettingsManager]: * Trace refinement strategy=CAMEL Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Bitprecise bitfields -> false [2018-04-11 09:59:59,434 INFO L81 nceAwareModelManager]: Repository-Root is: /tmp [2018-04-11 09:59:59,443 INFO L266 ainManager$Toolchain]: [Toolchain 1]: Parser(s) successfully (re)initialized [2018-04-11 09:59:59,446 INFO L222 ainManager$Toolchain]: [Toolchain 1]: Toolchain data selected. [2018-04-11 09:59:59,447 INFO L271 PluginConnector]: Initializing CDTParser... [2018-04-11 09:59:59,448 INFO L276 PluginConnector]: CDTParser initialized [2018-04-11 09:59:59,448 INFO L431 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /home/ultimate/work/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/svcomp/array-memsafety/openbsd_cstpncpy-alloca_true-valid-memsafety_true-termination.i [2018-04-11 09:59:59,750 INFO L225 CDTParser]: Created temporary CDT project at /home/ultimate/work/ultimate/releaseScripts/default/UAutomizer-linux/data/FLAG1d2a57af0 [2018-04-11 09:59:59,948 INFO L287 CDTParser]: IsIndexed: true [2018-04-11 09:59:59,948 INFO L288 CDTParser]: Found 1 translation units. [2018-04-11 09:59:59,949 INFO L168 CDTParser]: Scanning openbsd_cstpncpy-alloca_true-valid-memsafety_true-termination.i [2018-04-11 09:59:59,957 INFO L210 ultiparseSymbolTable]: Include resolver: [2018-04-11 09:59:59,957 INFO L215 ultiparseSymbolTable]: [2018-04-11 09:59:59,957 INFO L218 ultiparseSymbolTable]: Function table: [2018-04-11 09:59:59,957 INFO L221 ultiparseSymbolTable]: Function definition of __U_MULTI_fopenbsd_cstpncpy_alloca_true_valid_memsafety_true_termination_i____bswap_32 ('__bswap_32') in openbsd_cstpncpy-alloca_true-valid-memsafety_true-termination.i [2018-04-11 09:59:59,958 INFO L221 ultiparseSymbolTable]: Function definition of __U_MULTI_fopenbsd_cstpncpy_alloca_true_valid_memsafety_true_termination_i__cstpncpy ('cstpncpy') in openbsd_cstpncpy-alloca_true-valid-memsafety_true-termination.i [2018-04-11 09:59:59,958 INFO L221 ultiparseSymbolTable]: Function definition of null ('main') in openbsd_cstpncpy-alloca_true-valid-memsafety_true-termination.i [2018-04-11 09:59:59,958 INFO L221 ultiparseSymbolTable]: Function definition of __U_MULTI_fopenbsd_cstpncpy_alloca_true_valid_memsafety_true_termination_i____bswap_64 ('__bswap_64') in openbsd_cstpncpy-alloca_true-valid-memsafety_true-termination.i [2018-04-11 09:59:59,958 INFO L227 ultiparseSymbolTable]: Global variable table: [2018-04-11 09:59:59,958 INFO L230 ultiparseSymbolTable]: Global variable declaration of __U_MULTI_fopenbsd_cstpncpy_alloca_true_valid_memsafety_true_termination_i____quad_t in openbsd_cstpncpy-alloca_true-valid-memsafety_true-termination.i [2018-04-11 09:59:59,958 INFO L230 ultiparseSymbolTable]: Global variable declaration of __U_MULTI_fopenbsd_cstpncpy_alloca_true_valid_memsafety_true_termination_i____off_t in openbsd_cstpncpy-alloca_true-valid-memsafety_true-termination.i [2018-04-11 09:59:59,958 INFO L230 ultiparseSymbolTable]: Global variable declaration of __U_MULTI_fopenbsd_cstpncpy_alloca_true_valid_memsafety_true_termination_i____fsid_t in openbsd_cstpncpy-alloca_true-valid-memsafety_true-termination.i [2018-04-11 09:59:59,958 INFO L230 ultiparseSymbolTable]: Global variable declaration of __U_MULTI_fopenbsd_cstpncpy_alloca_true_valid_memsafety_true_termination_i____uint16_t in openbsd_cstpncpy-alloca_true-valid-memsafety_true-termination.i [2018-04-11 09:59:59,958 INFO L230 ultiparseSymbolTable]: Global variable declaration of __U_MULTI_fopenbsd_cstpncpy_alloca_true_valid_memsafety_true_termination_i____gid_t in openbsd_cstpncpy-alloca_true-valid-memsafety_true-termination.i [2018-04-11 09:59:59,958 INFO L230 ultiparseSymbolTable]: Global variable declaration of __U_MULTI_fopenbsd_cstpncpy_alloca_true_valid_memsafety_true_termination_i__daddr_t in openbsd_cstpncpy-alloca_true-valid-memsafety_true-termination.i [2018-04-11 09:59:59,959 INFO L230 ultiparseSymbolTable]: Global variable declaration of __U_MULTI_fopenbsd_cstpncpy_alloca_true_valid_memsafety_true_termination_i____ino64_t in openbsd_cstpncpy-alloca_true-valid-memsafety_true-termination.i [2018-04-11 09:59:59,959 INFO L230 ultiparseSymbolTable]: Global variable declaration of __U_MULTI_fopenbsd_cstpncpy_alloca_true_valid_memsafety_true_termination_i__clock_t in openbsd_cstpncpy-alloca_true-valid-memsafety_true-termination.i [2018-04-11 09:59:59,959 INFO L230 ultiparseSymbolTable]: Global variable declaration of __U_MULTI_fopenbsd_cstpncpy_alloca_true_valid_memsafety_true_termination_i____syscall_slong_t in openbsd_cstpncpy-alloca_true-valid-memsafety_true-termination.i [2018-04-11 09:59:59,959 INFO L230 ultiparseSymbolTable]: Global variable declaration of __U_MULTI_fopenbsd_cstpncpy_alloca_true_valid_memsafety_true_termination_i____pid_t in openbsd_cstpncpy-alloca_true-valid-memsafety_true-termination.i [2018-04-11 09:59:59,959 INFO L230 ultiparseSymbolTable]: Global variable declaration of __U_MULTI_fopenbsd_cstpncpy_alloca_true_valid_memsafety_true_termination_i____ino_t in openbsd_cstpncpy-alloca_true-valid-memsafety_true-termination.i [2018-04-11 09:59:59,959 INFO L230 ultiparseSymbolTable]: Global variable declaration of __U_MULTI_fopenbsd_cstpncpy_alloca_true_valid_memsafety_true_termination_i____WAIT_STATUS in openbsd_cstpncpy-alloca_true-valid-memsafety_true-termination.i [2018-04-11 09:59:59,959 INFO L230 ultiparseSymbolTable]: Global variable declaration of __U_MULTI_fopenbsd_cstpncpy_alloca_true_valid_memsafety_true_termination_i____int16_t in openbsd_cstpncpy-alloca_true-valid-memsafety_true-termination.i [2018-04-11 09:59:59,959 INFO L230 ultiparseSymbolTable]: Global variable declaration of __U_MULTI_fopenbsd_cstpncpy_alloca_true_valid_memsafety_true_termination_i____loff_t in openbsd_cstpncpy-alloca_true-valid-memsafety_true-termination.i [2018-04-11 09:59:59,959 INFO L230 ultiparseSymbolTable]: Global variable declaration of __U_MULTI_fopenbsd_cstpncpy_alloca_true_valid_memsafety_true_termination_i____u_long in openbsd_cstpncpy-alloca_true-valid-memsafety_true-termination.i [2018-04-11 09:59:59,959 INFO L230 ultiparseSymbolTable]: Global variable declaration of __U_MULTI_fopenbsd_cstpncpy_alloca_true_valid_memsafety_true_termination_i__pthread_cond_t in openbsd_cstpncpy-alloca_true-valid-memsafety_true-termination.i [2018-04-11 09:59:59,959 INFO L230 ultiparseSymbolTable]: Global variable declaration of __U_MULTI_fopenbsd_cstpncpy_alloca_true_valid_memsafety_true_termination_i____blkcnt_t in openbsd_cstpncpy-alloca_true-valid-memsafety_true-termination.i [2018-04-11 09:59:59,960 INFO L230 ultiparseSymbolTable]: Global variable declaration of __U_MULTI_fopenbsd_cstpncpy_alloca_true_valid_memsafety_true_termination_i__fsid_t in openbsd_cstpncpy-alloca_true-valid-memsafety_true-termination.i [2018-04-11 09:59:59,960 INFO L230 ultiparseSymbolTable]: Global variable declaration of __U_MULTI_fopenbsd_cstpncpy_alloca_true_valid_memsafety_true_termination_i__sigset_t in openbsd_cstpncpy-alloca_true-valid-memsafety_true-termination.i [2018-04-11 09:59:59,960 INFO L230 ultiparseSymbolTable]: Global variable declaration of __U_MULTI_fopenbsd_cstpncpy_alloca_true_valid_memsafety_true_termination_i__clockid_t in openbsd_cstpncpy-alloca_true-valid-memsafety_true-termination.i [2018-04-11 09:59:59,960 INFO L230 ultiparseSymbolTable]: Global variable declaration of __U_MULTI_fopenbsd_cstpncpy_alloca_true_valid_memsafety_true_termination_i__pthread_spinlock_t in openbsd_cstpncpy-alloca_true-valid-memsafety_true-termination.i [2018-04-11 09:59:59,960 INFO L230 ultiparseSymbolTable]: Global variable declaration of __U_MULTI_fopenbsd_cstpncpy_alloca_true_valid_memsafety_true_termination_i__u_int32_t in openbsd_cstpncpy-alloca_true-valid-memsafety_true-termination.i [2018-04-11 09:59:59,960 INFO L230 ultiparseSymbolTable]: Global variable declaration of __U_MULTI_fopenbsd_cstpncpy_alloca_true_valid_memsafety_true_termination_i____sigset_t in openbsd_cstpncpy-alloca_true-valid-memsafety_true-termination.i [2018-04-11 09:59:59,960 INFO L230 ultiparseSymbolTable]: Global variable declaration of __U_MULTI_fopenbsd_cstpncpy_alloca_true_valid_memsafety_true_termination_i__suseconds_t in openbsd_cstpncpy-alloca_true-valid-memsafety_true-termination.i [2018-04-11 09:59:59,960 INFO L230 ultiparseSymbolTable]: Global variable declaration of __U_MULTI_fopenbsd_cstpncpy_alloca_true_valid_memsafety_true_termination_i__fd_mask in openbsd_cstpncpy-alloca_true-valid-memsafety_true-termination.i [2018-04-11 09:59:59,960 INFO L230 ultiparseSymbolTable]: Global variable declaration of __U_MULTI_fopenbsd_cstpncpy_alloca_true_valid_memsafety_true_termination_i____caddr_t in openbsd_cstpncpy-alloca_true-valid-memsafety_true-termination.i [2018-04-11 09:59:59,960 INFO L230 ultiparseSymbolTable]: Global variable declaration of __U_MULTI_fopenbsd_cstpncpy_alloca_true_valid_memsafety_true_termination_i__uint in openbsd_cstpncpy-alloca_true-valid-memsafety_true-termination.i [2018-04-11 09:59:59,961 INFO L230 ultiparseSymbolTable]: Global variable declaration of __U_MULTI_fopenbsd_cstpncpy_alloca_true_valid_memsafety_true_termination_i__u_long in openbsd_cstpncpy-alloca_true-valid-memsafety_true-termination.i [2018-04-11 09:59:59,961 INFO L230 ultiparseSymbolTable]: Global variable declaration of __U_MULTI_fopenbsd_cstpncpy_alloca_true_valid_memsafety_true_termination_i__ulong in openbsd_cstpncpy-alloca_true-valid-memsafety_true-termination.i [2018-04-11 09:59:59,961 INFO L230 ultiparseSymbolTable]: Global variable declaration of __U_MULTI_fopenbsd_cstpncpy_alloca_true_valid_memsafety_true_termination_i__pthread_rwlockattr_t in openbsd_cstpncpy-alloca_true-valid-memsafety_true-termination.i [2018-04-11 09:59:59,961 INFO L230 ultiparseSymbolTable]: Global variable declaration of __U_MULTI_fopenbsd_cstpncpy_alloca_true_valid_memsafety_true_termination_i__nlink_t in openbsd_cstpncpy-alloca_true-valid-memsafety_true-termination.i [2018-04-11 09:59:59,961 INFO L230 ultiparseSymbolTable]: Global variable declaration of __U_MULTI_fopenbsd_cstpncpy_alloca_true_valid_memsafety_true_termination_i____qaddr_t in openbsd_cstpncpy-alloca_true-valid-memsafety_true-termination.i [2018-04-11 09:59:59,961 INFO L230 ultiparseSymbolTable]: Global variable declaration of __U_MULTI_fopenbsd_cstpncpy_alloca_true_valid_memsafety_true_termination_i____blksize_t in openbsd_cstpncpy-alloca_true-valid-memsafety_true-termination.i [2018-04-11 09:59:59,961 INFO L230 ultiparseSymbolTable]: Global variable declaration of __U_MULTI_fopenbsd_cstpncpy_alloca_true_valid_memsafety_true_termination_i__fd_set in openbsd_cstpncpy-alloca_true-valid-memsafety_true-termination.i [2018-04-11 09:59:59,961 INFO L230 ultiparseSymbolTable]: Global variable declaration of __U_MULTI_fopenbsd_cstpncpy_alloca_true_valid_memsafety_true_termination_i__pthread_rwlock_t in openbsd_cstpncpy-alloca_true-valid-memsafety_true-termination.i [2018-04-11 09:59:59,961 INFO L230 ultiparseSymbolTable]: Global variable declaration of __U_MULTI_fopenbsd_cstpncpy_alloca_true_valid_memsafety_true_termination_i__pthread_key_t in openbsd_cstpncpy-alloca_true-valid-memsafety_true-termination.i [2018-04-11 09:59:59,961 INFO L230 ultiparseSymbolTable]: Global variable declaration of __U_MULTI_fopenbsd_cstpncpy_alloca_true_valid_memsafety_true_termination_i____rlim64_t in openbsd_cstpncpy-alloca_true-valid-memsafety_true-termination.i [2018-04-11 09:59:59,962 INFO L230 ultiparseSymbolTable]: Global variable declaration of __U_MULTI_fopenbsd_cstpncpy_alloca_true_valid_memsafety_true_termination_i____dev_t in openbsd_cstpncpy-alloca_true-valid-memsafety_true-termination.i [2018-04-11 09:59:59,962 INFO L230 ultiparseSymbolTable]: Global variable declaration of __U_MULTI_fopenbsd_cstpncpy_alloca_true_valid_memsafety_true_termination_i____fsblkcnt_t in openbsd_cstpncpy-alloca_true-valid-memsafety_true-termination.i [2018-04-11 09:59:59,962 INFO L230 ultiparseSymbolTable]: Global variable declaration of __U_MULTI_fopenbsd_cstpncpy_alloca_true_valid_memsafety_true_termination_i__dev_t in openbsd_cstpncpy-alloca_true-valid-memsafety_true-termination.i [2018-04-11 09:59:59,962 INFO L230 ultiparseSymbolTable]: Global variable declaration of __U_MULTI_fopenbsd_cstpncpy_alloca_true_valid_memsafety_true_termination_i__id_t in openbsd_cstpncpy-alloca_true-valid-memsafety_true-termination.i [2018-04-11 09:59:59,962 INFO L230 ultiparseSymbolTable]: Global variable declaration of __U_MULTI_fopenbsd_cstpncpy_alloca_true_valid_memsafety_true_termination_i__pthread_condattr_t in openbsd_cstpncpy-alloca_true-valid-memsafety_true-termination.i [2018-04-11 09:59:59,962 INFO L230 ultiparseSymbolTable]: Global variable declaration of __U_MULTI_fopenbsd_cstpncpy_alloca_true_valid_memsafety_true_termination_i____u_int in openbsd_cstpncpy-alloca_true-valid-memsafety_true-termination.i [2018-04-11 09:59:59,962 INFO L230 ultiparseSymbolTable]: Global variable declaration of __U_MULTI_fopenbsd_cstpncpy_alloca_true_valid_memsafety_true_termination_i__time_t in openbsd_cstpncpy-alloca_true-valid-memsafety_true-termination.i [2018-04-11 09:59:59,962 INFO L230 ultiparseSymbolTable]: Global variable declaration of __U_MULTI_fopenbsd_cstpncpy_alloca_true_valid_memsafety_true_termination_i____clock_t in openbsd_cstpncpy-alloca_true-valid-memsafety_true-termination.i [2018-04-11 09:59:59,962 INFO L230 ultiparseSymbolTable]: Global variable declaration of __U_MULTI_fopenbsd_cstpncpy_alloca_true_valid_memsafety_true_termination_i__pthread_barrierattr_t in openbsd_cstpncpy-alloca_true-valid-memsafety_true-termination.i [2018-04-11 09:59:59,962 INFO L230 ultiparseSymbolTable]: Global variable declaration of __U_MULTI_fopenbsd_cstpncpy_alloca_true_valid_memsafety_true_termination_i__register_t in openbsd_cstpncpy-alloca_true-valid-memsafety_true-termination.i [2018-04-11 09:59:59,962 INFO L230 ultiparseSymbolTable]: Global variable declaration of __U_MULTI_fopenbsd_cstpncpy_alloca_true_valid_memsafety_true_termination_i__int64_t in openbsd_cstpncpy-alloca_true-valid-memsafety_true-termination.i [2018-04-11 09:59:59,963 INFO L230 ultiparseSymbolTable]: Global variable declaration of __U_MULTI_fopenbsd_cstpncpy_alloca_true_valid_memsafety_true_termination_i____daddr_t in openbsd_cstpncpy-alloca_true-valid-memsafety_true-termination.i [2018-04-11 09:59:59,963 INFO L230 ultiparseSymbolTable]: Global variable declaration of __U_MULTI_fopenbsd_cstpncpy_alloca_true_valid_memsafety_true_termination_i____fsfilcnt_t in openbsd_cstpncpy-alloca_true-valid-memsafety_true-termination.i [2018-04-11 09:59:59,963 INFO L230 ultiparseSymbolTable]: Global variable declaration of __U_MULTI_fopenbsd_cstpncpy_alloca_true_valid_memsafety_true_termination_i__u_quad_t in openbsd_cstpncpy-alloca_true-valid-memsafety_true-termination.i [2018-04-11 09:59:59,963 INFO L230 ultiparseSymbolTable]: Global variable declaration of __U_MULTI_fopenbsd_cstpncpy_alloca_true_valid_memsafety_true_termination_i__ushort in openbsd_cstpncpy-alloca_true-valid-memsafety_true-termination.i [2018-04-11 09:59:59,963 INFO L230 ultiparseSymbolTable]: Global variable declaration of __U_MULTI_fopenbsd_cstpncpy_alloca_true_valid_memsafety_true_termination_i__ldiv_t in openbsd_cstpncpy-alloca_true-valid-memsafety_true-termination.i [2018-04-11 09:59:59,963 INFO L230 ultiparseSymbolTable]: Global variable declaration of __U_MULTI_fopenbsd_cstpncpy_alloca_true_valid_memsafety_true_termination_i____useconds_t in openbsd_cstpncpy-alloca_true-valid-memsafety_true-termination.i [2018-04-11 09:59:59,963 INFO L230 ultiparseSymbolTable]: Global variable declaration of __U_MULTI_fopenbsd_cstpncpy_alloca_true_valid_memsafety_true_termination_i__loff_t in openbsd_cstpncpy-alloca_true-valid-memsafety_true-termination.i [2018-04-11 09:59:59,963 INFO L230 ultiparseSymbolTable]: Global variable declaration of __U_MULTI_fopenbsd_cstpncpy_alloca_true_valid_memsafety_true_termination_i__pthread_mutex_t in openbsd_cstpncpy-alloca_true-valid-memsafety_true-termination.i [2018-04-11 09:59:59,963 INFO L230 ultiparseSymbolTable]: Global variable declaration of __U_MULTI_fopenbsd_cstpncpy_alloca_true_valid_memsafety_true_termination_i____time_t in openbsd_cstpncpy-alloca_true-valid-memsafety_true-termination.i [2018-04-11 09:59:59,964 INFO L230 ultiparseSymbolTable]: Global variable declaration of __U_MULTI_fopenbsd_cstpncpy_alloca_true_valid_memsafety_true_termination_i____fsfilcnt64_t in openbsd_cstpncpy-alloca_true-valid-memsafety_true-termination.i [2018-04-11 09:59:59,964 INFO L230 ultiparseSymbolTable]: Global variable declaration of __U_MULTI_fopenbsd_cstpncpy_alloca_true_valid_memsafety_true_termination_i____uint8_t in openbsd_cstpncpy-alloca_true-valid-memsafety_true-termination.i [2018-04-11 09:59:59,964 INFO L230 ultiparseSymbolTable]: Global variable declaration of __U_MULTI_fopenbsd_cstpncpy_alloca_true_valid_memsafety_true_termination_i____key_t in openbsd_cstpncpy-alloca_true-valid-memsafety_true-termination.i [2018-04-11 09:59:59,964 INFO L230 ultiparseSymbolTable]: Global variable declaration of __U_MULTI_fopenbsd_cstpncpy_alloca_true_valid_memsafety_true_termination_i__ino_t in openbsd_cstpncpy-alloca_true-valid-memsafety_true-termination.i [2018-04-11 09:59:59,964 INFO L230 ultiparseSymbolTable]: Global variable declaration of __U_MULTI_fopenbsd_cstpncpy_alloca_true_valid_memsafety_true_termination_i____int64_t in openbsd_cstpncpy-alloca_true-valid-memsafety_true-termination.i [2018-04-11 09:59:59,964 INFO L230 ultiparseSymbolTable]: Global variable declaration of __U_MULTI_fopenbsd_cstpncpy_alloca_true_valid_memsafety_true_termination_i____ssize_t in openbsd_cstpncpy-alloca_true-valid-memsafety_true-termination.i [2018-04-11 09:59:59,964 INFO L230 ultiparseSymbolTable]: Global variable declaration of __U_MULTI_fopenbsd_cstpncpy_alloca_true_valid_memsafety_true_termination_i____mode_t in openbsd_cstpncpy-alloca_true-valid-memsafety_true-termination.i [2018-04-11 09:59:59,964 INFO L230 ultiparseSymbolTable]: Global variable declaration of __U_MULTI_fopenbsd_cstpncpy_alloca_true_valid_memsafety_true_termination_i__fsfilcnt_t in openbsd_cstpncpy-alloca_true-valid-memsafety_true-termination.i [2018-04-11 09:59:59,964 INFO L230 ultiparseSymbolTable]: Global variable declaration of __U_MULTI_fopenbsd_cstpncpy_alloca_true_valid_memsafety_true_termination_i__int8_t in openbsd_cstpncpy-alloca_true-valid-memsafety_true-termination.i [2018-04-11 09:59:59,964 INFO L230 ultiparseSymbolTable]: Global variable declaration of __U_MULTI_fopenbsd_cstpncpy_alloca_true_valid_memsafety_true_termination_i__u_int64_t in openbsd_cstpncpy-alloca_true-valid-memsafety_true-termination.i [2018-04-11 09:59:59,964 INFO L230 ultiparseSymbolTable]: Global variable declaration of __U_MULTI_fopenbsd_cstpncpy_alloca_true_valid_memsafety_true_termination_i__int32_t in openbsd_cstpncpy-alloca_true-valid-memsafety_true-termination.i [2018-04-11 09:59:59,965 INFO L230 ultiparseSymbolTable]: Global variable declaration of __U_MULTI_fopenbsd_cstpncpy_alloca_true_valid_memsafety_true_termination_i____socklen_t in openbsd_cstpncpy-alloca_true-valid-memsafety_true-termination.i [2018-04-11 09:59:59,965 INFO L230 ultiparseSymbolTable]: Global variable declaration of __U_MULTI_fopenbsd_cstpncpy_alloca_true_valid_memsafety_true_termination_i__pthread_mutexattr_t in openbsd_cstpncpy-alloca_true-valid-memsafety_true-termination.i [2018-04-11 09:59:59,965 INFO L230 ultiparseSymbolTable]: Global variable declaration of __U_MULTI_fopenbsd_cstpncpy_alloca_true_valid_memsafety_true_termination_i__size_t in openbsd_cstpncpy-alloca_true-valid-memsafety_true-termination.i [2018-04-11 09:59:59,965 INFO L230 ultiparseSymbolTable]: Global variable declaration of __U_MULTI_fopenbsd_cstpncpy_alloca_true_valid_memsafety_true_termination_i__off_t in openbsd_cstpncpy-alloca_true-valid-memsafety_true-termination.i [2018-04-11 09:59:59,965 INFO L230 ultiparseSymbolTable]: Global variable declaration of __U_MULTI_fopenbsd_cstpncpy_alloca_true_valid_memsafety_true_termination_i____timer_t in openbsd_cstpncpy-alloca_true-valid-memsafety_true-termination.i [2018-04-11 09:59:59,965 INFO L230 ultiparseSymbolTable]: Global variable declaration of __U_MULTI_fopenbsd_cstpncpy_alloca_true_valid_memsafety_true_termination_i____intptr_t in openbsd_cstpncpy-alloca_true-valid-memsafety_true-termination.i [2018-04-11 09:59:59,965 INFO L230 ultiparseSymbolTable]: Global variable declaration of __U_MULTI_fopenbsd_cstpncpy_alloca_true_valid_memsafety_true_termination_i__timer_t in openbsd_cstpncpy-alloca_true-valid-memsafety_true-termination.i [2018-04-11 09:59:59,965 INFO L230 ultiparseSymbolTable]: Global variable declaration of __U_MULTI_fopenbsd_cstpncpy_alloca_true_valid_memsafety_true_termination_i__caddr_t in openbsd_cstpncpy-alloca_true-valid-memsafety_true-termination.i [2018-04-11 09:59:59,965 INFO L230 ultiparseSymbolTable]: Global variable declaration of __U_MULTI_fopenbsd_cstpncpy_alloca_true_valid_memsafety_true_termination_i__mode_t in openbsd_cstpncpy-alloca_true-valid-memsafety_true-termination.i [2018-04-11 09:59:59,965 INFO L230 ultiparseSymbolTable]: Global variable declaration of __U_MULTI_fopenbsd_cstpncpy_alloca_true_valid_memsafety_true_termination_i____int8_t in openbsd_cstpncpy-alloca_true-valid-memsafety_true-termination.i [2018-04-11 09:59:59,965 INFO L230 ultiparseSymbolTable]: Global variable declaration of __U_MULTI_fopenbsd_cstpncpy_alloca_true_valid_memsafety_true_termination_i____u_short in openbsd_cstpncpy-alloca_true-valid-memsafety_true-termination.i [2018-04-11 09:59:59,966 INFO L230 ultiparseSymbolTable]: Global variable declaration of __U_MULTI_fopenbsd_cstpncpy_alloca_true_valid_memsafety_true_termination_i____nlink_t in openbsd_cstpncpy-alloca_true-valid-memsafety_true-termination.i [2018-04-11 09:59:59,966 INFO L230 ultiparseSymbolTable]: Global variable declaration of __U_MULTI_fopenbsd_cstpncpy_alloca_true_valid_memsafety_true_termination_i__key_t in openbsd_cstpncpy-alloca_true-valid-memsafety_true-termination.i [2018-04-11 09:59:59,966 INFO L230 ultiparseSymbolTable]: Global variable declaration of __U_MULTI_fopenbsd_cstpncpy_alloca_true_valid_memsafety_true_termination_i__gid_t in openbsd_cstpncpy-alloca_true-valid-memsafety_true-termination.i [2018-04-11 09:59:59,966 INFO L230 ultiparseSymbolTable]: Global variable declaration of __U_MULTI_fopenbsd_cstpncpy_alloca_true_valid_memsafety_true_termination_i____blkcnt64_t in openbsd_cstpncpy-alloca_true-valid-memsafety_true-termination.i [2018-04-11 09:59:59,966 INFO L230 ultiparseSymbolTable]: Global variable declaration of __U_MULTI_fopenbsd_cstpncpy_alloca_true_valid_memsafety_true_termination_i__u_short in openbsd_cstpncpy-alloca_true-valid-memsafety_true-termination.i [2018-04-11 09:59:59,966 INFO L230 ultiparseSymbolTable]: Global variable declaration of __U_MULTI_fopenbsd_cstpncpy_alloca_true_valid_memsafety_true_termination_i____uint64_t in openbsd_cstpncpy-alloca_true-valid-memsafety_true-termination.i [2018-04-11 09:59:59,966 INFO L230 ultiparseSymbolTable]: Global variable declaration of __U_MULTI_fopenbsd_cstpncpy_alloca_true_valid_memsafety_true_termination_i__pid_t in openbsd_cstpncpy-alloca_true-valid-memsafety_true-termination.i [2018-04-11 09:59:59,966 INFO L230 ultiparseSymbolTable]: Global variable declaration of __U_MULTI_fopenbsd_cstpncpy_alloca_true_valid_memsafety_true_termination_i____uid_t in openbsd_cstpncpy-alloca_true-valid-memsafety_true-termination.i [2018-04-11 09:59:59,966 INFO L230 ultiparseSymbolTable]: Global variable declaration of __U_MULTI_fopenbsd_cstpncpy_alloca_true_valid_memsafety_true_termination_i__ssize_t in openbsd_cstpncpy-alloca_true-valid-memsafety_true-termination.i [2018-04-11 09:59:59,966 INFO L230 ultiparseSymbolTable]: Global variable declaration of __U_MULTI_fopenbsd_cstpncpy_alloca_true_valid_memsafety_true_termination_i____fsword_t in openbsd_cstpncpy-alloca_true-valid-memsafety_true-termination.i [2018-04-11 09:59:59,966 INFO L230 ultiparseSymbolTable]: Global variable declaration of __U_MULTI_fopenbsd_cstpncpy_alloca_true_valid_memsafety_true_termination_i____fd_mask in openbsd_cstpncpy-alloca_true-valid-memsafety_true-termination.i [2018-04-11 09:59:59,967 INFO L230 ultiparseSymbolTable]: Global variable declaration of __U_MULTI_fopenbsd_cstpncpy_alloca_true_valid_memsafety_true_termination_i__blksize_t in openbsd_cstpncpy-alloca_true-valid-memsafety_true-termination.i [2018-04-11 09:59:59,967 INFO L230 ultiparseSymbolTable]: Global variable declaration of __U_MULTI_fopenbsd_cstpncpy_alloca_true_valid_memsafety_true_termination_i____u_char in openbsd_cstpncpy-alloca_true-valid-memsafety_true-termination.i [2018-04-11 09:59:59,967 INFO L230 ultiparseSymbolTable]: Global variable declaration of __U_MULTI_fopenbsd_cstpncpy_alloca_true_valid_memsafety_true_termination_i__wchar_t in openbsd_cstpncpy-alloca_true-valid-memsafety_true-termination.i [2018-04-11 09:59:59,967 INFO L230 ultiparseSymbolTable]: Global variable declaration of __U_MULTI_fopenbsd_cstpncpy_alloca_true_valid_memsafety_true_termination_i__uid_t in openbsd_cstpncpy-alloca_true-valid-memsafety_true-termination.i [2018-04-11 09:59:59,967 INFO L230 ultiparseSymbolTable]: Global variable declaration of __U_MULTI_fopenbsd_cstpncpy_alloca_true_valid_memsafety_true_termination_i__pthread_attr_t in openbsd_cstpncpy-alloca_true-valid-memsafety_true-termination.i [2018-04-11 09:59:59,967 INFO L230 ultiparseSymbolTable]: Global variable declaration of __U_MULTI_fopenbsd_cstpncpy_alloca_true_valid_memsafety_true_termination_i__lldiv_t in openbsd_cstpncpy-alloca_true-valid-memsafety_true-termination.i [2018-04-11 09:59:59,967 INFO L230 ultiparseSymbolTable]: Global variable declaration of __U_MULTI_fopenbsd_cstpncpy_alloca_true_valid_memsafety_true_termination_i____sig_atomic_t in openbsd_cstpncpy-alloca_true-valid-memsafety_true-termination.i [2018-04-11 09:59:59,967 INFO L230 ultiparseSymbolTable]: Global variable declaration of __U_MULTI_fopenbsd_cstpncpy_alloca_true_valid_memsafety_true_termination_i__int16_t in openbsd_cstpncpy-alloca_true-valid-memsafety_true-termination.i [2018-04-11 09:59:59,967 INFO L230 ultiparseSymbolTable]: Global variable declaration of __U_MULTI_fopenbsd_cstpncpy_alloca_true_valid_memsafety_true_termination_i__u_int8_t in openbsd_cstpncpy-alloca_true-valid-memsafety_true-termination.i [2018-04-11 09:59:59,967 INFO L230 ultiparseSymbolTable]: Global variable declaration of __U_MULTI_fopenbsd_cstpncpy_alloca_true_valid_memsafety_true_termination_i__fsblkcnt_t in openbsd_cstpncpy-alloca_true-valid-memsafety_true-termination.i [2018-04-11 09:59:59,967 INFO L230 ultiparseSymbolTable]: Global variable declaration of __U_MULTI_fopenbsd_cstpncpy_alloca_true_valid_memsafety_true_termination_i__div_t in openbsd_cstpncpy-alloca_true-valid-memsafety_true-termination.i [2018-04-11 09:59:59,967 INFO L230 ultiparseSymbolTable]: Global variable declaration of __U_MULTI_fopenbsd_cstpncpy_alloca_true_valid_memsafety_true_termination_i____uint32_t in openbsd_cstpncpy-alloca_true-valid-memsafety_true-termination.i [2018-04-11 09:59:59,968 INFO L230 ultiparseSymbolTable]: Global variable declaration of __U_MULTI_fopenbsd_cstpncpy_alloca_true_valid_memsafety_true_termination_i____id_t in openbsd_cstpncpy-alloca_true-valid-memsafety_true-termination.i [2018-04-11 09:59:59,968 INFO L230 ultiparseSymbolTable]: Global variable declaration of __U_MULTI_fopenbsd_cstpncpy_alloca_true_valid_memsafety_true_termination_i__pthread_once_t in openbsd_cstpncpy-alloca_true-valid-memsafety_true-termination.i [2018-04-11 09:59:59,968 INFO L230 ultiparseSymbolTable]: Global variable declaration of __U_MULTI_fopenbsd_cstpncpy_alloca_true_valid_memsafety_true_termination_i____int32_t in openbsd_cstpncpy-alloca_true-valid-memsafety_true-termination.i [2018-04-11 09:59:59,968 INFO L230 ultiparseSymbolTable]: Global variable declaration of __U_MULTI_fopenbsd_cstpncpy_alloca_true_valid_memsafety_true_termination_i__pthread_t in openbsd_cstpncpy-alloca_true-valid-memsafety_true-termination.i [2018-04-11 09:59:59,968 INFO L230 ultiparseSymbolTable]: Global variable declaration of __U_MULTI_fopenbsd_cstpncpy_alloca_true_valid_memsafety_true_termination_i____syscall_ulong_t in openbsd_cstpncpy-alloca_true-valid-memsafety_true-termination.i [2018-04-11 09:59:59,968 INFO L230 ultiparseSymbolTable]: Global variable declaration of __U_MULTI_fopenbsd_cstpncpy_alloca_true_valid_memsafety_true_termination_i__u_int in openbsd_cstpncpy-alloca_true-valid-memsafety_true-termination.i [2018-04-11 09:59:59,968 INFO L230 ultiparseSymbolTable]: Global variable declaration of __U_MULTI_fopenbsd_cstpncpy_alloca_true_valid_memsafety_true_termination_i__u_int16_t in openbsd_cstpncpy-alloca_true-valid-memsafety_true-termination.i [2018-04-11 09:59:59,968 INFO L230 ultiparseSymbolTable]: Global variable declaration of __U_MULTI_fopenbsd_cstpncpy_alloca_true_valid_memsafety_true_termination_i__u_char in openbsd_cstpncpy-alloca_true-valid-memsafety_true-termination.i [2018-04-11 09:59:59,968 INFO L230 ultiparseSymbolTable]: Global variable declaration of __U_MULTI_fopenbsd_cstpncpy_alloca_true_valid_memsafety_true_termination_i____rlim_t in openbsd_cstpncpy-alloca_true-valid-memsafety_true-termination.i [2018-04-11 09:59:59,968 INFO L230 ultiparseSymbolTable]: Global variable declaration of __U_MULTI_fopenbsd_cstpncpy_alloca_true_valid_memsafety_true_termination_i__quad_t in openbsd_cstpncpy-alloca_true-valid-memsafety_true-termination.i [2018-04-11 09:59:59,968 INFO L230 ultiparseSymbolTable]: Global variable declaration of __U_MULTI_fopenbsd_cstpncpy_alloca_true_valid_memsafety_true_termination_i__blkcnt_t in openbsd_cstpncpy-alloca_true-valid-memsafety_true-termination.i [2018-04-11 09:59:59,968 INFO L230 ultiparseSymbolTable]: Global variable declaration of __U_MULTI_fopenbsd_cstpncpy_alloca_true_valid_memsafety_true_termination_i____fsblkcnt64_t in openbsd_cstpncpy-alloca_true-valid-memsafety_true-termination.i [2018-04-11 09:59:59,969 INFO L230 ultiparseSymbolTable]: Global variable declaration of __U_MULTI_fopenbsd_cstpncpy_alloca_true_valid_memsafety_true_termination_i____clockid_t in openbsd_cstpncpy-alloca_true-valid-memsafety_true-termination.i [2018-04-11 09:59:59,969 INFO L230 ultiparseSymbolTable]: Global variable declaration of __U_MULTI_fopenbsd_cstpncpy_alloca_true_valid_memsafety_true_termination_i____pthread_list_t in openbsd_cstpncpy-alloca_true-valid-memsafety_true-termination.i [2018-04-11 09:59:59,969 INFO L230 ultiparseSymbolTable]: Global variable declaration of __U_MULTI_fopenbsd_cstpncpy_alloca_true_valid_memsafety_true_termination_i____off64_t in openbsd_cstpncpy-alloca_true-valid-memsafety_true-termination.i [2018-04-11 09:59:59,969 INFO L230 ultiparseSymbolTable]: Global variable declaration of __U_MULTI_fopenbsd_cstpncpy_alloca_true_valid_memsafety_true_termination_i____suseconds_t in openbsd_cstpncpy-alloca_true-valid-memsafety_true-termination.i [2018-04-11 09:59:59,969 INFO L230 ultiparseSymbolTable]: Global variable declaration of __U_MULTI_fopenbsd_cstpncpy_alloca_true_valid_memsafety_true_termination_i__pthread_barrier_t in openbsd_cstpncpy-alloca_true-valid-memsafety_true-termination.i [2018-04-11 09:59:59,969 INFO L230 ultiparseSymbolTable]: Global variable declaration of __U_MULTI_fopenbsd_cstpncpy_alloca_true_valid_memsafety_true_termination_i____u_quad_t in openbsd_cstpncpy-alloca_true-valid-memsafety_true-termination.i [2018-04-11 09:59:59,987 INFO L330 CDTParser]: Deleted temporary CDT project at /home/ultimate/work/ultimate/releaseScripts/default/UAutomizer-linux/data/FLAG1d2a57af0 [2018-04-11 09:59:59,990 INFO L304 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2018-04-11 09:59:59,991 INFO L131 ToolchainWalker]: Walking toolchain with 4 elements. [2018-04-11 09:59:59,991 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2018-04-11 09:59:59,991 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2018-04-11 09:59:59,997 INFO L276 PluginConnector]: CACSL2BoogieTranslator initialized [2018-04-11 09:59:59,998 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 11.04 09:59:59" (1/1) ... [2018-04-11 10:00:00,001 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@1dfbaf85 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 11.04 09:59:59, skipping insertion in model container [2018-04-11 10:00:00,001 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 11.04 09:59:59" (1/1) ... [2018-04-11 10:00:00,018 INFO L167 Dispatcher]: Using SV-COMP mode [2018-04-11 10:00:00,045 INFO L167 Dispatcher]: Using SV-COMP mode [2018-04-11 10:00:00,186 INFO L175 PostProcessor]: Settings: Checked method=main [2018-04-11 10:00:00,232 INFO L175 PostProcessor]: Settings: Checked method=main [2018-04-11 10:00:00,239 INFO L100 SccComputation]: Graph consists of 0 InCaSumBalls and 114 non ball SCCs. Number of states in SCCs 114. [2018-04-11 10:00:00,285 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 11.04 10:00:00 WrapperNode [2018-04-11 10:00:00,285 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2018-04-11 10:00:00,286 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2018-04-11 10:00:00,286 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2018-04-11 10:00:00,286 INFO L276 