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 0.1.23-408c70d-m [2018-04-12 10:21:00,130 INFO L170 SettingsManager]: Resetting all preferences to default values... [2018-04-12 10:21:00,131 INFO L174 SettingsManager]: Resetting UltimateCore preferences to default values [2018-04-12 10:21:00,145 INFO L177 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2018-04-12 10:21:00,146 INFO L174 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2018-04-12 10:21:00,146 INFO L174 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2018-04-12 10:21:00,147 INFO L174 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2018-04-12 10:21:00,150 INFO L174 SettingsManager]: Resetting LassoRanker preferences to default values [2018-04-12 10:21:00,152 INFO L174 SettingsManager]: Resetting Reaching Definitions preferences to default values [2018-04-12 10:21:00,152 INFO L174 SettingsManager]: Resetting SyntaxChecker preferences to default values [2018-04-12 10:21:00,153 INFO L177 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2018-04-12 10:21:00,153 INFO L174 SettingsManager]: Resetting LTL2Aut preferences to default values [2018-04-12 10:21:00,154 INFO L174 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2018-04-12 10:21:00,155 INFO L174 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2018-04-12 10:21:00,156 INFO L174 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2018-04-12 10:21:00,158 INFO L174 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2018-04-12 10:21:00,159 INFO L174 SettingsManager]: Resetting CodeCheck preferences to default values [2018-04-12 10:21:00,161 INFO L174 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2018-04-12 10:21:00,161 INFO L174 SettingsManager]: Resetting RCFGBuilder preferences to default values [2018-04-12 10:21:00,162 INFO L174 SettingsManager]: Resetting TraceAbstraction preferences to default values [2018-04-12 10:21:00,164 INFO L177 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... 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[2018-04-12 10:21:00,169 INFO L174 SettingsManager]: Resetting Witness Parser preferences to default values [2018-04-12 10:21:00,169 INFO L181 SettingsManager]: Finished resetting all preferences to default values... [2018-04-12 10:21:00,170 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 [2018-04-12 10:21:00,180 INFO L110 SettingsManager]: Loading preferences was successful [2018-04-12 10:21:00,181 INFO L112 SettingsManager]: Preferences different from defaults after loading the file: [2018-04-12 10:21:00,182 INFO L131 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2018-04-12 10:21:00,182 INFO L133 SettingsManager]: * Create parallel compositions if possible=false [2018-04-12 10:21:00,182 INFO L133 SettingsManager]: * Use SBE=true [2018-04-12 10:21:00,182 INFO L131 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2018-04-12 10:21:00,182 INFO L133 SettingsManager]: * sizeof long=4 [2018-04-12 10:21:00,183 INFO L133 SettingsManager]: * Check unreachability of error function in SV-COMP mode=false [2018-04-12 10:21:00,183 INFO L133 SettingsManager]: * Overapproximate operations on floating types=true [2018-04-12 10:21:00,183 INFO L133 SettingsManager]: * sizeof POINTER=4 [2018-04-12 10:21:00,183 INFO L133 SettingsManager]: * Check division by zero=IGNORE [2018-04-12 10:21:00,183 INFO L133 SettingsManager]: * Check for the main procedure if all allocated memory was freed=true [2018-04-12 10:21:00,183 INFO L133 SettingsManager]: * Bitprecise bitfields=true [2018-04-12 10:21:00,183 INFO L133 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2018-04-12 10:21:00,183 INFO L133 SettingsManager]: * sizeof long double=12 [2018-04-12 10:21:00,184 INFO L131 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2018-04-12 10:21:00,184 INFO L133 SettingsManager]: * Size of a code block=SequenceOfStatements [2018-04-12 10:21:00,184 INFO L133 SettingsManager]: * To the following directory=./dump/ [2018-04-12 10:21:00,184 INFO L133 SettingsManager]: * SMT solver=External_DefaultMode [2018-04-12 10:21:00,184 INFO L133 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2018-04-12 10:21:00,185 INFO L131 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2018-04-12 10:21:00,185 INFO L133 SettingsManager]: * Interpolant automaton=TWOTRACK [2018-04-12 10:21:00,185 INFO L133 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2018-04-12 10:21:00,185 INFO L133 SettingsManager]: * Trace refinement strategy=CAMEL Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Bitprecise bitfields -> false [2018-04-12 10:21:00,216 INFO L81 nceAwareModelManager]: Repository-Root is: /tmp [2018-04-12 10:21:00,226 INFO L266 ainManager$Toolchain]: [Toolchain 1]: Parser(s) successfully (re)initialized [2018-04-12 10:21:00,229 INFO L222 ainManager$Toolchain]: [Toolchain 1]: Toolchain data selected. [2018-04-12 10:21:00,230 INFO L271 PluginConnector]: Initializing CDTParser... [2018-04-12 10:21:00,231 INFO L276 PluginConnector]: CDTParser initialized [2018-04-12 10:21:00,231 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 [2018-04-12 10:21:00,510 INFO L225 CDTParser]: Created temporary CDT project at /home/ultimate/work/ultimate/releaseScripts/default/UAutomizer-linux/data/FLAG431c13694 [2018-04-12 10:21:00,655 INFO L287 CDTParser]: IsIndexed: true [2018-04-12 10:21:00,655 INFO L288 CDTParser]: Found 1 translation units. [2018-04-12 10:21:00,655 INFO L168 CDTParser]: Scanning openbsd_cstpncpy-alloca_true-valid-memsafety_true-termination.i [2018-04-12 10:21:00,663 INFO L210 ultiparseSymbolTable]: Include resolver: [2018-04-12 10:21:00,663 INFO L215 ultiparseSymbolTable]: [2018-04-12 10:21:00,663 INFO L218 ultiparseSymbolTable]: Function table: [2018-04-12 10:21:00,663 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 [2018-04-12 10:21:00,663 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 [2018-04-12 10:21:00,663 INFO L221 ultiparseSymbolTable]: Function definition of null ('main') in openbsd_cstpncpy-alloca_true-valid-memsafety_true-termination.i [2018-04-12 10:21:00,664 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 [2018-04-12 10:21:00,664 INFO L227 ultiparseSymbolTable]: Global variable table: [2018-04-12 10:21:00,664 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 [2018-04-12 10:21:00,664 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 [2018-04-12 10:21:00,664 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 [2018-04-12 10:21:00,664 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 [2018-04-12 10:21:00,664 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 [2018-04-12 10:21:00,664 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 [2018-04-12 10:21:00,664 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 [2018-04-12 10:21:00,664 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 [2018-04-12 10:21:00,664 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 [2018-04-12 10:21:00,665 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 [2018-04-12 10:21:00,665 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 [2018-04-12 10:21:00,665 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 [2018-04-12 10:21:00,665 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 [2018-04-12 10:21:00,665 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 [2018-04-12 10:21:00,665 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 [2018-04-12 10:21:00,665 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 [2018-04-12 10:21:00,665 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 [2018-04-12 10:21:00,665 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 [2018-04-12 10:21:00,665 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 [2018-04-12 10:21:00,665 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 [2018-04-12 10:21:00,666 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 [2018-04-12 10:21:00,666 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 [2018-04-12 10:21:00,666 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 [2018-04-12 10:21:00,666 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 [2018-04-12 10:21:00,666 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 [2018-04-12 10:21:00,666 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 [2018-04-12 10:21:00,666 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 [2018-04-12 10:21:00,666 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 [2018-04-12 10:21:00,666 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 [2018-04-12 10:21:00,666 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 [2018-04-12 10:21:00,667 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 [2018-04-12 10:21:00,667 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 [2018-04-12 10:21:00,667 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 [2018-04-12 10:21:00,667 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 [2018-04-12 10:21:00,667 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 [2018-04-12 10:21:00,667 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 [2018-04-12 10:21:00,667 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 [2018-04-12 10:21:00,667 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 [2018-04-12 10:21:00,667 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 [2018-04-12 10:21:00,667 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 [2018-04-12 10:21:00,667 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 [2018-04-12 10:21:00,668 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 [2018-04-12 10:21:00,668 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 [2018-04-12 10:21:00,668 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 [2018-04-12 10:21:00,668 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 [2018-04-12 10:21:00,668 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 [2018-04-12 10:21:00,668 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 [2018-04-12 10:21:00,668 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 [2018-04-12 10:21:00,668 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 [2018-04-12 10:21:00,668 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 [2018-04-12 10:21:00,668 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 [2018-04-12 10:21:00,668 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 [2018-04-12 10:21:00,668 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 [2018-04-12 10:21:00,668 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 [2018-04-12 10:21:00,668 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 [2018-04-12 10:21:00,668 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 [2018-04-12 10:21:00,668 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 [2018-04-12 10:21:00,669 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 [2018-04-12 10:21:00,669 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 [2018-04-12 10:21:00,669 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 [2018-04-12 10:21:00,669 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 [2018-04-12 10:21:00,669 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 [2018-04-12 10:21:00,669 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 [2018-04-12 10:21:00,669 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 [2018-04-12 10:21:00,669 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 [2018-04-12 10:21:00,669 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 [2018-04-12 10:21:00,669 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 [2018-04-12 10:21:00,669 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 [2018-04-12 10:21:00,669 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 [2018-04-12 10:21:00,669 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 [2018-04-12 10:21:00,669 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 [2018-04-12 10:21:00,669 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 [2018-04-12 10:21:00,669 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 [2018-04-12 10:21:00,669 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 [2018-04-12 10:21:00,669 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 [2018-04-12 10:21:00,669 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 [2018-04-12 10:21:00,670 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 [2018-04-12 10:21:00,670 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 [2018-04-12 10:21:00,670 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 [2018-04-12 10:21:00,670 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 [2018-04-12 10:21:00,670 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 [2018-04-12 10:21:00,670 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 [2018-04-12 10:21:00,670 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 [2018-04-12 10:21:00,670 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 [2018-04-12 10:21:00,670 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 [2018-04-12 10:21:00,670 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 [2018-04-12 10:21:00,670 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 [2018-04-12 10:21:00,670 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 [2018-04-12 10:21:00,671 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 [2018-04-12 10:21:00,671 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 [2018-04-12 10:21:00,671 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 [2018-04-12 10:21:00,671 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 [2018-04-12 10:21:00,671 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 [2018-04-12 10:21:00,671 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 [2018-04-12 10:21:00,671 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 [2018-04-12 10:21:00,671 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 [2018-04-12 10:21:00,671 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 [2018-04-12 10:21:00,671 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 [2018-04-12 10:21:00,671 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 [2018-04-12 10:21:00,672 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 [2018-04-12 10:21:00,672 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 [2018-04-12 10:21:00,672 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 [2018-04-12 10:21:00,672 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 [2018-04-12 10:21:00,672 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 [2018-04-12 10:21:00,672 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 [2018-04-12 10:21:00,672 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 [2018-04-12 10:21:00,672 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 [2018-04-12 10:21:00,672 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 [2018-04-12 10:21:00,672 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 [2018-04-12 10:21:00,672 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 [2018-04-12 10:21:00,673 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 [2018-04-12 10:21:00,673 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 [2018-04-12 10:21:00,673 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 [2018-04-12 10:21:00,673 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 [2018-04-12 10:21:00,673 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 [2018-04-12 10:21:00,673 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 [2018-04-12 10:21:00,673 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 [2018-04-12 10:21:00,673 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 [2018-04-12 10:21:00,674 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 [2018-04-12 10:21:00,674 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 [2018-04-12 10:21:00,687 INFO L330 CDTParser]: Deleted temporary CDT project at /home/ultimate/work/ultimate/releaseScripts/default/UAutomizer-linux/data/FLAG431c13694 [2018-04-12 10:21:00,691 INFO L304 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2018-04-12 10:21:00,691 INFO L131 ToolchainWalker]: Walking toolchain with 4 elements. [2018-04-12 10:21:00,692 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2018-04-12 10:21:00,692 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2018-04-12 10:21:00,696 INFO L276 PluginConnector]: CACSL2BoogieTranslator initialized [2018-04-12 10:21:00,696 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 12.04 10:21:00" (1/1) ... [2018-04-12 10:21:00,698 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@35e85a27 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.04 10:21:00, skipping insertion in model container [2018-04-12 10:21:00,698 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 12.04 10:21:00" (1/1) ... [2018-04-12 10:21:00,713 INFO L167 Dispatcher]: Using SV-COMP mode [2018-04-12 10:21:00,736 INFO L167 Dispatcher]: Using SV-COMP mode [2018-04-12 10:21:00,869 INFO L175 PostProcessor]: Settings: Checked method=main [2018-04-12 10:21:00,908 INFO L175 PostProcessor]: Settings: Checked method=main [2018-04-12 10:21:00,914 INFO L100 SccComputation]: Graph consists of 0 InCaSumBalls and 114 non ball SCCs. Number of states in SCCs 114. [2018-04-12 10:21:00,955 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.04 10:21:00 WrapperNode [2018-04-12 10:21:00,955 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2018-04-12 10:21:00,956 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2018-04-12 10:21:00,956 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2018-04-12 10:21:00,956 INFO L276 PluginConnector]: Boogie Preprocessor initialized [2018-04-12 10:21:00,965 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.04 10:21:00" (1/1) ... [2018-04-12 10:21:00,965 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.04 10:21:00" (1/1) ... [2018-04-12 10:21:00,977 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.04 10:21:00" (1/1) ... [2018-04-12 10:21:00,977 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.04 10:21:00" (1/1) ... [2018-04-12 10:21:00,985 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.04 10:21:00" (1/1) ... [2018-04-12 10:21:00,990 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.04 10:21:00" (1/1) ... [2018-04-12 10:21:00,992 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.04 10:21:00" (1/1) ... [2018-04-12 10:21:00,996 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2018-04-12 10:21:00,996 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2018-04-12 10:21:00,997 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2018-04-12 10:21:00,997 INFO L276 PluginConnector]: RCFGBuilder initialized [2018-04-12 10:21:00,997 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.04 10:21:00" (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 [2018-04-12 10:21:01,083 INFO L136 BoogieDeclarations]: Found implementation of procedure ULTIMATE.init [2018-04-12 10:21:01,084 INFO L136 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2018-04-12 10:21:01,084 INFO L136 BoogieDeclarations]: Found implementation of procedure __U_MULTI_fopenbsd_cstpncpy_alloca_true_valid_memsafety_true_termination_i____bswap_32 [2018-04-12 10:21:01,084 INFO L136 BoogieDeclarations]: Found implementation of procedure __U_MULTI_fopenbsd_cstpncpy_alloca_true_valid_memsafety_true_termination_i____bswap_64 [2018-04-12 10:21:01,084 INFO L136 BoogieDeclarations]: Found implementation of procedure __U_MULTI_fopenbsd_cstpncpy_alloca_true_valid_memsafety_true_termination_i__cstpncpy [2018-04-12 10:21:01,084 INFO L136 BoogieDeclarations]: Found implementation of procedure main [2018-04-12 10:21:01,084 INFO L128 BoogieDeclarations]: Found specification of procedure __U_MULTI_fopenbsd_cstpncpy_alloca_true_valid_memsafety_true_termination_i____bswap_32 [2018-04-12 10:21:01,084 INFO L128 BoogieDeclarations]: Found specification of procedure __U_MULTI_fopenbsd_cstpncpy_alloca_true_valid_memsafety_true_termination_i____bswap_64 [2018-04-12 10:21:01,084 INFO L128 BoogieDeclarations]: Found specification of procedure __ctype_get_mb_cur_max [2018-04-12 10:21:01,084 INFO L128 BoogieDeclarations]: Found specification of procedure atof [2018-04-12 10:21:01,084 INFO L128 BoogieDeclarations]: Found specification of procedure atoi [2018-04-12 10:21:01,084 INFO L128 BoogieDeclarations]: Found specification of procedure atol [2018-04-12 10:21:01,085 INFO L128 BoogieDeclarations]: Found specification of procedure atoll [2018-04-12 10:21:01,085 INFO L128 BoogieDeclarations]: Found specification of procedure strtod [2018-04-12 10:21:01,085 INFO L128 BoogieDeclarations]: Found specification of procedure strtof [2018-04-12 10:21:01,085 INFO L128 BoogieDeclarations]: Found specification of procedure strtold [2018-04-12 10:21:01,085 INFO L128 BoogieDeclarations]: Found specification of procedure strtol [2018-04-12 10:21:01,085 INFO L128 BoogieDeclarations]: Found specification of procedure strtoul [2018-04-12 10:21:01,085 INFO L128 BoogieDeclarations]: Found specification of procedure strtoq [2018-04-12 10:21:01,085 INFO L128 BoogieDeclarations]: Found specification of procedure strtouq [2018-04-12 10:21:01,085 INFO L128 BoogieDeclarations]: Found specification of procedure strtoll [2018-04-12 10:21:01,086 INFO L128 BoogieDeclarations]: Found specification of procedure strtoull [2018-04-12 10:21:01,086 INFO L128 BoogieDeclarations]: Found specification of procedure l64a [2018-04-12 10:21:01,086 INFO L128 BoogieDeclarations]: Found specification of procedure a64l [2018-04-12 10:21:01,086 INFO L128 BoogieDeclarations]: Found specification of procedure select [2018-04-12 10:21:01,086 INFO L128 BoogieDeclarations]: Found specification of procedure pselect [2018-04-12 10:21:01,086 INFO L128 BoogieDeclarations]: Found specification of procedure gnu_dev_major [2018-04-12 10:21:01,086 INFO L128 BoogieDeclarations]: Found specification of procedure gnu_dev_minor [2018-04-12 10:21:01,086 INFO L128 BoogieDeclarations]: Found specification of procedure gnu_dev_makedev [2018-04-12 10:21:01,086 INFO L128 BoogieDeclarations]: Found specification of procedure random [2018-04-12 10:21:01,086 INFO L128 BoogieDeclarations]: Found specification of procedure srandom [2018-04-12 10:21:01,086 INFO L128 BoogieDeclarations]: Found specification of procedure initstate [2018-04-12 10:21:01,087 INFO L128 BoogieDeclarations]: Found specification of procedure setstate [2018-04-12 10:21:01,087 INFO L128 BoogieDeclarations]: Found specification of procedure random_r [2018-04-12 10:21:01,087 INFO L128 BoogieDeclarations]: Found specification of procedure srandom_r [2018-04-12 10:21:01,087 INFO L128 BoogieDeclarations]: Found specification of procedure initstate_r [2018-04-12 10:21:01,087 INFO L128 BoogieDeclarations]: Found specification of procedure setstate_r [2018-04-12 10:21:01,087 INFO L128 BoogieDeclarations]: Found specification of procedure rand [2018-04-12 10:21:01,087 INFO L128 BoogieDeclarations]: Found specification of procedure srand [2018-04-12 10:21:01,087 INFO L128 BoogieDeclarations]: Found specification of procedure rand_r [2018-04-12 10:21:01,087 INFO L128 BoogieDeclarations]: Found specification of procedure drand48 [2018-04-12 10:21:01,088 INFO L128 BoogieDeclarations]: Found specification of procedure erand48 [2018-04-12 10:21:01,088 INFO L128 BoogieDeclarations]: Found specification of procedure lrand48 [2018-04-12 10:21:01,088 INFO L128 BoogieDeclarations]: Found specification of procedure nrand48 [2018-04-12 10:21:01,088 INFO L128 BoogieDeclarations]: Found specification of procedure mrand48 [2018-04-12 10:21:01,088 INFO L128 BoogieDeclarations]: Found specification of procedure jrand48 [2018-04-12 10:21:01,088 INFO L128 BoogieDeclarations]: Found specification of procedure srand48 [2018-04-12 10:21:01,088 INFO L128 BoogieDeclarations]: Found specification of procedure seed48 [2018-04-12 10:21:01,088 INFO L128 BoogieDeclarations]: Found specification of procedure lcong48 [2018-04-12 10:21:01,088 INFO L128 BoogieDeclarations]: Found specification of procedure drand48_r [2018-04-12 10:21:01,088 INFO L128 BoogieDeclarations]: Found specification of procedure erand48_r [2018-04-12 10:21:01,088 INFO L128 BoogieDeclarations]: Found specification of procedure lrand48_r [2018-04-12 10:21:01,089 INFO L128 BoogieDeclarations]: Found specification of procedure nrand48_r [2018-04-12 10:21:01,089 INFO L128 BoogieDeclarations]: Found specification of procedure mrand48_r [2018-04-12 10:21:01,089 INFO L128 BoogieDeclarations]: Found specification of procedure jrand48_r [2018-04-12 10:21:01,089 INFO L128 BoogieDeclarations]: Found specification of procedure srand48_r [2018-04-12 10:21:01,089 INFO L128 BoogieDeclarations]: Found specification of procedure seed48_r [2018-04-12 10:21:01,089 INFO L128 BoogieDeclarations]: Found specification of procedure lcong48_r [2018-04-12 10:21:01,089 INFO L128 BoogieDeclarations]: Found specification of procedure malloc [2018-04-12 10:21:01,089 INFO L128 BoogieDeclarations]: Found specification of procedure calloc [2018-04-12 10:21:01,089 INFO L128 BoogieDeclarations]: Found specification of procedure realloc [2018-04-12 10:21:01,089 INFO L128 BoogieDeclarations]: Found specification of procedure free [2018-04-12 10:21:01,089 INFO L128 BoogieDeclarations]: Found specification of procedure cfree [2018-04-12 10:21:01,089 INFO L128 BoogieDeclarations]: Found specification of procedure alloca [2018-04-12 10:21:01,089 INFO L128 BoogieDeclarations]: Found specification of procedure valloc [2018-04-12 10:21:01,090 INFO L128 BoogieDeclarations]: Found specification of procedure posix_memalign [2018-04-12 10:21:01,090 INFO L128 BoogieDeclarations]: Found specification of procedure abort [2018-04-12 10:21:01,090 INFO L128 BoogieDeclarations]: Found specification of procedure atexit [2018-04-12 10:21:01,090 INFO L128 BoogieDeclarations]: Found specification of procedure on_exit [2018-04-12 10:21:01,090 INFO L128 BoogieDeclarations]: Found specification of procedure exit [2018-04-12 10:21:01,090 INFO L128 BoogieDeclarations]: Found specification of procedure _Exit [2018-04-12 10:21:01,090 INFO L128 BoogieDeclarations]: Found specification of procedure getenv [2018-04-12 10:21:01,090 INFO L128 BoogieDeclarations]: Found specification of procedure putenv [2018-04-12 10:21:01,090 INFO L128 BoogieDeclarations]: Found specification of procedure setenv [2018-04-12 10:21:01,090 INFO L128 BoogieDeclarations]: Found specification of procedure unsetenv [2018-04-12 10:21:01,091 INFO L128 BoogieDeclarations]: Found specification of procedure clearenv [2018-04-12 10:21:01,091 INFO L128 BoogieDeclarations]: Found specification of procedure mktemp [2018-04-12 10:21:01,091 INFO L128 BoogieDeclarations]: Found specification of procedure mkstemp [2018-04-12 10:21:01,091 INFO L128 BoogieDeclarations]: Found specification of procedure mkstemps [2018-04-12 10:21:01,091 INFO L128 BoogieDeclarations]: Found specification of procedure mkdtemp [2018-04-12 10:21:01,091 INFO L128 BoogieDeclarations]: Found specification of procedure system [2018-04-12 10:21:01,091 INFO L128 BoogieDeclarations]: Found specification of procedure realpath [2018-04-12 10:21:01,091 INFO L128 BoogieDeclarations]: Found specification of procedure bsearch [2018-04-12 10:21:01,091 INFO L128 BoogieDeclarations]: Found specification of procedure qsort [2018-04-12 10:21:01,091 INFO L128 BoogieDeclarations]: Found specification of procedure abs [2018-04-12 10:21:01,091 INFO L128 BoogieDeclarations]: Found specification of procedure labs [2018-04-12 10:21:01,091 INFO L128 BoogieDeclarations]: Found specification of procedure llabs [2018-04-12 10:21:01,091 INFO L128 BoogieDeclarations]: Found specification of procedure div [2018-04-12 10:21:01,091 INFO L128 BoogieDeclarations]: Found specification of procedure ldiv [2018-04-12 10:21:01,092 INFO L128 BoogieDeclarations]: Found specification of procedure lldiv [2018-04-12 10:21:01,092 INFO L128 BoogieDeclarations]: Found specification of procedure ecvt [2018-04-12 10:21:01,092 INFO L128 BoogieDeclarations]: Found specification of procedure fcvt [2018-04-12 10:21:01,092 INFO L128 BoogieDeclarations]: Found specification of procedure gcvt [2018-04-12 10:21:01,092 INFO L128 BoogieDeclarations]: Found specification of procedure qecvt [2018-04-12 10:21:01,092 INFO L128 BoogieDeclarations]: Found specification of procedure qfcvt [2018-04-12 10:21:01,092 INFO L128 BoogieDeclarations]: Found specification of procedure qgcvt [2018-04-12 10:21:01,092 INFO L128 BoogieDeclarations]: Found specification of procedure ecvt_r [2018-04-12 10:21:01,092 INFO L128 BoogieDeclarations]: Found specification of procedure fcvt_r [2018-04-12 10:21:01,092 INFO L128 BoogieDeclarations]: Found specification of procedure qecvt_r [2018-04-12 10:21:01,092 INFO L128 BoogieDeclarations]: Found specification of procedure qfcvt_r [2018-04-12 10:21:01,093 INFO L128 BoogieDeclarations]: Found specification of procedure mblen [2018-04-12 10:21:01,093 INFO L128 BoogieDeclarations]: Found specification of procedure mbtowc [2018-04-12 10:21:01,093 INFO L128 BoogieDeclarations]: Found specification of procedure wctomb [2018-04-12 10:21:01,093 INFO L128 BoogieDeclarations]: Found specification of procedure mbstowcs [2018-04-12 10:21:01,093 INFO L128 BoogieDeclarations]: Found specification of procedure wcstombs [2018-04-12 10:21:01,093 INFO L128 BoogieDeclarations]: Found specification of procedure rpmatch [2018-04-12 10:21:01,093 INFO L128 BoogieDeclarations]: Found specification of procedure getsubopt [2018-04-12 10:21:01,093 INFO L128 BoogieDeclarations]: Found specification of procedure getloadavg [2018-04-12 10:21:01,093 INFO L128 BoogieDeclarations]: Found specification of procedure __VERIFIER_nondet_int [2018-04-12 10:21:01,093 INFO L128 BoogieDeclarations]: Found specification of procedure __U_MULTI_fopenbsd_cstpncpy_alloca_true_valid_memsafety_true_termination_i__cstpncpy [2018-04-12 10:21:01,093 INFO L128 BoogieDeclarations]: Found specification of procedure #Ultimate.alloc [2018-04-12 10:21:01,094 INFO L128 BoogieDeclarations]: Found specification of procedure write~$Pointer$ [2018-04-12 10:21:01,094 INFO L128 BoogieDeclarations]: Found specification of procedure read~$Pointer$ [2018-04-12 10:21:01,094 INFO L128 BoogieDeclarations]: Found specification of procedure read~int [2018-04-12 10:21:01,094 INFO L128 BoogieDeclarations]: Found specification of procedure write~int [2018-04-12 10:21:01,094 INFO L128 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2018-04-12 10:21:01,094 INFO L128 BoogieDeclarations]: Found specification of procedure main [2018-04-12 10:21:01,094 INFO L128 BoogieDeclarations]: Found specification of procedure ULTIMATE.init [2018-04-12 10:21:01,094 INFO L128 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2018-04-12 10:21:01,094 INFO L128 BoogieDeclarations]: Found specification of procedure write~unchecked~int [2018-04-12 10:21:01,443 INFO L259 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2018-04-12 10:21:01,443 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 12.04 10:21:01 BoogieIcfgContainer [2018-04-12 10:21:01,443 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2018-04-12 10:21:01,444 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2018-04-12 10:21:01,444 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2018-04-12 10:21:01,445 INFO L276 PluginConnector]: TraceAbstraction initialized [2018-04-12 10:21:01,446 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 12.04 10:21:00" (1/3) ... [2018-04-12 10:21:01,446 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@4053bb93 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 