PluginConnector]: Boogie Preprocessor initialized [2018-04-11 10:00:00,297 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 11.04 10:00:00" (1/1) ... [2018-04-11 10:00:00,297 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 11.04 10:00:00" (1/1) ... [2018-04-11 10:00:00,311 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 11.04 10:00:00" (1/1) ... [2018-04-11 10:00:00,311 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 11.04 10:00:00" (1/1) ... [2018-04-11 10:00:00,321 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 11.04 10:00:00" (1/1) ... [2018-04-11 10:00:00,325 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 11.04 10:00:00" (1/1) ... [2018-04-11 10:00:00,328 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 11.04 10:00:00" (1/1) ... [2018-04-11 10:00:00,331 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2018-04-11 10:00:00,332 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2018-04-11 10:00:00,332 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2018-04-11 10:00:00,332 INFO L276 PluginConnector]: RCFGBuilder initialized [2018-04-11 10:00:00,333 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 11.04 10:00:00" (1/1) ... No working directory specified, using /home/ultimate/work/ultimate/releaseScripts/default/UAutomizer-linux/z3 Starting monitored process 1 with z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 1 with z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2018-04-11 10:00:00,439 INFO L136 BoogieDeclarations]: Found implementation of procedure ULTIMATE.init [2018-04-11 10:00:00,440 INFO L136 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2018-04-11 10:00:00,440 INFO L136 BoogieDeclarations]: Found implementation of procedure __U_MULTI_fopenbsd_cstpncpy_alloca_true_valid_memsafety_true_termination_i____bswap_32 [2018-04-11 10:00:00,440 INFO L136 BoogieDeclarations]: Found implementation of procedure __U_MULTI_fopenbsd_cstpncpy_alloca_true_valid_memsafety_true_termination_i____bswap_64 [2018-04-11 10:00:00,440 INFO L136 BoogieDeclarations]: Found implementation of procedure __U_MULTI_fopenbsd_cstpncpy_alloca_true_valid_memsafety_true_termination_i__cstpncpy [2018-04-11 10:00:00,440 INFO L136 BoogieDeclarations]: Found implementation of procedure main [2018-04-11 10:00:00,440 INFO L128 BoogieDeclarations]: Found specification of procedure __U_MULTI_fopenbsd_cstpncpy_alloca_true_valid_memsafety_true_termination_i____bswap_32 [2018-04-11 10:00:00,440 INFO L128 BoogieDeclarations]: Found specification of procedure __U_MULTI_fopenbsd_cstpncpy_alloca_true_valid_memsafety_true_termination_i____bswap_64 [2018-04-11 10:00:00,440 INFO L128 BoogieDeclarations]: Found specification of procedure __ctype_get_mb_cur_max [2018-04-11 10:00:00,440 INFO L128 BoogieDeclarations]: Found specification of procedure atof [2018-04-11 10:00:00,440 INFO L128 BoogieDeclarations]: Found specification of procedure atoi [2018-04-11 10:00:00,441 INFO L128 BoogieDeclarations]: Found specification of procedure atol [2018-04-11 10:00:00,441 INFO L128 BoogieDeclarations]: Found specification of procedure atoll [2018-04-11 10:00:00,441 INFO L128 BoogieDeclarations]: Found specification of procedure strtod [2018-04-11 10:00:00,441 INFO L128 BoogieDeclarations]: Found specification of procedure strtof [2018-04-11 10:00:00,441 INFO L128 BoogieDeclarations]: Found specification of procedure strtold [2018-04-11 10:00:00,441 INFO L128 BoogieDeclarations]: Found specification of procedure strtol [2018-04-11 10:00:00,441 INFO L128 BoogieDeclarations]: Found specification of procedure strtoul [2018-04-11 10:00:00,441 INFO L128 BoogieDeclarations]: Found specification of procedure strtoq [2018-04-11 10:00:00,441 INFO L128 BoogieDeclarations]: Found specification of procedure strtouq [2018-04-11 10:00:00,441 INFO L128 BoogieDeclarations]: Found specification of procedure strtoll [2018-04-11 10:00:00,441 INFO L128 BoogieDeclarations]: Found specification of procedure strtoull [2018-04-11 10:00:00,441 INFO L128 BoogieDeclarations]: Found specification of procedure l64a [2018-04-11 10:00:00,441 INFO L128 BoogieDeclarations]: Found specification of procedure a64l [2018-04-11 10:00:00,441 INFO L128 BoogieDeclarations]: Found specification of procedure select [2018-04-11 10:00:00,441 INFO L128 BoogieDeclarations]: Found specification of procedure pselect [2018-04-11 10:00:00,441 INFO L128 BoogieDeclarations]: Found specification of procedure gnu_dev_major [2018-04-11 10:00:00,441 INFO L128 BoogieDeclarations]: Found specification of procedure gnu_dev_minor [2018-04-11 10:00:00,441 INFO L128 BoogieDeclarations]: Found specification of procedure gnu_dev_makedev [2018-04-11 10:00:00,442 INFO L128 BoogieDeclarations]: Found specification of procedure random [2018-04-11 10:00:00,442 INFO L128 BoogieDeclarations]: Found specification of procedure srandom [2018-04-11 10:00:00,442 INFO L128 BoogieDeclarations]: Found specification of procedure initstate [2018-04-11 10:00:00,442 INFO L128 BoogieDeclarations]: Found specification of procedure setstate [2018-04-11 10:00:00,442 INFO L128 BoogieDeclarations]: Found specification of procedure random_r [2018-04-11 10:00:00,442 INFO L128 BoogieDeclarations]: Found specification of procedure srandom_r [2018-04-11 10:00:00,442 INFO L128 BoogieDeclarations]: Found specification of procedure initstate_r [2018-04-11 10:00:00,442 INFO L128 BoogieDeclarations]: Found specification of procedure setstate_r [2018-04-11 10:00:00,442 INFO L128 BoogieDeclarations]: Found specification of procedure rand [2018-04-11 10:00:00,442 INFO L128 BoogieDeclarations]: Found specification of procedure srand [2018-04-11 10:00:00,442 INFO L128 BoogieDeclarations]: Found specification of procedure rand_r [2018-04-11 10:00:00,442 INFO L128 BoogieDeclarations]: Found specification of procedure drand48 [2018-04-11 10:00:00,442 INFO L128 BoogieDeclarations]: Found specification of procedure erand48 [2018-04-11 10:00:00,442 INFO L128 BoogieDeclarations]: Found specification of procedure lrand48 [2018-04-11 10:00:00,442 INFO L128 BoogieDeclarations]: Found specification of procedure nrand48 [2018-04-11 10:00:00,442 INFO L128 BoogieDeclarations]: Found specification of procedure mrand48 [2018-04-11 10:00:00,442 INFO L128 BoogieDeclarations]: Found specification of procedure jrand48 [2018-04-11 10:00:00,443 INFO L128 BoogieDeclarations]: Found specification of procedure srand48 [2018-04-11 10:00:00,443 INFO L128 BoogieDeclarations]: Found specification of procedure seed48 [2018-04-11 10:00:00,443 INFO L128 BoogieDeclarations]: Found specification of procedure lcong48 [2018-04-11 10:00:00,443 INFO L128 BoogieDeclarations]: Found specification of procedure drand48_r [2018-04-11 10:00:00,443 INFO L128 BoogieDeclarations]: Found specification of procedure erand48_r [2018-04-11 10:00:00,443 INFO L128 BoogieDeclarations]: Found specification of procedure lrand48_r [2018-04-11 10:00:00,443 INFO L128 BoogieDeclarations]: Found specification of procedure nrand48_r [2018-04-11 10:00:00,443 INFO L128 BoogieDeclarations]: Found specification of procedure mrand48_r [2018-04-11 10:00:00,443 INFO L128 BoogieDeclarations]: Found specification of procedure jrand48_r [2018-04-11 10:00:00,443 INFO L128 BoogieDeclarations]: Found specification of procedure srand48_r [2018-04-11 10:00:00,443 INFO L128 BoogieDeclarations]: Found specification of procedure seed48_r [2018-04-11 10:00:00,443 INFO L128 BoogieDeclarations]: Found specification of procedure lcong48_r [2018-04-11 10:00:00,443 INFO L128 BoogieDeclarations]: Found specification of procedure malloc [2018-04-11 10:00:00,443 INFO L128 BoogieDeclarations]: Found specification of procedure calloc [2018-04-11 10:00:00,443 INFO L128 BoogieDeclarations]: Found specification of procedure realloc [2018-04-11 10:00:00,443 INFO L128 BoogieDeclarations]: Found specification of procedure free [2018-04-11 10:00:00,443 INFO L128 BoogieDeclarations]: Found specification of procedure cfree [2018-04-11 10:00:00,443 INFO L128 BoogieDeclarations]: Found specification of procedure alloca [2018-04-11 10:00:00,443 INFO L128 BoogieDeclarations]: Found specification of procedure valloc [2018-04-11 10:00:00,444 INFO L128 BoogieDeclarations]: Found specification of procedure posix_memalign [2018-04-11 10:00:00,444 INFO L128 BoogieDeclarations]: Found specification of procedure abort [2018-04-11 10:00:00,444 INFO L128 BoogieDeclarations]: Found specification of procedure atexit [2018-04-11 10:00:00,444 INFO L128 BoogieDeclarations]: Found specification of procedure on_exit [2018-04-11 10:00:00,444 INFO L128 BoogieDeclarations]: Found specification of procedure exit [2018-04-11 10:00:00,444 INFO L128 BoogieDeclarations]: Found specification of procedure _Exit [2018-04-11 10:00:00,444 INFO L128 BoogieDeclarations]: Found specification of procedure getenv [2018-04-11 10:00:00,444 INFO L128 BoogieDeclarations]: Found specification of procedure putenv [2018-04-11 10:00:00,444 INFO L128 BoogieDeclarations]: Found specification of procedure setenv [2018-04-11 10:00:00,444 INFO L128 BoogieDeclarations]: Found specification of procedure unsetenv [2018-04-11 10:00:00,444 INFO L128 BoogieDeclarations]: Found specification of procedure clearenv [2018-04-11 10:00:00,444 INFO L128 BoogieDeclarations]: Found specification of procedure mktemp [2018-04-11 10:00:00,444 INFO L128 BoogieDeclarations]: Found specification of procedure mkstemp [2018-04-11 10:00:00,444 INFO L128 BoogieDeclarations]: Found specification of procedure mkstemps [2018-04-11 10:00:00,444 INFO L128 BoogieDeclarations]: Found specification of procedure mkdtemp [2018-04-11 10:00:00,444 INFO L128 BoogieDeclarations]: Found specification of procedure system [2018-04-11 10:00:00,444 INFO L128 BoogieDeclarations]: Found specification of procedure realpath [2018-04-11 10:00:00,444 INFO L128 BoogieDeclarations]: Found specification of procedure bsearch [2018-04-11 10:00:00,445 INFO L128 BoogieDeclarations]: Found specification of procedure qsort [2018-04-11 10:00:00,445 INFO L128 BoogieDeclarations]: Found specification of procedure abs [2018-04-11 10:00:00,445 INFO L128 BoogieDeclarations]: Found specification of procedure labs [2018-04-11 10:00:00,445 INFO L128 BoogieDeclarations]: Found specification of procedure llabs [2018-04-11 10:00:00,445 INFO L128 BoogieDeclarations]: Found specification of procedure div [2018-04-11 10:00:00,445 INFO L128 BoogieDeclarations]: Found specification of procedure ldiv [2018-04-11 10:00:00,445 INFO L128 BoogieDeclarations]: Found specification of procedure lldiv [2018-04-11 10:00:00,445 INFO L128 BoogieDeclarations]: Found specification of procedure ecvt [2018-04-11 10:00:00,445 INFO L128 BoogieDeclarations]: Found specification of procedure fcvt [2018-04-11 10:00:00,445 INFO L128 BoogieDeclarations]: Found specification of procedure gcvt [2018-04-11 10:00:00,445 INFO L128 BoogieDeclarations]: Found specification of procedure qecvt [2018-04-11 10:00:00,445 INFO L128 BoogieDeclarations]: Found specification of procedure qfcvt [2018-04-11 10:00:00,445 INFO L128 BoogieDeclarations]: Found specification of procedure qgcvt [2018-04-11 10:00:00,445 INFO L128 BoogieDeclarations]: Found specification of procedure ecvt_r [2018-04-11 10:00:00,445 INFO L128 BoogieDeclarations]: Found specification of procedure fcvt_r [2018-04-11 10:00:00,445 INFO L128 BoogieDeclarations]: Found specification of procedure qecvt_r [2018-04-11 10:00:00,445 INFO L128 BoogieDeclarations]: Found specification of procedure qfcvt_r [2018-04-11 10:00:00,445 INFO L128 BoogieDeclarations]: Found specification of procedure mblen [2018-04-11 10:00:00,445 INFO L128 BoogieDeclarations]: Found specification of procedure mbtowc [2018-04-11 10:00:00,446 INFO L128 BoogieDeclarations]: Found specification of procedure wctomb [2018-04-11 10:00:00,446 INFO L128 BoogieDeclarations]: Found specification of procedure mbstowcs [2018-04-11 10:00:00,446 INFO L128 BoogieDeclarations]: Found specification of procedure wcstombs [2018-04-11 10:00:00,446 INFO L128 BoogieDeclarations]: Found specification of procedure rpmatch [2018-04-11 10:00:00,446 INFO L128 BoogieDeclarations]: Found specification of procedure getsubopt [2018-04-11 10:00:00,446 INFO L128 BoogieDeclarations]: Found specification of procedure getloadavg [2018-04-11 10:00:00,446 INFO L128 BoogieDeclarations]: Found specification of procedure __VERIFIER_nondet_int [2018-04-11 10:00:00,446 INFO L128 BoogieDeclarations]: Found specification of procedure __U_MULTI_fopenbsd_cstpncpy_alloca_true_valid_memsafety_true_termination_i__cstpncpy [2018-04-11 10:00:00,446 INFO L128 BoogieDeclarations]: Found specification of procedure #Ultimate.alloc [2018-04-11 10:00:00,446 INFO L128 BoogieDeclarations]: Found specification of procedure write~$Pointer$ [2018-04-11 10:00:00,446 INFO L128 BoogieDeclarations]: Found specification of procedure read~$Pointer$ [2018-04-11 10:00:00,446 INFO L128 BoogieDeclarations]: Found specification of procedure read~int [2018-04-11 10:00:00,446 INFO L128 BoogieDeclarations]: Found specification of procedure write~int [2018-04-11 10:00:00,446 INFO L128 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2018-04-11 10:00:00,446 INFO L128 BoogieDeclarations]: Found specification of procedure main [2018-04-11 10:00:00,446 INFO L128 BoogieDeclarations]: Found specification of procedure ULTIMATE.init [2018-04-11 10:00:00,446 INFO L128 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2018-04-11 10:00:00,447 INFO L128 BoogieDeclarations]: Found specification of procedure write~unchecked~int [2018-04-11 10:00:00,760 INFO L259 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2018-04-11 10:00:00,761 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 11.04 10:00:00 BoogieIcfgContainer [2018-04-11 10:00:00,761 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2018-04-11 10:00:00,761 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2018-04-11 10:00:00,761 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2018-04-11 10:00:00,764 INFO L276 PluginConnector]: TraceAbstraction initialized [2018-04-11 10:00:00,764 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 11.04 09:59:59" (1/3) ... [2018-04-11 10:00:00,765 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@7a5872f1 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 11.04 10:00:00, skipping insertion in model container [2018-04-11 10:00:00,765 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 11.04 10:00:00" (2/3) ... [2018-04-11 10:00:00,765 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@7a5872f1 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 11.04 10:00:00, skipping insertion in model container [2018-04-11 10:00:00,765 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 11.04 10:00:00" (3/3) ... [2018-04-11 10:00:00,766 INFO L107 eAbstractionObserver]: Analyzing ICFG openbsd_cstpncpy-alloca_true-valid-memsafety_true-termination.i [2018-04-11 10:00:00,775 INFO L131 ceAbstractionStarter]: Automizer settings: Hoare:false NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2018-04-11 10:00:00,782 INFO L143 ceAbstractionStarter]: Appying trace abstraction to program that has 21 error locations. [2018-04-11 10:00:00,817 INFO L128 ementStrategyFactory]: Using default assertion order modulation [2018-04-11 10:00:00,817 INFO L369 AbstractCegarLoop]: Interprodecural is true [2018-04-11 10:00:00,817 INFO L370 AbstractCegarLoop]: Hoare is false [2018-04-11 10:00:00,818 INFO L371 AbstractCegarLoop]: Compute interpolants for FPandBP [2018-04-11 10:00:00,818 INFO L372 AbstractCegarLoop]: Backedges is TWOTRACK [2018-04-11 10:00:00,818 INFO L373 AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2018-04-11 10:00:00,818 INFO L374 AbstractCegarLoop]: Difference is false [2018-04-11 10:00:00,818 INFO L375 AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA [2018-04-11 10:00:00,818 INFO L380 AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == AllErrorsAtOnce======== [2018-04-11 10:00:00,818 INFO L87 2NestedWordAutomaton]: Mode: main mode - execution starts in main procedure [2018-04-11 10:00:00,828 INFO L276 IsEmpty]: Start isEmpty. Operand 71 states. [2018-04-11 10:00:00,836 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 14 [2018-04-11 10:00:00,837 INFO L347 BasicCegarLoop]: Found error trace [2018-04-11 10:00:00,837 INFO L355 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2018-04-11 10:00:00,837 INFO L408 AbstractCegarLoop]: === Iteration 1 === [mainErr1RequiresViolation, mainErr2EnsuresViolationMEMORY_LEAK, mainErr0RequiresViolation, __U_MULTI_fopenbsd_cstpncpy_alloca_true_valid_memsafety_true_termination_i__cstpncpyErr2RequiresViolation, __U_MULTI_fopenbsd_cstpncpy_alloca_true_valid_memsafety_true_termination_i__cstpncpyErr12RequiresViolation, __U_MULTI_fopenbsd_cstpncpy_alloca_true_valid_memsafety_true_termination_i__cstpncpyErr17RequiresViolation, __U_MULTI_fopenbsd_cstpncpy_alloca_true_valid_memsafety_true_termination_i__cstpncpyErr3RequiresViolation, __U_MULTI_fopenbsd_cstpncpy_alloca_true_valid_memsafety_true_termination_i__cstpncpyErr6RequiresViolation, __U_MULTI_fopenbsd_cstpncpy_alloca_true_valid_memsafety_true_termination_i__cstpncpyErr13RequiresViolation, __U_MULTI_fopenbsd_cstpncpy_alloca_true_valid_memsafety_true_termination_i__cstpncpyErr8RequiresViolation, __U_MULTI_fopenbsd_cstpncpy_alloca_true_valid_memsafety_true_termination_i__cstpncpyErr1RequiresViolation, __U_MULTI_fopenbsd_cstpncpy_alloca_true_valid_memsafety_true_termination_i__cstpncpyErr0RequiresViolation, __U_MULTI_fopenbsd_cstpncpy_alloca_true_valid_memsafety_true_termination_i__cstpncpyErr9RequiresViolation, __U_MULTI_fopenbsd_cstpncpy_alloca_true_valid_memsafety_true_termination_i__cstpncpyErr10RequiresViolation, __U_MULTI_fopenbsd_cstpncpy_alloca_true_valid_memsafety_true_termination_i__cstpncpyErr15RequiresViolation, __U_MULTI_fopenbsd_cstpncpy_alloca_true_valid_memsafety_true_termination_i__cstpncpyErr5RequiresViolation, __U_MULTI_fopenbsd_cstpncpy_alloca_true_valid_memsafety_true_termination_i__cstpncpyErr4RequiresViolation, __U_MULTI_fopenbsd_cstpncpy_alloca_true_valid_memsafety_true_termination_i__cstpncpyErr11RequiresViolation, __U_MULTI_fopenbsd_cstpncpy_alloca_true_valid_memsafety_true_termination_i__cstpncpyErr16RequiresViolation, __U_MULTI_fopenbsd_cstpncpy_alloca_true_valid_memsafety_true_termination_i__cstpncpyErr7RequiresViolation, __U_MULTI_fopenbsd_cstpncpy_alloca_true_valid_memsafety_true_termination_i__cstpncpyErr14RequiresViolation]=== [2018-04-11 10:00:00,840 INFO L82 PathProgramCache]: Analyzing trace with hash -79722019, now seen corresponding path program 1 times [2018-04-11 10:00:00,841 INFO L213 ckRefinementStrategy]: Switched to mode SMTINTERPOL_TREE_INTERPOLANTS [2018-04-11 10:00:00,842 INFO L68 tionRefinementEngine]: Using refinement strategy CamelRefinementStrategy [2018-04-11 10:00:00,873 INFO L119 rtionOrderModulation]: Craig nested/tree interpolation forces the following order [2018-04-11 10:00:00,874 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-04-11 10:00:00,874 INFO L119 rtionOrderModulation]: Craig nested/tree interpolation forces the following order [2018-04-11 10:00:00,915 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-04-11 10:00:00,922 WARN L137 erpolLogProxyWrapper]: Using partial proofs (cut at CNF-level). Set option :produce-proofs to true to get complete proofs. [2018-04-11 10:00:00,969 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-04-11 10:00:00,971 INFO L320 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2018-04-11 10:00:00,971 INFO L335 seRefinementStrategy]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2018-04-11 10:00:00,972 INFO L442 AbstractCegarLoop]: Interpolant automaton has 4 states [2018-04-11 10:00:00,980 INFO L132 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2018-04-11 10:00:00,981 INFO L133 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2018-04-11 10:00:00,982 INFO L87 Difference]: Start difference. First operand 71 states. Second operand 4 states. [2018-04-11 10:00:01,142 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-04-11 10:00:01,142 INFO L93 Difference]: Finished difference Result 70 states and 75 transitions. [2018-04-11 10:00:01,142 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2018-04-11 10:00:01,143 INFO L78 Accepts]: Start accepts. Automaton has 4 states. Word has length 13 [2018-04-11 10:00:01,144 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-04-11 10:00:01,149 INFO L225 Difference]: With dead ends: 70 [2018-04-11 10:00:01,149 INFO L226 Difference]: Without dead ends: 67 [2018-04-11 10:00:01,150 INFO L567 BasicCegarLoop]: 0 DeclaredPredicates, 4 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2018-04-11 10:00:01,161 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 67 states. [2018-04-11 10:00:01,174 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 67 to 67. [2018-04-11 10:00:01,176 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 67 states. [2018-04-11 10:00:01,177 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 67 states to 67 states and 72 transitions. [2018-04-11 10:00:01,178 INFO L78 Accepts]: Start accepts. Automaton has 67 states and 72 transitions. Word has length 13 [2018-04-11 10:00:01,179 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-04-11 10:00:01,179 INFO L459 AbstractCegarLoop]: Abstraction has 67 states and 72 transitions. [2018-04-11 10:00:01,179 INFO L460 AbstractCegarLoop]: Interpolant automaton has 4 states. [2018-04-11 10:00:01,179 INFO L276 IsEmpty]: Start isEmpty. Operand 67 states and 72 transitions. [2018-04-11 10:00:01,179 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 14 [2018-04-11 10:00:01,179 INFO L347 BasicCegarLoop]: Found error trace [2018-04-11 10:00:01,180 INFO L355 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2018-04-11 10:00:01,180 INFO L408 AbstractCegarLoop]: === Iteration 2 === [mainErr1RequiresViolation, mainErr2EnsuresViolationMEMORY_LEAK, mainErr0RequiresViolation, __U_MULTI_fopenbsd_cstpncpy_alloca_true_valid_memsafety_true_termination_i__cstpncpyErr2RequiresViolation, __U_MULTI_fopenbsd_cstpncpy_alloca_true_valid_memsafety_true_termination_i__cstpncpyErr12RequiresViolation, __U_MULTI_fopenbsd_cstpncpy_alloca_true_valid_memsafety_true_termination_i__cstpncpyErr17RequiresViolation, __U_MULTI_fopenbsd_cstpncpy_alloca_true_valid_memsafety_true_termination_i__cstpncpyErr3RequiresViolation, __U_MULTI_fopenbsd_cstpncpy_alloca_true_valid_memsafety_true_termination_i__cstpncpyErr6RequiresViolation, __U_MULTI_fopenbsd_cstpncpy_alloca_true_valid_memsafety_true_termination_i__cstpncpyErr13RequiresViolation, __U_MULTI_fopenbsd_cstpncpy_alloca_true_valid_memsafety_true_termination_i__cstpncpyErr8RequiresViolation, __U_MULTI_fopenbsd_cstpncpy_alloca_true_valid_memsafety_true_termination_i__cstpncpyErr1RequiresViolation, __U_MULTI_fopenbsd_cstpncpy_alloca_true_valid_memsafety_true_termination_i__cstpncpyErr0RequiresViolation, __U_MULTI_fopenbsd_cstpncpy_alloca_true_valid_memsafety_true_termination_i__cstpncpyErr9RequiresViolation, __U_MULTI_fopenbsd_cstpncpy_alloca_true_valid_memsafety_true_termination_i__cstpncpyErr10RequiresViolation, __U_MULTI_fopenbsd_cstpncpy_alloca_true_valid_memsafety_true_termination_i__cstpncpyErr15RequiresViolation, __U_MULTI_fopenbsd_cstpncpy_alloca_true_valid_memsafety_true_termination_i__cstpncpyErr5RequiresViolation, __U_MULTI_fopenbsd_cstpncpy_alloca_true_valid_memsafety_true_termination_i__cstpncpyErr4RequiresViolation, __U_MULTI_fopenbsd_cstpncpy_alloca_true_valid_memsafety_true_termination_i__cstpncpyErr11RequiresViolation, __U_MULTI_fopenbsd_cstpncpy_alloca_true_valid_memsafety_true_termination_i__cstpncpyErr16RequiresViolation, __U_MULTI_fopenbsd_cstpncpy_alloca_true_valid_memsafety_true_termination_i__cstpncpyErr7RequiresViolation, __U_MULTI_fopenbsd_cstpncpy_alloca_true_valid_memsafety_true_termination_i__cstpncpyErr14RequiresViolation]=== [2018-04-11 10:00:01,180 INFO L82 PathProgramCache]: Analyzing trace with hash -79722018, now seen corresponding path program 1 times [2018-04-11 10:00:01,180 INFO L213 ckRefinementStrategy]: Switched to mode SMTINTERPOL_TREE_INTERPOLANTS [2018-04-11 10:00:01,180 INFO L68 tionRefinementEngine]: Using refinement strategy CamelRefinementStrategy [2018-04-11 10:00:01,181 INFO L119 rtionOrderModulation]: Craig nested/tree interpolation forces the following order [2018-04-11 10:00:01,181 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-04-11 10:00:01,181 INFO L119 rtionOrderModulation]: Craig nested/tree interpolation forces the following order [2018-04-11 10:00:01,201 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-04-11 10:00:01,201 WARN L137 erpolLogProxyWrapper]: Using partial proofs (cut at CNF-level). Set option :produce-proofs to true to get complete proofs. [2018-04-11 10:00:01,272 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-04-11 10:00:01,272 INFO L320 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2018-04-11 10:00:01,272 INFO L335 seRefinementStrategy]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2018-04-11 10:00:01,273 INFO L442 AbstractCegarLoop]: Interpolant automaton has 5 states [2018-04-11 10:00:01,273 INFO L132 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2018-04-11 10:00:01,273 INFO L133 InterpolantAutomaton]: CoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2018-04-11 10:00:01,273 INFO L87 Difference]: Start difference. First operand 67 states and 72 transitions. Second operand 5 states. [2018-04-11 10:00:01,314 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-04-11 10:00:01,315 INFO L93 Difference]: Finished difference Result 66 states and 71 transitions. [2018-04-11 10:00:01,315 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2018-04-11 10:00:01,315 INFO L78 Accepts]: Start accepts. Automaton has 5 states. Word has length 13 [2018-04-11 10:00:01,316 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-04-11 10:00:01,316 INFO L225 Difference]: With dead ends: 66 [2018-04-11 10:00:01,316 INFO L226 Difference]: Without dead ends: 66 [2018-04-11 10:00:01,317 INFO L567 BasicCegarLoop]: 0 DeclaredPredicates, 5 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 4 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=14, Invalid=16, Unknown=0, NotChecked=0, Total=30 [2018-04-11 10:00:01,318 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 66 states. [2018-04-11 10:00:01,321 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 66 to 66. [2018-04-11 10:00:01,321 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 66 states. [2018-04-11 10:00:01,323 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 66 states to 66 states and 71 transitions. [2018-04-11 10:00:01,323 INFO L78 Accepts]: Start accepts. Automaton has 66 states and 71 transitions. Word has length 13 [2018-04-11 10:00:01,323 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-04-11 10:00:01,323 INFO L459 AbstractCegarLoop]: Abstraction has 66 states and 71 transitions. [2018-04-11 10:00:01,323 INFO L460 AbstractCegarLoop]: Interpolant automaton has 5 states. [2018-04-11 10:00:01,323 INFO L276 IsEmpty]: Start isEmpty. Operand 66 states and 71 transitions. [2018-04-11 10:00:01,324 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 17 [2018-04-11 10:00:01,324 INFO L347 BasicCegarLoop]: Found error trace [2018-04-11 10:00:01,324 INFO L355 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2018-04-11 10:00:01,324 INFO L408 AbstractCegarLoop]: === Iteration 3 === [mainErr1RequiresViolation, mainErr2EnsuresViolationMEMORY_LEAK, mainErr0RequiresViolation, __U_MULTI_fopenbsd_cstpncpy_alloca_true_valid_memsafety_true_termination_i__cstpncpyErr2RequiresViolation, __U_MULTI_fopenbsd_cstpncpy_alloca_true_valid_memsafety_true_termination_i__cstpncpyErr12RequiresViolation, __U_MULTI_fopenbsd_cstpncpy_alloca_true_valid_memsafety_true_termination_i__cstpncpyErr17RequiresViolation, __U_MULTI_fopenbsd_cstpncpy_alloca_true_valid_memsafety_true_termination_i__cstpncpyErr3RequiresViolation, __U_MULTI_fopenbsd_cstpncpy_alloca_true_valid_memsafety_true_termination_i__cstpncpyErr6RequiresViolation, __U_MULTI_fopenbsd_cstpncpy_alloca_true_valid_memsafety_true_termination_i__cstpncpyErr13RequiresViolation, __U_MULTI_fopenbsd_cstpncpy_alloca_true_valid_memsafety_true_termination_i__cstpncpyErr8RequiresViolation, __U_MULTI_fopenbsd_cstpncpy_alloca_true_valid_memsafety_true_termination_i__cstpncpyErr1RequiresViolation, __U_MULTI_fopenbsd_cstpncpy_alloca_true_valid_memsafety_true_termination_i__cstpncpyErr0RequiresViolation, __U_MULTI_fopenbsd_cstpncpy_alloca_true_valid_memsafety_true_termination_i__cstpncpyErr9RequiresViolation, __U_MULTI_fopenbsd_cstpncpy_alloca_true_valid_memsafety_true_termination_i__cstpncpyErr10RequiresViolation, __U_MULTI_fopenbsd_cstpncpy_alloca_true_valid_memsafety_true_termination_i__cstpncpyErr15RequiresViolation, __U_MULTI_fopenbsd_cstpncpy_alloca_true_valid_memsafety_true_termination_i__cstpncpyErr5RequiresViolation, __U_MULTI_fopenbsd_cstpncpy_alloca_true_valid_memsafety_true_termination_i__cstpncpyErr4RequiresViolation, __U_MULTI_fopenbsd_cstpncpy_alloca_true_valid_memsafety_true_termination_i__cstpncpyErr11RequiresViolation, __U_MULTI_fopenbsd_cstpncpy_alloca_true_valid_memsafety_true_termination_i__cstpncpyErr16RequiresViolation, __U_MULTI_fopenbsd_cstpncpy_alloca_true_valid_memsafety_true_termination_i__cstpncpyErr7RequiresViolation, __U_MULTI_fopenbsd_cstpncpy_alloca_true_valid_memsafety_true_termination_i__cstpncpyErr14RequiresViolation]=== [2018-04-11 10:00:01,324 INFO L82 PathProgramCache]: Analyzing trace with hash 118325590, now seen corresponding path program 1 times [2018-04-11 10:00:01,324 INFO L213 ckRefinementStrategy]: Switched to mode SMTINTERPOL_TREE_INTERPOLANTS [2018-04-11 10:00:01,324 INFO L68 tionRefinementEngine]: Using refinement strategy CamelRefinementStrategy [2018-04-11 10:00:01,325 INFO L119 rtionOrderModulation]: Craig nested/tree interpolation forces the following order [2018-04-11 10:00:01,325 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-04-11 10:00:01,325 INFO L119 rtionOrderModulation]: Craig nested/tree interpolation forces the following order [2018-04-11 10:00:01,341 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-04-11 10:00:01,342 WARN L137 erpolLogProxyWrapper]: Using partial proofs (cut at CNF-level). Set option :produce-proofs to true to get complete proofs. [2018-04-11 10:00:01,373 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-04-11 10:00:01,373 INFO L320 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2018-04-11 10:00:01,373 INFO L335 seRefinementStrategy]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2018-04-11 10:00:01,373 INFO L442 AbstractCegarLoop]: Interpolant automaton has 3 states [2018-04-11 10:00:01,373 INFO L132 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2018-04-11 10:00:01,374 INFO L133 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2018-04-11 10:00:01,374 INFO L87 Difference]: Start difference. First operand 66 states and 71 transitions. Second operand 3 states. [2018-04-11 10:00:01,415 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-04-11 10:00:01,416 INFO L93 Difference]: Finished difference Result 60 states and 65 transitions. [2018-04-11 10:00:01,416 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2018-04-11 10:00:01,416 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 16 [2018-04-11 10:00:01,416 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-04-11 10:00:01,417 INFO L225 Difference]: With dead ends: 60 [2018-04-11 10:00:01,417 INFO L226 Difference]: Without dead ends: 60 [2018-04-11 10:00:01,417 INFO L567 BasicCegarLoop]: 0 DeclaredPredicates, 2 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2018-04-11 10:00:01,417 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 60 states. [2018-04-11 10:00:01,419 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 60 to 60. [2018-04-11 10:00:01,420 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 60 states. [2018-04-11 10:00:01,420 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 60 states to 60 states and 65 transitions. [2018-04-11 10:00:01,421 INFO L78 Accepts]: Start accepts. Automaton has 60 states and 65 transitions. Word has length 16 [2018-04-11 10:00:01,421 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-04-11 10:00:01,421 INFO L459 AbstractCegarLoop]: Abstraction has 60 states and 65 transitions. [2018-04-11 10:00:01,421 INFO L460 AbstractCegarLoop]: Interpolant automaton has 3 states. [2018-04-11 10:00:01,421 INFO L276 IsEmpty]: Start isEmpty. Operand 60 states and 65 transitions. [2018-04-11 10:00:01,422 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 17 [2018-04-11 10:00:01,422 INFO L347 BasicCegarLoop]: Found error trace [2018-04-11 10:00:01,422 INFO L355 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2018-04-11 10:00:01,422 INFO L408 AbstractCegarLoop]: === Iteration 4 === [mainErr1RequiresViolation, mainErr2EnsuresViolationMEMORY_LEAK, mainErr0RequiresViolation, __U_MULTI_fopenbsd_cstpncpy_alloca_true_valid_memsafety_true_termination_i__cstpncpyErr2RequiresViolation, __U_MULTI_fopenbsd_cstpncpy_alloca_true_valid_memsafety_true_termination_i__cstpncpyErr12RequiresViolation, __U_MULTI_fopenbsd_cstpncpy_alloca_true_valid_memsafety_true_termination_i__cstpncpyErr17RequiresViolation, __U_MULTI_fopenbsd_cstpncpy_alloca_true_valid_memsafety_true_termination_i__cstpncpyErr3RequiresViolation, __U_MULTI_fopenbsd_cstpncpy_alloca_true_valid_memsafety_true_termination_i__cstpncpyErr6RequiresViolation, __U_MULTI_fopenbsd_cstpncpy_alloca_true_valid_memsafety_true_termination_i__cstpncpyErr13RequiresViolation, __U_MULTI_fopenbsd_cstpncpy_alloca_true_valid_memsafety_true_termination_i__cstpncpyErr8RequiresViolation, __U_MULTI_fopenbsd_cstpncpy_alloca_true_valid_memsafety_true_termination_i__cstpncpyErr1RequiresViolation, __U_MULTI_fopenbsd_cstpncpy_alloca_true_valid_memsafety_true_termination_i__cstpncpyErr0RequiresViolation, __U_MULTI_fopenbsd_cstpncpy_alloca_true_valid_memsafety_true_termination_i__cstpncpyErr9RequiresViolation, __U_MULTI_fopenbsd_cstpncpy_alloca_true_valid_memsafety_true_termination_i__cstpncpyErr10RequiresViolation, __U_MULTI_fopenbsd_cstpncpy_alloca_true_valid_memsafety_true_termination_i__cstpncpyErr15RequiresViolation, __U_MULTI_fopenbsd_cstpncpy_alloca_true_valid_memsafety_true_termination_i__cstpncpyErr5RequiresViolation, __U_MULTI_fopenbsd_cstpncpy_alloca_true_valid_memsafety_true_termination_i__cstpncpyErr4RequiresViolation, __U_MULTI_fopenbsd_cstpncpy_alloca_true_valid_memsafety_true_termination_i__cstpncpyErr11RequiresViolation, __U_MULTI_fopenbsd_cstpncpy_alloca_true_valid_memsafety_true_termination_i__cstpncpyErr16RequiresViolation, __U_MULTI_fopenbsd_cstpncpy_alloca_true_valid_memsafety_true_termination_i__cstpncpyErr7RequiresViolation, __U_MULTI_fopenbsd_cstpncpy_alloca_true_valid_memsafety_true_termination_i__cstpncpyErr14RequiresViolation]=== [2018-04-11 10:00:01,422 INFO L82 PathProgramCache]: Analyzing trace with hash 118325591, now seen corresponding path program 1 times [2018-04-11 10:00:01,422 INFO L213 ckRefinementStrategy]: Switched to mode SMTINTERPOL_TREE_INTERPOLANTS [2018-04-11 10:00:01,422 INFO L68 tionRefinementEngine]: Using refinement strategy CamelRefinementStrategy [2018-04-11 10:00:01,423 INFO L119 rtionOrderModulation]: Craig nested/tree interpolation forces the following order [2018-04-11 10:00:01,423 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-04-11 10:00:01,423 INFO L119 rtionOrderModulation]: Craig nested/tree interpolation forces the following order [2018-04-11 10:00:01,439 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-04-11 10:00:01,440 WARN L137 erpolLogProxyWrapper]: Using partial proofs (cut at CNF-level). Set option :produce-proofs to true to get complete proofs. [2018-04-11 10:00:01,471 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-04-11 10:00:01,471 INFO L320 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2018-04-11 10:00:01,471 INFO L335 seRefinementStrategy]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2018-04-11 10:00:01,471 INFO L442 AbstractCegarLoop]: Interpolant automaton has 3 states [2018-04-11 10:00:01,471 INFO L132 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2018-04-11 10:00:01,472 INFO L133 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2018-04-11 10:00:01,472 INFO L87 Difference]: Start difference. First operand 60 states and 65 transitions. Second operand 3 states. [2018-04-11 10:00:01,504 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-04-11 10:00:01,504 INFO L93 Difference]: Finished difference Result 54 states and 59 transitions. [2018-04-11 10:00:01,504 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2018-04-11 10:00:01,505 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 16 [2018-04-11 10:00:01,505 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-04-11 10:00:01,505 INFO L225 Difference]: With dead ends: 54 [2018-04-11 10:00:01,505 INFO L226 Difference]: Without dead ends: 54 [2018-04-11 10:00:01,506 INFO L567 BasicCegarLoop]: 0 DeclaredPredicates, 2 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2018-04-11 10:00:01,506 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 54 states. [2018-04-11 10:00:01,508 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 54 to 54. [2018-04-11 10:00:01,508 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 54 states. [2018-04-11 10:00:01,509 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 54 states to 54 states and 59 transitions. [2018-04-11 10:00:01,509 INFO L78 Accepts]: Start accepts. Automaton has 54 states and 59 transitions. Word has length 16 [2018-04-11 10:00:01,510 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-04-11 10:00:01,510 INFO L459 AbstractCegarLoop]: Abstraction has 54 states and 59 transitions. [2018-04-11 10:00:01,510 INFO L460 AbstractCegarLoop]: Interpolant automaton has 3 states. [2018-04-11 10:00:01,510 INFO L276 IsEmpty]: Start isEmpty. Operand 54 states and 59 transitions. [2018-04-11 10:00:01,511 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 26 [2018-04-11 10:00:01,511 INFO L347 BasicCegarLoop]: Found error trace [2018-04-11 10:00:01,511 INFO L355 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2018-04-11 10:00:01,511 INFO L408 AbstractCegarLoop]: === Iteration 5 === [mainErr1RequiresViolation, mainErr2EnsuresViolationMEMORY_LEAK, mainErr0RequiresViolation, __U_MULTI_fopenbsd_cstpncpy_alloca_true_valid_memsafety_true_termination_i__cstpncpyErr2RequiresViolation, __U_MULTI_fopenbsd_cstpncpy_alloca_true_valid_memsafety_true_termination_i__cstpncpyErr12RequiresViolation, __U_MULTI_fopenbsd_cstpncpy_alloca_true_valid_memsafety_true_termination_i__cstpncpyErr17RequiresViolation, __U_MULTI_fopenbsd_cstpncpy_alloca_true_valid_memsafety_true_termination_i__cstpncpyErr3RequiresViolation, __U_MULTI_fopenbsd_cstpncpy_alloca_true_valid_memsafety_true_termination_i__cstpncpyErr6RequiresViolation, __U_MULTI_fopenbsd_cstpncpy_alloca_true_valid_memsafety_true_termination_i__cstpncpyErr13RequiresViolation, __U_MULTI_fopenbsd_cstpncpy_alloca_true_valid_memsafety_true_termination_i__cstpncpyErr8RequiresViolation, __U_MULTI_fopenbsd_cstpncpy_alloca_true_valid_memsafety_true_termination_i__cstpncpyErr1RequiresViolation, __U_MULTI_fopenbsd_cstpncpy_alloca_true_valid_memsafety_true_termination_i__cstpncpyErr0RequiresViolation, __U_MULTI_fopenbsd_cstpncpy_alloca_true_valid_memsafety_true_termination_i__cstpncpyErr9RequiresViolation, __U_MULTI_fopenbsd_cstpncpy_alloca_true_valid_memsafety_true_termination_i__cstpncpyErr10RequiresViolation, __U_MULTI_fopenbsd_cstpncpy_alloca_true_valid_memsafety_true_termination_i__cstpncpyErr15RequiresViolation, __U_MULTI_fopenbsd_cstpncpy_alloca_true_valid_memsafety_true_termination_i__cstpncpyErr5RequiresViolation, __U_MULTI_fopenbsd_cstpncpy_alloca_true_valid_memsafety_true_termination_i__cstpncpyErr4RequiresViolation, __U_MULTI_fopenbsd_cstpncpy_alloca_true_valid_memsafety_true_termination_i__cstpncpyErr11RequiresViolation, __U_MULTI_fopenbsd_cstpncpy_alloca_true_valid_memsafety_true_termination_i__cstpncpyErr16RequiresViolation, __U_MULTI_fopenbsd_cstpncpy_alloca_true_valid_memsafety_true_termination_i__cstpncpyErr7RequiresViolation, __U_MULTI_fopenbsd_cstpncpy_alloca_true_valid_memsafety_true_termination_i__cstpncpyErr14RequiresViolation]=== [2018-04-11 10:00:01,511 INFO L82 PathProgramCache]: Analyzing trace with hash 1482550872, now seen corresponding path program 1 times [2018-04-11 10:00:01,511 INFO L213 ckRefinementStrategy]: Switched to mode SMTINTERPOL_TREE_INTERPOLANTS [2018-04-11 10:00:01,511 INFO L68 tionRefinementEngine]: Using refinement strategy CamelRefinementStrategy [2018-04-11 10:00:01,512 INFO L119 rtionOrderModulation]: Craig nested/tree interpolation forces the following order [2018-04-11 10:00:01,512 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-04-11 10:00:01,513 INFO L119 rtionOrderModulation]: Craig nested/tree interpolation forces the following order [2018-04-11 10:00:01,540 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-04-11 10:00:01,540 WARN L137 erpolLogProxyWrapper]: Using partial proofs (cut at CNF-level). Set option :produce-proofs to true to get complete proofs. [2018-04-11 10:00:01,649 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-04-11 10:00:01,649 INFO L320 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2018-04-11 10:00:01,649 INFO L335 seRefinementStrategy]: Number of different interpolants: perfect sequences [9] imperfect sequences [] total 9 [2018-04-11 10:00:01,649 INFO L442 AbstractCegarLoop]: Interpolant automaton has 10 states [2018-04-11 10:00:01,650 INFO L132 InterpolantAutomaton]: Constructing interpolant automaton starting with 10 interpolants. [2018-04-11 10:00:01,650 INFO L133 InterpolantAutomaton]: CoverageRelationStatistics Valid=21, Invalid=69, Unknown=0, NotChecked=0, Total=90 [2018-04-11 10:00:01,650 INFO L87 Difference]: Start difference. First operand 54 states and 59 transitions. Second operand 10 states. [2018-04-11 10:00:01,791 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-04-11 10:00:01,791 INFO L93 Difference]: Finished difference Result 56 states and 61 transitions. [2018-04-11 10:00:01,794 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2018-04-11 10:00:01,794 INFO L78 Accepts]: Start accepts. Automaton has 10 states. Word has length 25 [2018-04-11 10:00:01,794 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-04-11 10:00:01,795 INFO L225 Difference]: With dead ends: 56 [2018-04-11 10:00:01,795 INFO L226 Difference]: Without dead ends: 56 [2018-04-11 10:00:01,795 INFO L567 BasicCegarLoop]: 0 DeclaredPredicates, 12 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 11 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 11 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=47, Invalid=109, Unknown=0, NotChecked=0, Total=156 [2018-04-11 10:00:01,795 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 56 states. [2018-04-11 10:00:01,797 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 56 to 53. [2018-04-11 10:00:01,797 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 53 states. [2018-04-11 10:00:01,797 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 53 states to 53 states and 58 transitions. [2018-04-11 10:00:01,797 INFO L78 Accepts]: Start accepts. Automaton has 53 states and 58 transitions. Word has length 25 [2018-04-11 10:00:01,798 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-04-11 10:00:01,798 INFO L459 AbstractCegarLoop]: Abstraction has 53 states and 58 transitions. [2018-04-11 10:00:01,798 INFO L460 AbstractCegarLoop]: Interpolant automaton has 10 states. [2018-04-11 10:00:01,798 INFO L276 IsEmpty]: Start isEmpty. Operand 53 states and 58 transitions. [2018-04-11 10:00:01,798 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 26 [2018-04-11 10:00:01,798 INFO L347 BasicCegarLoop]: Found error trace [2018-04-11 10:00:01,798 INFO L355 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2018-04-11 10:00:01,798 INFO L408 AbstractCegarLoop]: === Iteration 6 === [mainErr1RequiresViolation, mainErr2EnsuresViolationMEMORY_LEAK, mainErr0RequiresViolation, __U_MULTI_fopenbsd_cstpncpy_alloca_true_valid_memsafety_true_termination_i__cstpncpyErr2RequiresViolation, __U_MULTI_fopenbsd_cstpncpy_alloca_true_valid_memsafety_true_termination_i__cstpncpyErr12RequiresViolation, __U_MULTI_fopenbsd_cstpncpy_alloca_true_valid_memsafety_true_termination_i__cstpncpyErr17RequiresViolation, __U_MULTI_fopenbsd_cstpncpy_alloca_true_valid_memsafety_true_termination_i__cstpncpyErr3RequiresViolation, __U_MULTI_fopenbsd_cstpncpy_alloca_true_valid_memsafety_true_termination_i__cstpncpyErr6RequiresViolation, __U_MULTI_fopenbsd_cstpncpy_alloca_true_valid_memsafety_true_termination_i__cstpncpyErr13RequiresViolation, __U_MULTI_fopenbsd_cstpncpy_alloca_true_valid_memsafety_true_termination_i__cstpncpyErr8RequiresViolation, __U_MULTI_fopenbsd_cstpncpy_alloca_true_valid_memsafety_true_termination_i__cstpncpyErr1RequiresViolation, __U_MULTI_fopenbsd_cstpncpy_alloca_true_valid_memsafety_true_termination_i__cstpncpyErr0RequiresViolation, __U_MULTI_fopenbsd_cstpncpy_alloca_true_valid_memsafety_true_termination_i__cstpncpyErr9RequiresViolation, __U_MULTI_fopenbsd_cstpncpy_alloca_true_valid_memsafety_true_termination_i__cstpncpyErr10RequiresViolation, __U_MULTI_fopenbsd_cstpncpy_alloca_true_valid_memsafety_true_termination_i__cstpncpyErr15RequiresViolation, __U_MULTI_fopenbsd_cstpncpy_alloca_true_valid_memsafety_true_termination_i__cstpncpyErr5RequiresViolation, __U_MULTI_fopenbsd_cstpncpy_alloca_true_valid_memsafety_true_termination_i__cstpncpyErr4RequiresViolation, __U_MULTI_fopenbsd_cstpncpy_alloca_true_valid_memsafety_true_termination_i__cstpncpyErr11RequiresViolation, __U_MULTI_fopenbsd_cstpncpy_alloca_true_valid_memsafety_true_termination_i__cstpncpyErr16RequiresViolation, __U_MULTI_fopenbsd_cstpncpy_alloca_true_valid_memsafety_true_termination_i__cstpncpyErr7RequiresViolation, __U_MULTI_fopenbsd_cstpncpy_alloca_true_valid_memsafety_true_termination_i__cstpncpyErr14RequiresViolation]=== [2018-04-11 10:00:01,798 INFO L82 PathProgramCache]: Analyzing trace with hash 1482550873, now seen corresponding path program 1 times [2018-04-11 10:00:01,799 INFO L213 ckRefinementStrategy]: Switched to mode SMTINTERPOL_TREE_INTERPOLANTS [2018-04-11 10:00:01,799 INFO L68 tionRefinementEngine]: Using refinement strategy CamelRefinementStrategy [2018-04-11 10:00:01,799 INFO L119 rtionOrderModulation]: Craig nested/tree interpolation forces the following order [2018-04-11 10:00:01,799 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-04-11 10:00:01,799 INFO L119 rtionOrderModulation]: Craig nested/tree interpolation forces the following order [2018-04-11 10:00:01,815 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-04-11 10:00:01,816 WARN L137 erpolLogProxyWrapper]: Using partial proofs (cut at CNF-level). Set option :produce-proofs to true to get complete proofs. [2018-04-11 10:00:01,942 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-04-11 10:00:01,942 INFO L320 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2018-04-11 10:00:01,942 INFO L335 seRefinementStrategy]: Number of different interpolants: perfect sequences [10] imperfect sequences [] total 10 [2018-04-11 10:00:01,942 INFO L442 AbstractCegarLoop]: Interpolant automaton has 11 states [2018-04-11 10:00:01,942 INFO L132 InterpolantAutomaton]: Constructing interpolant automaton starting with 11 interpolants. [2018-04-11 10:00:01,943 INFO L133 InterpolantAutomaton]: CoverageRelationStatistics Valid=22, Invalid=88, Unknown=0, NotChecked=0, Total=110 [2018-04-11 10:00:01,943 INFO L87 Difference]: Start difference. First operand 53 states and 58 transitions. Second operand 11 states. [2018-04-11 10:00:02,220 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-04-11 10:00:02,221 INFO L93 Difference]: Finished difference Result 59 states and 65 transitions. [2018-04-11 10:00:02,221 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 11 states. [2018-04-11 10:00:02,221 INFO L78 Accepts]: Start accepts. Automaton has 11 states. Word has length 25 [2018-04-11 10:00:02,222 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-04-11 10:00:02,222 INFO L225 Difference]: With dead ends: 59 [2018-04-11 10:00:02,222 INFO L226 Difference]: Without dead ends: 59 [2018-04-11 10:00:02,223 INFO L567 BasicCegarLoop]: 0 DeclaredPredicates, 16 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 15 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 36 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=60, Invalid=212, Unknown=0, NotChecked=0, Total=272 [2018-04-11 10:00:02,223 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 59 states. [2018-04-11 10:00:02,226 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 59 to 55. [2018-04-11 10:00:02,226 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 55 states. [2018-04-11 10:00:02,227 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 55 states to 55 states and 60 transitions. [2018-04-11 10:00:02,227 INFO L78 Accepts]: Start accepts. Automaton has 55 states and 60 transitions. Word has length 25 [2018-04-11 10:00:02,227 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-04-11 10:00:02,227 INFO L459 AbstractCegarLoop]: Abstraction has 55 states and 60 transitions. [2018-04-11 10:00:02,227 INFO L460 AbstractCegarLoop]: Interpolant automaton has 11 states. [2018-04-11 10:00:02,227 INFO L276 IsEmpty]: Start isEmpty. Operand 55 states and 60 transitions. [2018-04-11 10:00:02,228 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 27 [2018-04-11 10:00:02,228 INFO L347 BasicCegarLoop]: Found error trace [2018-04-11 10:00:02,228 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] [2018-04-11 10:00:02,228 INFO L408 AbstractCegarLoop]: === Iteration 7 === [mainErr1RequiresViolation, mainErr2EnsuresViolationMEMORY_LEAK, mainErr0RequiresViolation, __U_MULTI_fopenbsd_cstpncpy_alloca_true_valid_memsafety_true_termination_i__cstpncpyErr2RequiresViolation, __U_MULTI_fopenbsd_cstpncpy_alloca_true_valid_memsafety_true_termination_i__cstpncpyErr12RequiresViolation, __U_MULTI_fopenbsd_cstpncpy_alloca_true_valid_memsafety_true_termination_i__cstpncpyErr17RequiresViolation, __U_MULTI_fopenbsd_cstpncpy_alloca_true_valid_memsafety_true_termination_i__cstpncpyErr3RequiresViolation, __U_MULTI_fopenbsd_cstpncpy_alloca_true_valid_memsafety_true_termination_i__cstpncpyErr6RequiresViolation, __U_MULTI_fopenbsd_cstpncpy_alloca_true_valid_memsafety_true_termination_i__cstpncpyErr13RequiresViolation, __U_MULTI_fopenbsd_cstpncpy_alloca_true_valid_memsafety_true_termination_i__cstpncpyErr8RequiresViolation, __U_MULTI_fopenbsd_cstpncpy_alloca_true_valid_memsafety_true_termination_i__cstpncpyErr1RequiresViolation, __U_MULTI_fopenbsd_cstpncpy_alloca_true_valid_memsafety_true_termination_i__cstpncpyErr0RequiresViolation, __U_MULTI_fopenbsd_cstpncpy_alloca_true_valid_memsafety_true_termination_i__cstpncpyErr9RequiresViolation, __U_MULTI_fopenbsd_cstpncpy_alloca_true_valid_memsafety_true_termination_i__cstpncpyErr10RequiresViolation, __U_MULTI_fopenbsd_cstpncpy_alloca_true_valid_memsafety_true_termination_i__cstpncpyErr15RequiresViolation, __U_MULTI_fopenbsd_cstpncpy_alloca_true_valid_memsafety_true_termination_i__cstpncpyErr5RequiresViolation, __U_MULTI_fopenbsd_cstpncpy_alloca_true_valid_memsafety_true_termination_i__cstpncpyErr4RequiresViolation, __U_MULTI_fopenbsd_cstpncpy_alloca_true_valid_memsafety_true_termination_i__cstpncpyErr11RequiresViolation, __U_MULTI_fopenbsd_cstpncpy_alloca_true_valid_memsafety_true_termination_i__cstpncpyErr16RequiresViolation, __U_MULTI_fopenbsd_cstpncpy_alloca_true_valid_memsafety_true_termination_i__cstpncpyErr7RequiresViolation, __U_MULTI_fopenbsd_cstpncpy_alloca_true_valid_memsafety_true_termination_i__cstpncpyErr14RequiresViolation]=== [2018-04-11 10:00:02,229 INFO L82 PathProgramCache]: Analyzing trace with hash -1285563194, now seen corresponding path program 1 times [2018-04-11 10:00:02,229 INFO L213 ckRefinementStrategy]: Switched to mode SMTINTERPOL_TREE_INTERPOLANTS [2018-04-11 10:00:02,229 INFO L68 tionRefinementEngine]: Using refinement strategy CamelRefinementStrategy [2018-04-11 10:00:02,230 INFO L119 rtionOrderModulation]: Craig nested/tree interpolation forces the following order [2018-04-11 10:00:02,230 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-04-11 10:00:02,231 INFO L119 rtionOrderModulation]: Craig nested/tree interpolation forces the following order [2018-04-11 10:00:02,244 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-04-11 10:00:02,245 WARN L137 erpolLogProxyWrapper]: Using partial proofs (cut at CNF-level). Set option :produce-proofs to true to get complete proofs. [2018-04-11 10:00:02,449 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-04-11 10:00:02,449 INFO L320 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2018-04-11 10:00:02,449 INFO L335 seRefinementStrategy]: Number of different interpolants: perfect sequences [13] imperfect sequences [] total 13 [2018-04-11 10:00:02,449 INFO L442 AbstractCegarLoop]: Interpolant automaton has 14 states [2018-04-11 10:00:02,449 INFO L132 InterpolantAutomaton]: Constructing interpolant automaton starting with 14 interpolants. [2018-04-11 10:00:02,450 INFO L133 InterpolantAutomaton]: CoverageRelationStatistics Valid=29, Invalid=153, Unknown=0, NotChecked=0, Total=182 [2018-04-11 10:00:02,450 INFO L87 Difference]: Start difference. First operand 55 states and 60 transitions. Second operand 14 states. [2018-04-11 10:00:02,865 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-04-11 10:00:02,866 INFO L93 Difference]: Finished difference Result 57 states and 62 transitions. [2018-04-11 10:00:02,866 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 13 states. [2018-04-11 10:00:02,866 INFO L78 Accepts]: Start accepts. Automaton has 14 states. Word has length 26 [2018-04-11 10:00:02,867 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-04-11 10:00:02,867 INFO L225 Difference]: With dead ends: 57 [2018-04-11 10:00:02,867 INFO L226 Difference]: Without dead ends: 57 [2018-04-11 10:00:02,868 INFO L567 BasicCegarLoop]: 0 DeclaredPredicates, 22 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 20 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 48 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=87, Invalid=375, Unknown=0, NotChecked=0, Total=462 [2018-04-11 10:00:02,868 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 57 states. [2018-04-11 10:00:02,870 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 57 to 54. [2018-04-11 10:00:02,871 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 54 states. [2018-04-11 10:00:02,871 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 54 states to 54 states and 59 transitions. [2018-04-11 10:00:02,871 INFO L78 Accepts]: Start accepts. Automaton has 54 states and 59 transitions. Word has length 26 [2018-04-11 10:00:02,872 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-04-11 10:00:02,872 INFO L459 AbstractCegarLoop]: Abstraction has 54 states and 59 transitions. [2018-04-11 10:00:02,872 INFO L460 AbstractCegarLoop]: Interpolant automaton has 14 states. [2018-04-11 10:00:02,872 INFO L276 IsEmpty]: Start isEmpty. Operand 54 states and 59 transitions. [2018-04-11 10:00:02,873 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 27 [2018-04-11 10:00:02,873 INFO L347 BasicCegarLoop]: Found error trace [2018-04-11 10:00:02,873 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] [2018-04-11 10:00:02,873 INFO L408 AbstractCegarLoop]: === Iteration 8 === [mainErr1RequiresViolation, mainErr2EnsuresViolationMEMORY_LEAK, mainErr0RequiresViolation, __U_MULTI_fopenbsd_cstpncpy_alloca_true_valid_memsafety_true_termination_i__cstpncpyErr2RequiresViolation, __U_MULTI_fopenbsd_cstpncpy_alloca_true_valid_memsafety_true_termination_i__cstpncpyErr12RequiresViolation, __U_MULTI_fopenbsd_cstpncpy_alloca_true_valid_memsafety_true_termination_i__cstpncpyErr17RequiresViolation, __U_MULTI_fopenbsd_cstpncpy_alloca_true_valid_memsafety_true_termination_i__cstpncpyErr3RequiresViolation, __U_MULTI_fopenbsd_cstpncpy_alloca_true_valid_memsafety_true_termination_i__cstpncpyErr6RequiresViolation, __U_MULTI_fopenbsd_cstpncpy_alloca_true_valid_memsafety_true_termination_i__cstpncpyErr13RequiresViolation, __U_MULTI_fopenbsd_cstpncpy_alloca_true_valid_memsafety_true_termination_i__cstpncpyErr8RequiresViolation, __U_MULTI_fopenbsd_cstpncpy_alloca_true_valid_memsafety_true_termination_i__cstpncpyErr1RequiresViolation, __U_MULTI_fopenbsd_cstpncpy_alloca_true_valid_memsafety_true_termination_i__cstpncpyErr0RequiresViolation, __U_MULTI_fopenbsd_cstpncpy_alloca_true_valid_memsafety_true_termination_i__cstpncpyErr9RequiresViolation, __U_MULTI_fopenbsd_cstpncpy_alloca_true_valid_memsafety_true_termination_i__cstpncpyErr10RequiresViolation, __U_MULTI_fopenbsd_cstpncpy_alloca_true_valid_memsafety_true_termination_i__cstpncpyErr15RequiresViolation, __U_MULTI_fopenbsd_cstpncpy_alloca_true_valid_memsafety_true_termination_i__cstpncpyErr5RequiresViolation, __U_MULTI_fopenbsd_cstpncpy_alloca_true_valid_memsafety_true_termination_i__cstpncpyErr4RequiresViolation, __U_MULTI_fopenbsd_cstpncpy_alloca_true_valid_memsafety_true_termination_i__cstpncpyErr11RequiresViolation, __U_MULTI_fopenbsd_cstpncpy_alloca_true_valid_memsafety_true_termination_i__cstpncpyErr16RequiresViolation, __U_MULTI_fopenbsd_cstpncpy_alloca_true_valid_memsafety_true_termination_i__cstpncpyErr7RequiresViolation, __U_MULTI_fopenbsd_cstpncpy_alloca_true_valid_memsafety_true_termination_i__cstpncpyErr14RequiresViolation]=== [2018-04-11 10:00:02,873 INFO L82 PathProgramCache]: Analyzing trace with hash -1285563193, now seen corresponding path program 1 times [2018-04-11 10:00:02,873 INFO L213 ckRefinementStrategy]: Switched to mode SMTINTERPOL_TREE_INTERPOLANTS [2018-04-11 10:00:02,873 INFO L68 tionRefinementEngine]: Using refinement strategy CamelRefinementStrategy [2018-04-11 10:00:02,874 INFO L119 rtionOrderModulation]: Craig nested/tree interpolation forces the following order [2018-04-11 10:00:02,874 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-04-11 10:00:02,874 INFO L119 rtionOrderModulation]: Craig nested/tree interpolation forces the following order [2018-04-11 10:00:02,899 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-04-11 10:00:02,900 WARN L137 erpolLogProxyWrapper]: Using partial proofs (cut at CNF-level). Set option :produce-proofs to true to get complete proofs. [2018-04-11 10:00:03,148 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-04-11 10:00:03,148 INFO L320 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2018-04-11 10:00:03,148 INFO L335 seRefinementStrategy]: Number of different interpolants: perfect sequences [12] imperfect sequences [] total 12 [2018-04-11 10:00:03,148 INFO L442 AbstractCegarLoop]: Interpolant automaton has 13 states [2018-04-11 10:00:03,148 INFO L132 InterpolantAutomaton]: Constructing interpolant automaton starting with 13 interpolants. [2018-04-11 10:00:03,148 INFO L133 InterpolantAutomaton]: CoverageRelationStatistics Valid=29, Invalid=127, Unknown=0, NotChecked=0, Total=156 [2018-04-11 10:00:03,149 INFO L87 Difference]: Start difference. First operand 54 states and 59 transitions. Second operand 13 states. [2018-04-11 10:00:03,350 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-04-11 10:00:03,350 INFO L93 Difference]: Finished difference Result 59 states and 64 transitions. [2018-04-11 10:00:03,350 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 13 states. [2018-04-11 10:00:03,350 INFO L78 Accepts]: Start accepts. Automaton has 13 states. Word has length 26 [2018-04-11 10:00:03,350 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-04-11 10:00:03,351 INFO L225 Difference]: With dead ends: 59 [2018-04-11 10:00:03,351 INFO L226 Difference]: Without dead ends: 59 [2018-04-11 10:00:03,351 INFO L567 BasicCegarLoop]: 0 DeclaredPredicates, 21 GetRequests, 1 SyntacticMatches, 1 SemanticMatches, 19 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 79 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=78, Invalid=342, Unknown=0, NotChecked=0, Total=420 [2018-04-11 10:00:03,351 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 59 states. [2018-04-11 10:00:03,352 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 59 to 55. [2018-04-11 10:00:03,352 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 55 states. [2018-04-11 10:00:03,353 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 55 states to 55 states and 60 transitions. [2018-04-11 10:00:03,353 INFO L78 Accepts]: Start accepts. Automaton has 55 states and 60 transitions. Word has length 26 [2018-04-11 10:00:03,353 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-04-11 10:00:03,353 INFO L459 AbstractCegarLoop]: Abstraction has 55 states and 60 transitions. [2018-04-11 10:00:03,353 INFO L460 AbstractCegarLoop]: Interpolant automaton has 13 states. [2018-04-11 10:00:03,353 INFO L276 IsEmpty]: Start isEmpty. Operand 55 states and 60 transitions. [2018-04-11 10:00:03,353 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 31 [2018-04-11 10:00:03,353 INFO L347 BasicCegarLoop]: Found error trace [2018-04-11 10:00:03,353 INFO L355 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2018-04-11 10:00:03,354 INFO L408 AbstractCegarLoop]: === Iteration 9 === [mainErr1RequiresViolation, mainErr2EnsuresViolationMEMORY_LEAK, mainErr0RequiresViolation, __U_MULTI_fopenbsd_cstpncpy_alloca_true_valid_memsafety_true_termination_i__cstpncpyErr2RequiresViolation, __U_MULTI_fopenbsd_cstpncpy_alloca_true_valid_memsafety_true_termination_i__cstpncpyErr12RequiresViolation, __U_MULTI_fopenbsd_cstpncpy_alloca_true_valid_memsafety_true_termination_i__cstpncpyErr17RequiresViolation, __U_MULTI_fopenbsd_cstpncpy_alloca_true_valid_memsafety_true_termination_i__cstpncpyErr3RequiresViolation, __U_MULTI_fopenbsd_cstpncpy_alloca_true_valid_memsafety_true_termination_i__cstpncpyErr6RequiresViolation, __U_MULTI_fopenbsd_cstpncpy_alloca_true_valid_memsafety_true_termination_i__cstpncpyErr13RequiresViolation, __U_MULTI_fopenbsd_cstpncpy_alloca_true_valid_memsafety_true_termination_i__cstpncpyErr8RequiresViolation, __U_MULTI_fopenbsd_cstpncpy_alloca_true_valid_memsafety_true_termination_i__cstpncpyErr1RequiresViolation, __U_MULTI_fopenbsd_cstpncpy_alloca_true_valid_memsafety_true_termination_i__cstpncpyErr0RequiresViolation, __U_MULTI_fopenbsd_cstpncpy_alloca_true_valid_memsafety_true_termination_i__cstpncpyErr9RequiresViolation, __U_MULTI_fopenbsd_cstpncpy_alloca_true_valid_memsafety_true_termination_i__cstpncpyErr10RequiresViolation, __U_MULTI_fopenbsd_cstpncpy_alloca_true_valid_memsafety_true_termination_i__cstpncpyErr15RequiresViolation, __U_MULTI_fopenbsd_cstpncpy_alloca_true_valid_memsafety_true_termination_i__cstpncpyErr5RequiresViolation, __U_MULTI_fopenbsd_cstpncpy_alloca_true_valid_memsafety_true_termination_i__cstpncpyErr4RequiresViolation, __U_MULTI_fopenbsd_cstpncpy_alloca_true_valid_memsafety_true_termination_i__cstpncpyErr11RequiresViolation, __U_MULTI_fopenbsd_cstpncpy_alloca_true_valid_memsafety_true_termination_i__cstpncpyErr16RequiresViolation, __U_MULTI_fopenbsd_cstpncpy_alloca_true_valid_memsafety_true_termination_i__cstpncpyErr7RequiresViolation, __U_MULTI_fopenbsd_cstpncpy_alloca_true_valid_memsafety_true_termination_i__cstpncpyErr14RequiresViolation]=== [2018-04-11 10:00:03,354 INFO L82 PathProgramCache]: Analyzing trace with hash -551009024, now seen corresponding path program 1 times [2018-04-11 10:00:03,354 INFO L213 ckRefinementStrategy]: Switched to mode SMTINTERPOL_TREE_INTERPOLANTS [2018-04-11 10:00:03,354 INFO L68 tionRefinementEngine]: Using refinement strategy CamelRefinementStrategy [2018-04-11 10:00:03,355 INFO L119 rtionOrderModulation]: Craig nested/tree interpolation forces the following order [2018-04-11 10:00:03,355 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-04-11 10:00:03,355 INFO L119 rtionOrderModulation]: Craig nested/tree interpolation forces the following order [2018-04-11 10:00:03,364 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-04-11 10:00:03,364 WARN L137 erpolLogProxyWrapper]: Using partial proofs (cut at CNF-level). Set option :produce-proofs to true to get complete proofs. [2018-04-11 10:00:03,402 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-04-11 10:00:03,402 INFO L320 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2018-04-11 10:00:03,402 INFO L335 seRefinementStrategy]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2018-04-11 10:00:03,402 INFO L442 AbstractCegarLoop]: Interpolant automaton has 5 states [2018-04-11 10:00:03,402 INFO L132 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2018-04-11 10:00:03,403 INFO L133 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2018-04-11 10:00:03,403 INFO L87 Difference]: Start difference. First operand 55 states and 60 transitions. Second operand 5 states. [2018-04-11 10:00:03,447 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-04-11 10:00:03,447 INFO L93 Difference]: Finished difference Result 79 states and 85 transitions. [2018-04-11 10:00:03,447 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2018-04-11 10:00:03,447 INFO L78 Accepts]: Start accepts. Automaton has 5 states. Word has length 30 [2018-04-11 10:00:03,447 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-04-11 10:00:03,450 INFO L225 Difference]: With dead ends: 79 [2018-04-11 10:00:03,450 INFO L226 Difference]: Without dead ends: 79 [2018-04-11 10:00:03,450 INFO L567 BasicCegarLoop]: 0 DeclaredPredicates, 6 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 4 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=11, Invalid=19, Unknown=0, NotChecked=0, Total=30 [2018-04-11 10:00:03,451 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 79 states. [2018-04-11 10:00:03,458 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 79 to 67. [2018-04-11 10:00:03,458 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 67 states. [2018-04-11 10:00:03,459 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 67 states to 67 states and 73 transitions. [2018-04-11 10:00:03,459 INFO L78 Accepts]: Start accepts. Automaton has 67 states and 73 transitions. Word has length 30 [2018-04-11 10:00:03,459 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-04-11 10:00:03,459 INFO L459 AbstractCegarLoop]: Abstraction has 67 states and 73 transitions. [2018-04-11 10:00:03,459 INFO