12.04 10:21:01, skipping insertion in model container [2018-04-12 10:21:01,446 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.04 10:21:00" (2/3) ... [2018-04-12 10:21:01,446 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@4053bb93 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 12.04 10:21:01, skipping insertion in model container [2018-04-12 10:21:01,446 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 12.04 10:21:01" (3/3) ... [2018-04-12 10:21:01,447 INFO L107 eAbstractionObserver]: Analyzing ICFG openbsd_cstpncpy-alloca_true-valid-memsafety_true-termination.i [2018-04-12 10:21:01,454 INFO L131 ceAbstractionStarter]: Automizer settings: Hoare:false NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2018-04-12 10:21:01,460 INFO L143 ceAbstractionStarter]: Appying trace abstraction to program that has 21 error locations. [2018-04-12 10:21:01,490 INFO L128 ementStrategyFactory]: Using default assertion order modulation [2018-04-12 10:21:01,491 INFO L369 AbstractCegarLoop]: Interprodecural is true [2018-04-12 10:21:01,491 INFO L370 AbstractCegarLoop]: Hoare is false [2018-04-12 10:21:01,491 INFO L371 AbstractCegarLoop]: Compute interpolants for FPandBP [2018-04-12 10:21:01,491 INFO L372 AbstractCegarLoop]: Backedges is TWOTRACK [2018-04-12 10:21:01,491 INFO L373 AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2018-04-12 10:21:01,491 INFO L374 AbstractCegarLoop]: Difference is false [2018-04-12 10:21:01,491 INFO L375 AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA [2018-04-12 10:21:01,491 INFO L380 AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == AllErrorsAtOnce======== [2018-04-12 10:21:01,492 INFO L87 2NestedWordAutomaton]: Mode: main mode - execution starts in main procedure [2018-04-12 10:21:01,502 INFO L276 IsEmpty]: Start isEmpty. Operand 71 states. [2018-04-12 10:21:01,508 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 14 [2018-04-12 10:21:01,508 INFO L347 BasicCegarLoop]: Found error trace [2018-04-12 10:21:01,509 INFO L355 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2018-04-12 10:21:01,509 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]=== [2018-04-12 10:21:01,512 INFO L82 PathProgramCache]: Analyzing trace with hash -79722019, now seen corresponding path program 1 times [2018-04-12 10:21:01,514 INFO L213 ckRefinementStrategy]: Switched to mode SMTINTERPOL_TREE_INTERPOLANTS [2018-04-12 10:21:01,514 INFO L68 tionRefinementEngine]: Using refinement strategy CamelRefinementStrategy [2018-04-12 10:21:01,550 INFO L119 rtionOrderModulation]: Craig nested/tree interpolation forces the following order [2018-04-12 10:21:01,550 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-04-12 10:21:01,550 INFO L119 rtionOrderModulation]: Craig nested/tree interpolation forces the following order [2018-04-12 10:21:01,594 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-04-12 10:21:01,601 WARN L250 erpolLogProxyWrapper]: Using partial proofs (cut at CNF-level). Set option :produce-proofs to true to get complete proofs. [2018-04-12 10:21:01,688 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-04-12 10:21:01,690 INFO L320 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2018-04-12 10:21:01,690 INFO L335 seRefinementStrategy]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2018-04-12 10:21:01,692 INFO L442 AbstractCegarLoop]: Interpolant automaton has 4 states [2018-04-12 10:21:01,704 INFO L132 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2018-04-12 10:21:01,705 INFO L133 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2018-04-12 10:21:01,707 INFO L87 Difference]: Start difference. First operand 71 states. Second operand 4 states. [2018-04-12 10:21:01,941 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-04-12 10:21:01,941 INFO L93 Difference]: Finished difference Result 70 states and 75 transitions. [2018-04-12 10:21:01,941 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2018-04-12 10:21:01,942 INFO L78 Accepts]: Start accepts. Automaton has 4 states. Word has length 13 [2018-04-12 10:21:01,943 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-04-12 10:21:01,949 INFO L225 Difference]: With dead ends: 70 [2018-04-12 10:21:01,949 INFO L226 Difference]: Without dead ends: 67 [2018-04-12 10:21:01,951 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 [2018-04-12 10:21:01,961 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 67 states. [2018-04-12 10:21:01,971 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 67 to 67. [2018-04-12 10:21:01,972 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 67 states. [2018-04-12 10:21:01,974 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 67 states to 67 states and 72 transitions. [2018-04-12 10:21:01,975 INFO L78 Accepts]: Start accepts. Automaton has 67 states and 72 transitions. Word has length 13 [2018-04-12 10:21:01,975 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-04-12 10:21:01,975 INFO L459 AbstractCegarLoop]: Abstraction has 67 states and 72 transitions. [2018-04-12 10:21:01,975 INFO L460 AbstractCegarLoop]: Interpolant automaton has 4 states. [2018-04-12 10:21:01,975 INFO L276 IsEmpty]: Start isEmpty. Operand 67 states and 72 transitions. [2018-04-12 10:21:01,976 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 14 [2018-04-12 10:21:01,976 INFO L347 BasicCegarLoop]: Found error trace [2018-04-12 10:21:01,976 INFO L355 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2018-04-12 10:21:01,976 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]=== [2018-04-12 10:21:01,976 INFO L82 PathProgramCache]: Analyzing trace with hash -79722018, now seen corresponding path program 1 times [2018-04-12 10:21:01,976 INFO L213 ckRefinementStrategy]: Switched to mode SMTINTERPOL_TREE_INTERPOLANTS [2018-04-12 10:21:01,976 INFO L68 tionRefinementEngine]: Using refinement strategy CamelRefinementStrategy [2018-04-12 10:21:01,977 INFO L119 rtionOrderModulation]: Craig nested/tree interpolation forces the following order [2018-04-12 10:21:01,977 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-04-12 10:21:01,977 INFO L119 rtionOrderModulation]: Craig nested/tree interpolation forces the following order [2018-04-12 10:21:01,990 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-04-12 10:21:01,991 WARN L250 erpolLogProxyWrapper]: Using partial proofs (cut at CNF-level). Set option :produce-proofs to true to get complete proofs. [2018-04-12 10:21:02,061 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-04-12 10:21:02,062 INFO L320 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2018-04-12 10:21:02,062 INFO L335 seRefinementStrategy]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2018-04-12 10:21:02,063 INFO L442 AbstractCegarLoop]: Interpolant automaton has 5 states [2018-04-12 10:21:02,063 INFO L132 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2018-04-12 10:21:02,063 INFO L133 InterpolantAutomaton]: CoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2018-04-12 10:21:02,063 INFO L87 Difference]: Start difference. First operand 67 states and 72 transitions. Second operand 5 states. [2018-04-12 10:21:02,124 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-04-12 10:21:02,124 INFO L93 Difference]: Finished difference Result 66 states and 71 transitions. [2018-04-12 10:21:02,125 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2018-04-12 10:21:02,125 INFO L78 Accepts]: Start accepts. Automaton has 5 states. Word has length 13 [2018-04-12 10:21:02,125 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-04-12 10:21:02,126 INFO L225 Difference]: With dead ends: 66 [2018-04-12 10:21:02,126 INFO L226 Difference]: Without dead ends: 66 [2018-04-12 10:21:02,127 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 [2018-04-12 10:21:02,127 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 66 states. [2018-04-12 10:21:02,130 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 66 to 66. [2018-04-12 10:21:02,130 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 66 states. [2018-04-12 10:21:02,131 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 66 states to 66 states and 71 transitions. [2018-04-12 10:21:02,131 INFO L78 Accepts]: Start accepts. Automaton has 66 states and 71 transitions. Word has length 13 [2018-04-12 10:21:02,131 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-04-12 10:21:02,131 INFO L459 AbstractCegarLoop]: Abstraction has 66 states and 71 transitions. [2018-04-12 10:21:02,131 INFO L460 AbstractCegarLoop]: Interpolant automaton has 5 states. [2018-04-12 10:21:02,131 INFO L276 IsEmpty]: Start isEmpty. Operand 66 states and 71 transitions. [2018-04-12 10:21:02,132 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 17 [2018-04-12 10:21:02,132 INFO L347 BasicCegarLoop]: Found error trace [2018-04-12 10:21:02,132 INFO L355 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2018-04-12 10:21:02,132 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]=== [2018-04-12 10:21:02,132 INFO L82 PathProgramCache]: Analyzing trace with hash 118325590, now seen corresponding path program 1 times [2018-04-12 10:21:02,132 INFO L213 ckRefinementStrategy]: Switched to mode SMTINTERPOL_TREE_INTERPOLANTS [2018-04-12 10:21:02,133 INFO L68 tionRefinementEngine]: Using refinement strategy CamelRefinementStrategy [2018-04-12 10:21:02,134 INFO L119 rtionOrderModulation]: Craig nested/tree interpolation forces the following order [2018-04-12 10:21:02,134 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-04-12 10:21:02,134 INFO L119 rtionOrderModulation]: Craig nested/tree interpolation forces the following order [2018-04-12 10:21:02,149 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-04-12 10:21:02,150 WARN L250 erpolLogProxyWrapper]: Using partial proofs (cut at CNF-level). Set option :produce-proofs to true to get complete proofs. [2018-04-12 10:21:02,183 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-04-12 10:21:02,183 INFO L320 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2018-04-12 10:21:02,183 INFO L335 seRefinementStrategy]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2018-04-12 10:21:02,184 INFO L442 AbstractCegarLoop]: Interpolant automaton has 3 states [2018-04-12 10:21:02,184 INFO L132 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2018-04-12 10:21:02,184 INFO L133 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2018-04-12 10:21:02,184 INFO L87 Difference]: Start difference. First operand 66 states and 71 transitions. Second operand 3 states. [2018-04-12 10:21:02,286 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-04-12 10:21:02,287 INFO L93 Difference]: Finished difference Result 60 states and 65 transitions. [2018-04-12 10:21:02,287 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2018-04-12 10:21:02,287 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 16 [2018-04-12 10:21:02,287 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-04-12 10:21:02,288 INFO L225 Difference]: With dead ends: 60 [2018-04-12 10:21:02,288 INFO L226 Difference]: Without dead ends: 60 [2018-04-12 10:21:02,288 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 [2018-04-12 10:21:02,289 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 60 states. [2018-04-12 10:21:02,291 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 60 to 60. [2018-04-12 10:21:02,291 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 60 states. [2018-04-12 10:21:02,294 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 60 states to 60 states and 65 transitions. [2018-04-12 10:21:02,294 INFO L78 Accepts]: Start accepts. Automaton has 60 states and 65 transitions. Word has length 16 [2018-04-12 10:21:02,295 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-04-12 10:21:02,295 INFO L459 AbstractCegarLoop]: Abstraction has 60 states and 65 transitions. [2018-04-12 10:21:02,295 INFO L460 AbstractCegarLoop]: Interpolant automaton has 3 states. [2018-04-12 10:21:02,295 INFO L276 IsEmpty]: Start isEmpty. Operand 60 states and 65 transitions. [2018-04-12 10:21:02,295 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 17 [2018-04-12 10:21:02,295 INFO L347 BasicCegarLoop]: Found error trace [2018-04-12 10:21:02,295 INFO L355 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2018-04-12 10:21:02,295 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]=== [2018-04-12 10:21:02,296 INFO L82 PathProgramCache]: Analyzing trace with hash 118325591, now seen corresponding path program 1 times [2018-04-12 10:21:02,296 INFO L213 ckRefinementStrategy]: Switched to mode SMTINTERPOL_TREE_INTERPOLANTS [2018-04-12 10:21:02,296 INFO L68 tionRefinementEngine]: Using refinement strategy CamelRefinementStrategy [2018-04-12 10:21:02,297 INFO L119 rtionOrderModulation]: Craig nested/tree interpolation forces the following order [2018-04-12 10:21:02,297 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-04-12 10:21:02,297 INFO L119 rtionOrderModulation]: Craig nested/tree interpolation forces the following order [2018-04-12 10:21:02,309 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-04-12 10:21:02,310 WARN L250 erpolLogProxyWrapper]: Using partial proofs (cut at CNF-level). Set option :produce-proofs to true to get complete proofs. [2018-04-12 10:21:02,338 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-04-12 10:21:02,338 INFO L320 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2018-04-12 10:21:02,338 INFO L335 seRefinementStrategy]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2018-04-12 10:21:02,338 INFO L442 AbstractCegarLoop]: Interpolant automaton has 3 states [2018-04-12 10:21:02,338 INFO L132 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2018-04-12 10:21:02,339 INFO L133 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2018-04-12 10:21:02,339 INFO L87 Difference]: Start difference. First operand 60 states and 65 transitions. Second operand 3 states. [2018-04-12 10:21:02,410 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-04-12 10:21:02,410 INFO L93 Difference]: Finished difference Result 54 states and 59 transitions. [2018-04-12 10:21:02,410 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2018-04-12 10:21:02,410 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 16 [2018-04-12 10:21:02,410 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-04-12 10:21:02,411 INFO L225 Difference]: With dead ends: 54 [2018-04-12 10:21:02,411 INFO L226 Difference]: Without dead ends: 54 [2018-04-12 10:21:02,411 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 [2018-04-12 10:21:02,411 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 54 states. [2018-04-12 10:21:02,413 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 54 to 54. [2018-04-12 10:21:02,414 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 54 states. [2018-04-12 10:21:02,415 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 54 states to 54 states and 59 transitions. [2018-04-12 10:21:02,415 INFO L78 Accepts]: Start accepts. Automaton has 54 states and 59 transitions. Word has length 16 [2018-04-12 10:21:02,415 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-04-12 10:21:02,415 INFO L459 AbstractCegarLoop]: Abstraction has 54 states and 59 transitions. [2018-04-12 10:21:02,415 INFO L460 AbstractCegarLoop]: Interpolant automaton has 3 states. [2018-04-12 10:21:02,415 INFO L276 IsEmpty]: Start isEmpty. Operand 54 states and 59 transitions. [2018-04-12 10:21:02,416 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 26 [2018-04-12 10:21:02,416 INFO L347 BasicCegarLoop]: Found error trace [2018-04-12 10:21:02,416 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] [2018-04-12 10:21:02,416 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]=== [2018-04-12 10:21:02,416 INFO L82 PathProgramCache]: Analyzing trace with hash 1482550872, now seen corresponding path program 1 times [2018-04-12 10:21:02,417 INFO L213 ckRefinementStrategy]: Switched to mode SMTINTERPOL_TREE_INTERPOLANTS [2018-04-12 10:21:02,417 INFO L68 tionRefinementEngine]: Using refinement strategy CamelRefinementStrategy [2018-04-12 10:21:02,417 INFO L119 rtionOrderModulation]: Craig nested/tree interpolation forces the following order [2018-04-12 10:21:02,418 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-04-12 10:21:02,418 INFO L119 rtionOrderModulation]: Craig nested/tree interpolation forces the following order [2018-04-12 10:21:02,445 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-04-12 10:21:02,446 WARN L250 erpolLogProxyWrapper]: Using partial proofs (cut at CNF-level). Set option :produce-proofs to true to get complete proofs. [2018-04-12 10:21:02,557 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-04-12 10:21:02,558 INFO L320 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2018-04-12 10:21:02,558 INFO L335 seRefinementStrategy]: Number of different interpolants: perfect sequences [9] imperfect sequences [] total 9 [2018-04-12 10:21:02,558 INFO L442 AbstractCegarLoop]: Interpolant automaton has 10 states [2018-04-12 10:21:02,558 INFO L132 InterpolantAutomaton]: Constructing interpolant automaton starting with 10 interpolants. [2018-04-12 10:21:02,559 INFO L133 InterpolantAutomaton]: CoverageRelationStatistics Valid=21, Invalid=69, Unknown=0, NotChecked=0, Total=90 [2018-04-12 10:21:02,559 INFO L87 Difference]: Start difference. First operand 54 states and 59 transitions. Second operand 10 states. [2018-04-12 10:21:02,671 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-04-12 10:21:02,671 INFO L93 Difference]: Finished difference Result 56 states and 61 transitions. [2018-04-12 10:21:02,672 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2018-04-12 10:21:02,672 INFO L78 Accepts]: Start accepts. Automaton has 10 states. Word has length 25 [2018-04-12 10:21:02,672 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-04-12 10:21:02,673 INFO L225 Difference]: With dead ends: 56 [2018-04-12 10:21:02,673 INFO L226 Difference]: Without dead ends: 56 [2018-04-12 10:21:02,673 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 [2018-04-12 10:21:02,673 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 56 states. [2018-04-12 10:21:02,675 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 56 to 53. [2018-04-12 10:21:02,676 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 53 states. [2018-04-12 10:21:02,676 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 53 states to 53 states and 58 transitions. [2018-04-12 10:21:02,676 INFO L78 Accepts]: Start accepts. Automaton has 53 states and 58 transitions. Word has length 25 [2018-04-12 10:21:02,676 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-04-12 10:21:02,676 INFO L459 AbstractCegarLoop]: Abstraction has 53 states and 58 transitions. [2018-04-12 10:21:02,676 INFO L460 AbstractCegarLoop]: Interpolant automaton has 10 states. [2018-04-12 10:21:02,677 INFO L276 IsEmpty]: Start isEmpty. Operand 53 states and 58 transitions. [2018-04-12 10:21:02,677 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 26 [2018-04-12 10:21:02,677 INFO L347 BasicCegarLoop]: Found error trace [2018-04-12 10:21:02,677 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] [2018-04-12 10:21:02,677 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]=== [2018-04-12 10:21:02,677 INFO L82 PathProgramCache]: Analyzing trace with hash 1482550873, now seen corresponding path program 1 times [2018-04-12 10:21:02,677 INFO L213 ckRefinementStrategy]: Switched to mode SMTINTERPOL_TREE_INTERPOLANTS [2018-04-12 10:21:02,678 INFO L68 tionRefinementEngine]: Using refinement strategy CamelRefinementStrategy [2018-04-12 10:21:02,678 INFO L119 rtionOrderModulation]: Craig nested/tree interpolation forces the following order [2018-04-12 10:21:02,678 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-04-12 10:21:02,678 INFO L119 rtionOrderModulation]: Craig nested/tree interpolation forces the following order [2018-04-12 10:21:02,696 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-04-12 10:21:02,696 WARN L250 erpolLogProxyWrapper]: Using partial proofs (cut at CNF-level). Set option :produce-proofs to true to get complete proofs. [2018-04-12 10:21:02,817 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-04-12 10:21:02,817 INFO L320 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2018-04-12 10:21:02,817 INFO L335 seRefinementStrategy]: Number of different interpolants: perfect sequences [10] imperfect sequences [] total 10 [2018-04-12 10:21:02,817 INFO L442 AbstractCegarLoop]: Interpolant automaton has 11 states [2018-04-12 10:21:02,818 INFO L132 InterpolantAutomaton]: Constructing interpolant automaton starting with 11 interpolants. [2018-04-12 10:21:02,818 INFO L133 InterpolantAutomaton]: CoverageRelationStatistics Valid=22, Invalid=88, Unknown=0, NotChecked=0, Total=110 [2018-04-12 10:21:02,818 INFO L87 Difference]: Start difference. First operand 53 states and 58 transitions. Second operand 11 states. [2018-04-12 10:21:02,982 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-04-12 10:21:02,982 INFO L93 Difference]: Finished difference Result 59 states and 65 transitions. [2018-04-12 10:21:02,982 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 11 states. [2018-04-12 10:21:02,982 INFO L78 Accepts]: Start accepts. Automaton has 11 states. Word has length 25 [2018-04-12 10:21:02,982 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-04-12 10:21:02,983 INFO L225 Difference]: With dead ends: 59 [2018-04-12 10:21:02,983 INFO L226 Difference]: Without dead ends: 59 [2018-04-12 10:21:02,983 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 [2018-04-12 10:21:02,983 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 59 states. [2018-04-12 10:21:02,985 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 59 to 55. [2018-04-12 10:21:02,985 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 55 states. [2018-04-12 10:21:02,986 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 55 states to 55 states and 60 transitions. [2018-04-12 10:21:02,986 INFO L78 Accepts]: Start accepts. Automaton has 55 states and 60 transitions. Word has length 25 [2018-04-12 10:21:02,986 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-04-12 10:21:02,987 INFO L459 AbstractCegarLoop]: Abstraction has 55 states and 60 transitions. [2018-04-12 10:21:02,987 INFO L460 AbstractCegarLoop]: Interpolant automaton has 11 states. [2018-04-12 10:21:02,987 INFO L276 IsEmpty]: Start isEmpty. Operand 55 states and 60 transitions. [2018-04-12 10:21:02,987 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 27 [2018-04-12 10:21:02,987 INFO L347 BasicCegarLoop]: Found error trace [2018-04-12 10:21:02,987 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] [2018-04-12 10:21:02,988 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]=== [2018-04-12 10:21:02,988 INFO L82 PathProgramCache]: Analyzing trace with hash -1285563194, now seen corresponding path program 1 times [2018-04-12 10:21:02,988 INFO L213 ckRefinementStrategy]: Switched to mode SMTINTERPOL_TREE_INTERPOLANTS [2018-04-12 10:21:02,988 INFO L68 tionRefinementEngine]: Using refinement strategy CamelRefinementStrategy [2018-04-12 10:21:02,988 INFO L119 rtionOrderModulation]: Craig nested/tree interpolation forces the following order [2018-04-12 10:21:02,989 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-04-12 10:21:02,989 INFO L119 rtionOrderModulation]: Craig nested/tree interpolation forces the following order [2018-04-12 10:21:03,007 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-04-12 10:21:03,008 WARN L250 erpolLogProxyWrapper]: Using partial proofs (cut at CNF-level). Set option :produce-proofs to true to get complete proofs. [2018-04-12 10:21:03,195 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-04-12 10:21:03,195 INFO L320 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2018-04-12 10:21:03,195 INFO L335 seRefinementStrategy]: Number of different interpolants: perfect sequences [13] imperfect sequences [] total 13 [2018-04-12 10:21:03,196 INFO L442 AbstractCegarLoop]: Interpolant automaton has 14 states [2018-04-12 10:21:03,196 INFO L132 InterpolantAutomaton]: Constructing interpolant automaton starting with 14 interpolants. [2018-04-12 10:21:03,196 INFO L133 InterpolantAutomaton]: CoverageRelationStatistics Valid=29, Invalid=153, Unknown=0, NotChecked=0, Total=182 [2018-04-12 10:21:03,196 INFO L87 Difference]: Start difference. First operand 55 states and 60 transitions. Second operand 14 states. [2018-04-12 10:21:03,439 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-04-12 10:21:03,439 INFO L93 Difference]: Finished difference Result 57 states and 62 transitions. [2018-04-12 10:21:03,439 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 13 states. [2018-04-12 10:21:03,439 INFO L78 Accepts]: Start accepts. Automaton has 14 states. Word has length 26 [2018-04-12 10:21:03,439 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-04-12 10:21:03,440 INFO L225 Difference]: With dead ends: 57 [2018-04-12 10:21:03,440 INFO L226 Difference]: Without dead ends: 57 [2018-04-12 10:21:03,441 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 [2018-04-12 10:21:03,441 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 57 states. [2018-04-12 10:21:03,443 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 57 to 54. [2018-04-12 10:21:03,443 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 54 states. [2018-04-12 10:21:03,444 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 54 states to 54 states and 59 transitions. [2018-04-12 10:21:03,444 INFO L78 Accepts]: Start accepts. Automaton has 54 states and 59 transitions. Word has length 26 [2018-04-12 10:21:03,444 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-04-12 10:21:03,444 INFO L459 AbstractCegarLoop]: Abstraction has 54 states and 59 transitions. [2018-04-12 10:21:03,444 INFO L460 AbstractCegarLoop]: Interpolant automaton has 14 states. [2018-04-12 10:21:03,444 INFO L276 IsEmpty]: Start isEmpty. Operand 54 states and 59 transitions. [2018-04-12 10:21:03,445 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 27 [2018-04-12 10:21:03,445 INFO L347 BasicCegarLoop]: Found error trace [2018-04-12 10:21:03,445 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] [2018-04-12 10:21:03,445 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]=== [2018-04-12 10:21:03,445 INFO L82 PathProgramCache]: Analyzing trace with hash -1285563193, now seen corresponding path program 1 times [2018-04-12 10:21:03,446 INFO L213 ckRefinementStrategy]: Switched to mode SMTINTERPOL_TREE_INTERPOLANTS [2018-04-12 10:21:03,446 INFO L68 tionRefinementEngine]: Using refinement strategy CamelRefinementStrategy [2018-04-12 10:21:03,446 INFO L119 rtionOrderModulation]: Craig nested/tree interpolation forces the following order [2018-04-12 10:21:03,447 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-04-12 10:21:03,447 INFO L119 rtionOrderModulation]: Craig nested/tree interpolation forces the following order [2018-04-12 10:21:03,460 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-04-12 10:21:03,460 WARN L250 erpolLogProxyWrapper]: Using partial proofs (cut at CNF-level). Set option :produce-proofs to true to get complete proofs. [2018-04-12 10:21:03,588 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-04-12 10:21:03,589 INFO L320 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2018-04-12 10:21:03,589 INFO L335 seRefinementStrategy]: Number of different interpolants: perfect sequences [12] imperfect sequences [] total 12 [2018-04-12 10:21:03,589 INFO L442 AbstractCegarLoop]: Interpolant automaton has 13 states [2018-04-12 10:21:03,589 INFO L132 InterpolantAutomaton]: Constructing interpolant automaton starting with 13 interpolants. [2018-04-12 10:21:03,589 INFO L133 InterpolantAutomaton]: CoverageRelationStatistics Valid=29, Invalid=127, Unknown=0, NotChecked=0, Total=156 [2018-04-12 10:21:03,590 INFO L87 Difference]: Start difference. First operand 54 states and 59 transitions. Second operand 13 states. [2018-04-12 10:21:03,784 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-04-12 10:21:03,784 INFO L93 Difference]: Finished difference Result 59 states and 64 transitions. [2018-04-12 10:21:03,784 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 13 states. [2018-04-12 10:21:03,784 INFO L78 Accepts]: Start accepts. Automaton has 13 states. Word has length 26 [2018-04-12 10:21:03,785 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-04-12 10:21:03,785 INFO L225 Difference]: With dead ends: 59 [2018-04-12 10:21:03,785 INFO L226 Difference]: Without dead ends: 59 [2018-04-12 10:21:03,785 INFO L567 BasicCegarLoop]: 0 DeclaredPredicates, 21 GetRequests, 1 SyntacticMatches, 1 SemanticMatches, 19 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 79 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=78, Invalid=342, Unknown=0, NotChecked=0, Total=420 [2018-04-12 10:21:03,786 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 59 states. [2018-04-12 10:21:03,787 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 59 to 55. [2018-04-12 10:21:03,788 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 55 states. [2018-04-12 10:21:03,788 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 55 states to 55 states and 60 transitions. [2018-04-12 10:21:03,788 INFO L78 Accepts]: Start accepts. Automaton has 55 states and 60 transitions. Word has length 26 [2018-04-12 10:21:03,789 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-04-12 10:21:03,789 INFO L459 AbstractCegarLoop]: Abstraction has 55 states and 60 transitions. [2018-04-12 10:21:03,789 INFO L460 AbstractCegarLoop]: Interpolant automaton has 13 states. [2018-04-12 10:21:03,789 INFO L276 IsEmpty]: Start isEmpty. Operand 55 states and 60 transitions. [2018-04-12 10:21:03,789 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 31 [2018-04-12 10:21:03,789 INFO L347 BasicCegarLoop]: Found error trace [2018-04-12 10:21:03,790 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] [2018-04-12 10:21:03,790 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]=== [2018-04-12 10:21:03,790 INFO L82 PathProgramCache]: Analyzing trace with hash -551009024, now seen corresponding path program 1 times [2018-04-12 10:21:03,790 INFO L213 ckRefinementStrategy]: Switched to mode SMTINTERPOL_TREE_INTERPOLANTS [2018-04-12 10:21:03,790 INFO L68 tionRefinementEngine]: Using refinement strategy CamelRefinementStrategy [2018-04-12 10:21:03,791 INFO L119 rtionOrderModulation]: Craig nested/tree interpolation forces the following order [2018-04-12 10:21:03,791 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-04-12 10:21:03,791 INFO L119 rtionOrderModulation]: Craig nested/tree interpolation forces the following order [2018-04-12 10:21:03,798 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-04-12 10:21:03,799 WARN L250 erpolLogProxyWrapper]: Using partial proofs (cut at CNF-level). Set option :produce-proofs to true to get complete proofs. [2018-04-12 10:21:03,839 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-04-12 10:21:03,840 INFO L320 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2018-04-12 10:21:03,840 INFO L335 seRefinementStrategy]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2018-04-12 10:21:03,840 INFO L442 AbstractCegarLoop]: Interpolant automaton has 5 states [2018-04-12 10:21:03,840 INFO L132 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2018-04-12 10:21:03,840 INFO L133 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2018-04-12 10:21:03,841 INFO L87 Difference]: Start difference. First operand 55 states and 60 transitions. Second operand 