L460 AbstractCegarLoop]: Interpolant automaton has 5 states. [2018-04-11 10:00:03,459 INFO L276 IsEmpty]: Start isEmpty. Operand 67 states and 73 transitions. [2018-04-11 10:00:03,460 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 31 [2018-04-11 10:00:03,460 INFO L347 BasicCegarLoop]: Found error trace [2018-04-11 10:00:03,460 INFO L355 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2018-04-11 10:00:03,461 INFO L408 AbstractCegarLoop]: === Iteration 10 === [mainErr1RequiresViolation, mainErr2EnsuresViolationMEMORY_LEAK, mainErr0RequiresViolation, __U_MULTI_fopenbsd_cstpncpy_alloca_true_valid_memsafety_true_termination_i__cstpncpyErr2RequiresViolation, __U_MULTI_fopenbsd_cstpncpy_alloca_true_valid_memsafety_true_termination_i__cstpncpyErr12RequiresViolation, __U_MULTI_fopenbsd_cstpncpy_alloca_true_valid_memsafety_true_termination_i__cstpncpyErr17RequiresViolation, __U_MULTI_fopenbsd_cstpncpy_alloca_true_valid_memsafety_true_termination_i__cstpncpyErr3RequiresViolation, __U_MULTI_fopenbsd_cstpncpy_alloca_true_valid_memsafety_true_termination_i__cstpncpyErr6RequiresViolation, __U_MULTI_fopenbsd_cstpncpy_alloca_true_valid_memsafety_true_termination_i__cstpncpyErr13RequiresViolation, __U_MULTI_fopenbsd_cstpncpy_alloca_true_valid_memsafety_true_termination_i__cstpncpyErr8RequiresViolation, __U_MULTI_fopenbsd_cstpncpy_alloca_true_valid_memsafety_true_termination_i__cstpncpyErr1RequiresViolation, __U_MULTI_fopenbsd_cstpncpy_alloca_true_valid_memsafety_true_termination_i__cstpncpyErr0RequiresViolation, __U_MULTI_fopenbsd_cstpncpy_alloca_true_valid_memsafety_true_termination_i__cstpncpyErr9RequiresViolation, __U_MULTI_fopenbsd_cstpncpy_alloca_true_valid_memsafety_true_termination_i__cstpncpyErr10RequiresViolation, __U_MULTI_fopenbsd_cstpncpy_alloca_true_valid_memsafety_true_termination_i__cstpncpyErr15RequiresViolation, __U_MULTI_fopenbsd_cstpncpy_alloca_true_valid_memsafety_true_termination_i__cstpncpyErr5RequiresViolation, __U_MULTI_fopenbsd_cstpncpy_alloca_true_valid_memsafety_true_termination_i__cstpncpyErr4RequiresViolation, __U_MULTI_fopenbsd_cstpncpy_alloca_true_valid_memsafety_true_termination_i__cstpncpyErr11RequiresViolation, __U_MULTI_fopenbsd_cstpncpy_alloca_true_valid_memsafety_true_termination_i__cstpncpyErr16RequiresViolation, __U_MULTI_fopenbsd_cstpncpy_alloca_true_valid_memsafety_true_termination_i__cstpncpyErr7RequiresViolation, __U_MULTI_fopenbsd_cstpncpy_alloca_true_valid_memsafety_true_termination_i__cstpncpyErr14RequiresViolation]=== [2018-04-11 10:00:03,461 INFO L82 PathProgramCache]: Analyzing trace with hash 1938519938, now seen corresponding path program 1 times [2018-04-11 10:00:03,461 INFO L213 ckRefinementStrategy]: Switched to mode SMTINTERPOL_TREE_INTERPOLANTS [2018-04-11 10:00:03,461 INFO L68 tionRefinementEngine]: Using refinement strategy CamelRefinementStrategy [2018-04-11 10:00:03,462 INFO L119 rtionOrderModulation]: Craig nested/tree interpolation forces the following order [2018-04-11 10:00:03,462 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-04-11 10:00:03,462 INFO L119 rtionOrderModulation]: Craig nested/tree interpolation forces the following order [2018-04-11 10:00:03,473 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-04-11 10:00:03,474 WARN L137 erpolLogProxyWrapper]: Using partial proofs (cut at CNF-level). Set option :produce-proofs to true to get complete proofs. [2018-04-11 10:00:03,501 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-04-11 10:00:03,501 INFO L320 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2018-04-11 10:00:03,502 INFO L335 seRefinementStrategy]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2018-04-11 10:00:03,502 INFO L442 AbstractCegarLoop]: Interpolant automaton has 6 states [2018-04-11 10:00:03,502 INFO L132 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2018-04-11 10:00:03,502 INFO L133 InterpolantAutomaton]: CoverageRelationStatistics Valid=10, Invalid=20, Unknown=0, NotChecked=0, Total=30 [2018-04-11 10:00:03,502 INFO L87 Difference]: Start difference. First operand 67 states and 73 transitions. Second operand 6 states. [2018-04-11 10:00:03,525 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-04-11 10:00:03,525 INFO L93 Difference]: Finished difference Result 72 states and 78 transitions. [2018-04-11 10:00:03,526 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2018-04-11 10:00:03,526 INFO L78 Accepts]: Start accepts. Automaton has 6 states. Word has length 30 [2018-04-11 10:00:03,526 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-04-11 10:00:03,526 INFO L225 Difference]: With dead ends: 72 [2018-04-11 10:00:03,526 INFO L226 Difference]: Without dead ends: 66 [2018-04-11 10:00:03,527 INFO L567 BasicCegarLoop]: 0 DeclaredPredicates, 7 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 5 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 3 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=14, Invalid=28, Unknown=0, NotChecked=0, Total=42 [2018-04-11 10:00:03,527 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 66 states. [2018-04-11 10:00:03,529 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 66 to 55. [2018-04-11 10:00:03,529 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 55 states. [2018-04-11 10:00:03,529 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 55 states to 55 states and 59 transitions. [2018-04-11 10:00:03,529 INFO L78 Accepts]: Start accepts. Automaton has 55 states and 59 transitions. Word has length 30 [2018-04-11 10:00:03,530 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-04-11 10:00:03,530 INFO L459 AbstractCegarLoop]: Abstraction has 55 states and 59 transitions. [2018-04-11 10:00:03,530 INFO L460 AbstractCegarLoop]: Interpolant automaton has 6 states. [2018-04-11 10:00:03,530 INFO L276 IsEmpty]: Start isEmpty. Operand 55 states and 59 transitions. [2018-04-11 10:00:03,530 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 32 [2018-04-11 10:00:03,531 INFO L347 BasicCegarLoop]: Found error trace [2018-04-11 10:00:03,531 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] [2018-04-11 10:00:03,531 INFO L408 AbstractCegarLoop]: === Iteration 11 === [mainErr1RequiresViolation, mainErr2EnsuresViolationMEMORY_LEAK, mainErr0RequiresViolation, __U_MULTI_fopenbsd_cstpncpy_alloca_true_valid_memsafety_true_termination_i__cstpncpyErr2RequiresViolation, __U_MULTI_fopenbsd_cstpncpy_alloca_true_valid_memsafety_true_termination_i__cstpncpyErr12RequiresViolation, __U_MULTI_fopenbsd_cstpncpy_alloca_true_valid_memsafety_true_termination_i__cstpncpyErr17RequiresViolation, __U_MULTI_fopenbsd_cstpncpy_alloca_true_valid_memsafety_true_termination_i__cstpncpyErr3RequiresViolation, __U_MULTI_fopenbsd_cstpncpy_alloca_true_valid_memsafety_true_termination_i__cstpncpyErr6RequiresViolation, __U_MULTI_fopenbsd_cstpncpy_alloca_true_valid_memsafety_true_termination_i__cstpncpyErr13RequiresViolation, __U_MULTI_fopenbsd_cstpncpy_alloca_true_valid_memsafety_true_termination_i__cstpncpyErr8RequiresViolation, __U_MULTI_fopenbsd_cstpncpy_alloca_true_valid_memsafety_true_termination_i__cstpncpyErr1RequiresViolation, __U_MULTI_fopenbsd_cstpncpy_alloca_true_valid_memsafety_true_termination_i__cstpncpyErr0RequiresViolation, __U_MULTI_fopenbsd_cstpncpy_alloca_true_valid_memsafety_true_termination_i__cstpncpyErr9RequiresViolation, __U_MULTI_fopenbsd_cstpncpy_alloca_true_valid_memsafety_true_termination_i__cstpncpyErr10RequiresViolation, __U_MULTI_fopenbsd_cstpncpy_alloca_true_valid_memsafety_true_termination_i__cstpncpyErr15RequiresViolation, __U_MULTI_fopenbsd_cstpncpy_alloca_true_valid_memsafety_true_termination_i__cstpncpyErr5RequiresViolation, __U_MULTI_fopenbsd_cstpncpy_alloca_true_valid_memsafety_true_termination_i__cstpncpyErr4RequiresViolation, __U_MULTI_fopenbsd_cstpncpy_alloca_true_valid_memsafety_true_termination_i__cstpncpyErr11RequiresViolation, __U_MULTI_fopenbsd_cstpncpy_alloca_true_valid_memsafety_true_termination_i__cstpncpyErr16RequiresViolation, __U_MULTI_fopenbsd_cstpncpy_alloca_true_valid_memsafety_true_termination_i__cstpncpyErr7RequiresViolation, __U_MULTI_fopenbsd_cstpncpy_alloca_true_valid_memsafety_true_termination_i__cstpncpyErr14RequiresViolation]=== [2018-04-11 10:00:03,531 INFO L82 PathProgramCache]: Analyzing trace with hash 1331085243, now seen corresponding path program 1 times [2018-04-11 10:00:03,531 INFO L213 ckRefinementStrategy]: Switched to mode SMTINTERPOL_TREE_INTERPOLANTS [2018-04-11 10:00:03,531 INFO L68 tionRefinementEngine]: Using refinement strategy CamelRefinementStrategy [2018-04-11 10:00:03,532 INFO L119 rtionOrderModulation]: Craig nested/tree interpolation forces the following order [2018-04-11 10:00:03,532 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-04-11 10:00:03,532 INFO L119 rtionOrderModulation]: Craig nested/tree interpolation forces the following order [2018-04-11 10:00:03,542 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-04-11 10:00:03,548 WARN L137 erpolLogProxyWrapper]: Using partial proofs (cut at CNF-level). Set option :produce-proofs to true to get complete proofs. [2018-04-11 10:00:03,634 INFO L134 CoverageAnalysis]: Checked inductivity of 2 backedges. 2 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-04-11 10:00:03,635 INFO L320 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2018-04-11 10:00:03,635 INFO L335 seRefinementStrategy]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2018-04-11 10:00:03,635 INFO L442 AbstractCegarLoop]: Interpolant automaton has 6 states [2018-04-11 10:00:03,635 INFO L132 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2018-04-11 10:00:03,635 INFO L133 InterpolantAutomaton]: CoverageRelationStatistics Valid=9, Invalid=21, Unknown=0, NotChecked=0, Total=30 [2018-04-11 10:00:03,635 INFO L87 Difference]: Start difference. First operand 55 states and 59 transitions. Second operand 6 states. [2018-04-11 10:00:03,667 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-04-11 10:00:03,667 INFO L93 Difference]: Finished difference Result 99 states and 104 transitions. [2018-04-11 10:00:03,668 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2018-04-11 10:00:03,668 INFO L78 Accepts]: Start accepts. Automaton has 6 states. Word has length 31 [2018-04-11 10:00:03,668 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-04-11 10:00:03,668 INFO L225 Difference]: With dead ends: 99 [2018-04-11 10:00:03,668 INFO L226 Difference]: Without dead ends: 99 [2018-04-11 10:00:03,669 INFO L567 BasicCegarLoop]: 0 DeclaredPredicates, 8 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 6 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=17, Invalid=39, Unknown=0, NotChecked=0, Total=56 [2018-04-11 10:00:03,669 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 99 states. [2018-04-11 10:00:03,671 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 99 to 88. [2018-04-11 10:00:03,671 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 88 states. [2018-04-11 10:00:03,672 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 88 states to 88 states and 96 transitions. [2018-04-11 10:00:03,672 INFO L78 Accepts]: Start accepts. Automaton has 88 states and 96 transitions. Word has length 31 [2018-04-11 10:00:03,672 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-04-11 10:00:03,672 INFO L459 AbstractCegarLoop]: Abstraction has 88 states and 96 transitions. [2018-04-11 10:00:03,672 INFO L460 AbstractCegarLoop]: Interpolant automaton has 6 states. [2018-04-11 10:00:03,672 INFO L276 IsEmpty]: Start isEmpty. Operand 88 states and 96 transitions. [2018-04-11 10:00:03,673 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 32 [2018-04-11 10:00:03,673 INFO L347 BasicCegarLoop]: Found error trace [2018-04-11 10:00:03,673 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] [2018-04-11 10:00:03,673 INFO L408 AbstractCegarLoop]: === Iteration 12 === [mainErr1RequiresViolation, mainErr2EnsuresViolationMEMORY_LEAK, mainErr0RequiresViolation, __U_MULTI_fopenbsd_cstpncpy_alloca_true_valid_memsafety_true_termination_i__cstpncpyErr2RequiresViolation, __U_MULTI_fopenbsd_cstpncpy_alloca_true_valid_memsafety_true_termination_i__cstpncpyErr12RequiresViolation, __U_MULTI_fopenbsd_cstpncpy_alloca_true_valid_memsafety_true_termination_i__cstpncpyErr17RequiresViolation, __U_MULTI_fopenbsd_cstpncpy_alloca_true_valid_memsafety_true_termination_i__cstpncpyErr3RequiresViolation, __U_MULTI_fopenbsd_cstpncpy_alloca_true_valid_memsafety_true_termination_i__cstpncpyErr6RequiresViolation, __U_MULTI_fopenbsd_cstpncpy_alloca_true_valid_memsafety_true_termination_i__cstpncpyErr13RequiresViolation, __U_MULTI_fopenbsd_cstpncpy_alloca_true_valid_memsafety_true_termination_i__cstpncpyErr8RequiresViolation, __U_MULTI_fopenbsd_cstpncpy_alloca_true_valid_memsafety_true_termination_i__cstpncpyErr1RequiresViolation, __U_MULTI_fopenbsd_cstpncpy_alloca_true_valid_memsafety_true_termination_i__cstpncpyErr0RequiresViolation, __U_MULTI_fopenbsd_cstpncpy_alloca_true_valid_memsafety_true_termination_i__cstpncpyErr9RequiresViolation, __U_MULTI_fopenbsd_cstpncpy_alloca_true_valid_memsafety_true_termination_i__cstpncpyErr10RequiresViolation, __U_MULTI_fopenbsd_cstpncpy_alloca_true_valid_memsafety_true_termination_i__cstpncpyErr15RequiresViolation, __U_MULTI_fopenbsd_cstpncpy_alloca_true_valid_memsafety_true_termination_i__cstpncpyErr5RequiresViolation, __U_MULTI_fopenbsd_cstpncpy_alloca_true_valid_memsafety_true_termination_i__cstpncpyErr4RequiresViolation, __U_MULTI_fopenbsd_cstpncpy_alloca_true_valid_memsafety_true_termination_i__cstpncpyErr11RequiresViolation, __U_MULTI_fopenbsd_cstpncpy_alloca_true_valid_memsafety_true_termination_i__cstpncpyErr16RequiresViolation, __U_MULTI_fopenbsd_cstpncpy_alloca_true_valid_memsafety_true_termination_i__cstpncpyErr7RequiresViolation, __U_MULTI_fopenbsd_cstpncpy_alloca_true_valid_memsafety_true_termination_i__cstpncpyErr14RequiresViolation]=== [2018-04-11 10:00:03,673 INFO L82 PathProgramCache]: Analyzing trace with hash 1197071737, now seen corresponding path program 1 times [2018-04-11 10:00:03,673 INFO L213 ckRefinementStrategy]: Switched to mode SMTINTERPOL_TREE_INTERPOLANTS [2018-04-11 10:00:03,674 INFO L68 tionRefinementEngine]: Using refinement strategy CamelRefinementStrategy [2018-04-11 10:00:03,674 INFO L119 rtionOrderModulation]: Craig nested/tree interpolation forces the following order [2018-04-11 10:00:03,674 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-04-11 10:00:03,674 INFO L119 rtionOrderModulation]: Craig nested/tree interpolation forces the following order [2018-04-11 10:00:03,691 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-04-11 10:00:03,692 WARN L137 erpolLogProxyWrapper]: Using partial proofs (cut at CNF-level). Set option :produce-proofs to true to get complete proofs. [2018-04-11 10:00:03,780 INFO L134 CoverageAnalysis]: Checked inductivity of 2 backedges. 2 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-04-11 10:00:03,780 INFO L320 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2018-04-11 10:00:03,780 INFO L335 seRefinementStrategy]: Number of different interpolants: perfect sequences [11] imperfect sequences [] total 11 [2018-04-11 10:00:03,780 INFO L442 AbstractCegarLoop]: Interpolant automaton has 11 states [2018-04-11 10:00:03,781 INFO L132 InterpolantAutomaton]: Constructing interpolant automaton starting with 11 interpolants. [2018-04-11 10:00:03,781 INFO L133 InterpolantAutomaton]: CoverageRelationStatistics Valid=21, Invalid=89, Unknown=0, NotChecked=0, Total=110 [2018-04-11 10:00:03,781 INFO L87 Difference]: Start difference. First operand 88 states and 96 transitions. Second operand 11 states. [2018-04-11 10:00:03,926 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-04-11 10:00:03,926 INFO L93 Difference]: Finished difference Result 160 states and 172 transitions. [2018-04-11 10:00:03,926 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 12 states. [2018-04-11 10:00:03,926 INFO L78 Accepts]: Start accepts. Automaton has 11 states. Word has length 31 [2018-04-11 10:00:03,926 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-04-11 10:00:03,927 INFO L225 Difference]: With dead ends: 160 [2018-04-11 10:00:03,927 INFO L226 Difference]: Without dead ends: 160 [2018-04-11 10:00:03,927 INFO L567 BasicCegarLoop]: 0 DeclaredPredicates, 18 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 16 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 36 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=63, Invalid=243, Unknown=0, NotChecked=0, Total=306 [2018-04-11 10:00:03,928 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 160 states. [2018-04-11 10:00:03,930 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 160 to 120. [2018-04-11 10:00:03,930 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 120 states. [2018-04-11 10:00:03,931 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 120 states to 120 states and 132 transitions. [2018-04-11 10:00:03,933 INFO L78 Accepts]: Start accepts. Automaton has 120 states and 132 transitions. Word has length 31 [2018-04-11 10:00:03,933 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-04-11 10:00:03,933 INFO L459 AbstractCegarLoop]: Abstraction has 120 states and 132 transitions. [2018-04-11 10:00:03,933 INFO L460 AbstractCegarLoop]: Interpolant automaton has 11 states. [2018-04-11 10:00:03,933 INFO L276 IsEmpty]: Start isEmpty. Operand 120 states and 132 transitions. [2018-04-11 10:00:03,934 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 32 [2018-04-11 10:00:03,934 INFO L347 BasicCegarLoop]: Found error trace [2018-04-11 10:00:03,934 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] [2018-04-11 10:00:03,934 INFO L408 AbstractCegarLoop]: === Iteration 13 === [mainErr1RequiresViolation, mainErr2EnsuresViolationMEMORY_LEAK, mainErr0RequiresViolation, __U_MULTI_fopenbsd_cstpncpy_alloca_true_valid_memsafety_true_termination_i__cstpncpyErr2RequiresViolation, __U_MULTI_fopenbsd_cstpncpy_alloca_true_valid_memsafety_true_termination_i__cstpncpyErr12RequiresViolation, __U_MULTI_fopenbsd_cstpncpy_alloca_true_valid_memsafety_true_termination_i__cstpncpyErr17RequiresViolation, __U_MULTI_fopenbsd_cstpncpy_alloca_true_valid_memsafety_true_termination_i__cstpncpyErr3RequiresViolation, __U_MULTI_fopenbsd_cstpncpy_alloca_true_valid_memsafety_true_termination_i__cstpncpyErr6RequiresViolation, __U_MULTI_fopenbsd_cstpncpy_alloca_true_valid_memsafety_true_termination_i__cstpncpyErr13RequiresViolation, __U_MULTI_fopenbsd_cstpncpy_alloca_true_valid_memsafety_true_termination_i__cstpncpyErr8RequiresViolation, __U_MULTI_fopenbsd_cstpncpy_alloca_true_valid_memsafety_true_termination_i__cstpncpyErr1RequiresViolation, __U_MULTI_fopenbsd_cstpncpy_alloca_true_valid_memsafety_true_termination_i__cstpncpyErr0RequiresViolation, __U_MULTI_fopenbsd_cstpncpy_alloca_true_valid_memsafety_true_termination_i__cstpncpyErr9RequiresViolation, __U_MULTI_fopenbsd_cstpncpy_alloca_true_valid_memsafety_true_termination_i__cstpncpyErr10RequiresViolation, __U_MULTI_fopenbsd_cstpncpy_alloca_true_valid_memsafety_true_termination_i__cstpncpyErr15RequiresViolation, __U_MULTI_fopenbsd_cstpncpy_alloca_true_valid_memsafety_true_termination_i__cstpncpyErr5RequiresViolation, __U_MULTI_fopenbsd_cstpncpy_alloca_true_valid_memsafety_true_termination_i__cstpncpyErr4RequiresViolation, __U_MULTI_fopenbsd_cstpncpy_alloca_true_valid_memsafety_true_termination_i__cstpncpyErr11RequiresViolation, __U_MULTI_fopenbsd_cstpncpy_alloca_true_valid_memsafety_true_termination_i__cstpncpyErr16RequiresViolation, __U_MULTI_fopenbsd_cstpncpy_alloca_true_valid_memsafety_true_termination_i__cstpncpyErr7RequiresViolation, __U_MULTI_fopenbsd_cstpncpy_alloca_true_valid_memsafety_true_termination_i__cstpncpyErr14RequiresViolation]=== [2018-04-11 10:00:03,934 INFO L82 PathProgramCache]: Analyzing trace with hash 1337620347, now seen corresponding path program 1 times [2018-04-11 10:00:03,934 INFO L213 ckRefinementStrategy]: Switched to mode SMTINTERPOL_TREE_INTERPOLANTS [2018-04-11 10:00:03,934 INFO L68 tionRefinementEngine]: Using refinement strategy CamelRefinementStrategy [2018-04-11 10:00:03,935 INFO L119 rtionOrderModulation]: Craig nested/tree interpolation forces the following order [2018-04-11 10:00:03,935 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-04-11 10:00:03,935 INFO L119 rtionOrderModulation]: Craig nested/tree interpolation forces the following order [2018-04-11 10:00:03,952 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-04-11 10:00:03,953 WARN L137 erpolLogProxyWrapper]: Using partial proofs (cut at CNF-level). Set option :produce-proofs to true to get complete proofs. [2018-04-11 10:00:04,211 INFO L134 CoverageAnalysis]: Checked inductivity of 2 backedges. 0 proven. 2 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-04-11 10:00:04,211 INFO L308 seRefinementStrategy]: The current sequences of interpolants are not accepted, trying to find more. [2018-04-11 10:00:04,211 INFO L213 ckRefinementStrategy]: Switched to mode Z3_FP No working directory specified, using /home/ultimate/work/ultimate/releaseScripts/default/UAutomizer-linux/z3 Starting monitored process 2 with z3 -smt2 -in SMTLIB2_COMPLIANT=true -t:12000 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 2 with z3 -smt2 -in SMTLIB2_COMPLIANT=true -t:12000 [2018-04-11 10:00:04,219 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-04-11 10:00:04,250 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-04-11 10:00:04,258 INFO L270 TraceCheckSpWp]: Computing forward predicates... [2018-04-11 10:00:04,297 INFO L477 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 14 treesize of output 11 [2018-04-11 10:00:04,311 INFO L477 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 11 treesize of output 10 [2018-04-11 10:00:04,311 INFO L267 ElimStorePlain]: Start of recursive call 3: End of recursive call: and 1 xjuncts. [2018-04-11 10:00:04,313 INFO L267 ElimStorePlain]: Start of recursive call 2: 1 dim-1 vars, End of recursive call: and 1 xjuncts. [2018-04-11 10:00:04,320 INFO L267 ElimStorePlain]: Start of recursive call 1: 1 dim-0 vars, 1 dim-2 vars, End of recursive call: 1 dim-0 vars, and 1 xjuncts. [2018-04-11 10:00:04,321 INFO L202 ElimStorePlain]: Needed 3 recursive calls to eliminate 2 variables, input treesize:30, output treesize:26 [2018-04-11 10:00:04,396 INFO L700 Elim1Store]: detected not equals via solver [2018-04-11 10:00:04,398 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 14 treesize of output 17 [2018-04-11 10:00:04,399 INFO L267 ElimStorePlain]: Start of recursive call 2: End of recursive call: and 1 xjuncts. [2018-04-11 10:00:04,415 INFO L700 Elim1Store]: detected not equals via solver [2018-04-11 10:00:04,416 INFO L700 Elim1Store]: detected not equals via solver [2018-04-11 10:00:04,417 INFO L477 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 2 select indices, 2 select index equivalence classes, 2 disjoint index pairs (out of 1 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 11 treesize of output 4 [2018-04-11 10:00:04,417 INFO L267 ElimStorePlain]: Start of recursive call 3: End of recursive call: and 1 xjuncts. [2018-04-11 10:00:04,427 INFO L267 ElimStorePlain]: Start of recursive call 1: 3 dim-0 vars, 2 dim-1 vars, End of recursive call: 3 dim-0 vars, and 1 xjuncts. [2018-04-11 10:00:04,427 INFO L202 ElimStorePlain]: Needed 3 recursive calls to eliminate 5 variables, input treesize:40, output treesize:33 [2018-04-11 10:00:04,576 INFO L477 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 0 stores, 1 select indices, 1 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 20 treesize of output 16 [2018-04-11 10:00:04,582 INFO L477 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 2 select indices, 2 select index equivalence classes, 0 disjoint index pairs (out of 1 index pairs), introduced 0 new quantified variables, introduced 1 case distinctions, treesize of input 16 treesize of output 13 [2018-04-11 10:00:04,582 INFO L267 ElimStorePlain]: Start of recursive call 3: End of recursive call: and 2 xjuncts. [2018-04-11 10:00:04,585 INFO L267 ElimStorePlain]: Start of recursive call 2: 1 dim-1 vars, End of recursive call: and 2 xjuncts. [2018-04-11 10:00:04,602 INFO L267 ElimStorePlain]: Start of recursive call 1: 3 dim-0 vars, 1 dim-2 vars, End of recursive call: 2 dim-0 vars, and 2 xjuncts. [2018-04-11 10:00:04,603 INFO L202 ElimStorePlain]: Needed 3 recursive calls to eliminate 4 variables, input treesize:47, output treesize:47 [2018-04-11 10:00:04,751 INFO L134 CoverageAnalysis]: Checked inductivity of 2 backedges. 0 proven. 2 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-04-11 10:00:04,775 INFO L320 seRefinementStrategy]: Constructing automaton from 0 perfect and 2 imperfect interpolant sequences. [2018-04-11 10:00:04,776 INFO L335 seRefinementStrategy]: Number of different interpolants: perfect sequences [] imperfect sequences [12, 11] total 21 [2018-04-11 10:00:04,776 INFO L442 AbstractCegarLoop]: Interpolant automaton has 22 states [2018-04-11 10:00:04,776 INFO L132 InterpolantAutomaton]: Constructing interpolant automaton starting with 22 interpolants. [2018-04-11 10:00:04,776 INFO L133 InterpolantAutomaton]: CoverageRelationStatistics Valid=49, Invalid=413, Unknown=0, NotChecked=0, Total=462 [2018-04-11 10:00:04,776 INFO L87 Difference]: Start difference. First operand 120 states and 132 transitions. Second operand 22 states. [2018-04-11 10:00:05,623 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-04-11 10:00:05,624 INFO L93 Difference]: Finished difference Result 140 states and 155 transitions. [2018-04-11 10:00:05,624 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 15 states. [2018-04-11 10:00:05,624 INFO L78 Accepts]: Start accepts. Automaton has 22 states. Word has length 31 [2018-04-11 10:00:05,624 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-04-11 10:00:05,625 INFO L225 Difference]: With dead ends: 140 [2018-04-11 10:00:05,625 INFO L226 Difference]: Without dead ends: 140 [2018-04-11 10:00:05,625 INFO L567 BasicCegarLoop]: 0 DeclaredPredicates, 52 GetRequests, 22 SyntacticMatches, 1 SemanticMatches, 29 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 114 ImplicationChecksByTransitivity, 1.0s TimeCoverageRelationStatistics Valid=126, Invalid=804, Unknown=0, NotChecked=0, Total=930 [2018-04-11 10:00:05,626 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 140 states. [2018-04-11 10:00:05,629 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 140 to 125. [2018-04-11 10:00:05,629 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 125 states. [2018-04-11 10:00:05,629 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 125 states to 125 states and 139 transitions. [2018-04-11 10:00:05,629 INFO L78 Accepts]: Start accepts. Automaton has 125 states and 139 transitions. Word has length 31 [2018-04-11 10:00:05,630 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-04-11 10:00:05,630 INFO L459 AbstractCegarLoop]: Abstraction has 125 states and 139 transitions. [2018-04-11 10:00:05,630 INFO L460 AbstractCegarLoop]: Interpolant automaton has 22 states. [2018-04-11 10:00:05,630 INFO L276 IsEmpty]: Start isEmpty. Operand 125 states and 139 transitions. [2018-04-11 10:00:05,631 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 33 [2018-04-11 10:00:05,631 INFO L347 BasicCegarLoop]: Found error trace [2018-04-11 10:00:05,631 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] [2018-04-11 10:00:05,631 INFO L408 AbstractCegarLoop]: === Iteration 14 === [mainErr1RequiresViolation, mainErr2EnsuresViolationMEMORY_LEAK, mainErr0RequiresViolation, __U_MULTI_fopenbsd_cstpncpy_alloca_true_valid_memsafety_true_termination_i__cstpncpyErr2RequiresViolation, __U_MULTI_fopenbsd_cstpncpy_alloca_true_valid_memsafety_true_termination_i__cstpncpyErr12RequiresViolation, __U_MULTI_fopenbsd_cstpncpy_alloca_true_valid_memsafety_true_termination_i__cstpncpyErr17RequiresViolation, __U_MULTI_fopenbsd_cstpncpy_alloca_true_valid_memsafety_true_termination_i__cstpncpyErr3RequiresViolation, __U_MULTI_fopenbsd_cstpncpy_alloca_true_valid_memsafety_true_termination_i__cstpncpyErr6RequiresViolation, __U_MULTI_fopenbsd_cstpncpy_alloca_true_valid_memsafety_true_termination_i__cstpncpyErr13RequiresViolation, __U_MULTI_fopenbsd_cstpncpy_alloca_true_valid_memsafety_true_termination_i__cstpncpyErr8RequiresViolation, __U_MULTI_fopenbsd_cstpncpy_alloca_true_valid_memsafety_true_termination_i__cstpncpyErr1RequiresViolation, __U_MULTI_fopenbsd_cstpncpy_alloca_true_valid_memsafety_true_termination_i__cstpncpyErr0RequiresViolation, __U_MULTI_fopenbsd_cstpncpy_alloca_true_valid_memsafety_true_termination_i__cstpncpyErr9RequiresViolation, __U_MULTI_fopenbsd_cstpncpy_alloca_true_valid_memsafety_true_termination_i__cstpncpyErr10RequiresViolation, __U_MULTI_fopenbsd_cstpncpy_alloca_true_valid_memsafety_true_termination_i__cstpncpyErr15RequiresViolation, __U_MULTI_fopenbsd_cstpncpy_alloca_true_valid_memsafety_true_termination_i__cstpncpyErr5RequiresViolation, __U_MULTI_fopenbsd_cstpncpy_alloca_true_valid_memsafety_true_termination_i__cstpncpyErr4RequiresViolation, __U_MULTI_fopenbsd_cstpncpy_alloca_true_valid_memsafety_true_termination_i__cstpncpyErr11RequiresViolation, __U_MULTI_fopenbsd_cstpncpy_alloca_true_valid_memsafety_true_termination_i__cstpncpyErr16RequiresViolation, __U_MULTI_fopenbsd_cstpncpy_alloca_true_valid_memsafety_true_termination_i__cstpncpyErr7RequiresViolation, __U_MULTI_fopenbsd_cstpncpy_alloca_true_valid_memsafety_true_termination_i__cstpncpyErr14RequiresViolation]=== [2018-04-11 10:00:05,631 INFO L82 PathProgramCache]: Analyzing trace with hash 1927634698, now seen corresponding path program 1 times [2018-04-11 10:00:05,631 INFO L213 ckRefinementStrategy]: Switched to mode SMTINTERPOL_TREE_INTERPOLANTS [2018-04-11 10:00:05,631 INFO L68 tionRefinementEngine]: Using refinement strategy CamelRefinementStrategy [2018-04-11 10:00:05,632 INFO L119 rtionOrderModulation]: Craig nested/tree interpolation forces the following order [2018-04-11 10:00:05,632 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-04-11 10:00:05,632 INFO L119 rtionOrderModulation]: Craig nested/tree interpolation forces the following order [2018-04-11 10:00:05,640 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-04-11 10:00:05,640 WARN L137 erpolLogProxyWrapper]: Using partial proofs (cut at CNF-level). Set option :produce-proofs to true to get complete proofs. [2018-04-11 10:00:05,673 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-04-11 10:00:05,673 INFO L320 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2018-04-11 10:00:05,673 INFO L335 seRefinementStrategy]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2018-04-11 10:00:05,673 INFO L442 AbstractCegarLoop]: Interpolant automaton has 5 states [2018-04-11 10:00:05,673 INFO L132 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2018-04-11 10:00:05,673 INFO L133 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2018-04-11 10:00:05,673 INFO L87 Difference]: Start difference. First operand 125 states and 139 transitions. Second operand 5 states. [2018-04-11 10:00:05,712 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-04-11 10:00:05,712 INFO L93 Difference]: Finished difference Result 124 states and 136 transitions. [2018-04-11 10:00:05,713 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2018-04-11 10:00:05,713 INFO L78 Accepts]: Start accepts. Automaton has 5 states. Word has length 32 [2018-04-11 10:00:05,713 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-04-11 10:00:05,713 INFO L225 Difference]: With dead ends: 124 [2018-04-11 10:00:05,713 INFO L226 Difference]: Without dead ends: 124 [2018-04-11 10:00:05,713 INFO L567 BasicCegarLoop]: 0 DeclaredPredicates, 6 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 5 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=15, Invalid=27, Unknown=0, NotChecked=0, Total=42 [2018-04-11 10:00:05,714 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 124 states. [2018-04-11 10:00:05,716 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 124 to 124. [2018-04-11 10:00:05,716 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 124 states. [2018-04-11 10:00:05,716 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 124 states to 124 states and 136 transitions. [2018-04-11 10:00:05,716 INFO L78 Accepts]: Start accepts. Automaton has 124 states and 136 transitions. Word has length 32 [2018-04-11 10:00:05,717 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-04-11 10:00:05,717 INFO L459 AbstractCegarLoop]: Abstraction has 124 states and 136 transitions. [2018-04-11 10:00:05,717 INFO L460 AbstractCegarLoop]: Interpolant automaton has 5 states. [2018-04-11 10:00:05,717 INFO L276 IsEmpty]: Start isEmpty. Operand 124 states and 136 transitions. [2018-04-11 10:00:05,717 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 33 [2018-04-11 10:00:05,718 INFO L347 BasicCegarLoop]: Found error trace [2018-04-11 10:00:05,718 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] [2018-04-11 10:00:05,718 INFO L408 AbstractCegarLoop]: === Iteration 15 === [mainErr1RequiresViolation, mainErr2EnsuresViolationMEMORY_LEAK, mainErr0RequiresViolation, __U_MULTI_fopenbsd_cstpncpy_alloca_true_valid_memsafety_true_termination_i__cstpncpyErr2RequiresViolation, __U_MULTI_fopenbsd_cstpncpy_alloca_true_valid_memsafety_true_termination_i__cstpncpyErr12RequiresViolation, __U_MULTI_fopenbsd_cstpncpy_alloca_true_valid_memsafety_true_termination_i__cstpncpyErr17RequiresViolation, __U_MULTI_fopenbsd_cstpncpy_alloca_true_valid_memsafety_true_termination_i__cstpncpyErr3RequiresViolation, __U_MULTI_fopenbsd_cstpncpy_alloca_true_valid_memsafety_true_termination_i__cstpncpyErr6RequiresViolation, __U_MULTI_fopenbsd_cstpncpy_alloca_true_valid_memsafety_true_termination_i__cstpncpyErr13RequiresViolation, __U_MULTI_fopenbsd_cstpncpy_alloca_true_valid_memsafety_true_termination_i__cstpncpyErr8RequiresViolation, __U_MULTI_fopenbsd_cstpncpy_alloca_true_valid_memsafety_true_termination_i__cstpncpyErr1RequiresViolation, __U_MULTI_fopenbsd_cstpncpy_alloca_true_valid_memsafety_true_termination_i__cstpncpyErr0RequiresViolation, __U_MULTI_fopenbsd_cstpncpy_alloca_true_valid_memsafety_true_termination_i__cstpncpyErr9RequiresViolation, __U_MULTI_fopenbsd_cstpncpy_alloca_true_valid_memsafety_true_termination_i__cstpncpyErr10RequiresViolation, __U_MULTI_fopenbsd_cstpncpy_alloca_true_valid_memsafety_true_termination_i__cstpncpyErr15RequiresViolation, __U_MULTI_fopenbsd_cstpncpy_alloca_true_valid_memsafety_true_termination_i__cstpncpyErr5RequiresViolation, __U_MULTI_fopenbsd_cstpncpy_alloca_true_valid_memsafety_true_termination_i__cstpncpyErr4RequiresViolation, __U_MULTI_fopenbsd_cstpncpy_alloca_true_valid_memsafety_true_termination_i__cstpncpyErr11RequiresViolation, __U_MULTI_fopenbsd_cstpncpy_alloca_true_valid_memsafety_true_termination_i__cstpncpyErr16RequiresViolation, __U_MULTI_fopenbsd_cstpncpy_alloca_true_valid_memsafety_true_termination_i__cstpncpyErr7RequiresViolation, __U_MULTI_fopenbsd_cstpncpy_alloca_true_valid_memsafety_true_termination_i__cstpncpyErr14RequiresViolation]=== [2018-04-11 10:00:05,718 INFO L82 PathProgramCache]: Analyzing trace with hash 1927634699, now seen corresponding path program 1 times [2018-04-11 10:00:05,718 INFO L213 ckRefinementStrategy]: Switched to mode SMTINTERPOL_TREE_INTERPOLANTS [2018-04-11 10:00:05,718 INFO L68 tionRefinementEngine]: Using refinement strategy CamelRefinementStrategy [2018-04-11 10:00:05,719 INFO L119 rtionOrderModulation]: Craig nested/tree interpolation forces the following order [2018-04-11 10:00:05,719 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-04-11 10:00:05,719 INFO L119 rtionOrderModulation]: Craig nested/tree interpolation forces the following order [2018-04-11 10:00:05,725 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-04-11 10:00:05,726 WARN L137 erpolLogProxyWrapper]: Using partial proofs (cut at CNF-level). Set option :produce-proofs to true to get complete proofs. [2018-04-11 10:00:05,767 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-04-11 10:00:05,768 INFO L320 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2018-04-11 10:00:05,768 INFO L335 seRefinementStrategy]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2018-04-11 10:00:05,768 INFO L442 AbstractCegarLoop]: Interpolant automaton has 6 states [2018-04-11 10:00:05,768 INFO L132 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2018-04-11 10:00:05,768 INFO L133 InterpolantAutomaton]: CoverageRelationStatistics Valid=9, Invalid=21, Unknown=0, NotChecked=0, Total=30 [2018-04-11 10:00:05,768 INFO L87 Difference]: Start difference. First operand 124 states and 136 transitions. Second operand 6 states. [2018-04-11 10:00:05,813 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-04-11 10:00:05,813 INFO L93 Difference]: Finished difference Result 158 states and 167 transitions. [2018-04-11 10:00:05,814 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2018-04-11 10:00:05,814 INFO L78 Accepts]: Start accepts. Automaton has 6 states. Word has length 32 [2018-04-11 10:00:05,814 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-04-11 10:00:05,815 INFO L225 Difference]: With dead ends: 158 [2018-04-11 10:00:05,815 INFO L226 Difference]: Without dead ends: 158 [2018-04-11 10:00:05,815 INFO L567 BasicCegarLoop]: 0 DeclaredPredicates, 8 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 6 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=17, Invalid=39, Unknown=0, NotChecked=0, Total=56 [2018-04-11 10:00:05,816 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 158 states. [2018-04-11 10:00:05,818 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 158 to 151. [2018-04-11 10:00:05,819 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 151 states. [2018-04-11 10:00:05,819 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 151 states to 151 states and 161 transitions. [2018-04-11 10:00:05,820 INFO L78 Accepts]: Start accepts. Automaton has 151 states and 161 transitions. Word has length 32 [2018-04-11 10:00:05,820 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-04-11 10:00:05,820 INFO L459 AbstractCegarLoop]: Abstraction has 151 states and 161 transitions. [2018-04-11 10:00:05,820 INFO L460 AbstractCegarLoop]: Interpolant automaton has 6 states. [2018-04-11 10:00:05,820 INFO L276 IsEmpty]: Start isEmpty. Operand 151 states and 161 transitions. [2018-04-11 10:00:05,821 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 33 [2018-04-11 10:00:05,821 INFO L347 BasicCegarLoop]: Found error trace [2018-04-11 10:00:05,821 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] [2018-04-11 10:00:05,821 INFO L408 AbstractCegarLoop]: === Iteration 16 === [mainErr1RequiresViolation, mainErr2EnsuresViolationMEMORY_LEAK, mainErr0RequiresViolation, __U_MULTI_fopenbsd_cstpncpy_alloca_true_valid_memsafety_true_termination_i__cstpncpyErr2RequiresViolation, __U_MULTI_fopenbsd_cstpncpy_alloca_true_valid_memsafety_true_termination_i__cstpncpyErr12RequiresViolation, __U_MULTI_fopenbsd_cstpncpy_alloca_true_valid_memsafety_true_termination_i__cstpncpyErr17RequiresViolation, __U_MULTI_fopenbsd_cstpncpy_alloca_true_valid_memsafety_true_termination_i__cstpncpyErr3RequiresViolation, __U_MULTI_fopenbsd_cstpncpy_alloca_true_valid_memsafety_true_termination_i__cstpncpyErr6RequiresViolation, __U_MULTI_fopenbsd_cstpncpy_alloca_true_valid_memsafety_true_termination_i__cstpncpyErr13RequiresViolation, __U_MULTI_fopenbsd_cstpncpy_alloca_true_valid_memsafety_true_termination_i__cstpncpyErr8RequiresViolation, __U_MULTI_fopenbsd_cstpncpy_alloca_true_valid_memsafety_true_termination_i__cstpncpyErr1RequiresViolation, __U_MULTI_fopenbsd_cstpncpy_alloca_true_valid_memsafety_true_termination_i__cstpncpyErr0RequiresViolation, __U_MULTI_fopenbsd_cstpncpy_alloca_true_valid_memsafety_true_termination_i__cstpncpyErr9RequiresViolation, __U_MULTI_fopenbsd_cstpncpy_alloca_true_valid_memsafety_true_termination_i__cstpncpyErr10RequiresViolation, __U_MULTI_fopenbsd_cstpncpy_alloca_true_valid_memsafety_true_termination_i__cstpncpyErr15RequiresViolation, __U_MULTI_fopenbsd_cstpncpy_alloca_true_valid_memsafety_true_termination_i__cstpncpyErr5RequiresViolation, __U_MULTI_fopenbsd_cstpncpy_alloca_true_valid_memsafety_true_termination_i__cstpncpyErr4RequiresViolation, __U_MULTI_fopenbsd_cstpncpy_alloca_true_valid_memsafety_true_termination_i__cstpncpyErr11RequiresViolation, __U_MULTI_fopenbsd_cstpncpy_alloca_true_valid_memsafety_true_termination_i__cstpncpyErr16RequiresViolation, __U_MULTI_fopenbsd_cstpncpy_alloca_true_valid_memsafety_true_termination_i__cstpncpyErr7RequiresViolation, __U_MULTI_fopenbsd_cstpncpy_alloca_true_valid_memsafety_true_termination_i__cstpncpyErr14RequiresViolation]=== [2018-04-11 10:00:05,821 INFO L82 PathProgramCache]: Analyzing trace with hash 2068183309, now seen corresponding path program 1 times [2018-04-11 10:00:05,821 INFO L213 ckRefinementStrategy]: Switched to mode SMTINTERPOL_TREE_INTERPOLANTS [2018-04-11 10:00:05,821 INFO L68 tionRefinementEngine]: Using refinement strategy CamelRefinementStrategy [2018-04-11 10:00:05,822 INFO L119 rtionOrderModulation]: Craig nested/tree interpolation forces the following order [2018-04-11 10:00:05,822 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-04-11 10:00:05,822 INFO L119 rtionOrderModulation]: Craig nested/tree interpolation forces the following order [2018-04-11 10:00:05,834 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-04-11 10:00:05,835 WARN L137 erpolLogProxyWrapper]: Using partial proofs (cut at CNF-level). Set option :produce-proofs to true to get complete proofs. [2018-04-11 10:00:06,206 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-04-11 10:00:06,206 INFO L320 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2018-04-11 10:00:06,206 INFO L335 seRefinementStrategy]: Number of different interpolants: perfect sequences [17] imperfect sequences [] total 17 [2018-04-11 10:00:06,206 INFO L442 AbstractCegarLoop]: Interpolant automaton has 18 states [2018-04-11 10:00:06,206 INFO L132 InterpolantAutomaton]: Constructing interpolant automaton starting with 18 interpolants. [2018-04-11 10:00:06,206 INFO L133 InterpolantAutomaton]: CoverageRelationStatistics Valid=40, Invalid=266, Unknown=0, NotChecked=0, Total=306 [2018-04-11 10:00:06,206 INFO L87 Difference]: Start difference. First operand 151 states and 161 transitions. Second operand 18 states. [2018-04-11 10:00:07,047 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-04-11 10:00:07,047 INFO L93 Difference]: Finished difference Result 162 states and 174 transitions. [2018-04-11 10:00:07,048 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 19 states. [2018-04-11 10:00:07,048 INFO L78 Accepts]: Start accepts. Automaton has 18 states. Word has length 32 [2018-04-11 10:00:07,048 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-04-11 10:00:07,049 INFO L225 Difference]: With dead ends: 162 [2018-04-11 10:00:07,049 INFO L226 Difference]: Without dead ends: 162 [2018-04-11 10:00:07,050 INFO L567 BasicCegarLoop]: 0 DeclaredPredicates, 30 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 29 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 168 ImplicationChecksByTransitivity, 0.8s TimeCoverageRelationStatistics Valid=120, Invalid=810, Unknown=0, NotChecked=0, Total=930 [2018-04-11 10:00:07,050 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 162 states. [2018-04-11 10:00:07,054 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 162 to 160. [2018-04-11 10:00:07,054 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 160 states. [2018-04-11 10:00:07,054 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 160 states to 160 states and 172 transitions. [2018-04-11 10:00:07,054 INFO L78 Accepts]: Start accepts. Automaton has 160 states and 172 transitions. Word has length 32 [2018-04-11 10:00:07,055 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-04-11 10:00:07,055 INFO L459 AbstractCegarLoop]: Abstraction has 160 states and 172 transitions. [2018-04-11 10:00:07,055 INFO L460 AbstractCegarLoop]: Interpolant automaton has 18 states. [2018-04-11 10:00:07,055 INFO L276 IsEmpty]: Start isEmpty. Operand 160 states and 172 transitions. [2018-04-11 10:00:07,055 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 33 [2018-04-11 10:00:07,055 INFO L347 BasicCegarLoop]: Found error trace [2018-04-11 10:00:07,055 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] [2018-04-11 10:00:07,055 INFO L408 AbstractCegarLoop]: === Iteration 17 === [mainErr1RequiresViolation, mainErr2EnsuresViolationMEMORY_LEAK, mainErr0RequiresViolation, __U_MULTI_fopenbsd_cstpncpy_alloca_true_valid_memsafety_true_termination_i__cstpncpyErr2RequiresViolation, __U_MULTI_fopenbsd_cstpncpy_alloca_true_valid_memsafety_true_termination_i__cstpncpyErr12RequiresViolation, __U_MULTI_fopenbsd_cstpncpy_alloca_true_valid_memsafety_true_termination_i__cstpncpyErr17RequiresViolation, __U_MULTI_fopenbsd_cstpncpy_alloca_true_valid_memsafety_true_termination_i__cstpncpyErr3RequiresViolation, __U_MULTI_fopenbsd_cstpncpy_alloca_true_valid_memsafety_true_termination_i__cstpncpyErr6RequiresViolation, __U_MULTI_fopenbsd_cstpncpy_alloca_true_valid_memsafety_true_termination_i__cstpncpyErr13RequiresViolation, __U_MULTI_fopenbsd_cstpncpy_alloca_true_valid_memsafety_true_termination_i__cstpncpyErr8RequiresViolation, __U_MULTI_fopenbsd_cstpncpy_alloca_true_valid_memsafety_true_termination_i__cstpncpyErr1RequiresViolation, __U_MULTI_fopenbsd_cstpncpy_alloca_true_valid_memsafety_true_termination_i__cstpncpyErr0RequiresViolation, __U_MULTI_fopenbsd_cstpncpy_alloca_true_valid_memsafety_true_termination_i__cstpncpyErr9RequiresViolation, __U_MULTI_fopenbsd_cstpncpy_alloca_true_valid_memsafety_true_termination_i__cstpncpyErr10RequiresViolation, __U_MULTI_fopenbsd_cstpncpy_alloca_true_valid_memsafety_true_termination_i__cstpncpyErr15RequiresViolation, __U_MULTI_fopenbsd_cstpncpy_alloca_true_valid_memsafety_true_termination_i__cstpncpyErr5RequiresViolation, __U_MULTI_fopenbsd_cstpncpy_alloca_true_valid_memsafety_true_termination_i__cstpncpyErr4RequiresViolation, __U_MULTI_fopenbsd_cstpncpy_alloca_true_valid_memsafety_true_termination_i__cstpncpyErr11RequiresViolation, __U_MULTI_fopenbsd_cstpncpy_alloca_true_valid_memsafety_true_termination_i__cstpncpyErr16RequiresViolation, __U_MULTI_fopenbsd_cstpncpy_alloca_true_valid_memsafety_true_termination_i__cstpncpyErr7RequiresViolation, __U_MULTI_fopenbsd_cstpncpy_alloca_true_valid_memsafety_true_termination_i__cstpncpyErr14RequiresViolation]=== [2018-04-11 10:00:07,055 INFO L82 PathProgramCache]: Analyzing trace with hash -1483442203, now seen corresponding path program 1 times [2018-04-11 10:00:07,056 INFO L213 ckRefinementStrategy]: Switched to mode SMTINTERPOL_TREE_INTERPOLANTS [2018-04-11 10:00:07,056 INFO L68 tionRefinementEngine]: Using refinement strategy CamelRefinementStrategy [2018-04-11 10:00:07,056 INFO L119 rtionOrderModulation]: Craig nested/tree interpolation forces the following order [2018-04-11 10:00:07,056 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-04-11 10:00:07,056 INFO L119 rtionOrderModulation]: Craig nested/tree interpolation forces the following order [2018-04-11 10:00:07,068 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-04-11 10:00:07,069 WARN L137 erpolLogProxyWrapper]: Using partial proofs (cut at CNF-level). Set option :produce-proofs to true to get complete proofs. [2018-04-11 10:00:07,391 INFO L134 CoverageAnalysis]: Checked inductivity of 3 backedges. 0 proven. 3 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-04-11 10:00:07,391 INFO L308 seRefinementStrategy]: The current sequences of interpolants are not accepted, trying to find more. [2018-04-11 10:00:07,391 INFO L213 ckRefinementStrategy]: Switched to mode Z3_FP No working directory specified, using /home/ultimate/work/ultimate/releaseScripts/default/UAutomizer-linux/z3 Starting monitored process 3 with z3 -smt2 -in SMTLIB2_COMPLIANT=true -t:12000 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 3 with z3 -smt2 -in SMTLIB2_COMPLIANT=true -t:12000 [2018-04-11 10:00:07,396 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-04-11 10:00:07,415 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-04-11 10:00:07,417 INFO L270 TraceCheckSpWp]: Computing forward predicates... [2018-04-11 10:00:07,420 INFO L477 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 6 treesize of output 5 [2018-04-11 10:00:07,421 INFO L267 ElimStorePlain]: Start of recursive call 2: End of recursive call: and 1 xjuncts. [2018-04-11 10:00:07,425 INFO L477 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 6 treesize of output 5 [2018-04-11 10:00:07,425 INFO L267 ElimStorePlain]: Start of recursive call 3: End of recursive call: and 1 xjuncts. [2018-04-11 10:00:07,428 INFO L267 ElimStorePlain]: Start of recursive call 1: 2 dim-1 vars, End of recursive call: and 1 xjuncts. [2018-04-11 10:00:07,428 INFO L202 ElimStorePlain]: Needed 3 recursive calls to eliminate 2 variables, input treesize:16, output treesize:14 [2018-04-11 10:00:07,461 INFO L700 Elim1Store]: detected not equals via solver [2018-04-11 10:00:07,462 INFO L477 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 1 select indices, 1 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 12 treesize of output 15 [2018-04-11 10:00:07,462 INFO L267 ElimStorePlain]: Start of recursive call 2: End of recursive call: and 1 xjuncts. [2018-04-11 10:00:07,469 INFO L700 Elim1Store]: detected not equals via solver [2018-04-11 10:00:07,469 INFO L700 Elim1Store]: detected not equals via solver [2018-04-11 10:00:07,470 INFO L477 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 2 select indices, 2 select index equivalence classes, 2 disjoint index pairs (out of 1 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 11 treesize of output 4 [2018-04-11 10:00:07,470 INFO L267 ElimStorePlain]: Start of recursive call 3: End of recursive call: and 1 xjuncts. [2018-04-11 10:00:07,473 INFO L267 ElimStorePlain]: Start of recursive call 1: 1 dim-0 vars, 2 dim-1 vars, End of recursive call: and 1 xjuncts. [2018-04-11 10:00:07,473 INFO L202 ElimStorePlain]: Needed 3 recursive calls to eliminate 3 variables, input treesize:25, output treesize:13 [2018-04-11 10:00:07,538 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 2 case distinctions, treesize of input 12 treesize of output 15 [2018-04-11 10:00:07,539 INFO L267 ElimStorePlain]: Start of recursive call 2: End of recursive call: and 2 xjuncts. [2018-04-11 10:00:07,545 INFO L267 ElimStorePlain]: Start of recursive call 1: 1 dim-1 vars, End of recursive call: and 2 xjuncts. [2018-04-11 10:00:07,546 INFO L202 ElimStorePlain]: Needed 2 recursive calls to eliminate 1 variables, input treesize:15, output treesize:27 [2018-04-11 10:00:07,572 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 28 treesize of output 25 [2018-04-11 10:00:07,574 INFO L477 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 8 treesize of output 7 [2018-04-11 10:00:07,574 INFO L267 ElimStorePlain]: Start of recursive call 3: End of recursive call: and 1 xjuncts. [2018-04-11 10:00:07,578 INFO L267 ElimStorePlain]: Start of recursive call 2: 1 dim-1 vars, End of recursive call: and 1 xjuncts. [2018-04-11 10:00:07,592 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 24 treesize of output 21 [2018-04-11 10:00:07,594 INFO L477 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 8 treesize of output 7 [2018-04-11 10:00:07,595 INFO L267 ElimStorePlain]: Start of recursive call 5: End of recursive call: and 1 xjuncts. [2018-04-11 10:00:07,597 INFO L267 ElimStorePlain]: Start of recursive call 4: 1 dim-1 vars, End of recursive call: and 1 xjuncts. [2018-04-11 10:00:07,608 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 33 treesize of output 30 [2018-04-11 10:00:07,609 INFO L477 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 8 treesize of output 7 [2018-04-11 10:00:07,609 INFO L267 ElimStorePlain]: Start of recursive call 7: End of recursive call: and 1 xjuncts. [2018-04-11 10:00:07,614 INFO L267 ElimStorePlain]: Start of recursive call 6: 1 dim-1 vars, End of recursive call: and 1 xjuncts. [2018-04-11 10:00:07,624 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 29 treesize of output 26 [2018-04-11 10:00:07,625 INFO L477 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 8 treesize of output 7 [2018-04-11 10:00:07,626 INFO L267 ElimStorePlain]: Start of recursive call 9: End of recursive call: and 1 xjuncts. [2018-04-11 10:00:07,629 INFO L267 ElimStorePlain]: Start of recursive call 8: 1 dim-1 vars, End of recursive call: and 1 xjuncts. [2018-04-11 10:00:07,638 INFO L267 ElimStorePlain]: Start of recursive call 1: 1 dim-0 vars, 4 dim-2 vars, End of recursive call: and 2 xjuncts. [2018-04-11 10:00:07,638 INFO L202 ElimStorePlain]: Needed 9 recursive calls to eliminate 5 variables, input treesize:62, output treesize:43 [2018-04-11 10:00:07,708 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 36 treesize of output 32 [2018-04-11 10:00:07,710 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 13 treesize of output 5 [2018-04-11 10:00:07,710 INFO L267 ElimStorePlain]: Start of recursive call 3: End of recursive call: and 1 xjuncts. [2018-04-11 10:00:07,715 INFO L267 ElimStorePlain]: Start of recursive call 2: 1 dim-1 vars, End of recursive call: and 1 xjuncts. [2018-04-11 10:00:07,727 INFO L477 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 0 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 25 treesize of output 21 [2018-04-11 10:00:07,728 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 11 treesize of output 3 [2018-04-11 10:00:07,729 INFO L267 ElimStorePlain]: Start of recursive call 5: End of recursive call: and 1 xjuncts. [2018-04-11 10:00:07,731 INFO L267 ElimStorePlain]: Start of recursive call 4: 1 dim-1 vars, End of recursive call: and 1 xjuncts. [2018-04-11 10:00:07,747 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 34 treesize of output 30 [2018-04-11 10:00:07,749 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 11 treesize of output 3 [2018-04-11 10:00:07,749 INFO L267 ElimStorePlain]: Start of recursive call 7: End of recursive call: and 1 xjuncts. [2018-04-11 10:00:07,752 INFO L267 ElimStorePlain]: Start of recursive call 6: 1 dim-1 vars, End of recursive call: and 1 xjuncts. [2018-04-11 10:00:07,759 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 23 treesize of output 19 [2018-04-11 10:00:07,760 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 11 treesize of output 3 [2018-04-11 10:00:07,760 INFO L267 ElimStorePlain]: Start of recursive call 9: End of recursive call: and 1 xjuncts. [2018-04-11 10:00:07,762 INFO L267 ElimStorePlain]: Start of recursive call 8: 1 dim-1 vars, End of recursive call: and 1 xjuncts. [2018-04-11 10:00:07,768 INFO L267 ElimStorePlain]: Start of recursive call 1: 4 dim-0 vars, 4 dim-2 vars, End of recursive call: 1 dim-0 vars, and 2 xjuncts. [2018-04-11 10:00:07,769 INFO L202 ElimStorePlain]: Needed 9 recursive calls to eliminate 8 variables, input treesize:71, output treesize:24 [2018-04-11 10:00:08,068 INFO L134 CoverageAnalysis]: Checked inductivity of 3 backedges. 0 proven. 3 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-04-11 10:00:08,087 INFO L320 seRefinementStrategy]: Constructing automaton from 0 perfect and 2 imperfect interpolant sequences. [2018-04-11 10:00:08,087 INFO L335 seRefinementStrategy]: Number of different interpolants: perfect sequences [] imperfect sequences [18, 16] total 33 [2018-04-11 10:00:08,087 INFO L442 AbstractCegarLoop]: Interpolant automaton has 34 states [2018-04-11 10:00:08,087 INFO L132 InterpolantAutomaton]: Constructing interpolant automaton starting with 34 interpolants. [2018-04-11 10:00:08,087 INFO L133 InterpolantAutomaton]: CoverageRelationStatistics Valid=82, Invalid=1040, Unknown=0, NotChecked=0, Total=1122 [2018-04-11 10:00:08,088 INFO L87 Difference]: Start difference. First operand 160 states and 172 transitions. Second operand 34 states. [2018-04-11 10:00:08,664 WARN L151 SmtUtils]: Spent 104ms on a formula simplification. DAG size of input: 66 DAG size of output 48 [2018-04-11 10:00:09,313 WARN L151 SmtUtils]: Spent 106ms on a formula simplification. DAG size of input: 59 DAG size of output 40 [2018-04-11 10:00:09,947 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-04-11 10:00:09,947 INFO L93 Difference]: Finished difference Result 162 states and 175 transitions. [2018-04-11 10:00:09,947 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 22 states. [2018-04-11 10:00:09,947 INFO L78 Accepts]: Start accepts. Automaton has 34 states. Word has length 32 [2018-04-11 10:00:09,947 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-04-11 10:00:09,948 INFO L225 Difference]: With dead ends: 162 [2018-04-11 10:00:09,948 INFO L226 Difference]: Without dead ends: 162 [2018-04-11 10:00:09,948 INFO L567 BasicCegarLoop]: 0 DeclaredPredicates, 67 GetRequests, 17 SyntacticMatches, 1 SemanticMatches, 49 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 420 ImplicationChecksByTransitivity, 2.0s TimeCoverageRelationStatistics Valid=237, Invalid=2313, Unknown=0, NotChecked=0, Total=2550 [2018-04-11 10:00:09,949 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 162 states. [2018-04-11 10:00:09,951 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 162 to 161. [2018-04-11 10:00:09,952 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 161 states. [2018-04-11 10:00:09,952 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 161 states to 161 states and 173 transitions. [2018-04-11 10:00:09,952 INFO L78 Accepts]: Start accepts. Automaton has 161 states and 173 transitions. Word has length 32 [2018-04-11 10:00:09,952 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-04-11 10:00:09,952 INFO L459 AbstractCegarLoop]: Abstraction has 161 states and 173 transitions. [2018-04-11 10:00:09,953 INFO L460 AbstractCegarLoop]: Interpolant automaton has 34 states. [2018-04-11 10:00:09,953 INFO L276 IsEmpty]: Start isEmpty. Operand 161 states and 173 transitions. [2018-04-11 10:00:09,953 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 38 [2018-04-11 10:00:09,953 INFO L347 BasicCegarLoop]: Found error trace [2018-04-11 10:00:09,953 INFO L355 BasicCegarLoop]: trace histogram [2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2018-04-11 10:00:09,953 INFO L408 AbstractCegarLoop]: === Iteration 18 === [mainErr1RequiresViolation, mainErr2EnsuresViolationMEMORY_LEAK, mainErr0RequiresViolation, __U_MULTI_fopenbsd_cstpncpy_alloca_true_valid_memsafety_true_termination_i__cstpncpyErr2RequiresViolation, __U_MULTI_fopenbsd_cstpncpy_alloca_true_valid_memsafety_true_termination_i__cstpncpyErr12RequiresViolation, __U_MULTI_fopenbsd_cstpncpy_alloca_true_valid_memsafety_true_termination_i__cstpncpyErr17RequiresViolation, __U_MULTI_fopenbsd_cstpncpy_alloca_true_valid_memsafety_true_termination_i__cstpncpyErr3RequiresViolation, __U_MULTI_fopenbsd_cstpncpy_alloca_true_valid_memsafety_true_termination_i__cstpncpyErr6RequiresViolation, __U_MULTI_fopenbsd_cstpncpy_alloca_true_valid_memsafety_true_termination_i__cstpncpyErr13RequiresViolation, __U_MULTI_fopenbsd_cstpncpy_alloca_true_valid_memsafety_true_termination_i__cstpncpyErr8RequiresViolation, __U_MULTI_fopenbsd_cstpncpy_alloca_true_valid_memsafety_true_termination_i__cstpncpyErr1RequiresViolation, __U_MULTI_fopenbsd_cstpncpy_alloca_true_valid_memsafety_true_termination_i__cstpncpyErr0RequiresViolation, __U_MULTI_fopenbsd_cstpncpy_alloca_true_valid_memsafety_true_termination_i__cstpncpyErr9RequiresViolation, __U_MULTI_fopenbsd_cstpncpy_alloca_true_valid_memsafety_true_termination_i__cstpncpyErr10RequiresViolation, __U_MULTI_fopenbsd_cstpncpy_alloca_true_valid_memsafety_true_termination_i__cstpncpyErr15RequiresViolation, __U_MULTI_fopenbsd_cstpncpy_alloca_true_valid_memsafety_true_termination_i__cstpncpyErr5RequiresViolation, __U_MULTI_fopenbsd_cstpncpy_alloca_true_valid_memsafety_true_termination_i__cstpncpyErr4RequiresViolation, __U_MULTI_fopenbsd_cstpncpy_alloca_true_valid_memsafety_true_termination_i__cstpncpyErr11RequiresViolation, __U_MULTI_fopenbsd_cstpncpy_alloca_true_valid_memsafety_true_termination_i__cstpncpyErr16RequiresViolation, __U_MULTI_fopenbsd_cstpncpy_alloca_true_valid_memsafety_true_termination_i__cstpncpyErr7RequiresViolation, __U_MULTI_fopenbsd_cstpncpy_alloca_true_valid_memsafety_true_termination_i__cstpncpyErr14RequiresViolation]=== [2018-04-11 10:00:09,953 INFO L82 PathProgramCache]: Analyzing trace with hash -972656883, now seen corresponding path program 1 times [2018-04-11 10:00:09,953 INFO L213 ckRefinementStrategy]: Switched to mode SMTINTERPOL_TREE_INTERPOLANTS [2018-04-11 10:00:09,954 INFO L68 tionRefinementEngine]: Using refinement strategy CamelRefinementStrategy [2018-04-11 10:00:09,954 INFO L119 rtionOrderModulation]: Craig nested/tree interpolation forces the following order [2018-04-11 10:00:09,954 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-04-11 10:00:09,954 INFO L119 rtionOrderModulation]: Craig nested/tree interpolation forces the following order [2018-04-11 10:00:09,969 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-04-11 10:00:09,970 WARN L137 erpolLogProxyWrapper]: Using partial proofs (cut at CNF-level). Set option :produce-proofs to true to get complete proofs. [2018-04-11 10:00:10,540 INFO L134 CoverageAnalysis]: Checked inductivity of 4 backedges. 0 proven. 4 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-04-11 10:00:10,540 INFO L308 seRefinementStrategy]: The current sequences of interpolants are not accepted, trying to find more. [2018-04-11 10:00:10,540 INFO L213 ckRefinementStrategy]: Switched to mode Z3_FP No working directory specified, using /home/ultimate/work/ultimate/releaseScripts/default/UAutomizer-linux/z3 Starting monitored process 4 with z3 -smt2 -in SMTLIB2_COMPLIANT=true -t:12000 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 4 with z3 -smt2 -in SMTLIB2_COMPLIANT=true -t:12000 [2018-04-11 10:00:10,545 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-04-11 10:00:10,567 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-04-11 10:00:10,570 INFO L270 TraceCheckSpWp]: Computing forward predicates... [2018-04-11 10:00:10,573 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 [2018-04-11 10:00:10,573 INFO L267 ElimStorePlain]: Start of recursive call 2: End of recursive call: and 1 xjuncts. [2018-04-11 10:00:10,577 INFO L477 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 6 treesize of output 5 [2018-04-11 10:00:10,577 INFO L267 ElimStorePlain]: Start of recursive call 3: End of recursive call: and 1 xjuncts. [2018-04-11 10:00:10,580 INFO L267 ElimStorePlain]: Start of recursive call 1: 2 dim-1 vars, End of recursive call: and 1 xjuncts. [2018-04-11 10:00:10,580 INFO L202 ElimStorePlain]: Needed 3 recursive calls to eliminate 2 variables, input treesize:16, output treesize:14 [2018-04-11 10:00:10,585 INFO L700 Elim1Store]: detected not equals via solver [2018-04-11 10:00:10,586 INFO L700 Elim1Store]: detected not equals via solver [2018-04-11 10:00:10,586 INFO L477 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 2 select indices, 2 select index equivalence classes, 2 disjoint index pairs (out of 1 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 17 treesize of output 21 [2018-04-11 10:00:10,587 INFO L267 ElimStorePlain]: Start of recursive call 2: End of recursive call: and 1 xjuncts. [2018-04-11 10:00:10,595 INFO L477 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 1 select indices, 1 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 12 treesize of output 15 [2018-04-11 10:00:10,595 INFO L267 ElimStorePlain]: Start of recursive call 3: End of recursive call: and 1 xjuncts. [2018-04-11 10:00:10,603 INFO L267 ElimStorePlain]: Start of recursive call 1: 1 dim-0 vars, 2 dim-1 vars, End of recursive call: and 1 xjuncts. [2018-04-11 10:00:10,603 INFO L202 ElimStorePlain]: Needed 3 recursive calls to eliminate 3 variables, input treesize:31, output treesize:23 [2018-04-11 10:00:10,725 INFO L700 Elim1Store]: detected not equals via solver [2018-04-11 10:00:10,726 INFO L700 Elim1Store]: detected not equals via solver [2018-04-11 10:00:10,727 INFO L700 Elim1Store]: detected not equals via solver [2018-04-11 10:00:10,727 INFO L477 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 3 select indices, 3 select index equivalence classes, 4 disjoint index pairs (out of 3 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 22 treesize of output 34 [2018-04-11 10:00:10,727 INFO L267 ElimStorePlain]: Start of recursive call 2: End of recursive call: and 1 xjuncts. [2018-04-11 10:00:10,742 INFO L477 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 1 select indices, 1 select index equivalence classes, 3 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 12 treesize of output 15 [2018-04-11 10:00:10,742 INFO L267 ElimStorePlain]: Start of recursive call 3: End of recursive call: and 1 xjuncts. [2018-04-11 10:00:10,754 INFO L267 ElimStorePlain]: Start of recursive call 1: 1 dim-0 vars, 2 dim-1 vars, End of recursive call: 1 dim-0 vars, and 1 xjuncts. [2018-04-11 10:00:10,754 INFO L202 ElimStorePlain]: Needed 3 recursive calls to eliminate 3 variables, input treesize:40, output treesize:41 [2018-04-11 10:00:10,791 INFO L477 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 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 11 treesize of output 8 [2018-04-11 10:00:10,793 INFO L477 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 8 treesize of output 7 [2018-04-11 10:00:10,793 INFO L267 ElimStorePlain]: Start of recursive call 3: End of recursive call: and 1 xjuncts. [2018-04-11 10:00:10,794 INFO L267 ElimStorePlain]: Start of recursive call 2: 1 dim-1 vars, End of recursive call: and 1 xjuncts. [2018-04-11 10:00:10,835 INFO L477 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 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 11 treesize of output 8 [2018-04-11 10:00:10,836 INFO L477 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 0 select indices, 0 select index equivalence classes, 2 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 8 treesize of output 7 [2018-04-11 10:00:10,837 INFO L267 ElimStorePlain]: Start of recursive call 5: End of recursive call: and 1 xjuncts. [2018-04-11 10:00:10,838 INFO L267 ElimStorePlain]: Start of recursive call 4: 1 dim-1 vars, End of recursive call: and 1 xjuncts. [2018-04-11 10:00:10,850 INFO L267 ElimStorePlain]: Start of recursive call 1: 2 dim-0 vars, 2 dim-2 vars, End of recursive call: 1 dim-0 vars, and 1 xjuncts. [2018-04-11 10:00:10,850 INFO L202 ElimStorePlain]: Needed 5 recursive calls to eliminate 4 variables, input treesize:60, output treesize:61 [2018-04-11 10:00:10,990 INFO L477 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 0 stores, 1 select indices, 1 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 42 treesize of output 32 [2018-04-11 10:00:10,993 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 0 new quantified variables, introduced 0 case distinctions, treesize of input 32 treesize of output 19 [2018-04-11 10:00:10,993 INFO L267 ElimStorePlain]: Start of recursive call 3: End of recursive call: and 1 xjuncts. [2018-04-11 10:00:11,000 INFO L267 ElimStorePlain]: Start of recursive call 2: 1 dim-1 vars, End of recursive call: and 1 xjuncts. [2018-04-11 10:00:11,012 INFO L477 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 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 15 treesize of output 11 [2018-04-11 10:00:11,014 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 11 treesize of output 3 [2018-04-11 10:00:11,014 INFO L267 ElimStorePlain]: Start of recursive call 5: End of recursive call: and 1 xjuncts. [2018-04-11 10:00:11,015 INFO L267 ElimStorePlain]: Start of recursive call 4: 1 dim-1 vars, End of recursive call: and 1 xjuncts. [2018-04-11 10:00:11,023 INFO L267 ElimStorePlain]: Start of recursive call 1: 3 dim-0 vars, 2 dim-2 vars, End of recursive call: 2 dim-0 vars, and 1 xjuncts. [2018-04-11 10:00:11,023 INFO L202 ElimStorePlain]: Needed 5 recursive calls to eliminate 5 variables, input treesize:75, output treesize:41 [2018-04-11 10:00:11,153 INFO L477 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 3 select indices, 3 select index equivalence classes, 3 disjoint index pairs (out of 3 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 16 treesize of output 13 [2018-04-11 10:00:11,153 INFO L267 ElimStorePlain]: Start of recursive call 2: End of recursive call: and 1 xjuncts. [2018-04-11 10:00:11,160 INFO L267 ElimStorePlain]: Start of recursive call 1: 2 dim-0 vars, 1 dim-1 vars, End of recursive call: 1 dim-0 vars, and 1 xjuncts. [2018-04-11 10:00:11,160 INFO L202 ElimStorePlain]: Needed 2 recursive calls to eliminate 3 variables, input treesize:41, output treesize:18 [2018-04-11 10:00:11,405 INFO L134 CoverageAnalysis]: Checked inductivity of 4 backedges. 0 proven. 4 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-04-11 10:00:11,423 INFO L320 seRefinementStrategy]: Constructing automaton from 0 perfect and 2 imperfect interpolant sequences. [2018-04-11 10:00:11,424 INFO L335 seRefinementStrategy]: Number of different interpolants: perfect sequences [] imperfect sequences [19, 19] total 35 [2018-04-11 10:00:11,424 INFO L442 AbstractCegarLoop]: Interpolant automaton has 36 states [2018-04-11 10:00:11,424 INFO L132 InterpolantAutomaton]: Constructing interpolant automaton starting with 36 interpolants. [2018-04-11 10:00:11,424 INFO L133 InterpolantAutomaton]: CoverageRelationStatistics Valid=101, Invalid=1159, Unknown=0, NotChecked=0, Total=1260 [2018-04-11 10:00:11,424 INFO L87 Difference]: Start difference. First operand 161 states and 173 transitions. Second operand 36 states. [2018-04-11 10:00:13,703 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-04-11 10:00:13,703 INFO L93 Difference]: Finished difference Result 218 states and 236 transitions. [2018-04-11 10:00:13,703 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 41 states. [2018-04-11 10:00:13,703 INFO L78 Accepts]: Start accepts. Automaton has 36 states. Word has length 37 [2018-04-11 10:00:13,703 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-04-11 10:00:13,704 INFO L225 Difference]: With dead ends: 218 [2018-04-11 10:00:13,704 INFO L226 Difference]: Without dead ends: 218 [2018-04-11 10:00:13,705 INFO L567 BasicCegarLoop]: 0 DeclaredPredicates, 89 GetRequests, 19 SyntacticMatches, 2 SemanticMatches, 68 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1139 ImplicationChecksByTransitivity, 2.7s TimeCoverageRelationStatistics Valid=469, Invalid=4361, Unknown=0, NotChecked=0, Total=4830 [2018-04-11 10:00:13,705 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 218 states. [2018-04-11 10:00:13,708 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 218 to 169. [2018-04-11 10:00:13,708 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 169 states. [2018-04-11 10:00:13,709 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 169 states to 169 states and 183 transitions. [2018-04-11 10:00:13,709 INFO L78 Accepts]: Start accepts. Automaton has 169 states and 183 transitions. Word has length 37 [2018-04-11 10:00:13,709 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-04-11 10:00:13,709 INFO L459 AbstractCegarLoop]: Abstraction has 169 states and 183 transitions. [2018-04-11 10:00:13,709 INFO L460 AbstractCegarLoop]: Interpolant automaton has 36 states. [2018-04-11 10:00:13,709 INFO L276 IsEmpty]: Start isEmpty. Operand 169 states and 183 transitions. [2018-04-11 10:00:13,709 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 38 [2018-04-11 10:00:13,709 INFO L347 BasicCegarLoop]: Found error trace [2018-04-11 10:00:13,709 INFO L355 BasicCegarLoop]: trace histogram [3, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2018-04-11 10:00:13,710 INFO L408 AbstractCegarLoop]: === Iteration 19 === [mainErr1RequiresViolation, mainErr2EnsuresViolationMEMORY_LEAK, mainErr0RequiresViolation, __U_MULTI_fopenbsd_cstpncpy_alloca_true_valid_memsafety_true_termination_i__cstpncpyErr2RequiresViolation, __U_MULTI_fopenbsd_cstpncpy_alloca_true_valid_memsafety_true_termination_i__cstpncpyErr12RequiresViolation, __U_MULTI_fopenbsd_cstpncpy_alloca_true_valid_memsafety_true_termination_i__cstpncpyErr17RequiresViolation, __U_MULTI_fopenbsd_cstpncpy_alloca_true_valid_memsafety_true_termination_i__cstpncpyErr3RequiresViolation, __U_MULTI_fopenbsd_cstpncpy_alloca_true_valid_memsafety_true_termination_i__cstpncpyErr6RequiresViolation, __U_MULTI_fopenbsd_cstpncpy_alloca_true_valid_memsafety_true_termination_i__cstpncpyErr13RequiresViolation, __U_MULTI_fopenbsd_cstpncpy_alloca_true_valid_memsafety_true_termination_i__cstpncpyErr8RequiresViolation, __U_MULTI_fopenbsd_cstpncpy_alloca_true_valid_memsafety_true_termination_i__cstpncpyErr1RequiresViolation, __U_MULTI_fopenbsd_cstpncpy_alloca_true_valid_memsafety_true_termination_i__cstpncpyErr0RequiresViolation, __U_MULTI_fopenbsd_cstpncpy_alloca_true_valid_memsafety_true_termination_i__cstpncpyErr9RequiresViolation, __U_MULTI_fopenbsd_cstpncpy_alloca_true_valid_memsafety_true_termination_i__cstpncpyErr10RequiresViolation, __U_MULTI_fopenbsd_cstpncpy_alloca_true_valid_memsafety_true_termination_i__cstpncpyErr15RequiresViolation, __U_MULTI_fopenbsd_cstpncpy_alloca_true_valid_memsafety_true_termination_i__cstpncpyErr5RequiresViolation, __U_MULTI_fopenbsd_cstpncpy_alloca_true_valid_memsafety_true_termination_i__cstpncpyErr4RequiresViolation, __U_MULTI_fopenbsd_cstpncpy_alloca_true_valid_memsafety_true_termination_i__cstpncpyErr11RequiresViolation, __U_MULTI_fopenbsd_cstpncpy_alloca_true_valid_memsafety_true_termination_i__cstpncpyErr16RequiresViolation, __U_MULTI_fopenbsd_cstpncpy_alloca_true_valid_memsafety_true_termination_i__cstpncpyErr7RequiresViolation, __U_MULTI_fopenbsd_cstpncpy_alloca_true_valid_memsafety_true_termination_i__cstpncpyErr14RequiresViolation]=== [2018-04-11 10:00:13,710 INFO L82 PathProgramCache]: Analyzing trace with hash -1912838307, now seen corresponding path program 2 times [2018-04-11 10:00:13,710 INFO L213 ckRefinementStrategy]: Switched to mode SMTINTERPOL_TREE_INTERPOLANTS [2018-04-11 10:00:13,710 INFO L68 tionRefinementEngine]: Using refinement strategy CamelRefinementStrategy [2018-04-11 10:00:13,710 INFO L119 rtionOrderModulation]: Craig nested/tree interpolation forces the following order [2018-04-11 10:00:13,711 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-04-11 10:00:13,711 INFO L119 rtionOrderModulation]: Craig nested/tree interpolation forces the following order [2018-04-11 10:00:13,724 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-04-11 10:00:13,724 WARN L137 erpolLogProxyWrapper]: Using partial proofs (cut at CNF-level). Set option :produce-proofs to true to get complete proofs. [2018-04-11 10:00:14,154 INFO L134 CoverageAnalysis]: Checked inductivity of 10 backedges. 0 proven. 10 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-04-11 10:00:14,176 INFO L308 seRefinementStrategy]: The current sequences of interpolants are not accepted, trying to find more. [2018-04-11 10:00:14,176 INFO L213 ckRefinementStrategy]: Switched to mode Z3_FP No working directory specified, using /home/ultimate/work/ultimate/releaseScripts/default/UAutomizer-linux/z3 Starting monitored process 5 with z3 -smt2 -in SMTLIB2_COMPLIANT=true -t:12000 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 5 with z3 -smt2 -in SMTLIB2_COMPLIANT=true -t:12000 [2018-04-11 10:00:14,181 INFO L103 rtionOrderModulation]: Keeping assertion order OUTSIDE_LOOP_FIRST1 [2018-04-11 10:00:14,203 INFO L242 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST1 issued 2 check-sat command(s) [2018-04-11 10:00:14,203 INFO L243 tOrderPrioritization]: Conjunction of SSA is unsat [2018-04-11 10:00:14,205 INFO L270 TraceCheckSpWp]: Computing forward predicates... [2018-04-11 10:00:14,211 INFO L477 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 6 treesize of output 5 [2018-04-11 10:00:14,211 INFO L267 ElimStorePlain]: Start of recursive call 2: End of recursive call: and 1 xjuncts. [2018-04-11 10:00:14,214 INFO L267 ElimStorePlain]: Start of recursive call 1: 1 dim-1 vars, End of recursive call: and 1 xjuncts. [2018-04-11 10:00:14,214 INFO L202 ElimStorePlain]: Needed 2 recursive calls to eliminate 1 variables, input treesize:6, output treesize:5 [2018-04-11 10:00:14,217 INFO L477 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 6 treesize of output 5 [2018-04-11 10:00:14,217 INFO L267 ElimStorePlain]: Start of recursive call 2: End of recursive call: and 1 xjuncts. [2018-04-11 10:00:14,225 INFO L700 Elim1Store]: detected not equals via solver [2018-04-11 10:00:14,228 INFO L700 Elim1Store]: detected not equals via solver [2018-04-11 10:00:14,228 INFO L477 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 2 select indices, 2 select index equivalence classes, 2 disjoint index pairs (out of 1 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 11 treesize of output 4 [2018-04-11 10:00:14,228 INFO L267 ElimStorePlain]: Start of recursive call 3: End of recursive call: and 1 xjuncts. [2018-04-11 10:00:14,232 INFO L267 ElimStorePlain]: Start of recursive call 1: 2 dim-1 vars, End of recursive call: and 1 xjuncts. [2018-04-11 10:00:14,232 INFO L202 ElimStorePlain]: Needed 3 recursive calls to eliminate 2 variables, input treesize:20, output treesize:13 [2018-04-11 10:00:14,283 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 16 treesize of output 13 [2018-04-11 10:00:14,285 INFO L477 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 13 treesize of output 12 [2018-04-11 10:00:14,285 INFO L267 ElimStorePlain]: Start of recursive call 3: End of recursive call: and 1 xjuncts. [2018-04-11 10:00:14,286 INFO L267 ElimStorePlain]: Start of recursive call 2: 1 dim-1 vars, End of recursive call: and 1 xjuncts. [2018-04-11 10:00:14,292 INFO L267 ElimStorePlain]: Start of recursive call 1: 1 dim-0 vars, 1 dim-2 vars, End of recursive call: 1 dim-0 vars, and 1 xjuncts. [2018-04-11 10:00:14,292 INFO L202 ElimStorePlain]: Needed 3 recursive calls to eliminate 2 variables, input treesize:32, output treesize:28 [2018-04-11 10:00:14,345 INFO L700 Elim1Store]: detected not equals via solver [2018-04-11 10:00:14,346 INFO L477 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 1 select indices, 1 select index equivalence classes, 2 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 19 treesize of output 22 [2018-04-11 10:00:14,346 INFO L267 ElimStorePlain]: Start of recursive call 2: End of recursive call: and 1 xjuncts. [2018-04-11 10:00:14,354 INFO L700 Elim1Store]: detected not equals via solver [2018-04-11 10:00:14,355 INFO L700 Elim1Store]: detected not equals via solver [2018-04-11 10:00:14,355 INFO L477 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 2 select indices, 2 select index equivalence classes, 3 disjoint index pairs (out of 1 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 11 treesize of output 4 [2018-04-11 10:00:14,355 INFO L267 ElimStorePlain]: Start of recursive call 3: End of recursive call: and 1 xjuncts. [2018-04-11 10:00:14,361 INFO L267 ElimStorePlain]: Start of recursive call 1: 1 dim-0 vars, 2 dim-1 vars, End of recursive call: 1 dim-0 vars, and 1 xjuncts. [2018-04-11 10:00:14,361 INFO L202 ElimStorePlain]: Needed 3 recursive calls to eliminate 3 variables, input treesize:39, output treesize:32 [2018-04-11 10:00:14,400 INFO L477 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 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 8 [2018-04-11 10:00:14,402 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 8 treesize of output 7 [2018-04-11 10:00:14,402 INFO L267 ElimStorePlain]: Start of recursive call 3: End of recursive call: and 1 xjuncts. [2018-04-11 10:00:14,404 INFO L267 ElimStorePlain]: Start of recursive call 2: 1 dim-1 vars, End of recursive call: and 1 xjuncts. [2018-04-11 10:00:14,411 INFO L267 ElimStorePlain]: Start of recursive call 1: 2 dim-0 vars, 1 dim-2 vars, End of recursive call: 1 dim-0 vars, and 1 xjuncts. [2018-04-11 10:00:14,411 INFO L202 ElimStorePlain]: Needed 3 recursive calls to eliminate 3 variables, input treesize:43, output treesize:36 [2018-04-11 10:00:14,473 INFO L477 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 0 stores, 1 select indices, 1 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 16 treesize of output 12 [2018-04-11 10:00:14,475 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 4 [2018-04-11 10:00:14,475 INFO L267 ElimStorePlain]: Start of recursive call 3: End of recursive call: and 1 xjuncts. [2018-04-11 10:00:14,476 INFO L267 ElimStorePlain]: Start of recursive call 2: 1 dim-1 vars, End of recursive call: and 1 xjuncts. [2018-04-11 10:00:14,481 INFO L267 ElimStorePlain]: Start of recursive call 1: 3 dim-0 vars, 1 dim-2 vars, End of recursive call: 2 dim-0 vars, and 1 xjuncts. [2018-04-11 10:00:14,481 INFO L202 ElimStorePlain]: Needed 3 recursive calls to eliminate 4 variables, input treesize:43, output treesize:32 [2018-04-11 10:00:14,676 INFO L477 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 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 24 treesize of output 25 [2018-04-11 10:00:14,678 INFO L477 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 8 treesize of output 7 [2018-04-11 10:00:14,678 INFO L267 ElimStorePlain]: Start of recursive call 3: End of recursive call: and 1 xjuncts. [2018-04-11 10:00:14,681 INFO L267 ElimStorePlain]: Start of recursive call 2: 1 dim-1 vars, End of recursive call: and 1 xjuncts. [2018-04-11 10:00:14,689 INFO L267 ElimStorePlain]: Start of recursive call 1: 5 dim-0 vars, 1 dim-2 vars, End of recursive call: 2 dim-0 vars, and 1 xjuncts. [2018-04-11 10:00:14,689 INFO L202 ElimStorePlain]: Needed 3 recursive calls to eliminate 6 variables, input treesize:46, output treesize:31 [2018-04-11 10:00:14,782 INFO L477 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 0 stores, 1 select indices, 1 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 22 treesize of output 18 [2018-04-11 10:00:14,788 INFO L477 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 2 select indices, 2 select index equivalence classes, 0 disjoint index pairs (out of 1 index pairs), introduced 0 new quantified variables, introduced 1 case distinctions, treesize of input 18 treesize of output 15 [2018-04-11 10:00:14,789 INFO L267 ElimStorePlain]: Start of recursive call 3: End of recursive call: and 2 xjuncts. [2018-04-11 10:00:14,791 INFO L267 ElimStorePlain]: Start of recursive call 2: 1 dim-1 vars, End of recursive call: and 2 xjuncts. [2018-04-11 10:00:14,799 INFO L267 ElimStorePlain]: Start of recursive call 1: 2 dim-0 vars, 1 dim-2 vars, End of recursive call: 2 dim-0 vars, and 2 xjuncts. [2018-04-11 10:00:14,800 INFO L202 ElimStorePlain]: Needed 3 recursive calls to eliminate 3 variables, input treesize:45, output treesize:55 [2018-04-11 10:00:14,958 INFO L134 CoverageAnalysis]: Checked inductivity of 10 backedges. 0 proven. 10 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-04-11 10:00:14,977 INFO L320 seRefinementStrategy]: Constructing automaton from 0 perfect and 2 imperfect interpolant sequences. [2018-04-11 10:00:14,977 INFO L335 seRefinementStrategy]: Number of different interpolants: perfect sequences [] imperfect sequences [20, 19] total 36 [2018-04-11 10:00:14,977 INFO L442 AbstractCegarLoop]: Interpolant automaton has 37 states [2018-04-11 10:00:14,977 INFO L132 InterpolantAutomaton]: Constructing interpolant automaton starting with 37 interpolants. [2018-04-11 10:00:14,978 INFO L133 InterpolantAutomaton]: CoverageRelationStatistics Valid=86, Invalid=1246, Unknown=0, NotChecked=0, Total=1332 [2018-04-11 10:00:14,978 INFO L87 Difference]: Start difference. First operand 169 states and 183 transitions. Second operand 37 states. [2018-04-11 10:00:16,646 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-04-11 10:00:16,647 INFO L93 Difference]: Finished difference Result 180 states and 194 transitions. [2018-04-11 10:00:16,647 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 23 states. [2018-04-11 10:00:16,647 INFO L78 Accepts]: Start accepts. Automaton has 37 states. Word has length 37 [2018-04-11 10:00:16,647 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-04-11 10:00:16,647 INFO L225 Difference]: With dead ends: 180 [2018-04-11 10:00:16,648 INFO L226 Difference]: Without dead ends: 180 [2018-04-11 10:00:16,648 INFO L567 BasicCegarLoop]: 0 DeclaredPredicates, 76 GetRequests, 20 SyntacticMatches, 1 SemanticMatches, 55 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 416 ImplicationChecksByTransitivity, 2.0s TimeCoverageRelationStatistics Valid=291, Invalid=2901, Unknown=0, NotChecked=0, Total=3192 [2018-04-11 10:00:16,648 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 180 states. [2018-04-11 10:00:16,651 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 180 to 168. [2018-04-11 10:00:16,651 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 168 states. [2018-04-11 10:00:16,651 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 168 states to 168 states and 182 transitions. [2018-04-11 10:00:16,651 INFO L78 Accepts]: Start accepts. Automaton has 168 states and 182 transitions. Word has length 37 [2018-04-11 10:00:16,651 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-04-11 10:00:16,651 INFO L459 AbstractCegarLoop]: Abstraction has 168 states and 182 transitions. [2018-04-11 10:00:16,651 INFO L460 AbstractCegarLoop]: Interpolant automaton has 37 states. [2018-04-11 10:00:16,651 INFO L276 IsEmpty]: Start isEmpty. Operand 168 states and 182 transitions. [2018-04-11 10:00:16,652 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 39 [2018-04-11 10:00:16,652 INFO L347 BasicCegarLoop]: Found error trace [2018-04-11 10:00:16,652 INFO L355 BasicCegarLoop]: trace histogram [2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2018-04-11 10:00:16,652 INFO L408 AbstractCegarLoop]: === Iteration 20 === [mainErr1RequiresViolation, mainErr2EnsuresViolationMEMORY_LEAK, mainErr0RequiresViolation, __U_MULTI_fopenbsd_cstpncpy_alloca_true_valid_memsafety_true_termination_i__cstpncpyErr2RequiresViolation, __U_MULTI_fopenbsd_cstpncpy_alloca_true_valid_memsafety_true_termination_i__cstpncpyErr12RequiresViolation, __U_MULTI_fopenbsd_cstpncpy_alloca_true_valid_memsafety_true_termination_i__cstpncpyErr17RequiresViolation, __U_MULTI_fopenbsd_cstpncpy_alloca_true_valid_memsafety_true_termination_i__cstpncpyErr3RequiresViolation, __U_MULTI_fopenbsd_cstpncpy_alloca_true_valid_memsafety_true_termination_i__cstpncpyErr6RequiresViolation, __U_MULTI_fopenbsd_cstpncpy_alloca_true_valid_memsafety_true_termination_i__cstpncpyErr13RequiresViolation, __U_MULTI_fopenbsd_cstpncpy_alloca_true_valid_memsafety_true_termination_i__cstpncpyErr8RequiresViolation, __U_MULTI_fopenbsd_cstpncpy_alloca_true_valid_memsafety_true_termination_i__cstpncpyErr1RequiresViolation, __U_MULTI_fopenbsd_cstpncpy_alloca_true_valid_memsafety_true_termination_i__cstpncpyErr0RequiresViolation, __U_MULTI_fopenbsd_cstpncpy_alloca_true_valid_memsafety_true_termination_i__cstpncpyErr9RequiresViolation, __U_MULTI_fopenbsd_cstpncpy_alloca_true_valid_memsafety_true_termination_i__cstpncpyErr10RequiresViolation, __U_MULTI_fopenbsd_cstpncpy_alloca_true_valid_memsafety_true_termination_i__cstpncpyErr15RequiresViolation, __U_MULTI_fopenbsd_cstpncpy_alloca_true_valid_memsafety_true_termination_i__cstpncpyErr5RequiresViolation, __U_MULTI_fopenbsd_cstpncpy_alloca_true_valid_memsafety_true_termination_i__cstpncpyErr4RequiresViolation, __U_MULTI_fopenbsd_cstpncpy_alloca_true_valid_memsafety_true_termination_i__cstpncpyErr11RequiresViolation, __U_MULTI_fopenbsd_cstpncpy_alloca_true_valid_memsafety_true_termination_i__cstpncpyErr16RequiresViolation, __U_MULTI_fopenbsd_cstpncpy_alloca_true_valid_memsafety_true_termination_i__cstpncpyErr7RequiresViolation, __U_MULTI_fopenbsd_cstpncpy_alloca_true_valid_memsafety_true_termination_i__cstpncpyErr14RequiresViolation]=== [2018-04-11 10:00:16,652 INFO L82 PathProgramCache]: Analyzing trace with hash 150252457, now seen corresponding path program 1 times [2018-04-11 10:00:16,652 INFO L213 ckRefinementStrategy]: Switched to mode SMTINTERPOL_TREE_INTERPOLANTS [2018-04-11 10:00:16,652 INFO L68 tionRefinementEngine]: Using refinement strategy CamelRefinementStrategy [2018-04-11 10:00:16,653 INFO L119 rtionOrderModulation]: Craig nested/tree interpolation forces the following order [2018-04-11 10:00:16,653 INFO L101 rtionOrderModulation]: Changing assertion order to NOT_INCREMENTALLY [2018-04-11 10:00:16,653 INFO L119 rtionOrderModulation]: Craig nested/tree interpolation forces the following order [2018-04-11 10:00:16,661 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-04-11 10:00:16,661 WARN L137 erpolLogProxyWrapper]: Using partial proofs (cut at CNF-level). Set option :produce-proofs to true to get complete proofs. [2018-04-11 10:00:17,042 INFO L134 CoverageAnalysis]: Checked inductivity of 4 backedges. 0 proven. 4 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-04-11 10:00:17,043 INFO L308 seRefinementStrategy]: The current sequences of interpolants are not accepted, trying to find more. [2018-04-11 10:00:17,043 INFO L213 ckRefinementStrategy]: Switched to mode Z3_FP No working directory specified, using /home/ultimate/work/ultimate/releaseScripts/default/UAutomizer-linux/z3 Starting monitored process 6 with z3 -smt2 -in SMTLIB2_COMPLIANT=true -t:12000 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 6 with z3 -smt2 -in SMTLIB2_COMPLIANT=true -t:12000 [2018-04-11 10:00:17,048 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-04-11 10:00:17,070 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-04-11 10:00:17,072 INFO L270 TraceCheckSpWp]: Computing forward predicates... [2018-04-11 10:00:17,074 INFO L477 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 6 treesize of output 5 [2018-04-11 10:00:17,074 INFO L267 ElimStorePlain]: Start of recursive call 2: End of recursive call: and 1 xjuncts. [2018-04-11 10:00:17,077 INFO L477 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 6 treesize of output 5 [2018-04-11 10:00:17,078 INFO L267 ElimStorePlain]: Start of recursive call 3: End of recursive call: and 1 xjuncts. [2018-04-11 10:00:17,080 INFO L267 ElimStorePlain]: Start of recursive call 1: 2 dim-1 vars, End of recursive call: and 1 xjuncts. [2018-04-11 10:00:17,080 INFO L202 ElimStorePlain]: Needed 3 recursive calls to eliminate 2 variables, input treesize:16, output treesize:14 [2018-04-11 10:00:17,085 INFO L700 Elim1Store]: detected not equals via solver [2018-04-11 10:00:17,086 INFO L477 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 1 select indices, 1 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 12 treesize of output 15 [2018-04-11 10:00:17,087 INFO L267 ElimStorePlain]: Start of recursive call 2: End of recursive call: and 1 xjuncts. [2018-04-11 10:00:17,095 INFO L700 Elim1Store]: detected not equals via solver [2018-04-11 10:00:17,096 INFO L700 Elim1Store]: detected not equals via solver [2018-04-11 10:00:17,096 INFO L477 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 2 select indices, 2 select index equivalence classes, 2 disjoint index pairs (out of 1 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 11 treesize of output 4 [2018-04-11 10:00:17,096 INFO L267 ElimStorePlain]: Start of recursive call 3: End of recursive call: and 1 xjuncts. [2018-04-11 10:00:17,100 INFO L267 ElimStorePlain]: Start of recursive call 1: 1 dim-0 vars, 2 dim-1 vars, End of recursive call: and 1 xjuncts. [2018-04-11 10:00:17,100 INFO L202 ElimStorePlain]: Needed 3 recursive calls to eliminate 3 variables, input treesize:25, output treesize:13 [2018-04-11 10:00:17,137 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 1 new quantified variables, introduced 2 case distinctions, treesize of input 17 treesize of output 21 [2018-04-11 10:00:17,138 INFO L267 ElimStorePlain]: Start of recursive call 2: End of recursive call: and 2 xjuncts. [2018-04-11 10:00:17,146 INFO L267 ElimStorePlain]: Start of recursive call 1: 1 dim-1 vars, End of recursive call: and 2 xjuncts. [2018-04-11 10:00:17,146 INFO L202 ElimStorePlain]: Needed 2 recursive calls to eliminate 1 variables, input treesize:20, output treesize:32 [2018-04-11 10:00:17,178 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 28 treesize of output 25 [2018-04-11 10:00:17,180 INFO L477 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 8 treesize of output 7 [2018-04-11 10:00:17,180 INFO L267 ElimStorePlain]: Start of recursive call 3: End of recursive call: and 1 xjuncts. [2018-04-11 10:00:17,184 INFO L267 ElimStorePlain]: Start of recursive call 2: 1 dim-1 vars, End of recursive call: and 1 xjuncts. [2018-04-11 10:00:17,202 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 38 treesize of output 35 [2018-04-11 10:00:17,204 INFO L477 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 8 treesize of output 7 [2018-04-11 10:00:17,204 INFO L267 ElimStorePlain]: Start of recursive call 5: End of recursive call: and 1 xjuncts. [2018-04-11 10:00:17,210 INFO L267 ElimStorePlain]: Start of recursive call 4: 1 dim-1 vars, End of recursive call: and 1 xjuncts. [2018-04-11 10:00:17,224 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 34 treesize of output 31 [2018-04-11 10:00:17,226 INFO L477 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 8 treesize of output 7 [2018-04-11 10:00:17,226 INFO L267 ElimStorePlain]: Start of recursive call 7: End of recursive call: and 1 xjuncts. [2018-04-11 10:00:17,231 INFO L267 ElimStorePlain]: Start of recursive call 6: 1 dim-1 vars, End of recursive call: and 1 xjuncts. [2018-04-11 10:00:17,244 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 24 treesize of output 21 [2018-04-11 10:00:17,245 INFO L477 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 8 treesize of output 7 [2018-04-11 10:00:17,246 INFO L267 ElimStorePlain]: Start of recursive call 9: End of recursive call: and 1 xjuncts. [2018-04-11 10:00:17,249 INFO L267 ElimStorePlain]: Start of recursive call 8: 1 dim-1 vars, End of recursive call: and 1 xjuncts. [2018-04-11 10:00:17,259 INFO L267 ElimStorePlain]: Start of recursive call 1: 1 dim-0 vars, 4 dim-2 vars, End of recursive call: and 2 xjuncts. [2018-04-11 10:00:17,259 INFO L202 ElimStorePlain]: Needed 9 recursive calls to eliminate 5 variables, input treesize:67, output treesize:52 [2018-04-11 10:00:17,345 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 45 treesize of output 39 [2018-04-11 10:00:17,347 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 20 treesize of output 11 [2018-04-11 10:00:17,347 INFO L267 ElimStorePlain]: Start of recursive call 3: End of recursive call: and 1 xjuncts. [2018-04-11 10:00:17,351 INFO L267 ElimStorePlain]: Start of recursive call 2: 1 dim-1 vars, End of recursive call: and 1 xjuncts. [2018-04-11 10:00:17,364 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 30 treesize of output 26 [2018-04-11 10:00:17,366 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 11 treesize of output 3 [2018-04-11 10:00:17,366 INFO L267 ElimStorePlain]: Start of recursive call 5: End of recursive call: and 1 xjuncts. [2018-04-11 10:00:17,375 INFO L267 ElimStorePlain]: Start of recursive call 4: 1 dim-1 vars, End of recursive call: and 1 xjuncts. [2018-04-11 10:00:17,389 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 34 treesize of output 30 [2018-04-11 10:00:17,390 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 11 treesize of output 3 [2018-04-11 10:00:17,391 INFO L267 ElimStorePlain]: Start of recursive call 7: End of recursive call: and 1 xjuncts. [2018-04-11 10:00:17,394 INFO L267 ElimStorePlain]: Start of recursive call 6: 1 dim-1 vars, End of recursive call: and 1 xjuncts. [2018-04-11 10:00:17,403 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 23 treesize of output 19 [2018-04-11 10:00:17,404 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 11 treesize of output 3 [2018-04-11 10:00:17,405 INFO L267 ElimStorePlain]: Start of recursive call 9: End of recursive call: and 1 xjuncts. [2018-04-11 10:00:17,407 INFO L267 ElimStorePlain]: Start of recursive call 8: 1 dim-1 vars, End of recursive call: and 1 xjuncts. [2018-04-11 10:00:17,414 INFO L267 ElimStorePlain]: Start of recursive call 1: 4 dim-0 vars, 4 dim-2 vars, End of recursive call: 1 dim-0 vars, and 2 xjuncts. [2018-04-11 10:00:17,414 INFO L202 ElimStorePlain]: Needed 9 recursive calls to eliminate 8 variables, input treesize:80, output treesize:29 [2018-04-11 10:00:17,899 INFO L134 CoverageAnalysis]: Checked inductivity of 4 backedges. 0 proven. 4 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-04-11 10:00:17,928 INFO L320 seRefinementStrategy]: Constructing automaton from 0 perfect and 2 imperfect interpolant sequences. [2018-04-11 10:00:17,928 INFO L335 seRefinementStrategy]: Number of different interpolants: perfect sequences [] imperfect sequences [19, 18] total 32 [2018-04-11 10:00:17,929 INFO L442 AbstractCegarLoop]: Interpolant automaton has 33 states [2018-04-11 10:00:17,929 INFO L132 InterpolantAutomaton]: Constructing interpolant automaton starting with 33 interpolants. [2018-04-11 10:00:17,929 INFO L133 InterpolantAutomaton]: CoverageRelationStatistics Valid=80, Invalid=976, Unknown=0, NotChecked=0, Total=1056 [2018-04-11 10:00:17,929 INFO L87 Difference]: Start difference. First operand 168 states and 182 transitions. Second operand 33 states. [2018-04-11 10:00:19,559 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-04-11 10:00:19,559 INFO L93 Difference]: Finished difference Result 187 states and 202 transitions. [2018-04-11 10:00:19,560 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 25 states. [2018-04-11 10:00:19,560 INFO L78 Accepts]: Start accepts. Automaton has 33 states. Word has length 38 [2018-04-11 10:00:19,560 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-04-11 10:00:19,560 INFO L225 Difference]: With dead ends: 187 [2018-04-11 10:00:19,560 INFO L226 Difference]: Without dead ends: 187 [2018-04-11 10:00:19,561 INFO L567 BasicCegarLoop]: 0 DeclaredPredicates, 75 GetRequests, 22 SyntacticMatches, 3 SemanticMatches, 50 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 494 ImplicationChecksByTransitivity, 2.0s TimeCoverageRelationStatistics Valid=233, Invalid=2419, Unknown=0, NotChecked=0, Total=2652 [2018-04-11 10:00:19,561 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 187 states. [2018-04-11 10:00:19,563 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 187 to 168. [2018-04-11 10:00:19,563 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 168 states. [2018-04-11 10:00:19,563 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 168 states to 168 states and 181 transitions. [2018-04-11 10:00:19,563 INFO L78 Accepts]: Start accepts. Automaton has 168 states and 181 transitions. Word has length 38 [2018-04-11 10:00:19,563 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-04-11 10:00:19,564 INFO L459 AbstractCegarLoop]: Abstraction has 168 states and 181 transitions. [2018-04-11 10:00:19,564 INFO L460 AbstractCegarLoop]: Interpolant automaton has 33 states. [2018-04-11 10:00:19,564 INFO L276 IsEmpty]: Start isEmpty. Operand 168 states and 181 transitions. [2018-04-11 10:00:19,564 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 39 [2018-04-11 10:00:19,564 INFO L347 BasicCegarLoop]: Found error trace [2018-04-11 10:00:19,564 INFO L355 BasicCegarLoop]: trace histogram [3, 3, 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] [2018-04-11 10:00:19,564 INFO L408 AbstractCegarLoop]: === Iteration 21 === [mainErr1RequiresViolation, mainErr2EnsuresViolationMEMORY_LEAK, mainErr0RequiresViolation, __U_MULTI_fopenbsd_cstpncpy_alloca_true_valid_memsafety_true_termination_i__cstpncpyErr2RequiresViolation, __U_MULTI_fopenbsd_cstpncpy_alloca_true_valid_memsafety_true_termination_i__cstpncpyErr12RequiresViolation, __U_MULTI_fopenbsd_cstpncpy_alloca_true_valid_memsafety_true_termination_i__cstpncpyErr17RequiresViolation, __U_MULTI_fopenbsd_cstpncpy_alloca_true_valid_memsafety_true_termination_i__cstpncpyErr3RequiresViolation, __U_MULTI_fopenbsd_cstpncpy_alloca_true_valid_memsafety_true_termination_i__cstpncpyErr6RequiresViolation, __U_MULTI_fopenbsd_cstpncpy_alloca_true_valid_memsafety_true_termination_i__cstpncpyErr13RequiresViolation, __U_MULTI_fopenbsd_cstpncpy_alloca_true_valid_memsafety_true_termination_i__cstpncpyErr8RequiresViolation, __U_MULTI_fopenbsd_cstpncpy_alloca_true_valid_memsafety_true_termination_i__cstpncpyErr1RequiresViolation, __U_MULTI_fopenbsd_cstpncpy_alloca_true_valid_memsafety_true_termination_i__cstpncpyErr0RequiresViolation, __U_MULTI_fopenbsd_cstpncpy_alloca_true_valid_memsafety_true_termination_i__cstpncpyErr9RequiresViolation, __U_MULTI_fopenbsd_cstpncpy_alloca_true_valid_memsafety_true_termination_i__cstpncpyErr10RequiresViolation, __U_MULTI_fopenbsd_cstpncpy_alloca_true_valid_memsafety_true_termination_i__cstpncpyErr15RequiresViolation, __U_MULTI_fopenbsd_cstpncpy_alloca_true_valid_memsafety_true_termination_i__cstpncpyErr5RequiresViolation, __U_MULTI_fopenbsd_cstpncpy_alloca_true_valid_memsafety_true_termination_i__cstpncpyErr4RequiresViolation, __U_MULTI_fopenbsd_cstpncpy_alloca_true_valid_memsafety_true_termination_i__cstpncpyErr11RequiresViolation, __U_MULTI_fopenbsd_cstpncpy_alloca_true_valid_memsafety_true_termination_i__cstpncpyErr16RequiresViolation, __U_MULTI_fopenbsd_cstpncpy_alloca_true_valid_memsafety_true_termination_i__cstpncpyErr7RequiresViolation, __U_MULTI_fopenbsd_cstpncpy_alloca_true_valid_memsafety_true_termination_i__cstpncpyErr14RequiresViolation]=== [2018-04-11 10:00:19,564 INFO L82 PathProgramCache]: Analyzing trace with hash 831554627, now seen corresponding path program 2 times [2018-04-11 10:00:19,564 INFO L213 ckRefinementStrategy]: Switched to mode SMTINTERPOL_TREE_INTERPOLANTS [2018-04-11 10:00:19,564 INFO L68 tionRefinementEngine]: Using refinement strategy CamelRefinementStrategy [2018-04-11 10:00:19,565 INFO L119 rtionOrderModulation]: Craig nested/tree interpolation forces the following order [2018-04-11 10:00:19,565 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-04-11 10:00:19,565 INFO L119 rtionOrderModulation]: Craig nested/tree interpolation forces the following order [2018-04-11 10:00:19,572 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-04-11 10:00:19,572 WARN L137 erpolLogProxyWrapper]: Using partial proofs (cut at CNF-level). Set option :produce-proofs to true to get complete proofs. [2018-04-11 10:00:20,128 INFO L134 CoverageAnalysis]: Checked inductivity of 12 backedges. 