5 states. [2018-04-12 10:21:03,867 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-04-12 10:21:03,867 INFO L93 Difference]: Finished difference Result 79 states and 85 transitions. [2018-04-12 10:21:03,867 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2018-04-12 10:21:03,867 INFO L78 Accepts]: Start accepts. Automaton has 5 states. Word has length 30 [2018-04-12 10:21:03,867 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-04-12 10:21:03,870 INFO L225 Difference]: With dead ends: 79 [2018-04-12 10:21:03,870 INFO L226 Difference]: Without dead ends: 79 [2018-04-12 10:21:03,870 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 [2018-04-12 10:21:03,870 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 79 states. [2018-04-12 10:21:03,878 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 79 to 67. [2018-04-12 10:21:03,878 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 67 states. [2018-04-12 10:21:03,879 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 67 states to 67 states and 73 transitions. [2018-04-12 10:21:03,879 INFO L78 Accepts]: Start accepts. Automaton has 67 states and 73 transitions. Word has length 30 [2018-04-12 10:21:03,879 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-04-12 10:21:03,879 INFO L459 AbstractCegarLoop]: Abstraction has 67 states and 73 transitions. [2018-04-12 10:21:03,879 INFO L460 AbstractCegarLoop]: Interpolant automaton has 5 states. [2018-04-12 10:21:03,880 INFO L276 IsEmpty]: Start isEmpty. Operand 67 states and 73 transitions. [2018-04-12 10:21:03,880 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 31 [2018-04-12 10:21:03,880 INFO L347 BasicCegarLoop]: Found error trace [2018-04-12 10:21:03,880 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] [2018-04-12 10:21:03,881 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]=== [2018-04-12 10:21:03,881 INFO L82 PathProgramCache]: Analyzing trace with hash 1938519938, now seen corresponding path program 1 times [2018-04-12 10:21:03,881 INFO L213 ckRefinementStrategy]: Switched to mode SMTINTERPOL_TREE_INTERPOLANTS [2018-04-12 10:21:03,881 INFO L68 tionRefinementEngine]: Using refinement strategy CamelRefinementStrategy [2018-04-12 10:21:03,881 INFO L119 rtionOrderModulation]: Craig nested/tree interpolation forces the following order [2018-04-12 10:21:03,882 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-04-12 10:21:03,882 INFO L119 rtionOrderModulation]: Craig nested/tree interpolation forces the following order [2018-04-12 10:21:03,892 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-04-12 10:21:03,893 WARN L250 erpolLogProxyWrapper]: Using partial proofs (cut at CNF-level). Set option :produce-proofs to true to get complete proofs. [2018-04-12 10:21:03,919 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-04-12 10:21:03,919 INFO L320 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2018-04-12 10:21:03,919 INFO L335 seRefinementStrategy]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2018-04-12 10:21:03,919 INFO L442 AbstractCegarLoop]: Interpolant automaton has 6 states [2018-04-12 10:21:03,920 INFO L132 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2018-04-12 10:21:03,920 INFO L133 InterpolantAutomaton]: CoverageRelationStatistics Valid=10, Invalid=20, Unknown=0, NotChecked=0, Total=30 [2018-04-12 10:21:03,920 INFO L87 Difference]: Start difference. First operand 67 states and 73 transitions. Second operand 6 states. [2018-04-12 10:21:03,952 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-04-12 10:21:03,952 INFO L93 Difference]: Finished difference Result 72 states and 78 transitions. [2018-04-12 10:21:03,952 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2018-04-12 10:21:03,952 INFO L78 Accepts]: Start accepts. Automaton has 6 states. Word has length 30 [2018-04-12 10:21:03,953 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-04-12 10:21:03,953 INFO L225 Difference]: With dead ends: 72 [2018-04-12 10:21:03,953 INFO L226 Difference]: Without dead ends: 66 [2018-04-12 10:21:03,953 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 [2018-04-12 10:21:03,954 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 66 states. [2018-04-12 10:21:03,956 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 66 to 55. [2018-04-12 10:21:03,956 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 55 states. [2018-04-12 10:21:03,956 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 55 states to 55 states and 59 transitions. [2018-04-12 10:21:03,956 INFO L78 Accepts]: Start accepts. Automaton has 55 states and 59 transitions. Word has length 30 [2018-04-12 10:21:03,956 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-04-12 10:21:03,957 INFO L459 AbstractCegarLoop]: Abstraction has 55 states and 59 transitions. [2018-04-12 10:21:03,957 INFO L460 AbstractCegarLoop]: Interpolant automaton has 6 states. [2018-04-12 10:21:03,957 INFO L276 IsEmpty]: Start isEmpty. Operand 55 states and 59 transitions. [2018-04-12 10:21:03,957 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 32 [2018-04-12 10:21:03,957 INFO L347 BasicCegarLoop]: Found error trace [2018-04-12 10:21:03,957 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] [2018-04-12 10:21:03,958 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]=== [2018-04-12 10:21:03,958 INFO L82 PathProgramCache]: Analyzing trace with hash 1331085243, now seen corresponding path program 1 times [2018-04-12 10:21:03,958 INFO L213 ckRefinementStrategy]: Switched to mode SMTINTERPOL_TREE_INTERPOLANTS [2018-04-12 10:21:03,958 INFO L68 tionRefinementEngine]: Using refinement strategy CamelRefinementStrategy [2018-04-12 10:21:03,959 INFO L119 rtionOrderModulation]: Craig nested/tree interpolation forces the following order [2018-04-12 10:21:03,959 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-04-12 10:21:03,959 INFO L119 rtionOrderModulation]: Craig nested/tree interpolation forces the following order [2018-04-12 10:21:03,968 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-04-12 10:21:03,969 WARN L250 erpolLogProxyWrapper]: Using partial proofs (cut at CNF-level). Set option :produce-proofs to true to get complete proofs. [2018-04-12 10:21:04,006 INFO L134 CoverageAnalysis]: Checked inductivity of 2 backedges. 2 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-04-12 10:21:04,007 INFO L320 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2018-04-12 10:21:04,007 INFO L335 seRefinementStrategy]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2018-04-12 10:21:04,007 INFO L442 AbstractCegarLoop]: Interpolant automaton has 6 states [2018-04-12 10:21:04,007 INFO L132 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2018-04-12 10:21:04,007 INFO L133 InterpolantAutomaton]: CoverageRelationStatistics Valid=9, Invalid=21, Unknown=0, NotChecked=0, Total=30 [2018-04-12 10:21:04,008 INFO L87 Difference]: Start difference. First operand 55 states and 59 transitions. Second operand 6 states. [2018-04-12 10:21:04,046 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-04-12 10:21:04,047 INFO L93 Difference]: Finished difference Result 99 states and 104 transitions. [2018-04-12 10:21:04,047 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2018-04-12 10:21:04,047 INFO L78 Accepts]: Start accepts. Automaton has 6 states. Word has length 31 [2018-04-12 10:21:04,047 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-04-12 10:21:04,048 INFO L225 Difference]: With dead ends: 99 [2018-04-12 10:21:04,048 INFO L226 Difference]: Without dead ends: 99 [2018-04-12 10:21:04,048 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 [2018-04-12 10:21:04,048 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 99 states. [2018-04-12 10:21:04,052 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 99 to 88. [2018-04-12 10:21:04,052 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 88 states. [2018-04-12 10:21:04,052 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 88 states to 88 states and 96 transitions. [2018-04-12 10:21:04,053 INFO L78 Accepts]: Start accepts. Automaton has 88 states and 96 transitions. Word has length 31 [2018-04-12 10:21:04,053 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-04-12 10:21:04,053 INFO L459 AbstractCegarLoop]: Abstraction has 88 states and 96 transitions. [2018-04-12 10:21:04,053 INFO L460 AbstractCegarLoop]: Interpolant automaton has 6 states. [2018-04-12 10:21:04,053 INFO L276 IsEmpty]: Start isEmpty. Operand 88 states and 96 transitions. [2018-04-12 10:21:04,054 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 32 [2018-04-12 10:21:04,054 INFO L347 BasicCegarLoop]: Found error trace [2018-04-12 10:21:04,054 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] [2018-04-12 10:21:04,054 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]=== [2018-04-12 10:21:04,054 INFO L82 PathProgramCache]: Analyzing trace with hash 1197071737, now seen corresponding path program 1 times [2018-04-12 10:21:04,054 INFO L213 ckRefinementStrategy]: Switched to mode SMTINTERPOL_TREE_INTERPOLANTS [2018-04-12 10:21:04,054 INFO L68 tionRefinementEngine]: Using refinement strategy CamelRefinementStrategy [2018-04-12 10:21:04,059 INFO L119 rtionOrderModulation]: Craig nested/tree interpolation forces the following order [2018-04-12 10:21:04,059 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-04-12 10:21:04,060 INFO L119 rtionOrderModulation]: Craig nested/tree interpolation forces the following order [2018-04-12 10:21:04,084 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-04-12 10:21:04,085 WARN L250 erpolLogProxyWrapper]: Using partial proofs (cut at CNF-level). Set option :produce-proofs to true to get complete proofs. [2018-04-12 10:21:04,205 INFO L134 CoverageAnalysis]: Checked inductivity of 2 backedges. 2 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-04-12 10:21:04,205 INFO L320 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2018-04-12 10:21:04,205 INFO L335 seRefinementStrategy]: Number of different interpolants: perfect sequences [11] imperfect sequences [] total 11 [2018-04-12 10:21:04,205 INFO L442 AbstractCegarLoop]: Interpolant automaton has 11 states [2018-04-12 10:21:04,206 INFO L132 InterpolantAutomaton]: Constructing interpolant automaton starting with 11 interpolants. [2018-04-12 10:21:04,206 INFO L133 InterpolantAutomaton]: CoverageRelationStatistics Valid=21, Invalid=89, Unknown=0, NotChecked=0, Total=110 [2018-04-12 10:21:04,206 INFO L87 Difference]: Start difference. First operand 88 states and 96 transitions. Second operand 11 states. [2018-04-12 10:21:04,314 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-04-12 10:21:04,314 INFO L93 Difference]: Finished difference Result 160 states and 172 transitions. [2018-04-12 10:21:04,314 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 12 states. [2018-04-12 10:21:04,314 INFO L78 Accepts]: Start accepts. Automaton has 11 states. Word has length 31 [2018-04-12 10:21:04,314 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-04-12 10:21:04,315 INFO L225 Difference]: With dead ends: 160 [2018-04-12 10:21:04,315 INFO L226 Difference]: Without dead ends: 160 [2018-04-12 10:21:04,315 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 [2018-04-12 10:21:04,315 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 160 states. [2018-04-12 10:21:04,318 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 160 to 120. [2018-04-12 10:21:04,319 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 120 states. [2018-04-12 10:21:04,319 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 120 states to 120 states and 132 transitions. [2018-04-12 10:21:04,319 INFO L78 Accepts]: Start accepts. Automaton has 120 states and 132 transitions. Word has length 31 [2018-04-12 10:21:04,319 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-04-12 10:21:04,319 INFO L459 AbstractCegarLoop]: Abstraction has 120 states and 132 transitions. [2018-04-12 10:21:04,319 INFO L460 AbstractCegarLoop]: Interpolant automaton has 11 states. [2018-04-12 10:21:04,319 INFO L276 IsEmpty]: Start isEmpty. Operand 120 states and 132 transitions. [2018-04-12 10:21:04,320 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 32 [2018-04-12 10:21:04,320 INFO L347 BasicCegarLoop]: Found error trace [2018-04-12 10:21:04,320 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] [2018-04-12 10:21:04,320 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]=== [2018-04-12 10:21:04,320 INFO L82 PathProgramCache]: Analyzing trace with hash 1337620347, now seen corresponding path program 1 times [2018-04-12 10:21:04,320 INFO L213 ckRefinementStrategy]: Switched to mode SMTINTERPOL_TREE_INTERPOLANTS [2018-04-12 10:21:04,320 INFO L68 tionRefinementEngine]: Using refinement strategy CamelRefinementStrategy [2018-04-12 10:21:04,321 INFO L119 rtionOrderModulation]: Craig nested/tree interpolation forces the following order [2018-04-12 10:21:04,321 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-04-12 10:21:04,321 INFO L119 rtionOrderModulation]: Craig nested/tree interpolation forces the following order [2018-04-12 10:21:04,332 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-04-12 10:21:04,332 WARN L250 erpolLogProxyWrapper]: Using partial proofs (cut at CNF-level). Set option :produce-proofs to true to get complete proofs. [2018-04-12 10:21:04,475 INFO L134 CoverageAnalysis]: Checked inductivity of 2 backedges. 0 proven. 2 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-04-12 10:21:04,476 INFO L308 seRefinementStrategy]: The current sequences of interpolants are not accepted, trying to find more. [2018-04-12 10:21:04,476 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 [2018-04-12 10:21:04,481 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-04-12 10:21:04,513 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-04-12 10:21:04,521 INFO L270 TraceCheckSpWp]: Computing forward predicates... [2018-04-12 10:21:04,572 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 14 treesize of output 11 [2018-04-12 10:21:04,575 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 [2018-04-12 10:21:04,576 INFO L267 ElimStorePlain]: Start of recursive call 3: End of recursive call: and 1 xjuncts. [2018-04-12 10:21:04,577 INFO L267 ElimStorePlain]: Start of recursive call 2: 1 dim-1 vars, End of recursive call: and 1 xjuncts. [2018-04-12 10:21:04,582 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. [2018-04-12 10:21:04,582 INFO L202 ElimStorePlain]: Needed 3 recursive calls to eliminate 2 variables, input treesize:30, output treesize:26 [2018-04-12 10:21:04,630 INFO L700 Elim1Store]: detected not equals via solver [2018-04-12 10:21:04,631 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 [2018-04-12 10:21:04,632 INFO L267 ElimStorePlain]: Start of recursive call 2: End of recursive call: and 1 xjuncts. [2018-04-12 10:21:04,648 INFO L700 Elim1Store]: detected not equals via solver [2018-04-12 10:21:04,648 INFO L700 Elim1Store]: detected not equals via solver [2018-04-12 10:21:04,649 INFO L477 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 2 select indices, 2 select index equivalence classes, 2 disjoint index pairs (out of 1 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 11 treesize of output 4 [2018-04-12 10:21:04,649 INFO L267 ElimStorePlain]: Start of recursive call 3: End of recursive call: and 1 xjuncts. [2018-04-12 10:21:04,660 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. [2018-04-12 10:21:04,660 INFO L202 ElimStorePlain]: Needed 3 recursive calls to eliminate 5 variables, input treesize:40, output treesize:33 [2018-04-12 10:21:04,817 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 [2018-04-12 10:21:04,824 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 [2018-04-12 10:21:04,825 INFO L267 ElimStorePlain]: Start of recursive call 3: End of recursive call: and 2 xjuncts. [2018-04-12 10:21:04,828 INFO L267 ElimStorePlain]: Start of recursive call 2: 1 dim-1 vars, End of recursive call: and 2 xjuncts. [2018-04-12 10:21:04,839 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. [2018-04-12 10:21:04,839 INFO L202 ElimStorePlain]: Needed 3 recursive calls to eliminate 4 variables, input treesize:47, output treesize:47 [2018-04-12 10:21:04,932 INFO L134 CoverageAnalysis]: Checked inductivity of 2 backedges. 