0 proven. 12 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-04-11 10:00:20,128 INFO L308 seRefinementStrategy]: The current sequences of interpolants are not accepted, trying to find more. [2018-04-11 10:00:20,128 INFO L213 ckRefinementStrategy]: Switched to mode Z3_FP No working directory specified, using /home/ultimate/work/ultimate/releaseScripts/default/UAutomizer-linux/z3 Starting monitored process 7 with z3 -smt2 -in SMTLIB2_COMPLIANT=true -t:12000 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 7 with z3 -smt2 -in SMTLIB2_COMPLIANT=true -t:12000 [2018-04-11 10:00:20,135 INFO L103 rtionOrderModulation]: Keeping assertion order OUTSIDE_LOOP_FIRST1 [2018-04-11 10:00:20,161 INFO L242 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST1 issued 2 check-sat command(s) [2018-04-11 10:00:20,162 INFO L243 tOrderPrioritization]: Conjunction of SSA is unsat [2018-04-11 10:00:20,165 INFO L270 TraceCheckSpWp]: Computing forward predicates... [2018-04-11 10:00:20,168 INFO L477 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 6 treesize of output 5 [2018-04-11 10:00:20,168 INFO L267 ElimStorePlain]: Start of recursive call 2: End of recursive call: and 1 xjuncts. [2018-04-11 10:00:20,173 INFO L477 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 6 treesize of output 5 [2018-04-11 10:00:20,173 INFO L267 ElimStorePlain]: Start of recursive call 3: End of recursive call: and 1 xjuncts. [2018-04-11 10:00:20,182 INFO L267 ElimStorePlain]: Start of recursive call 1: 2 dim-1 vars, End of recursive call: and 1 xjuncts. [2018-04-11 10:00:20,182 INFO L202 ElimStorePlain]: Needed 3 recursive calls to eliminate 2 variables, input treesize:16, output treesize:14 [2018-04-11 10:00:20,197 INFO L700 Elim1Store]: detected not equals via solver [2018-04-11 10:00:20,198 INFO L477 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 1 select indices, 1 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 12 treesize of output 15 [2018-04-11 10:00:20,198 INFO L267 ElimStorePlain]: Start of recursive call 2: End of recursive call: and 1 xjuncts. [2018-04-11 10:00:20,234 INFO L700 Elim1Store]: detected not equals via solver [2018-04-11 10:00:20,234 INFO L700 Elim1Store]: detected not equals via solver [2018-04-11 10:00:20,235 INFO L477 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 2 select indices, 2 select index equivalence classes, 2 disjoint index pairs (out of 1 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 17 treesize of output 21 [2018-04-11 10:00:20,235 INFO L267 ElimStorePlain]: Start of recursive call 3: End of recursive call: and 1 xjuncts. [2018-04-11 10:00:20,242 INFO L267 ElimStorePlain]: Start of recursive call 1: 1 dim-0 vars, 2 dim-1 vars, End of recursive call: and 1 xjuncts. [2018-04-11 10:00:20,242 INFO L202 ElimStorePlain]: Needed 3 recursive calls to eliminate 3 variables, input treesize:31, output treesize:23 [2018-04-11 10:00:20,372 INFO L700 Elim1Store]: detected not equals via solver [2018-04-11 10:00:20,372 INFO L700 Elim1Store]: detected not equals via solver [2018-04-11 10:00:20,373 INFO L700 Elim1Store]: detected not equals via solver [2018-04-11 10:00:20,373 INFO L477 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 3 select indices, 3 select index equivalence classes, 4 disjoint index pairs (out of 3 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 16 treesize of output 13 [2018-04-11 10:00:20,373 INFO L267 ElimStorePlain]: Start of recursive call 2: End of recursive call: and 1 xjuncts. [2018-04-11 10:00:20,381 INFO L477 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 1 select indices, 1 select index equivalence classes, 3 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 12 treesize of output 15 [2018-04-11 10:00:20,381 INFO L267 ElimStorePlain]: Start of recursive call 3: End of recursive call: and 1 xjuncts. [2018-04-11 10:00:20,386 INFO L267 ElimStorePlain]: Start of recursive call 1: 1 dim-0 vars, 2 dim-1 vars, End of recursive call: and 1 xjuncts. [2018-04-11 10:00:20,387 INFO L202 ElimStorePlain]: Needed 3 recursive calls to eliminate 3 variables, input treesize:34, output treesize:18 [2018-04-11 10:00:20,418 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 11 treesize of output 8 [2018-04-11 10:00:20,420 INFO L477 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 8 treesize of output 7 [2018-04-11 10:00:20,420 INFO L267 ElimStorePlain]: Start of recursive call 3: End of recursive call: and 1 xjuncts. [2018-04-11 10:00:20,424 INFO L267 ElimStorePlain]: Start of recursive call 2: 1 dim-1 vars, End of recursive call: and 1 xjuncts. [2018-04-11 10:00:20,431 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 11 treesize of output 8 [2018-04-11 10:00:20,433 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 8 treesize of output 7 [2018-04-11 10:00:20,433 INFO L267 ElimStorePlain]: Start of recursive call 5: End of recursive call: and 1 xjuncts. [2018-04-11 10:00:20,434 INFO L267 ElimStorePlain]: Start of recursive call 4: 1 dim-1 vars, End of recursive call: and 1 xjuncts. [2018-04-11 10:00:20,448 INFO L267 ElimStorePlain]: Start of recursive call 1: 1 dim-0 vars, 2 dim-2 vars, End of recursive call: and 1 xjuncts. [2018-04-11 10:00:20,448 INFO L202 ElimStorePlain]: Needed 5 recursive calls to eliminate 3 variables, input treesize:37, output treesize:30 [2018-04-11 10:00:20,501 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 25 treesize of output 19 [2018-04-11 10:00:20,502 INFO L477 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 1 select indices, 1 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 19 treesize of output 10 [2018-04-11 10:00:20,502 INFO L267 ElimStorePlain]: Start of recursive call 3: End of recursive call: and 1 xjuncts. [2018-04-11 10:00:20,504 INFO L267 ElimStorePlain]: Start of recursive call 2: 1 dim-1 vars, End of recursive call: and 1 xjuncts. [2018-04-11 10:00:20,509 INFO L477 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 0 stores, 1 select indices, 1 select index equivalence classes, 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 11 [2018-04-11 10:00:20,512 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 11 treesize of output 3 [2018-04-11 10:00:20,512 INFO L267 ElimStorePlain]: Start of recursive call 5: End of recursive call: and 1 xjuncts. [2018-04-11 10:00:20,513 INFO L267 ElimStorePlain]: Start of recursive call 4: 1 dim-1 vars, End of recursive call: and 1 xjuncts. [2018-04-11 10:00:20,517 INFO L267 ElimStorePlain]: Start of recursive call 1: 2 dim-0 vars, 2 dim-2 vars, End of recursive call: 1 dim-0 vars, and 1 xjuncts. [2018-04-11 10:00:20,517 INFO L202 ElimStorePlain]: Needed 5 recursive calls to eliminate 4 variables, input treesize:44, output treesize:18 [2018-04-11 10:00:20,890 INFO L134 CoverageAnalysis]: Checked inductivity of 12 backedges. 0 proven. 12 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-04-11 10:00:20,907 INFO L320 seRefinementStrategy]: Constructing automaton from 0 perfect and 2 imperfect interpolant sequences. [2018-04-11 10:00:20,907 INFO L335 seRefinementStrategy]: Number of different interpolants: perfect sequences [] imperfect sequences [20, 20] total 37 [2018-04-11 10:00:20,908 INFO L442 AbstractCegarLoop]: Interpolant automaton has 38 states [2018-04-11 10:00:20,908 INFO L132 InterpolantAutomaton]: Constructing interpolant automaton starting with 38 interpolants. [2018-04-11 10:00:20,908 INFO L133 InterpolantAutomaton]: CoverageRelationStatistics Valid=105, Invalid=1301, Unknown=0, NotChecked=0, Total=1406 [2018-04-11 10:00:20,908 INFO L87 Difference]: Start difference. First operand 168 states and 181 transitions. Second operand 38 states. [2018-04-11 10:00:22,812 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-04-11 10:00:22,813 INFO L93 Difference]: Finished difference Result 228 states and 249 transitions. [2018-04-11 10:00:22,813 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 41 states. [2018-04-11 10:00:22,813 INFO L78 Accepts]: Start accepts. Automaton has 38 states. Word has length 38 [2018-04-11 10:00:22,813 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-04-11 10:00:22,813 INFO L225 Difference]: With dead ends: 228 [2018-04-11 10:00:22,813 INFO L226 Difference]: Without dead ends: 228 [2018-04-11 10:00:22,814 INFO L567 BasicCegarLoop]: 0 DeclaredPredicates, 91 GetRequests, 19 SyntacticMatches, 2 SemanticMatches, 70 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1157 ImplicationChecksByTransitivity, 2.3s TimeCoverageRelationStatistics Valid=512, Invalid=4600, Unknown=0, NotChecked=0, Total=5112 [2018-04-11 10:00:22,815 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 228 states. [2018-04-11 10:00:22,817 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 228 to 167. [2018-04-11 10:00:22,817 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 167 states. [2018-04-11 10:00:22,818 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 167 states to 167 states and 180 transitions. [2018-04-11 10:00:22,818 INFO L78 Accepts]: Start accepts. Automaton has 167 states and 180 transitions. Word has length 38 [2018-04-11 10:00:22,818 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-04-11 10:00:22,819 INFO L459 AbstractCegarLoop]: Abstraction has 167 states and 180 transitions. [2018-04-11 10:00:22,819 INFO L460 AbstractCegarLoop]: Interpolant automaton has 38 states. [2018-04-11 10:00:22,819 INFO L276 IsEmpty]: Start isEmpty. Operand 167 states and 180 transitions. [2018-04-11 10:00:22,819 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 42 [2018-04-11 10:00:22,819 INFO L347 BasicCegarLoop]: Found error trace [2018-04-11 10:00:22,820 INFO L355 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2018-04-11 10:00:22,820 INFO L408 AbstractCegarLoop]: === Iteration 22 === [mainErr1RequiresViolation, mainErr2EnsuresViolationMEMORY_LEAK, mainErr0RequiresViolation, __U_MULTI_fopenbsd_cstpncpy_alloca_true_valid_memsafety_true_termination_i__cstpncpyErr2RequiresViolation, __U_MULTI_fopenbsd_cstpncpy_alloca_true_valid_memsafety_true_termination_i__cstpncpyErr12RequiresViolation, __U_MULTI_fopenbsd_cstpncpy_alloca_true_valid_memsafety_true_termination_i__cstpncpyErr17RequiresViolation, __U_MULTI_fopenbsd_cstpncpy_alloca_true_valid_memsafety_true_termination_i__cstpncpyErr3RequiresViolation, __U_MULTI_fopenbsd_cstpncpy_alloca_true_valid_memsafety_true_termination_i__cstpncpyErr6RequiresViolation, __U_MULTI_fopenbsd_cstpncpy_alloca_true_valid_memsafety_true_termination_i__cstpncpyErr13RequiresViolation, __U_MULTI_fopenbsd_cstpncpy_alloca_true_valid_memsafety_true_termination_i__cstpncpyErr8RequiresViolation, __U_MULTI_fopenbsd_cstpncpy_alloca_true_valid_memsafety_true_termination_i__cstpncpyErr1RequiresViolation, __U_MULTI_fopenbsd_cstpncpy_alloca_true_valid_memsafety_true_termination_i__cstpncpyErr0RequiresViolation, __U_MULTI_fopenbsd_cstpncpy_alloca_true_valid_memsafety_true_termination_i__cstpncpyErr9RequiresViolation, __U_MULTI_fopenbsd_cstpncpy_alloca_true_valid_memsafety_true_termination_i__cstpncpyErr10RequiresViolation, __U_MULTI_fopenbsd_cstpncpy_alloca_true_valid_memsafety_true_termination_i__cstpncpyErr15RequiresViolation, __U_MULTI_fopenbsd_cstpncpy_alloca_true_valid_memsafety_true_termination_i__cstpncpyErr5RequiresViolation, __U_MULTI_fopenbsd_cstpncpy_alloca_true_valid_memsafety_true_termination_i__cstpncpyErr4RequiresViolation, __U_MULTI_fopenbsd_cstpncpy_alloca_true_valid_memsafety_true_termination_i__cstpncpyErr11RequiresViolation, __U_MULTI_fopenbsd_cstpncpy_alloca_true_valid_memsafety_true_termination_i__cstpncpyErr16RequiresViolation, __U_MULTI_fopenbsd_cstpncpy_alloca_true_valid_memsafety_true_termination_i__cstpncpyErr7RequiresViolation, __U_MULTI_fopenbsd_cstpncpy_alloca_true_valid_memsafety_true_termination_i__cstpncpyErr14RequiresViolation]=== [2018-04-11 10:00:22,820 INFO L82 PathProgramCache]: Analyzing trace with hash -1950848603, now seen corresponding path program 1 times [2018-04-11 10:00:22,820 INFO L213 ckRefinementStrategy]: Switched to mode SMTINTERPOL_TREE_INTERPOLANTS [2018-04-11 10:00:22,820 INFO L68 tionRefinementEngine]: Using refinement strategy CamelRefinementStrategy [2018-04-11 10:00:22,821 INFO L119 rtionOrderModulation]: Craig nested/tree interpolation forces the following order [2018-04-11 10:00:22,821 INFO L101 rtionOrderModulation]: Changing assertion order to NOT_INCREMENTALLY [2018-04-11 10:00:22,821 INFO L119 rtionOrderModulation]: Craig nested/tree interpolation forces the following order [2018-04-11 10:00:22,831 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-04-11 10:00:22,832 WARN L137 erpolLogProxyWrapper]: Using partial proofs (cut at CNF-level). Set option :produce-proofs to true to get complete proofs. [2018-04-11 10:00:22,984 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-04-11 10:00:22,984 INFO L320 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2018-04-11 10:00:22,984 INFO L335 seRefinementStrategy]: Number of different interpolants: perfect sequences [9] imperfect sequences [] total 9 [2018-04-11 10:00:22,985 INFO L442 AbstractCegarLoop]: Interpolant automaton has 10 states [2018-04-11 10:00:22,985 INFO L132 InterpolantAutomaton]: Constructing interpolant automaton starting with 10 interpolants. [2018-04-11 10:00:22,985 INFO L133 InterpolantAutomaton]: CoverageRelationStatistics Valid=22, Invalid=68, Unknown=0, NotChecked=0, Total=90 [2018-04-11 10:00:22,985 INFO L87 Difference]: Start difference. First operand 167 states and 180 transitions. Second operand 10 states. [2018-04-11 10:00:23,076 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-04-11 10:00:23,076 INFO L93 Difference]: Finished difference Result 166 states and 179 transitions. [2018-04-11 10:00:23,076 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 11 states. [2018-04-11 10:00:23,076 INFO L78 Accepts]: Start accepts. Automaton has 10 states. Word has length 41 [2018-04-11 10:00:23,076 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-04-11 10:00:23,076 INFO L225 Difference]: With dead ends: 166 [2018-04-11 10:00:23,076 INFO L226 Difference]: Without dead ends: 56 [2018-04-11 10:00:23,077 INFO L567 BasicCegarLoop]: 0 DeclaredPredicates, 16 GetRequests, 3 SyntacticMatches, 1 SemanticMatches, 12 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 21 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=40, Invalid=142, Unknown=0, NotChecked=0, Total=182 [2018-04-11 10:00:23,077 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 56 states. [2018-04-11 10:00:23,077 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 56 to 56. [2018-04-11 10:00:23,077 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 56 states. [2018-04-11 10:00:23,077 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 56 states to 56 states and 58 transitions. [2018-04-11 10:00:23,078 INFO L78 Accepts]: Start accepts. Automaton has 56 states and 58 transitions. Word has length 41 [2018-04-11 10:00:23,078 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-04-11 10:00:23,078 INFO L459 AbstractCegarLoop]: Abstraction has 56 states and 58 transitions. [2018-04-11 10:00:23,078 INFO L460 AbstractCegarLoop]: Interpolant automaton has 10 states. [2018-04-11 10:00:23,078 INFO L276 IsEmpty]: Start isEmpty. Operand 56 states and 58 transitions. [2018-04-11 10:00:23,078 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 45 [2018-04-11 10:00:23,078 INFO L347 BasicCegarLoop]: Found error trace [2018-04-11 10:00:23,078 INFO L355 BasicCegarLoop]: trace histogram [3, 3, 3, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2018-04-11 10:00:23,078 INFO L408 AbstractCegarLoop]: === Iteration 23 === [mainErr1RequiresViolation, mainErr2EnsuresViolationMEMORY_LEAK, mainErr0RequiresViolation, __U_MULTI_fopenbsd_cstpncpy_alloca_true_valid_memsafety_true_termination_i__cstpncpyErr2RequiresViolation, __U_MULTI_fopenbsd_cstpncpy_alloca_true_valid_memsafety_true_termination_i__cstpncpyErr12RequiresViolation, __U_MULTI_fopenbsd_cstpncpy_alloca_true_valid_memsafety_true_termination_i__cstpncpyErr17RequiresViolation, __U_MULTI_fopenbsd_cstpncpy_alloca_true_valid_memsafety_true_termination_i__cstpncpyErr3RequiresViolation, __U_MULTI_fopenbsd_cstpncpy_alloca_true_valid_memsafety_true_termination_i__cstpncpyErr6RequiresViolation, __U_MULTI_fopenbsd_cstpncpy_alloca_true_valid_memsafety_true_termination_i__cstpncpyErr13RequiresViolation, __U_MULTI_fopenbsd_cstpncpy_alloca_true_valid_memsafety_true_termination_i__cstpncpyErr8RequiresViolation, __U_MULTI_fopenbsd_cstpncpy_alloca_true_valid_memsafety_true_termination_i__cstpncpyErr1RequiresViolation, __U_MULTI_fopenbsd_cstpncpy_alloca_true_valid_memsafety_true_termination_i__cstpncpyErr0RequiresViolation, __U_MULTI_fopenbsd_cstpncpy_alloca_true_valid_memsafety_true_termination_i__cstpncpyErr9RequiresViolation, __U_MULTI_fopenbsd_cstpncpy_alloca_true_valid_memsafety_true_termination_i__cstpncpyErr10RequiresViolation, __U_MULTI_fopenbsd_cstpncpy_alloca_true_valid_memsafety_true_termination_i__cstpncpyErr15RequiresViolation, __U_MULTI_fopenbsd_cstpncpy_alloca_true_valid_memsafety_true_termination_i__cstpncpyErr5RequiresViolation, __U_MULTI_fopenbsd_cstpncpy_alloca_true_valid_memsafety_true_termination_i__cstpncpyErr4RequiresViolation, __U_MULTI_fopenbsd_cstpncpy_alloca_true_valid_memsafety_true_termination_i__cstpncpyErr11RequiresViolation, __U_MULTI_fopenbsd_cstpncpy_alloca_true_valid_memsafety_true_termination_i__cstpncpyErr16RequiresViolation, __U_MULTI_fopenbsd_cstpncpy_alloca_true_valid_memsafety_true_termination_i__cstpncpyErr7RequiresViolation, __U_MULTI_fopenbsd_cstpncpy_alloca_true_valid_memsafety_true_termination_i__cstpncpyErr14RequiresViolation]=== [2018-04-11 10:00:23,078 INFO L82 PathProgramCache]: Analyzing trace with hash 1564572039, now seen corresponding path program 2 times [2018-04-11 10:00:23,078 INFO L213 ckRefinementStrategy]: Switched to mode SMTINTERPOL_TREE_INTERPOLANTS [2018-04-11 10:00:23,078 INFO L68 tionRefinementEngine]: Using refinement strategy CamelRefinementStrategy [2018-04-11 10:00:23,079 INFO L119 rtionOrderModulation]: Craig nested/tree interpolation forces the following order [2018-04-11 10:00:23,079 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-04-11 10:00:23,079 INFO L119 rtionOrderModulation]: Craig nested/tree interpolation forces the following order [2018-04-11 10:00:23,088 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-04-11 10:00:23,088 WARN L137 erpolLogProxyWrapper]: Using partial proofs (cut at CNF-level). Set option :produce-proofs to true to get complete proofs. [2018-04-11 10:00:23,632 INFO L134 CoverageAnalysis]: Checked inductivity of 14 backedges. 0 proven. 14 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-04-11 10:00:23,632 INFO L308 seRefinementStrategy]: The current sequences of interpolants are not accepted, trying to find more. [2018-04-11 10:00:23,632 INFO L213 ckRefinementStrategy]: Switched to mode Z3_FP No working directory specified, using /home/ultimate/work/ultimate/releaseScripts/default/UAutomizer-linux/z3 Starting monitored process 8 with z3 -smt2 -in SMTLIB2_COMPLIANT=true -t:12000 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 8 with z3 -smt2 -in SMTLIB2_COMPLIANT=true -t:12000 [2018-04-11 10:00:23,639 INFO L103 rtionOrderModulation]: Keeping assertion order OUTSIDE_LOOP_FIRST1 [2018-04-11 10:00:23,683 INFO L242 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST1 issued 2 check-sat command(s) [2018-04-11 10:00:23,683 INFO L243 tOrderPrioritization]: Conjunction of SSA is unsat [2018-04-11 10:00:23,689 INFO L270 TraceCheckSpWp]: Computing forward predicates... [2018-04-11 10:00:23,694 INFO L477 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 6 treesize of output 5 [2018-04-11 10:00:23,694 INFO L267 ElimStorePlain]: Start of recursive call 2: End of recursive call: and 1 xjuncts. [2018-04-11 10:00:23,703 INFO L477 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 6 treesize of output 5 [2018-04-11 10:00:23,704 INFO L267 ElimStorePlain]: Start of recursive call 3: End of recursive call: and 1 xjuncts. [2018-04-11 10:00:23,707 INFO L267 ElimStorePlain]: Start of recursive call 1: 2 dim-1 vars, End of recursive call: and 1 xjuncts. [2018-04-11 10:00:23,707 INFO L202 ElimStorePlain]: Needed 3 recursive calls to eliminate 2 variables, input treesize:16, output treesize:14 [2018-04-11 10:00:23,714 INFO L700 Elim1Store]: detected not equals via solver [2018-04-11 10:00:23,715 INFO L700 Elim1Store]: detected not equals via solver [2018-04-11 10:00:23,715 INFO L477 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 2 select indices, 2 select index equivalence classes, 2 disjoint index pairs (out of 1 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 17 treesize of output 21 [2018-04-11 10:00:23,716 INFO L267 ElimStorePlain]: Start of recursive call 2: End of recursive call: and 1 xjuncts. [2018-04-11 10:00:23,726 INFO L477 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 1 select indices, 1 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 12 treesize of output 15 [2018-04-11 10:00:23,727 INFO L267 ElimStorePlain]: Start of recursive call 3: End of recursive call: and 1 xjuncts. [2018-04-11 10:00:23,735 INFO L267 ElimStorePlain]: Start of recursive call 1: 1 dim-0 vars, 2 dim-1 vars, End of recursive call: and 1 xjuncts. [2018-04-11 10:00:23,735 INFO L202 ElimStorePlain]: Needed 3 recursive calls to eliminate 3 variables, input treesize:31, output treesize:23 [2018-04-11 10:00:23,880 INFO L700 Elim1Store]: detected not equals via solver [2018-04-11 10:00:23,880 INFO L700 Elim1Store]: detected not equals via solver [2018-04-11 10:00:23,881 INFO L700 Elim1Store]: detected not equals via solver [2018-04-11 10:00:23,881 INFO L477 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 3 select indices, 3 select index equivalence classes, 4 disjoint index pairs (out of 3 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 16 treesize of output 13 [2018-04-11 10:00:23,882 INFO L267 ElimStorePlain]: Start of recursive call 2: End of recursive call: and 1 xjuncts. [2018-04-11 10:00:23,889 INFO L477 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 1 select indices, 1 select index equivalence classes, 3 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 12 treesize of output 15 [2018-04-11 10:00:23,889 INFO L267 ElimStorePlain]: Start of recursive call 3: End of recursive call: and 1 xjuncts. [2018-04-11 10:00:23,893 INFO L267 ElimStorePlain]: Start of recursive call 1: 1 dim-0 vars, 2 dim-1 vars, End of recursive call: and 1 xjuncts. [2018-04-11 10:00:23,894 INFO L202 ElimStorePlain]: Needed 3 recursive calls to eliminate 3 variables, input treesize:34, output treesize:18 [2018-04-11 10:00:23,918 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 11 treesize of output 8 [2018-04-11 10:00:23,919 INFO L477 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 8 treesize of output 7 [2018-04-11 10:00:23,919 INFO L267 ElimStorePlain]: Start of recursive call 3: End of recursive call: and 1 xjuncts. [2018-04-11 10:00:23,920 INFO L267 ElimStorePlain]: Start of recursive call 2: 1 dim-1 vars, End of recursive call: and 1 xjuncts. [2018-04-11 10:00:23,927 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 11 treesize of output 8 [2018-04-11 10:00:23,928 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 8 treesize of output 7 [2018-04-11 10:00:23,928 INFO L267 ElimStorePlain]: Start of recursive call 5: End of recursive call: and 1 xjuncts. [2018-04-11 10:00:23,929 INFO L267 ElimStorePlain]: Start of recursive call 4: 1 dim-1 vars, End of recursive call: and 1 xjuncts. [2018-04-11 10:00:23,933 INFO L267 ElimStorePlain]: Start of recursive call 1: 1 dim-0 vars, 2 dim-2 vars, End of recursive call: and 1 xjuncts. [2018-04-11 10:00:23,933 INFO L202 ElimStorePlain]: Needed 5 recursive calls to eliminate 3 variables, input treesize:37, output treesize:30 [2018-04-11 10:00:23,986 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 25 treesize of output 19 [2018-04-11 10:00:23,988 INFO L477 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 1 select indices, 1 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 19 treesize of output 10 [2018-04-11 10:00:23,988 INFO L267 ElimStorePlain]: Start of recursive call 3: End of recursive call: and 1 xjuncts. [2018-04-11 10:00:23,990 INFO L267 ElimStorePlain]: Start of recursive call 2: 1 dim-1 vars, End of recursive call: and 1 xjuncts. [2018-04-11 10:00:24,001 INFO L477 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 0 stores, 1 select indices, 1 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 15 treesize of output 11 [2018-04-11 10:00:24,002 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 11 treesize of output 3 [2018-04-11 10:00:24,002 INFO L267 ElimStorePlain]: Start of recursive call 5: End of recursive call: and 1 xjuncts. [2018-04-11 10:00:24,003 INFO L267 ElimStorePlain]: Start of recursive call 4: 1 dim-1 vars, End of recursive call: and 1 xjuncts. [2018-04-11 10:00:24,008 INFO L267 ElimStorePlain]: Start of recursive call 1: 2 dim-0 vars, 2 dim-2 vars, End of recursive call: 1 dim-0 vars, and 1 xjuncts. [2018-04-11 10:00:24,008 INFO L202 ElimStorePlain]: Needed 5 recursive calls to eliminate 4 variables, input treesize:44, output treesize:18 [2018-04-11 10:00:24,330 INFO L134 CoverageAnalysis]: Checked inductivity of 14 backedges. 0 proven. 14 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-04-11 10:00:24,347 INFO L320 seRefinementStrategy]: Constructing automaton from 0 perfect and 2 imperfect interpolant sequences. [2018-04-11 10:00:24,348 INFO L335 seRefinementStrategy]: Number of different interpolants: perfect sequences [] imperfect sequences [22, 20] total 39 [2018-04-11 10:00:24,348 INFO L442 AbstractCegarLoop]: Interpolant automaton has 40 states [2018-04-11 10:00:24,348 INFO L132 InterpolantAutomaton]: Constructing interpolant automaton starting with 40 interpolants. [2018-04-11 10:00:24,348 INFO L133 InterpolantAutomaton]: CoverageRelationStatistics Valid=129, Invalid=1431, Unknown=0, NotChecked=0, Total=1560 [2018-04-11 10:00:24,348 INFO L87 Difference]: Start difference. First operand 56 states and 58 transitions. Second operand 40 states. [2018-04-11 10:00:27,084 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-04-11 10:00:27,084 INFO L93 Difference]: Finished difference Result 105 states and 111 transitions. [2018-04-11 10:00:27,085 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 48 states. [2018-04-11 10:00:27,085 INFO L78 Accepts]: Start accepts. Automaton has 40 states. Word has length 44 [2018-04-11 10:00:27,085 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-04-11 10:00:27,085 INFO L225 Difference]: With dead ends: 105 [2018-04-11 10:00:27,085 INFO L226 Difference]: Without dead ends: 105 [2018-04-11 10:00:27,087 INFO L567 BasicCegarLoop]: 0 DeclaredPredicates, 109 GetRequests, 25 SyntacticMatches, 2 SemanticMatches, 82 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1759 ImplicationChecksByTransitivity, 3.2s TimeCoverageRelationStatistics Valid=746, Invalid=6226, Unknown=0, NotChecked=0, Total=6972 [2018-04-11 10:00:27,087 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 105 states. [2018-04-11 10:00:27,089 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 105 to 99. [2018-04-11 10:00:27,089 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 99 states. [2018-04-11 10:00:27,089 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 99 states to 99 states and 105 transitions. [2018-04-11 10:00:27,089 INFO L78 Accepts]: Start accepts. Automaton has 99 states and 105 transitions. Word has length 44 [2018-04-11 10:00:27,090 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-04-11 10:00:27,090 INFO L459 AbstractCegarLoop]: Abstraction has 99 states and 105 transitions. [2018-04-11 10:00:27,090 INFO L460 AbstractCegarLoop]: Interpolant automaton has 40 states. [2018-04-11 10:00:27,090 INFO L276 IsEmpty]: Start isEmpty. Operand 99 states and 105 transitions. [2018-04-11 10:00:27,090 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 64 [2018-04-11 10:00:27,090 INFO L347 BasicCegarLoop]: Found error trace [2018-04-11 10:00:27,091 INFO L355 BasicCegarLoop]: trace histogram [6, 6, 6, 5, 5, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2018-04-11 10:00:27,091 INFO L408 AbstractCegarLoop]: === Iteration 24 === [mainErr1RequiresViolation, mainErr2EnsuresViolationMEMORY_LEAK, mainErr0RequiresViolation, __U_MULTI_fopenbsd_cstpncpy_alloca_true_valid_memsafety_true_termination_i__cstpncpyErr2RequiresViolation, __U_MULTI_fopenbsd_cstpncpy_alloca_true_valid_memsafety_true_termination_i__cstpncpyErr12RequiresViolation, __U_MULTI_fopenbsd_cstpncpy_alloca_true_valid_memsafety_true_termination_i__cstpncpyErr17RequiresViolation, __U_MULTI_fopenbsd_cstpncpy_alloca_true_valid_memsafety_true_termination_i__cstpncpyErr3RequiresViolation, __U_MULTI_fopenbsd_cstpncpy_alloca_true_valid_memsafety_true_termination_i__cstpncpyErr6RequiresViolation, __U_MULTI_fopenbsd_cstpncpy_alloca_true_valid_memsafety_true_termination_i__cstpncpyErr13RequiresViolation, __U_MULTI_fopenbsd_cstpncpy_alloca_true_valid_memsafety_true_termination_i__cstpncpyErr8RequiresViolation, __U_MULTI_fopenbsd_cstpncpy_alloca_true_valid_memsafety_true_termination_i__cstpncpyErr1RequiresViolation, __U_MULTI_fopenbsd_cstpncpy_alloca_true_valid_memsafety_true_termination_i__cstpncpyErr0RequiresViolation, __U_MULTI_fopenbsd_cstpncpy_alloca_true_valid_memsafety_true_termination_i__cstpncpyErr9RequiresViolation, __U_MULTI_fopenbsd_cstpncpy_alloca_true_valid_memsafety_true_termination_i__cstpncpyErr10RequiresViolation, __U_MULTI_fopenbsd_cstpncpy_alloca_true_valid_memsafety_true_termination_i__cstpncpyErr15RequiresViolation, __U_MULTI_fopenbsd_cstpncpy_alloca_true_valid_memsafety_true_termination_i__cstpncpyErr5RequiresViolation, __U_MULTI_fopenbsd_cstpncpy_alloca_true_valid_memsafety_true_termination_i__cstpncpyErr4RequiresViolation, __U_MULTI_fopenbsd_cstpncpy_alloca_true_valid_memsafety_true_termination_i__cstpncpyErr11RequiresViolation, __U_MULTI_fopenbsd_cstpncpy_alloca_true_valid_memsafety_true_termination_i__cstpncpyErr16RequiresViolation, __U_MULTI_fopenbsd_cstpncpy_alloca_true_valid_memsafety_true_termination_i__cstpncpyErr7RequiresViolation, __U_MULTI_fopenbsd_cstpncpy_alloca_true_valid_memsafety_true_termination_i__cstpncpyErr14RequiresViolation]=== [2018-04-11 10:00:27,091 INFO L82 PathProgramCache]: Analyzing trace with hash -1476451343, now seen corresponding path program 1 times [2018-04-11 10:00:27,091 INFO L213 ckRefinementStrategy]: Switched to mode SMTINTERPOL_TREE_INTERPOLANTS [2018-04-11 10:00:27,091 INFO L68 tionRefinementEngine]: Using refinement strategy CamelRefinementStrategy [2018-04-11 10:00:27,092 INFO L119 rtionOrderModulation]: Craig nested/tree interpolation forces the following order [2018-04-11 10:00:27,092 INFO L101 rtionOrderModulation]: Changing assertion order to NOT_INCREMENTALLY [2018-04-11 10:00:27,092 INFO L119 rtionOrderModulation]: Craig nested/tree interpolation forces the following order [2018-04-11 10:00:27,115 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-04-11 10:00:27,116 WARN L137 erpolLogProxyWrapper]: Using partial proofs (cut at CNF-level). Set option :produce-proofs to true to get complete proofs. [2018-04-11 10:00:28,068 INFO L134 CoverageAnalysis]: Checked inductivity of 74 backedges. 