0 proven. 2 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-04-12 10:21:04,955 INFO L320 seRefinementStrategy]: Constructing automaton from 0 perfect and 2 imperfect interpolant sequences. [2018-04-12 10:21:04,956 INFO L335 seRefinementStrategy]: Number of different interpolants: perfect sequences [] imperfect sequences [12, 11] total 21 [2018-04-12 10:21:04,956 INFO L442 AbstractCegarLoop]: Interpolant automaton has 22 states [2018-04-12 10:21:04,956 INFO L132 InterpolantAutomaton]: Constructing interpolant automaton starting with 22 interpolants. [2018-04-12 10:21:04,956 INFO L133 InterpolantAutomaton]: CoverageRelationStatistics Valid=49, Invalid=413, Unknown=0, NotChecked=0, Total=462 [2018-04-12 10:21:04,956 INFO L87 Difference]: Start difference. First operand 120 states and 132 transitions. Second operand 22 states. [2018-04-12 10:21:05,696 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-04-12 10:21:05,697 INFO L93 Difference]: Finished difference Result 140 states and 155 transitions. [2018-04-12 10:21:05,697 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 15 states. [2018-04-12 10:21:05,697 INFO L78 Accepts]: Start accepts. Automaton has 22 states. Word has length 31 [2018-04-12 10:21:05,697 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-04-12 10:21:05,698 INFO L225 Difference]: With dead ends: 140 [2018-04-12 10:21:05,698 INFO L226 Difference]: Without dead ends: 140 [2018-04-12 10:21:05,698 INFO L567 BasicCegarLoop]: 0 DeclaredPredicates, 52 GetRequests, 22 SyntacticMatches, 1 SemanticMatches, 29 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 114 ImplicationChecksByTransitivity, 0.8s TimeCoverageRelationStatistics Valid=126, Invalid=804, Unknown=0, NotChecked=0, Total=930 [2018-04-12 10:21:05,698 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 140 states. [2018-04-12 10:21:05,700 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 140 to 125. [2018-04-12 10:21:05,700 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 125 states. [2018-04-12 10:21:05,701 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 125 states to 125 states and 139 transitions. [2018-04-12 10:21:05,701 INFO L78 Accepts]: Start accepts. Automaton has 125 states and 139 transitions. Word has length 31 [2018-04-12 10:21:05,701 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-04-12 10:21:05,701 INFO L459 AbstractCegarLoop]: Abstraction has 125 states and 139 transitions. [2018-04-12 10:21:05,701 INFO L460 AbstractCegarLoop]: Interpolant automaton has 22 states. [2018-04-12 10:21:05,701 INFO L276 IsEmpty]: Start isEmpty. Operand 125 states and 139 transitions. [2018-04-12 10:21:05,702 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 33 [2018-04-12 10:21:05,702 INFO L347 BasicCegarLoop]: Found error trace [2018-04-12 10:21:05,702 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] [2018-04-12 10:21:05,702 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]=== [2018-04-12 10:21:05,702 INFO L82 PathProgramCache]: Analyzing trace with hash 1927634698, now seen corresponding path program 1 times [2018-04-12 10:21:05,702 INFO L213 ckRefinementStrategy]: Switched to mode SMTINTERPOL_TREE_INTERPOLANTS [2018-04-12 10:21:05,702 INFO L68 tionRefinementEngine]: Using refinement strategy CamelRefinementStrategy [2018-04-12 10:21:05,705 INFO L119 rtionOrderModulation]: Craig nested/tree interpolation forces the following order [2018-04-12 10:21:05,705 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-04-12 10:21:05,705 INFO L119 rtionOrderModulation]: Craig nested/tree interpolation forces the following order [2018-04-12 10:21:05,711 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-04-12 10:21:05,711 WARN L250 erpolLogProxyWrapper]: Using partial proofs (cut at CNF-level). Set option :produce-proofs to true to get complete proofs. [2018-04-12 10:21:05,728 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-04-12 10:21:05,728 INFO L320 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2018-04-12 10:21:05,728 INFO L335 seRefinementStrategy]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2018-04-12 10:21:05,729 INFO L442 AbstractCegarLoop]: Interpolant automaton has 5 states [2018-04-12 10:21:05,729 INFO L132 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2018-04-12 10:21:05,729 INFO L133 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2018-04-12 10:21:05,729 INFO L87 Difference]: Start difference. First operand 125 states and 139 transitions. Second operand 5 states. [2018-04-12 10:21:05,787 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-04-12 10:21:05,787 INFO L93 Difference]: Finished difference Result 124 states and 136 transitions. [2018-04-12 10:21:05,787 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2018-04-12 10:21:05,787 INFO L78 Accepts]: Start accepts. Automaton has 5 states. Word has length 32 [2018-04-12 10:21:05,787 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-04-12 10:21:05,788 INFO L225 Difference]: With dead ends: 124 [2018-04-12 10:21:05,788 INFO L226 Difference]: Without dead ends: 124 [2018-04-12 10:21:05,788 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 [2018-04-12 10:21:05,789 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 124 states. [2018-04-12 10:21:05,791 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 124 to 124. [2018-04-12 10:21:05,791 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 124 states. [2018-04-12 10:21:05,792 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 124 states to 124 states and 136 transitions. [2018-04-12 10:21:05,792 INFO L78 Accepts]: Start accepts. Automaton has 124 states and 136 transitions. Word has length 32 [2018-04-12 10:21:05,792 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-04-12 10:21:05,792 INFO L459 AbstractCegarLoop]: Abstraction has 124 states and 136 transitions. [2018-04-12 10:21:05,792 INFO L460 AbstractCegarLoop]: Interpolant automaton has 5 states. [2018-04-12 10:21:05,792 INFO L276 IsEmpty]: Start isEmpty. Operand 124 states and 136 transitions. [2018-04-12 10:21:05,793 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 33 [2018-04-12 10:21:05,793 INFO L347 BasicCegarLoop]: Found error trace [2018-04-12 10:21:05,793 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] [2018-04-12 10:21:05,793 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]=== [2018-04-12 10:21:05,794 INFO L82 PathProgramCache]: Analyzing trace with hash 1927634699, now seen corresponding path program 1 times [2018-04-12 10:21:05,794 INFO L213 ckRefinementStrategy]: Switched to mode SMTINTERPOL_TREE_INTERPOLANTS [2018-04-12 10:21:05,794 INFO L68 tionRefinementEngine]: Using refinement strategy CamelRefinementStrategy [2018-04-12 10:21:05,794 INFO L119 rtionOrderModulation]: Craig nested/tree interpolation forces the following order [2018-04-12 10:21:05,794 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-04-12 10:21:05,795 INFO L119 rtionOrderModulation]: Craig nested/tree interpolation forces the following order [2018-04-12 10:21:05,802 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-04-12 10:21:05,803 WARN L250 erpolLogProxyWrapper]: Using partial proofs (cut at CNF-level). Set option :produce-proofs to true to get complete proofs. [2018-04-12 10:21:05,851 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-04-12 10:21:05,851 INFO L320 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2018-04-12 10:21:05,851 INFO L335 seRefinementStrategy]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2018-04-12 10:21:05,851 INFO L442 AbstractCegarLoop]: Interpolant automaton has 6 states [2018-04-12 10:21:05,851 INFO L132 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2018-04-12 10:21:05,852 INFO L133 InterpolantAutomaton]: CoverageRelationStatistics Valid=9, Invalid=21, Unknown=0, NotChecked=0, Total=30 [2018-04-12 10:21:05,852 INFO L87 Difference]: Start difference. First operand 124 states and 136 transitions. Second operand 6 states. [2018-04-12 10:21:05,884 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-04-12 10:21:05,884 INFO L93 Difference]: Finished difference Result 158 states and 167 transitions. [2018-04-12 10:21:05,884 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2018-04-12 10:21:05,884 INFO L78 Accepts]: Start accepts. Automaton has 6 states. Word has length 32 [2018-04-12 10:21:05,885 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-04-12 10:21:05,885 INFO L225 Difference]: With dead ends: 158 [2018-04-12 10:21:05,885 INFO L226 Difference]: Without dead ends: 158 [2018-04-12 10:21:05,886 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 [2018-04-12 10:21:05,886 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 158 states. [2018-04-12 10:21:05,893 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 158 to 151. [2018-04-12 10:21:05,893 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 151 states. [2018-04-12 10:21:05,894 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 151 states to 151 states and 161 transitions. [2018-04-12 10:21:05,894 INFO L78 Accepts]: Start accepts. Automaton has 151 states and 161 transitions. Word has length 32 [2018-04-12 10:21:05,894 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-04-12 10:21:05,894 INFO L459 AbstractCegarLoop]: Abstraction has 151 states and 161 transitions. [2018-04-12 10:21:05,895 INFO L460 AbstractCegarLoop]: Interpolant automaton has 6 states. [2018-04-12 10:21:05,895 INFO L276 IsEmpty]: Start isEmpty. Operand 151 states and 161 transitions. [2018-04-12 10:21:05,895 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 33 [2018-04-12 10:21:05,895 INFO L347 BasicCegarLoop]: Found error trace [2018-04-12 10:21:05,895 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] [2018-04-12 10:21:05,895 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]=== [2018-04-12 10:21:05,896 INFO L82 PathProgramCache]: Analyzing trace with hash 2068183309, now seen corresponding path program 1 times [2018-04-12 10:21:05,896 INFO L213 ckRefinementStrategy]: Switched to mode SMTINTERPOL_TREE_INTERPOLANTS [2018-04-12 10:21:05,896 INFO L68 tionRefinementEngine]: Using refinement strategy CamelRefinementStrategy [2018-04-12 10:21:05,896 INFO L119 rtionOrderModulation]: Craig nested/tree interpolation forces the following order [2018-04-12 10:21:05,896 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-04-12 10:21:05,896 INFO L119 rtionOrderModulation]: Craig nested/tree interpolation forces the following order [2018-04-12 10:21:05,909 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-04-12 10:21:05,910 WARN L250 erpolLogProxyWrapper]: Using partial proofs (cut at CNF-level). Set option :produce-proofs to true to get complete proofs. [2018-04-12 10:21:06,211 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-04-12 10:21:06,211 INFO L320 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2018-04-12 10:21:06,211 INFO L335 seRefinementStrategy]: Number of different interpolants: perfect sequences [17] imperfect sequences [] total 17 [2018-04-12 10:21:06,211 INFO L442 AbstractCegarLoop]: Interpolant automaton has 18 states [2018-04-12 10:21:06,212 INFO L132 InterpolantAutomaton]: Constructing interpolant automaton starting with 18 interpolants. [2018-04-12 10:21:06,212 INFO L133 InterpolantAutomaton]: CoverageRelationStatistics Valid=40, Invalid=266, Unknown=0, NotChecked=0, Total=306 [2018-04-12 10:21:06,212 INFO L87 Difference]: Start difference. First operand 151 states and 161 transitions. Second operand 18 states. [2018-04-12 10:21:06,835 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-04-12 10:21:06,835 INFO L93 Difference]: Finished difference Result 162 states and 174 transitions. [2018-04-12 10:21:06,835 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 19 states. [2018-04-12 10:21:06,835 INFO L78 Accepts]: Start accepts. Automaton has 18 states. Word has length 32 [2018-04-12 10:21:06,836 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-04-12 10:21:06,837 INFO L225 Difference]: With dead ends: 162 [2018-04-12 10:21:06,837 INFO L226 Difference]: Without dead ends: 162 [2018-04-12 10:21:06,838 INFO L567 BasicCegarLoop]: 0 DeclaredPredicates, 30 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 29 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 168 ImplicationChecksByTransitivity, 0.6s TimeCoverageRelationStatistics Valid=120, Invalid=810, Unknown=0, NotChecked=0, Total=930 [2018-04-12 10:21:06,838 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 162 states. [2018-04-12 10:21:06,842 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 162 to 160. [2018-04-12 10:21:06,842 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 160 states. [2018-04-12 10:21:06,843 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 160 states to 160 states and 172 transitions. [2018-04-12 10:21:06,843 INFO L78 Accepts]: Start accepts. Automaton has 160 states and 172 transitions. Word has length 32 [2018-04-12 10:21:06,843 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-04-12 10:21:06,844 INFO L459 AbstractCegarLoop]: Abstraction has 160 states and 172 transitions. [2018-04-12 10:21:06,844 INFO L460 AbstractCegarLoop]: Interpolant automaton has 18 states. [2018-04-12 10:21:06,844 INFO L276 IsEmpty]: Start isEmpty. Operand 160 states and 172 transitions. [2018-04-12 10:21:06,844 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 33 [2018-04-12 10:21:06,844 INFO L347 BasicCegarLoop]: Found error trace [2018-04-12 10:21:06,845 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] [2018-04-12 10:21:06,845 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]=== [2018-04-12 10:21:06,845 INFO L82 PathProgramCache]: Analyzing trace with hash -1483442203, now seen corresponding path program 1 times [2018-04-12 10:21:06,845 INFO L213 ckRefinementStrategy]: Switched to mode SMTINTERPOL_TREE_INTERPOLANTS [2018-04-12 10:21:06,845 INFO L68 tionRefinementEngine]: Using refinement strategy CamelRefinementStrategy [2018-04-12 10:21:06,846 INFO L119 rtionOrderModulation]: Craig nested/tree interpolation forces the following order [2018-04-12 10:21:06,846 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-04-12 10:21:06,846 INFO L119 rtionOrderModulation]: Craig nested/tree interpolation forces the following order [2018-04-12 10:21:06,858 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-04-12 10:21:06,859 WARN L250 erpolLogProxyWrapper]: Using partial proofs (cut at CNF-level). Set option :produce-proofs to true to get complete proofs. [2018-04-12 10:21:07,137 INFO L134 CoverageAnalysis]: Checked inductivity of 3 backedges. 0 proven. 3 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-04-12 10:21:07,138 INFO L308 seRefinementStrategy]: The current sequences of interpolants are not accepted, trying to find more. [2018-04-12 10:21:07,138 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 [2018-04-12 10:21:07,168 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-04-12 10:21:07,190 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-04-12 10:21:07,193 INFO L270 TraceCheckSpWp]: Computing forward predicates... [2018-04-12 10:21:07,196 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 [2018-04-12 10:21:07,196 INFO L267 ElimStorePlain]: Start of recursive call 2: End of recursive call: and 1 xjuncts. [2018-04-12 10:21:07,200 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 [2018-04-12 10:21:07,201 INFO L267 ElimStorePlain]: Start of recursive call 3: End of recursive call: and 1 xjuncts. [2018-04-12 10:21:07,204 INFO L267 ElimStorePlain]: Start of recursive call 1: 2 dim-1 vars, End of recursive call: and 1 xjuncts. [2018-04-12 10:21:07,204 INFO L202 ElimStorePlain]: Needed 3 recursive calls to eliminate 2 variables, input treesize:16, output treesize:14 [2018-04-12 10:21:07,255 INFO L700 Elim1Store]: detected not equals via solver [2018-04-12 10:21:07,256 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 [2018-04-12 10:21:07,257 INFO L267 ElimStorePlain]: Start of recursive call 2: End of recursive call: and 1 xjuncts. [2018-04-12 10:21:07,275 INFO L700 Elim1Store]: detected not equals via solver [2018-04-12 10:21:07,276 INFO L700 Elim1Store]: detected not equals via solver [2018-04-12 10:21:07,276 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 [2018-04-12 10:21:07,277 INFO L267 ElimStorePlain]: Start of recursive call 3: End of recursive call: and 1 xjuncts. [2018-04-12 10:21:07,280 INFO L267 ElimStorePlain]: Start of recursive call 1: 1 dim-0 vars, 2 dim-1 vars, End of recursive call: and 1 xjuncts. [2018-04-12 10:21:07,281 INFO L202 ElimStorePlain]: Needed 3 recursive calls to eliminate 3 variables, input treesize:25, output treesize:13 [2018-04-12 10:21:07,362 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 [2018-04-12 10:21:07,363 INFO L267 ElimStorePlain]: Start of recursive call 2: End of recursive call: and 2 xjuncts. [2018-04-12 10:21:07,370 INFO L267 ElimStorePlain]: Start of recursive call 1: 1 dim-1 vars, End of recursive call: and 2 xjuncts. [2018-04-12 10:21:07,370 INFO L202 ElimStorePlain]: Needed 2 recursive calls to eliminate 1 variables, input treesize:15, output treesize:27 [2018-04-12 10:21:07,428 INFO L477 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 28 treesize of output 25 [2018-04-12 10:21:07,429 INFO L477 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 8 treesize of output 7 [2018-04-12 10:21:07,430 INFO L267 ElimStorePlain]: Start of recursive call 3: End of recursive call: and 1 xjuncts. [2018-04-12 10:21:07,433 INFO L267 ElimStorePlain]: Start of recursive call 2: 1 dim-1 vars, End of recursive call: and 1 xjuncts. [2018-04-12 10:21:07,448 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 [2018-04-12 10:21:07,449 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 [2018-04-12 10:21:07,449 INFO L267 ElimStorePlain]: Start of recursive call 5: End of recursive call: and 1 xjuncts. [2018-04-12 10:21:07,452 INFO L267 ElimStorePlain]: Start of recursive call 4: 1 dim-1 vars, End of recursive call: and 1 xjuncts. [2018-04-12 10:21:07,465 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 [2018-04-12 10:21:07,467 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 [2018-04-12 10:21:07,467 INFO L267 ElimStorePlain]: Start of recursive call 7: End of recursive call: and 1 xjuncts. [2018-04-12 10:21:07,472 INFO L267 ElimStorePlain]: Start of recursive call 6: 1 dim-1 vars, End of recursive call: and 1 xjuncts. [2018-04-12 10:21:07,484 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 [2018-04-12 10:21:07,485 INFO L477 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 0 select indices, 0 select index equivalence classes, 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 [2018-04-12 10:21:07,485 INFO L267 ElimStorePlain]: Start of recursive call 9: End of recursive call: and 1 xjuncts. [2018-04-12 10:21:07,490 INFO L267 ElimStorePlain]: Start of recursive call 8: 1 dim-1 vars, End of recursive call: and 1 xjuncts. [2018-04-12 10:21:07,499 INFO L267 ElimStorePlain]: Start of recursive call 1: 1 dim-0 vars, 4 dim-2 vars, End of recursive call: and 2 xjuncts. [2018-04-12 10:21:07,500 INFO L202 ElimStorePlain]: Needed 9 recursive calls to eliminate 5 variables, input treesize:62, output treesize:43 [2018-04-12 10:21:07,560 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 [2018-04-12 10:21:07,562 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 [2018-04-12 10:21:07,562 INFO L267 ElimStorePlain]: Start of recursive call 3: End of recursive call: and 1 xjuncts. [2018-04-12 10:21:07,571 INFO L267 ElimStorePlain]: Start of recursive call 2: 1 dim-1 vars, End of recursive call: and 1 xjuncts. [2018-04-12 10:21:07,606 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 [2018-04-12 10:21:07,608 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 [2018-04-12 10:21:07,608 INFO L267 ElimStorePlain]: Start of recursive call 5: End of recursive call: and 1 xjuncts. [2018-04-12 10:21:07,611 INFO L267 ElimStorePlain]: Start of recursive call 4: 1 dim-1 vars, End of recursive call: and 1 xjuncts. [2018-04-12 10:21:07,620 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 [2018-04-12 10:21:07,623 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 [2018-04-12 10:21:07,623 INFO L267 ElimStorePlain]: Start of recursive call 7: End of recursive call: and 1 xjuncts. [2018-04-12 10:21:07,626 INFO L267 ElimStorePlain]: Start of recursive call 6: 1 dim-1 vars, End of recursive call: and 1 xjuncts. [2018-04-12 10:21:07,635 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 [2018-04-12 10:21:07,638 INFO L477 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 11 treesize of output 3 [2018-04-12 10:21:07,638 INFO L267 ElimStorePlain]: Start of recursive call 9: End of recursive call: and 1 xjuncts. [2018-04-12 10:21:07,641 INFO L267 ElimStorePlain]: Start of recursive call 8: 1 dim-1 vars, End of recursive call: and 1 xjuncts. [2018-04-12 10:21:07,648 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. [2018-04-12 10:21:07,648 INFO L202 ElimStorePlain]: Needed 9 recursive calls to eliminate 8 variables, input treesize:71, output treesize:24 [2018-04-12 10:21:07,943 INFO L134 CoverageAnalysis]: Checked inductivity of 3 backedges. 0 proven. 3 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-04-12 10:21:07,970 INFO L320 seRefinementStrategy]: Constructing automaton from 0 perfect and 2 imperfect interpolant sequences. [2018-04-12 10:21:07,970 INFO L335 seRefinementStrategy]: Number of different interpolants: perfect sequences [] imperfect sequences [18, 16] total 33 [2018-04-12 10:21:07,971 INFO L442 AbstractCegarLoop]: Interpolant automaton has 34 states [2018-04-12 10:21:07,971 INFO L132 InterpolantAutomaton]: Constructing interpolant automaton starting with 34 interpolants. [2018-04-12 10:21:07,971 INFO L133 InterpolantAutomaton]: CoverageRelationStatistics Valid=82, Invalid=1040, Unknown=0, NotChecked=0, Total=1122 [2018-04-12 10:21:07,971 INFO L87 Difference]: Start difference. First operand 160 states and 172 transitions. Second operand 34 states. [2018-04-12 10:21:08,763 WARN L151 SmtUtils]: Spent 164ms on a formula simplification. DAG size of input: 69 DAG size of output 50 [2018-04-12 10:21:09,547 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-04-12 10:21:09,547 INFO L93 Difference]: Finished difference Result 162 states and 175 transitions. [2018-04-12 10:21:09,548 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 22 states. [2018-04-12 10:21:09,548 INFO L78 Accepts]: Start accepts. Automaton has 34 states. Word has length 32 [2018-04-12 10:21:09,548 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-04-12 10:21:09,549 INFO L225 Difference]: With dead ends: 162 [2018-04-12 10:21:09,549 INFO L226 Difference]: Without dead ends: 162 [2018-04-12 10:21:09,550 INFO L567 BasicCegarLoop]: 0 DeclaredPredicates, 67 GetRequests, 17 SyntacticMatches, 1 SemanticMatches, 49 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 420 ImplicationChecksByTransitivity, 1.8s TimeCoverageRelationStatistics Valid=237, Invalid=2313, Unknown=0, NotChecked=0, Total=2550 [2018-04-12 10:21:09,550 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 162 states. [2018-04-12 10:21:09,552 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 162 to 161. [2018-04-12 10:21:09,553 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 161 states. [2018-04-12 10:21:09,553 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 161 states to 161 states and 173 transitions. [2018-04-12 10:21:09,553 INFO L78 Accepts]: Start accepts. Automaton has 161 states and 173 transitions. Word has length 32 [2018-04-12 10:21:09,554 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-04-12 10:21:09,554 INFO L459 AbstractCegarLoop]: Abstraction has 161 states and 173 transitions. [2018-04-12 10:21:09,554 INFO L460 AbstractCegarLoop]: Interpolant automaton has 34 states. [2018-04-12 10:21:09,554 INFO L276 IsEmpty]: Start isEmpty. Operand 161 states and 173 transitions. [2018-04-12 10:21:09,554 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 38 [2018-04-12 10:21:09,554 INFO L347 BasicCegarLoop]: Found error trace [2018-04-12 10:21:09,554 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] [2018-04-12 10:21:09,555 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]=== [2018-04-12 10:21:09,555 INFO L82 PathProgramCache]: Analyzing trace with hash -972656883, now seen corresponding path program 1 times [2018-04-12 10:21:09,555 INFO L213 ckRefinementStrategy]: Switched to mode SMTINTERPOL_TREE_INTERPOLANTS [2018-04-12 10:21:09,555 INFO L68 tionRefinementEngine]: Using refinement strategy CamelRefinementStrategy [2018-04-12 10:21:09,555 INFO L119 rtionOrderModulation]: Craig nested/tree interpolation forces the following order [2018-04-12 10:21:09,556 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-04-12 10:21:09,556 INFO L119 rtionOrderModulation]: Craig nested/tree interpolation forces the following order [2018-04-12 10:21:09,569 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-04-12 10:21:09,569 WARN L250 erpolLogProxyWrapper]: Using partial proofs (cut at CNF-level). Set option :produce-proofs to true to get complete proofs. [2018-04-12 10:21:09,934 INFO L134 CoverageAnalysis]: Checked inductivity of 4 backedges. 0 proven. 4 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-04-12 10:21:09,934 INFO L308 seRefinementStrategy]: The current sequences of interpolants are not accepted, trying to find more. [2018-04-12 10:21:09,934 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 [2018-04-12 10:21:09,939 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-04-12 10:21:09,961 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-04-12 10:21:09,964 INFO L270 TraceCheckSpWp]: Computing forward predicates... [2018-04-12 10:21:09,967 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 [2018-04-12 10:21:09,967 INFO L267 ElimStorePlain]: Start of recursive call 2: End of recursive call: and 1 xjuncts. [2018-04-12 10:21:09,970 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 [2018-04-12 10:21:09,970 INFO L267 ElimStorePlain]: Start of recursive call 3: End of recursive call: and 1 xjuncts. [2018-04-12 10:21:09,972 INFO L267 ElimStorePlain]: Start of recursive call 1: 2 dim-1 vars, End of recursive call: and 1 xjuncts. [2018-04-12 10:21:09,973 INFO L202 ElimStorePlain]: Needed 3 recursive calls to eliminate 2 variables, input treesize:16, output treesize:14 [2018-04-12 10:21:09,977 INFO L700 Elim1Store]: detected not equals via solver [2018-04-12 10:21:09,978 INFO L700 Elim1Store]: detected not equals via solver [2018-04-12 10:21:09,978 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 [2018-04-12 10:21:09,979 INFO L267 ElimStorePlain]: Start of recursive call 2: End of recursive call: and 1 xjuncts. [2018-04-12 10:21:09,987 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 [2018-04-12 10:21:09,988 INFO L267 ElimStorePlain]: Start of recursive call 3: End of recursive call: and 1 xjuncts. [2018-04-12 10:21:09,994 INFO L267 ElimStorePlain]: Start of recursive call 1: 1 dim-0 vars, 2 dim-1 vars, End of recursive call: and 1 xjuncts. [2018-04-12 10:21:09,994 INFO L202 ElimStorePlain]: Needed 3 recursive calls to eliminate 3 variables, input treesize:31, output treesize:23 [2018-04-12 10:21:10,112 INFO L700 Elim1Store]: detected not equals via solver [2018-04-12 10:21:10,112 INFO L700 Elim1Store]: detected not equals via solver [2018-04-12 10:21:10,113 INFO L700 Elim1Store]: detected not equals via solver [2018-04-12 10:21:10,114 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 [2018-04-12 10:21:10,114 INFO L267 ElimStorePlain]: Start of recursive call 2: End of recursive call: and 1 xjuncts. [2018-04-12 10:21:10,129 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 [2018-04-12 10:21:10,129 INFO L267 ElimStorePlain]: Start of recursive call 3: End of recursive call: and 1 xjuncts. [2018-04-12 10:21:10,137 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. [2018-04-12 10:21:10,137 INFO L202 ElimStorePlain]: Needed 3 recursive calls to eliminate 3 variables, input treesize:40, output treesize:41 [2018-04-12 10:21:10,171 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 [2018-04-12 10:21:10,172 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 [2018-04-12 10:21:10,173 INFO L267 ElimStorePlain]: Start of recursive call 3: End of recursive call: and 1 xjuncts. [2018-04-12 10:21:10,174 INFO L267 ElimStorePlain]: Start of recursive call 2: 1 dim-1 vars, End of recursive call: and 1 xjuncts. [2018-04-12 10:21:10,186 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 [2018-04-12 10:21:10,188 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 [2018-04-12 10:21:10,188 INFO L267 ElimStorePlain]: Start of recursive call 5: End of recursive call: and 1 xjuncts. [2018-04-12 10:21:10,189 INFO L267 ElimStorePlain]: Start of recursive call 4: 1 dim-1 vars, End of recursive call: and 1 xjuncts. [2018-04-12 10:21:10,208 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. [2018-04-12 10:21:10,208 INFO L202 ElimStorePlain]: Needed 5 recursive calls to eliminate 4 variables, input treesize:60, output treesize:61 [2018-04-12 10:21:10,369 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 [2018-04-12 10:21:10,384 INFO L477 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 1 select indices, 1 select index equivalence classes, 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 [2018-04-12 10:21:10,384 INFO L267 ElimStorePlain]: Start of recursive call 3: End of recursive call: and 1 xjuncts. [2018-04-12 10:21:10,389 INFO L267 ElimStorePlain]: Start of recursive call 2: 1 dim-1 vars, End of recursive call: and 1 xjuncts. [2018-04-12 10:21:10,400 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 [2018-04-12 10:21:10,402 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 [2018-04-12 10:21:10,402 INFO L267 ElimStorePlain]: Start of recursive call 5: End of recursive call: and 1 xjuncts. [2018-04-12 10:21:10,403 INFO L267 ElimStorePlain]: Start of recursive call 4: 1 dim-1 vars, End of recursive call: and 1 xjuncts. [2018-04-12 10:21:10,415 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. [2018-04-12 10:21:10,416 INFO L202 ElimStorePlain]: Needed 5 recursive calls to eliminate 5 variables, input treesize:75, output treesize:41 [2018-04-12 10:21:10,628 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 [2018-04-12 10:21:10,628 INFO L267 ElimStorePlain]: Start of recursive call 2: End of recursive call: and 1 xjuncts. [2018-04-12 10:21:10,635 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. [2018-04-12 10:21:10,636 INFO L202 ElimStorePlain]: Needed 2 recursive calls to eliminate 3 variables, input treesize:41, output treesize:18 [2018-04-12 10:21:10,845 INFO L134 CoverageAnalysis]: Checked inductivity of 4 backedges. 0 proven. 