57 proven. 17 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-04-11 10:00:28,068 INFO L308 seRefinementStrategy]: The current sequences of interpolants are not accepted, trying to find more. [2018-04-11 10:00:28,069 INFO L213 ckRefinementStrategy]: Switched to mode Z3_FP No working directory specified, using /home/ultimate/work/ultimate/releaseScripts/default/UAutomizer-linux/z3 Starting monitored process 9 with z3 -smt2 -in SMTLIB2_COMPLIANT=true -t:12000 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 9 with z3 -smt2 -in SMTLIB2_COMPLIANT=true -t:12000 [2018-04-11 10:00:28,080 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-04-11 10:00:28,154 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-04-11 10:00:28,158 INFO L270 TraceCheckSpWp]: Computing forward predicates... [2018-04-11 10:00:28,160 INFO L477 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 6 treesize of output 5 [2018-04-11 10:00:28,160 INFO L267 ElimStorePlain]: Start of recursive call 2: End of recursive call: and 1 xjuncts. [2018-04-11 10:00:28,164 INFO L477 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 6 treesize of output 5 [2018-04-11 10:00:28,164 INFO L267 ElimStorePlain]: Start of recursive call 3: End of recursive call: and 1 xjuncts. [2018-04-11 10:00:28,166 INFO L267 ElimStorePlain]: Start of recursive call 1: 2 dim-1 vars, End of recursive call: and 1 xjuncts. [2018-04-11 10:00:28,166 INFO L202 ElimStorePlain]: Needed 3 recursive calls to eliminate 2 variables, input treesize:16, output treesize:14 [2018-04-11 10:00:28,171 INFO L700 Elim1Store]: detected not equals via solver [2018-04-11 10:00:28,172 INFO L477 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 1 select indices, 1 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 12 treesize of output 15 [2018-04-11 10:00:28,172 INFO L267 ElimStorePlain]: Start of recursive call 2: End of recursive call: and 1 xjuncts. [2018-04-11 10:00:28,178 INFO L700 Elim1Store]: detected not equals via solver [2018-04-11 10:00:28,178 INFO L700 Elim1Store]: detected not equals via solver [2018-04-11 10:00:28,178 INFO L477 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 2 select indices, 2 select index equivalence classes, 2 disjoint index pairs (out of 1 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 11 treesize of output 4 [2018-04-11 10:00:28,179 INFO L267 ElimStorePlain]: Start of recursive call 3: End of recursive call: and 1 xjuncts. [2018-04-11 10:00:28,181 INFO L267 ElimStorePlain]: Start of recursive call 1: 1 dim-0 vars, 2 dim-1 vars, End of recursive call: and 1 xjuncts. [2018-04-11 10:00:28,182 INFO L202 ElimStorePlain]: Needed 3 recursive calls to eliminate 3 variables, input treesize:25, output treesize:13 [2018-04-11 10:00:28,213 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 1 new quantified variables, introduced 2 case distinctions, treesize of input 17 treesize of output 21 [2018-04-11 10:00:28,214 INFO L267 ElimStorePlain]: Start of recursive call 2: End of recursive call: and 2 xjuncts. [2018-04-11 10:00:28,221 INFO L267 ElimStorePlain]: Start of recursive call 1: 1 dim-1 vars, End of recursive call: and 2 xjuncts. [2018-04-11 10:00:28,221 INFO L202 ElimStorePlain]: Needed 2 recursive calls to eliminate 1 variables, input treesize:20, output treesize:32 [2018-04-11 10:00:28,255 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 38 treesize of output 35 [2018-04-11 10:00:28,257 INFO L477 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 8 treesize of output 7 [2018-04-11 10:00:28,257 INFO L267 ElimStorePlain]: Start of recursive call 3: End of recursive call: and 1 xjuncts. [2018-04-11 10:00:28,263 INFO L267 ElimStorePlain]: Start of recursive call 2: 1 dim-1 vars, End of recursive call: and 1 xjuncts. [2018-04-11 10:00:28,278 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 34 treesize of output 31 [2018-04-11 10:00:28,279 INFO L477 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 8 treesize of output 7 [2018-04-11 10:00:28,280 INFO L267 ElimStorePlain]: Start of recursive call 5: End of recursive call: and 1 xjuncts. [2018-04-11 10:00:28,284 INFO L267 ElimStorePlain]: Start of recursive call 4: 1 dim-1 vars, End of recursive call: and 1 xjuncts. [2018-04-11 10:00:28,297 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 28 treesize of output 25 [2018-04-11 10:00:28,298 INFO L477 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 8 treesize of output 7 [2018-04-11 10:00:28,299 INFO L267 ElimStorePlain]: Start of recursive call 7: End of recursive call: and 1 xjuncts. [2018-04-11 10:00:28,302 INFO L267 ElimStorePlain]: Start of recursive call 6: 1 dim-1 vars, End of recursive call: and 1 xjuncts. [2018-04-11 10:00:28,314 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 24 treesize of output 21 [2018-04-11 10:00:28,315 INFO L477 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 8 treesize of output 7 [2018-04-11 10:00:28,315 INFO L267 ElimStorePlain]: Start of recursive call 9: End of recursive call: and 1 xjuncts. [2018-04-11 10:00:28,318 INFO L267 ElimStorePlain]: Start of recursive call 8: 1 dim-1 vars, End of recursive call: and 1 xjuncts. [2018-04-11 10:00:28,329 INFO L267 ElimStorePlain]: Start of recursive call 1: 1 dim-0 vars, 4 dim-2 vars, End of recursive call: and 2 xjuncts. [2018-04-11 10:00:28,329 INFO L202 ElimStorePlain]: Needed 9 recursive calls to eliminate 5 variables, input treesize:67, output treesize:52 [2018-04-11 10:00:28,412 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 34 treesize of output 30 [2018-04-11 10:00:28,414 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 11 treesize of output 3 [2018-04-11 10:00:28,414 INFO L267 ElimStorePlain]: Start of recursive call 3: End of recursive call: and 1 xjuncts. [2018-04-11 10:00:28,423 INFO L267 ElimStorePlain]: Start of recursive call 2: 1 dim-1 vars, End of recursive call: and 1 xjuncts. [2018-04-11 10:00:28,436 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 45 treesize of output 39 [2018-04-11 10:00:28,437 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 20 treesize of output 11 [2018-04-11 10:00:28,437 INFO L267 ElimStorePlain]: Start of recursive call 5: End of recursive call: and 1 xjuncts. [2018-04-11 10:00:28,442 INFO L267 ElimStorePlain]: Start of recursive call 4: 1 dim-1 vars, End of recursive call: and 1 xjuncts. [2018-04-11 10:00:28,452 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 30 treesize of output 26 [2018-04-11 10:00:28,454 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 11 treesize of output 3 [2018-04-11 10:00:28,454 INFO L267 ElimStorePlain]: Start of recursive call 7: End of recursive call: and 1 xjuncts. [2018-04-11 10:00:28,457 INFO L267 ElimStorePlain]: Start of recursive call 6: 1 dim-1 vars, End of recursive call: and 1 xjuncts. [2018-04-11 10:00:28,466 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 23 treesize of output 19 [2018-04-11 10:00:28,468 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 11 treesize of output 3 [2018-04-11 10:00:28,468 INFO L267 ElimStorePlain]: Start of recursive call 9: End of recursive call: and 1 xjuncts. [2018-04-11 10:00:28,471 INFO L267 ElimStorePlain]: Start of recursive call 8: 1 dim-1 vars, End of recursive call: and 1 xjuncts. [2018-04-11 10:00:28,485 INFO L267 ElimStorePlain]: Start of recursive call 1: 4 dim-0 vars, 4 dim-2 vars, End of recursive call: 1 dim-0 vars, and 2 xjuncts. [2018-04-11 10:00:28,485 INFO L202 ElimStorePlain]: Needed 9 recursive calls to eliminate 8 variables, input treesize:80, output treesize:29 [2018-04-11 10:00:29,442 INFO L134 CoverageAnalysis]: Checked inductivity of 74 backedges. 0 proven. 74 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-04-11 10:00:29,459 INFO L320 seRefinementStrategy]: Constructing automaton from 0 perfect and 2 imperfect interpolant sequences. [2018-04-11 10:00:29,460 INFO L335 seRefinementStrategy]: Number of different interpolants: perfect sequences [] imperfect sequences [30, 28] total 53 [2018-04-11 10:00:29,460 INFO L442 AbstractCegarLoop]: Interpolant automaton has 54 states [2018-04-11 10:00:29,460 INFO L132 InterpolantAutomaton]: Constructing interpolant automaton starting with 54 interpolants. [2018-04-11 10:00:29,461 INFO L133 InterpolantAutomaton]: CoverageRelationStatistics Valid=209, Invalid=2653, Unknown=0, NotChecked=0, Total=2862 [2018-04-11 10:00:29,461 INFO L87 Difference]: Start difference. First operand 99 states and 105 transitions. Second operand 54 states. [2018-04-11 10:00:32,796 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-04-11 10:00:32,796 INFO L93 Difference]: Finished difference Result 113 states and 119 transitions. [2018-04-11 10:00:32,796 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 44 states. [2018-04-11 10:00:32,797 INFO L78 Accepts]: Start accepts. Automaton has 54 states. Word has length 63 [2018-04-11 10:00:32,797 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-04-11 10:00:32,797 INFO L225 Difference]: With dead ends: 113 [2018-04-11 10:00:32,797 INFO L226 Difference]: Without dead ends: 72 [2018-04-11 10:00:32,798 INFO L567 BasicCegarLoop]: 0 DeclaredPredicates, 131 GetRequests, 37 SyntacticMatches, 3 SemanticMatches, 91 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 2274 ImplicationChecksByTransitivity, 3.8s TimeCoverageRelationStatistics Valid=652, Invalid=7904, Unknown=0, NotChecked=0, Total=8556 [2018-04-11 10:00:32,798 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 72 states. [2018-04-11 10:00:32,800 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 72 to 69. [2018-04-11 10:00:32,800 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 69 states. [2018-04-11 10:00:32,800 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 69 states to 69 states and 69 transitions. [2018-04-11 10:00:32,800 INFO L78 Accepts]: Start accepts. Automaton has 69 states and 69 transitions. Word has length 63 [2018-04-11 10:00:32,800 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-04-11 10:00:32,801 INFO L459 AbstractCegarLoop]: Abstraction has 69 states and 69 transitions. [2018-04-11 10:00:32,801 INFO L460 AbstractCegarLoop]: Interpolant automaton has 54 states. [2018-04-11 10:00:32,801 INFO L276 IsEmpty]: Start isEmpty. Operand 69 states and 69 transitions. [2018-04-11 10:00:32,801 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 69 [2018-04-11 10:00:32,801 INFO L347 BasicCegarLoop]: Found error trace [2018-04-11 10:00:32,801 INFO L355 BasicCegarLoop]: trace histogram [7, 7, 7, 6, 6, 6, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2018-04-11 10:00:32,801 INFO L408 AbstractCegarLoop]: === Iteration 25 === [mainErr1RequiresViolation, mainErr2EnsuresViolationMEMORY_LEAK, mainErr0RequiresViolation, __U_MULTI_fopenbsd_cstpncpy_alloca_true_valid_memsafety_true_termination_i__cstpncpyErr2RequiresViolation, __U_MULTI_fopenbsd_cstpncpy_alloca_true_valid_memsafety_true_termination_i__cstpncpyErr12RequiresViolation, __U_MULTI_fopenbsd_cstpncpy_alloca_true_valid_memsafety_true_termination_i__cstpncpyErr17RequiresViolation, __U_MULTI_fopenbsd_cstpncpy_alloca_true_valid_memsafety_true_termination_i__cstpncpyErr3RequiresViolation, __U_MULTI_fopenbsd_cstpncpy_alloca_true_valid_memsafety_true_termination_i__cstpncpyErr6RequiresViolation, __U_MULTI_fopenbsd_cstpncpy_alloca_true_valid_memsafety_true_termination_i__cstpncpyErr13RequiresViolation, __U_MULTI_fopenbsd_cstpncpy_alloca_true_valid_memsafety_true_termination_i__cstpncpyErr8RequiresViolation, __U_MULTI_fopenbsd_cstpncpy_alloca_true_valid_memsafety_true_termination_i__cstpncpyErr1RequiresViolation, __U_MULTI_fopenbsd_cstpncpy_alloca_true_valid_memsafety_true_termination_i__cstpncpyErr0RequiresViolation, __U_MULTI_fopenbsd_cstpncpy_alloca_true_valid_memsafety_true_termination_i__cstpncpyErr9RequiresViolation, __U_MULTI_fopenbsd_cstpncpy_alloca_true_valid_memsafety_true_termination_i__cstpncpyErr10RequiresViolation, __U_MULTI_fopenbsd_cstpncpy_alloca_true_valid_memsafety_true_termination_i__cstpncpyErr15RequiresViolation, __U_MULTI_fopenbsd_cstpncpy_alloca_true_valid_memsafety_true_termination_i__cstpncpyErr5RequiresViolation, __U_MULTI_fopenbsd_cstpncpy_alloca_true_valid_memsafety_true_termination_i__cstpncpyErr4RequiresViolation, __U_MULTI_fopenbsd_cstpncpy_alloca_true_valid_memsafety_true_termination_i__cstpncpyErr11RequiresViolation, __U_MULTI_fopenbsd_cstpncpy_alloca_true_valid_memsafety_true_termination_i__cstpncpyErr16RequiresViolation, __U_MULTI_fopenbsd_cstpncpy_alloca_true_valid_memsafety_true_termination_i__cstpncpyErr7RequiresViolation, __U_MULTI_fopenbsd_cstpncpy_alloca_true_valid_memsafety_true_termination_i__cstpncpyErr14RequiresViolation]=== [2018-04-11 10:00:32,802 INFO L82 PathProgramCache]: Analyzing trace with hash 754302975, now seen corresponding path program 3 times [2018-04-11 10:00:32,802 INFO L213 ckRefinementStrategy]: Switched to mode SMTINTERPOL_TREE_INTERPOLANTS [2018-04-11 10:00:32,802 INFO L68 tionRefinementEngine]: Using refinement strategy CamelRefinementStrategy [2018-04-11 10:00:32,802 INFO L119 rtionOrderModulation]: Craig nested/tree interpolation forces the following order [2018-04-11 10:00:32,803 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-04-11 10:00:32,803 INFO L119 rtionOrderModulation]: Craig nested/tree interpolation forces the following order [2018-04-11 10:00:32,829 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-04-11 10:00:32,830 WARN L137 erpolLogProxyWrapper]: Using partial proofs (cut at CNF-level). Set option :produce-proofs to true to get complete proofs. [2018-04-11 10:00:33,806 INFO L134 CoverageAnalysis]: Checked inductivity of 114 backedges. 59 proven. 55 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-04-11 10:00:33,806 INFO L308 seRefinementStrategy]: The current sequences of interpolants are not accepted, trying to find more. [2018-04-11 10:00:33,806 INFO L213 ckRefinementStrategy]: Switched to mode Z3_FP No working directory specified, using /home/ultimate/work/ultimate/releaseScripts/default/UAutomizer-linux/z3 Starting monitored process 10 with z3 -smt2 -in SMTLIB2_COMPLIANT=true -t:12000 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 10 with z3 -smt2 -in SMTLIB2_COMPLIANT=true -t:12000 [2018-04-11 10:00:33,812 INFO L103 rtionOrderModulation]: Keeping assertion order OUTSIDE_LOOP_FIRST2 [2018-04-11 10:00:33,983 INFO L242 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST2 issued 7 check-sat command(s) [2018-04-11 10:00:33,983 INFO L243 tOrderPrioritization]: Conjunction of SSA is unsat [2018-04-11 10:00:33,988 INFO L270 TraceCheckSpWp]: Computing forward predicates... [2018-04-11 10:00:33,989 INFO L477 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 6 treesize of output 5 [2018-04-11 10:00:33,990 INFO L267 ElimStorePlain]: Start of recursive call 2: End of recursive call: and 1 xjuncts. [2018-04-11 10:00:33,995 INFO L477 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 6 treesize of output 5 [2018-04-11 10:00:33,996 INFO L267 ElimStorePlain]: Start of recursive call 3: End of recursive call: and 1 xjuncts. [2018-04-11 10:00:33,998 INFO L267 ElimStorePlain]: Start of recursive call 1: 2 dim-1 vars, End of recursive call: and 1 xjuncts. [2018-04-11 10:00:33,998 INFO L202 ElimStorePlain]: Needed 3 recursive calls to eliminate 2 variables, input treesize:16, output treesize:14 [2018-04-11 10:00:34,003 INFO L700 Elim1Store]: detected not equals via solver [2018-04-11 10:00:34,004 INFO L477 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 1 select indices, 1 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 12 treesize of output 15 [2018-04-11 10:00:34,004 INFO L267 ElimStorePlain]: Start of recursive call 2: End of recursive call: and 1 xjuncts. [2018-04-11 10:00:34,012 INFO L700 Elim1Store]: detected not equals via solver [2018-04-11 10:00:34,012 INFO L700 Elim1Store]: detected not equals via solver [2018-04-11 10:00:34,012 INFO L477 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 2 select indices, 2 select index equivalence classes, 2 disjoint index pairs (out of 1 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 17 treesize of output 21 [2018-04-11 10:00:34,013 INFO L267 ElimStorePlain]: Start of recursive call 3: End of recursive call: and 1 xjuncts. [2018-04-11 10:00:34,018 INFO L267 ElimStorePlain]: Start of recursive call 1: 1 dim-0 vars, 2 dim-1 vars, End of recursive call: and 1 xjuncts. [2018-04-11 10:00:34,018 INFO L202 ElimStorePlain]: Needed 3 recursive calls to eliminate 3 variables, input treesize:31, output treesize:23 [2018-04-11 10:00:34,130 INFO L700 Elim1Store]: detected not equals via solver [2018-04-11 10:00:34,131 INFO L477 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 1 select indices, 1 select index equivalence classes, 2 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 12 treesize of output 15 [2018-04-11 10:00:34,131 INFO L267 ElimStorePlain]: Start of recursive call 2: End of recursive call: and 1 xjuncts. [2018-04-11 10:00:34,143 INFO L700 Elim1Store]: detected not equals via solver [2018-04-11 10:00:34,143 INFO L700 Elim1Store]: detected not equals via solver [2018-04-11 10:00:34,144 INFO L700 Elim1Store]: detected not equals via solver [2018-04-11 10:00:34,145 INFO L477 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 3 select indices, 3 select index equivalence classes, 4 disjoint index pairs (out of 3 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 16 treesize of output 13 [2018-04-11 10:00:34,145 INFO L267 ElimStorePlain]: Start of recursive call 3: End of recursive call: and 1 xjuncts. [2018-04-11 10:00:34,152 INFO L267 ElimStorePlain]: Start of recursive call 1: 1 dim-0 vars, 2 dim-1 vars, End of recursive call: and 1 xjuncts. [2018-04-11 10:00:34,152 INFO L202 ElimStorePlain]: Needed 3 recursive calls to eliminate 3 variables, input treesize:34, output treesize:18 [2018-04-11 10:00:34,191 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 11 treesize of output 8 [2018-04-11 10:00:34,192 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 8 treesize of output 7 [2018-04-11 10:00:34,192 INFO L267 ElimStorePlain]: Start of recursive call 3: End of recursive call: and 1 xjuncts. [2018-04-11 10:00:34,194 INFO L267 ElimStorePlain]: Start of recursive call 2: 1 dim-1 vars, End of recursive call: and 1 xjuncts. [2018-04-11 10:00:34,200 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 11 treesize of output 8 [2018-04-11 10:00:34,201 INFO L477 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 8 treesize of output 7 [2018-04-11 10:00:34,201 INFO L267 ElimStorePlain]: Start of recursive call 5: End of recursive call: and 1 xjuncts. [2018-04-11 10:00:34,202 INFO L267 ElimStorePlain]: Start of recursive call 4: 1 dim-1 vars, End of recursive call: and 1 xjuncts. [2018-04-11 10:00:34,207 INFO L267 ElimStorePlain]: Start of recursive call 1: 1 dim-0 vars, 2 dim-2 vars, End of recursive call: and 1 xjuncts. [2018-04-11 10:00:34,207 INFO L202 ElimStorePlain]: Needed 5 recursive calls to eliminate 3 variables, input treesize:37, output treesize:30 [2018-04-11 10:00:34,275 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 25 treesize of output 19 [2018-04-11 10:00:34,276 INFO L477 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 1 select indices, 1 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 19 treesize of output 10 [2018-04-11 10:00:34,276 INFO L267 ElimStorePlain]: Start of recursive call 3: End of recursive call: and 1 xjuncts. [2018-04-11 10:00:34,278 INFO L267 ElimStorePlain]: Start of recursive call 2: 1 dim-1 vars, End of recursive call: and 1 xjuncts. [2018-04-11 10:00:34,283 INFO L477 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 0 stores, 1 select indices, 1 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 15 treesize of output 11 [2018-04-11 10:00:34,284 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 11 treesize of output 3 [2018-04-11 10:00:34,284 INFO L267 ElimStorePlain]: Start of recursive call 5: End of recursive call: and 1 xjuncts. [2018-04-11 10:00:34,285 INFO L267 ElimStorePlain]: Start of recursive call 4: 1 dim-1 vars, End of recursive call: and 1 xjuncts. [2018-04-11 10:00:34,288 INFO L267 ElimStorePlain]: Start of recursive call 1: 2 dim-0 vars, 2 dim-2 vars, End of recursive call: 1 dim-0 vars, and 1 xjuncts. [2018-04-11 10:00:34,288 INFO L202 ElimStorePlain]: Needed 5 recursive calls to eliminate 4 variables, input treesize:44, output treesize:18 [2018-04-11 10:00:35,025 INFO L134 CoverageAnalysis]: Checked inductivity of 114 backedges. 0 proven. 114 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-04-11 10:00:35,042 INFO L320 seRefinementStrategy]: Constructing automaton from 0 perfect and 2 imperfect interpolant sequences. [2018-04-11 10:00:35,042 INFO L335 seRefinementStrategy]: Number of different interpolants: perfect sequences [] imperfect sequences [30, 28] total 55 [2018-04-11 10:00:35,043 INFO L442 AbstractCegarLoop]: Interpolant automaton has 56 states [2018-04-11 10:00:35,043 INFO L132 InterpolantAutomaton]: Constructing interpolant automaton starting with 56 interpolants. [2018-04-11 10:00:35,043 INFO L133 InterpolantAutomaton]: CoverageRelationStatistics Valid=258, Invalid=2822, Unknown=0, NotChecked=0, Total=3080 [2018-04-11 10:00:35,043 INFO L87 Difference]: Start difference. First operand 69 states and 69 transitions. Second operand 56 states. [2018-04-11 10:00:38,078 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-04-11 10:00:38,078 INFO L93 Difference]: Finished difference Result 80 states and 80 transitions. [2018-04-11 10:00:38,078 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 49 states. [2018-04-11 10:00:38,078 INFO L78 Accepts]: Start accepts. Automaton has 56 states. Word has length 68 [2018-04-11 10:00:38,078 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-04-11 10:00:38,078 INFO L225 Difference]: With dead ends: 80 [2018-04-11 10:00:38,078 INFO L226 Difference]: Without dead ends: 0 [2018-04-11 10:00:38,080 INFO L567 BasicCegarLoop]: 0 DeclaredPredicates, 143 GetRequests, 42 SyntacticMatches, 2 SemanticMatches, 99 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 2641 ImplicationChecksByTransitivity, 3.8s TimeCoverageRelationStatistics Valid=1005, Invalid=9095, Unknown=0, NotChecked=0, Total=10100 [2018-04-11 10:00:38,080 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 0 states. [2018-04-11 10:00:38,080 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 0 to 0. [2018-04-11 10:00:38,080 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 0 states. [2018-04-11 10:00:38,080 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 0 states to 0 states and 0 transitions. [2018-04-11 10:00:38,080 INFO L78 Accepts]: Start accepts. Automaton has 0 states and 0 transitions. Word has length 68 [2018-04-11 10:00:38,080 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-04-11 10:00:38,080 INFO L459 AbstractCegarLoop]: Abstraction has 0 states and 0 transitions. [2018-04-11 10:00:38,080 INFO L460 AbstractCegarLoop]: Interpolant automaton has 56 states. [2018-04-11 10:00:38,080 INFO L276 IsEmpty]: Start isEmpty. Operand 0 states and 0 transitions. [2018-04-11 10:00:38,080 INFO L282 IsEmpty]: Finished isEmpty. No accepting run. [2018-04-11 10:00:38,083 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 11.04 10:00:38 BoogieIcfgContainer [2018-04-11 10:00:38,083 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2018-04-11 10:00:38,084 INFO L168 Benchmark]: Toolchain (without parser) took 38093.46 ms. Allocated memory was 401.1 MB in the beginning and 1.2 GB in the end (delta: 806.4 MB). Free memory was 335.4 MB in the beginning and 1.0 GB in the end (delta: -702.1 MB). Peak memory consumption was 104.3 MB. Max. memory is 5.3 GB. [2018-04-11 10:00:38,084 INFO L168 Benchmark]: CDTParser took 0.14 ms. Allocated memory is still 401.1 MB. Free memory is still 361.3 MB. There was no memory consumed. Max. memory is 5.3 GB. [2018-04-11 10:00:38,085 INFO L168 Benchmark]: CACSL2BoogieTranslator took 294.19 ms. Allocated memory is still 401.1 MB. Free memory was 334.1 MB in the beginning and 308.4 MB in the end (delta: 25.8 MB). Peak memory consumption was 25.8 MB. Max. memory is 5.3 GB. [2018-04-11 10:00:38,085 INFO L168 Benchmark]: Boogie Preprocessor took 45.80 ms. Allocated memory is still 401.1 MB. Free memory was 308.4 MB in the beginning and 305.7 MB in the end (delta: 2.6 MB). Peak memory consumption was 2.6 MB. Max. memory is 5.3 GB. [2018-04-11 10:00:38,085 INFO L168 Benchmark]: RCFGBuilder took 429.08 ms. Allocated memory was 401.1 MB in the beginning and 615.0 MB in the end (delta: 213.9 MB). Free memory was 305.7 MB in the beginning and 545.3 MB in the end (delta: -239.6 MB). Peak memory consumption was 24.4 MB. Max. memory is 5.3 GB. [2018-04-11 10:00:38,085 INFO L168 Benchmark]: TraceAbstraction took 37321.89 ms. Allocated memory was 615.0 MB in the beginning and 1.2 GB in the end (delta: 592.4 MB). Free memory was 545.3 MB in the beginning and 1.0 GB in the end (delta: -492.2 MB). Peak memory consumption was 100.2 MB. Max. memory is 5.3 GB. [2018-04-11 10:00:38,086 INFO L344 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.14 ms. Allocated memory is still 401.1 MB. Free memory is still 361.3 MB. There was no memory consumed. Max. memory is 5.3 GB. * CACSL2BoogieTranslator took 294.19 ms. Allocated memory is still 401.1 MB. Free memory was 334.1 MB in the beginning and 308.4 MB in the end (delta: 25.8 MB). Peak memory consumption was 25.8 MB. Max. memory is 5.3 GB. * Boogie Preprocessor took 45.80 ms. Allocated memory is still 401.1 MB. Free memory was 308.4 MB in the beginning and 305.7 MB in the end (delta: 2.6 MB). Peak memory consumption was 2.6 MB. Max. memory is 5.3 GB. * RCFGBuilder took 429.08 ms. Allocated memory was 401.1 MB in the beginning and 615.0 MB in the end (delta: 213.9 MB). Free memory was 305.7 MB in the beginning and 545.3 MB in the end (delta: -239.6 MB). Peak memory consumption was 24.4 MB. Max. memory is 5.3 GB. * TraceAbstraction took 37321.89 ms. Allocated memory was 615.0 MB in the beginning and 1.2 GB in the end (delta: 592.4 MB). Free memory was 545.3 MB in the beginning and 1.0 GB in the end (delta: -492.2 MB). Peak memory consumption was 100.2 MB. Max. memory is 5.3 GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - PositiveResult [Line: 569]: pointer dereference always succeeds For all program executions holds that pointer dereference always succeeds at this location - PositiveResult [Line: 558]: all allocated memory was freed For all program executions holds that all allocated memory was freed at this location - PositiveResult [Line: 569]: pointer dereference always succeeds For all program executions holds that pointer dereference always succeeds at this location - PositiveResult [Line: 544]: pointer dereference always succeeds For all program executions holds that pointer dereference always succeeds at this location - PositiveResult [Line: 549]: pointer dereference always succeeds For all program executions holds that pointer dereference always succeeds at this location - PositiveResult [Line: 556]: pointer dereference always succeeds For all program executions holds that pointer dereference always succeeds at this location - PositiveResult [Line: 544]: pointer dereference always succeeds For all program executions holds that pointer dereference always succeeds at this location - PositiveResult [Line: 546]: pointer dereference always succeeds For all program executions holds that pointer dereference always succeeds at this location - PositiveResult [Line: 549]: pointer dereference always succeeds For all program executions holds that pointer dereference always succeeds at this location - PositiveResult [Line: 548]: pointer dereference always succeeds For all program executions holds that pointer dereference always succeeds at this location - PositiveResult [Line: 540]: pointer dereference always succeeds For all program executions holds that pointer dereference always succeeds at this location - PositiveResult [Line: 540]: pointer dereference always succeeds For all program executions holds that pointer dereference always succeeds at this location - PositiveResult [Line: 548]: pointer dereference always succeeds For all program executions holds that pointer dereference always succeeds at this location - PositiveResult [Line: 548]: pointer dereference always succeeds For all program executions holds that pointer dereference always succeeds at this location - PositiveResult [Line: 551]: pointer dereference always succeeds For all program executions holds that pointer dereference always succeeds at this location - PositiveResult [Line: 546]: pointer dereference always succeeds For all program executions holds that pointer dereference always succeeds at this location - PositiveResult [Line: 546]: pointer dereference always succeeds For all program executions holds that pointer dereference always succeeds at this location - PositiveResult [Line: 548]: pointer dereference always succeeds For all program executions holds that pointer dereference always succeeds at this location - PositiveResult [Line: 556]: pointer dereference always succeeds For all program executions holds that pointer dereference always succeeds at this location - PositiveResult [Line: 546]: pointer dereference always succeeds For all program executions holds that pointer dereference always succeeds at this location - PositiveResult [Line: 551]: pointer dereference always succeeds For all program executions holds that pointer dereference always succeeds at this location - AllSpecificationsHoldResult: All specifications hold 21 specifications checked. All of them hold - StatisticsResult: Ultimate Automizer benchmark data CFG has 6 procedures, 77 locations, 21 error locations. SAFE Result, 37.2s OverallTime, 25 OverallIterations, 7 TraceHistogramMax, 21.9s AutomataDifference, 0.0s DeadEndRemovalTime, 0.0s HoareAnnotationTime, HoareTripleCheckerStatistics: 1047 SDtfs, 2182 SDslu, 9581 SDs, 0 SdLazy, 11350 SolverSat, 699 SolverUnsat, 0 SolverUnknown, 0 SolverNotchecked, 6.0s Time, PredicateUnifierStatistics: 0 DeclaredPredicates, 1016 GetRequests, 247 SyntacticMatches, 19 SemanticMatches, 750 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 10819 ImplicationChecksByTransitivity, 25.3s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=169occurred in iteration=18, traceCheckStatistics: No data available, InterpolantConsolidationStatistics: No data available, PathInvariantsStatistics: No data available, 0/0 InterpolantCoveringCapability, TotalInterpolationStatistics: No data available, 0.0s AbstIntTime, 0 AbstIntIterations, 0 AbstIntStrong, NaN AbsIntWeakeningRatio, NaN AbsIntAvgWeakeningVarsNumRemoved, NaN AbsIntAvgWeakenedConjuncts, 0.0s DumpTime, AutomataMinimizationStatistics: 0.0s AutomataMinimizationTime, 25 MinimizatonAttempts, 263 StatesRemovedByMinimization, 18 NontrivialMinimizations, HoareAnnotationStatistics: No data available, RefinementEngineStatistics: TraceCheckStatistics: 0.1s SsaConstructionTime, 0.6s SatisfiabilityAnalysisTime, 13.9s InterpolantComputationTime, 1195 NumberOfCodeBlocks, 1195 NumberOfCodeBlocksAsserted, 43 NumberOfCheckSat, 1161 ConstructedInterpolants, 241 QuantifiedInterpolants, 845539 SizeOfPredicates, 178 NumberOfNonLiveVariables, 2231 ConjunctsInSsa, 665 ConjunctsInUnsatCore, 34 InterpolantComputations, 16 PerfectInterpolantSequences, 120/478 InterpolantCoveringCapability, InvariantSynthesisStatistics: No data available, InterpolantConsolidationStatistics: No data available, ReuseStatistics: No data available RESULT: Ultimate proved your program to be correct! Written .csv to /home/ultimate/work/ultimate/releaseScripts/default/UAutomizer-linux/../../../releaseScripts/default/UAutomizer-linux/csv/openbsd_cstpncpy-alloca_true-valid-memsafety_true-termination.i_svcomp-DerefFreeMemtrack-32bit-Automizer_Camel.epf_AutomizerC.xml/Csv-Benchmark-0-2018-04-11_10-00-38-091.csv Written .csv to /home/ultimate/work/ultimate/releaseScripts/default/UAutomizer-linux/../../../releaseScripts/default/UAutomizer-linux/csv/openbsd_cstpncpy-alloca_true-valid-memsafety_true-termination.i_svcomp-DerefFreeMemtrack-32bit-Automizer_Camel.epf_AutomizerC.xml/Csv-TraceAbstractionBenchmarks-0-2018-04-11_10-00-38-091.csv Received shutdown request...