4 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-04-12 10:21:10,863 INFO L320 seRefinementStrategy]: Constructing automaton from 0 perfect and 2 imperfect interpolant sequences. [2018-04-12 10:21:10,863 INFO L335 seRefinementStrategy]: Number of different interpolants: perfect sequences [] imperfect sequences [19, 19] total 35 [2018-04-12 10:21:10,863 INFO L442 AbstractCegarLoop]: Interpolant automaton has 36 states [2018-04-12 10:21:10,864 INFO L132 InterpolantAutomaton]: Constructing interpolant automaton starting with 36 interpolants. [2018-04-12 10:21:10,864 INFO L133 InterpolantAutomaton]: CoverageRelationStatistics Valid=101, Invalid=1159, Unknown=0, NotChecked=0, Total=1260 [2018-04-12 10:21:10,864 INFO L87 Difference]: Start difference. First operand 161 states and 173 transitions. Second operand 36 states. [2018-04-12 10:21:12,862 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-04-12 10:21:12,862 INFO L93 Difference]: Finished difference Result 218 states and 236 transitions. [2018-04-12 10:21:12,862 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 41 states. [2018-04-12 10:21:12,862 INFO L78 Accepts]: Start accepts. Automaton has 36 states. Word has length 37 [2018-04-12 10:21:12,862 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-04-12 10:21:12,863 INFO L225 Difference]: With dead ends: 218 [2018-04-12 10:21:12,863 INFO L226 Difference]: Without dead ends: 218 [2018-04-12 10:21:12,864 INFO L567 BasicCegarLoop]: 0 DeclaredPredicates, 89 GetRequests, 19 SyntacticMatches, 2 SemanticMatches, 68 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1139 ImplicationChecksByTransitivity, 2.4s TimeCoverageRelationStatistics Valid=469, Invalid=4361, Unknown=0, NotChecked=0, Total=4830 [2018-04-12 10:21:12,864 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 218 states. [2018-04-12 10:21:12,866 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 218 to 169. [2018-04-12 10:21:12,866 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 169 states. [2018-04-12 10:21:12,867 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 169 states to 169 states and 183 transitions. [2018-04-12 10:21:12,867 INFO L78 Accepts]: Start accepts. Automaton has 169 states and 183 transitions. Word has length 37 [2018-04-12 10:21:12,867 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-04-12 10:21:12,867 INFO L459 AbstractCegarLoop]: Abstraction has 169 states and 183 transitions. [2018-04-12 10:21:12,867 INFO L460 AbstractCegarLoop]: Interpolant automaton has 36 states. [2018-04-12 10:21:12,867 INFO L276 IsEmpty]: Start isEmpty. Operand 169 states and 183 transitions. [2018-04-12 10:21:12,867 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 38 [2018-04-12 10:21:12,868 INFO L347 BasicCegarLoop]: Found error trace [2018-04-12 10:21:12,868 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] [2018-04-12 10:21:12,868 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]=== [2018-04-12 10:21:12,868 INFO L82 PathProgramCache]: Analyzing trace with hash -1912838307, now seen corresponding path program 2 times [2018-04-12 10:21:12,868 INFO L213 ckRefinementStrategy]: Switched to mode SMTINTERPOL_TREE_INTERPOLANTS [2018-04-12 10:21:12,868 INFO L68 tionRefinementEngine]: Using refinement strategy CamelRefinementStrategy [2018-04-12 10:21:12,868 INFO L119 rtionOrderModulation]: Craig nested/tree interpolation forces the following order [2018-04-12 10:21:12,868 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-04-12 10:21:12,868 INFO L119 rtionOrderModulation]: Craig nested/tree interpolation forces the following order [2018-04-12 10:21:12,881 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-04-12 10:21:12,881 WARN L250 erpolLogProxyWrapper]: Using partial proofs (cut at CNF-level). Set option :produce-proofs to true to get complete proofs. [2018-04-12 10:21:13,228 INFO L134 CoverageAnalysis]: Checked inductivity of 10 backedges. 0 proven. 10 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-04-12 10:21:13,228 INFO L308 seRefinementStrategy]: The current sequences of interpolants are not accepted, trying to find more. [2018-04-12 10:21:13,228 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 [2018-04-12 10:21:13,233 INFO L103 rtionOrderModulation]: Keeping assertion order OUTSIDE_LOOP_FIRST1 [2018-04-12 10:21:13,254 INFO L242 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST1 issued 2 check-sat command(s) [2018-04-12 10:21:13,254 INFO L243 tOrderPrioritization]: Conjunction of SSA is unsat [2018-04-12 10:21:13,257 INFO L270 TraceCheckSpWp]: Computing forward predicates... [2018-04-12 10:21:13,260 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 [2018-04-12 10:21:13,260 INFO L267 ElimStorePlain]: Start of recursive call 2: End of recursive call: and 1 xjuncts. [2018-04-12 10:21:13,267 INFO L267 ElimStorePlain]: Start of recursive call 1: 1 dim-1 vars, End of recursive call: and 1 xjuncts. [2018-04-12 10:21:13,267 INFO L202 ElimStorePlain]: Needed 2 recursive calls to eliminate 1 variables, input treesize:6, output treesize:5 [2018-04-12 10:21:13,272 INFO L477 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 6 treesize of output 5 [2018-04-12 10:21:13,272 INFO L267 ElimStorePlain]: Start of recursive call 2: End of recursive call: and 1 xjuncts. [2018-04-12 10:21:13,280 INFO L700 Elim1Store]: detected not equals via solver [2018-04-12 10:21:13,280 INFO L700 Elim1Store]: detected not equals via solver [2018-04-12 10:21:13,281 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 [2018-04-12 10:21:13,281 INFO L267 ElimStorePlain]: Start of recursive call 3: End of recursive call: and 1 xjuncts. [2018-04-12 10:21:13,284 INFO L267 ElimStorePlain]: Start of recursive call 1: 2 dim-1 vars, End of recursive call: and 1 xjuncts. [2018-04-12 10:21:13,284 INFO L202 ElimStorePlain]: Needed 3 recursive calls to eliminate 2 variables, input treesize:20, output treesize:13 [2018-04-12 10:21:13,324 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 [2018-04-12 10:21:13,325 INFO L477 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 13 treesize of output 12 [2018-04-12 10:21:13,325 INFO L267 ElimStorePlain]: Start of recursive call 3: End of recursive call: and 1 xjuncts. [2018-04-12 10:21:13,326 INFO L267 ElimStorePlain]: Start of recursive call 2: 1 dim-1 vars, End of recursive call: and 1 xjuncts. [2018-04-12 10:21:13,330 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. [2018-04-12 10:21:13,331 INFO L202 ElimStorePlain]: Needed 3 recursive calls to eliminate 2 variables, input treesize:32, output treesize:28 [2018-04-12 10:21:13,378 INFO L700 Elim1Store]: detected not equals via solver [2018-04-12 10:21:13,379 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 [2018-04-12 10:21:13,379 INFO L267 ElimStorePlain]: Start of recursive call 2: End of recursive call: and 1 xjuncts. [2018-04-12 10:21:13,387 INFO L700 Elim1Store]: detected not equals via solver [2018-04-12 10:21:13,388 INFO L700 Elim1Store]: detected not equals via solver [2018-04-12 10:21:13,388 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 [2018-04-12 10:21:13,388 INFO L267 ElimStorePlain]: Start of recursive call 3: End of recursive call: and 1 xjuncts. [2018-04-12 10:21:13,393 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. [2018-04-12 10:21:13,394 INFO L202 ElimStorePlain]: Needed 3 recursive calls to eliminate 3 variables, input treesize:39, output treesize:32 [2018-04-12 10:21:13,423 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 [2018-04-12 10:21:13,424 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 [2018-04-12 10:21:13,424 INFO L267 ElimStorePlain]: Start of recursive call 3: End of recursive call: and 1 xjuncts. [2018-04-12 10:21:13,425 INFO L267 ElimStorePlain]: Start of recursive call 2: 1 dim-1 vars, End of recursive call: and 1 xjuncts. [2018-04-12 10:21:13,431 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. [2018-04-12 10:21:13,432 INFO L202 ElimStorePlain]: Needed 3 recursive calls to eliminate 3 variables, input treesize:43, output treesize:36 [2018-04-12 10:21:13,494 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 [2018-04-12 10:21:13,496 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 [2018-04-12 10:21:13,496 INFO L267 ElimStorePlain]: Start of recursive call 3: End of recursive call: and 1 xjuncts. [2018-04-12 10:21:13,497 INFO L267 ElimStorePlain]: Start of recursive call 2: 1 dim-1 vars, End of recursive call: and 1 xjuncts. [2018-04-12 10:21:13,502 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. [2018-04-12 10:21:13,502 INFO L202 ElimStorePlain]: Needed 3 recursive calls to eliminate 4 variables, input treesize:43, output treesize:32 [2018-04-12 10:21:13,653 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 [2018-04-12 10:21:13,654 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 [2018-04-12 10:21:13,655 INFO L267 ElimStorePlain]: Start of recursive call 3: End of recursive call: and 1 xjuncts. [2018-04-12 10:21:13,658 INFO L267 ElimStorePlain]: Start of recursive call 2: 1 dim-1 vars, End of recursive call: and 1 xjuncts. [2018-04-12 10:21:13,665 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. [2018-04-12 10:21:13,665 INFO L202 ElimStorePlain]: Needed 3 recursive calls to eliminate 6 variables, input treesize:46, output treesize:31 [2018-04-12 10:21:13,747 INFO L477 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 0 stores, 1 select indices, 1 select index equivalence classes, 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 [2018-04-12 10:21:13,752 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 [2018-04-12 10:21:13,752 INFO L267 ElimStorePlain]: Start of recursive call 3: End of recursive call: and 2 xjuncts. [2018-04-12 10:21:13,755 INFO L267 ElimStorePlain]: Start of recursive call 2: 1 dim-1 vars, End of recursive call: and 2 xjuncts. [2018-04-12 10:21:13,763 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. [2018-04-12 10:21:13,763 INFO L202 ElimStorePlain]: Needed 3 recursive calls to eliminate 3 variables, input treesize:45, output treesize:55 [2018-04-12 10:21:13,887 INFO L134 CoverageAnalysis]: Checked inductivity of 10 backedges. 0 proven. 10 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-04-12 10:21:13,905 INFO L320 seRefinementStrategy]: Constructing automaton from 0 perfect and 2 imperfect interpolant sequences. [2018-04-12 10:21:13,905 INFO L335 seRefinementStrategy]: Number of different interpolants: perfect sequences [] imperfect sequences [20, 19] total 36 [2018-04-12 10:21:13,905 INFO L442 AbstractCegarLoop]: Interpolant automaton has 37 states [2018-04-12 10:21:13,906 INFO L132 InterpolantAutomaton]: Constructing interpolant automaton starting with 37 interpolants. [2018-04-12 10:21:13,906 INFO L133 InterpolantAutomaton]: CoverageRelationStatistics Valid=86, Invalid=1246, Unknown=0, NotChecked=0, Total=1332 [2018-04-12 10:21:13,906 INFO L87 Difference]: Start difference. First operand 169 states and 183 transitions. Second operand 37 states. [2018-04-12 10:21:15,617 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-04-12 10:21:15,617 INFO L93 Difference]: Finished difference Result 180 states and 194 transitions. [2018-04-12 10:21:15,617 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 23 states. [2018-04-12 10:21:15,617 INFO L78 Accepts]: Start accepts. Automaton has 37 states. Word has length 37 [2018-04-12 10:21:15,617 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-04-12 10:21:15,618 INFO L225 Difference]: With dead ends: 180 [2018-04-12 10:21:15,618 INFO L226 Difference]: Without dead ends: 180 [2018-04-12 10:21:15,618 INFO L567 BasicCegarLoop]: 0 DeclaredPredicates, 76 GetRequests, 20 SyntacticMatches, 1 SemanticMatches, 55 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 416 ImplicationChecksByTransitivity, 1.9s TimeCoverageRelationStatistics Valid=291, Invalid=2901, Unknown=0, NotChecked=0, Total=3192 [2018-04-12 10:21:15,619 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 180 states. [2018-04-12 10:21:15,620 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 180 to 168. [2018-04-12 10:21:15,620 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 168 states. [2018-04-12 10:21:15,621 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 168 states to 168 states and 182 transitions. [2018-04-12 10:21:15,621 INFO L78 Accepts]: Start accepts. Automaton has 168 states and 182 transitions. Word has length 37 [2018-04-12 10:21:15,621 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-04-12 10:21:15,621 INFO L459 AbstractCegarLoop]: Abstraction has 168 states and 182 transitions. [2018-04-12 10:21:15,621 INFO L460 AbstractCegarLoop]: Interpolant automaton has 37 states. [2018-04-12 10:21:15,621 INFO L276 IsEmpty]: Start isEmpty. Operand 168 states and 182 transitions. [2018-04-12 10:21:15,621 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 39 [2018-04-12 10:21:15,621 INFO L347 BasicCegarLoop]: Found error trace [2018-04-12 10:21:15,621 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] [2018-04-12 10:21:15,621 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]=== [2018-04-12 10:21:15,622 INFO L82 PathProgramCache]: Analyzing trace with hash 150252457, now seen corresponding path program 1 times [2018-04-12 10:21:15,622 INFO L213 ckRefinementStrategy]: Switched to mode SMTINTERPOL_TREE_INTERPOLANTS [2018-04-12 10:21:15,622 INFO L68 tionRefinementEngine]: Using refinement strategy CamelRefinementStrategy [2018-04-12 10:21:15,622 INFO L119 rtionOrderModulation]: Craig nested/tree interpolation forces the following order [2018-04-12 10:21:15,622 INFO L101 rtionOrderModulation]: Changing assertion order to NOT_INCREMENTALLY [2018-04-12 10:21:15,622 INFO L119 rtionOrderModulation]: Craig nested/tree interpolation forces the following order [2018-04-12 10:21:15,635 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-04-12 10:21:15,636 WARN L250 erpolLogProxyWrapper]: Using partial proofs (cut at CNF-level). Set option :produce-proofs to true to get complete proofs. [2018-04-12 10:21:16,126 INFO L134 CoverageAnalysis]: Checked inductivity of 4 backedges. 0 proven. 4 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-04-12 10:21:16,126 INFO L308 seRefinementStrategy]: The current sequences of interpolants are not accepted, trying to find more. [2018-04-12 10:21:16,126 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 [2018-04-12 10:21:16,133 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-04-12 10:21:16,156 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-04-12 10:21:16,160 INFO L270 TraceCheckSpWp]: Computing forward predicates... [2018-04-12 10:21:16,167 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 [2018-04-12 10:21:16,167 INFO L267 ElimStorePlain]: Start of recursive call 2: End of recursive call: and 1 xjuncts. [2018-04-12 10:21:16,171 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 [2018-04-12 10:21:16,171 INFO L267 ElimStorePlain]: Start of recursive call 3: End of recursive call: and 1 xjuncts. [2018-04-12 10:21:16,174 INFO L267 ElimStorePlain]: Start of recursive call 1: 2 dim-1 vars, End of recursive call: and 1 xjuncts. [2018-04-12 10:21:16,174 INFO L202 ElimStorePlain]: Needed 3 recursive calls to eliminate 2 variables, input treesize:16, output treesize:14 [2018-04-12 10:21:16,181 INFO L700 Elim1Store]: detected not equals via solver [2018-04-12 10:21:16,182 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 [2018-04-12 10:21:16,182 INFO L267 ElimStorePlain]: Start of recursive call 2: End of recursive call: and 1 xjuncts. [2018-04-12 10:21:16,189 INFO L700 Elim1Store]: detected not equals via solver [2018-04-12 10:21:16,190 INFO L700 Elim1Store]: detected not equals via solver [2018-04-12 10:21:16,190 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 [2018-04-12 10:21:16,190 INFO L267 ElimStorePlain]: Start of recursive call 3: End of recursive call: and 1 xjuncts. [2018-04-12 10:21:16,195 INFO L267 ElimStorePlain]: Start of recursive call 1: 1 dim-0 vars, 2 dim-1 vars, End of recursive call: and 1 xjuncts. [2018-04-12 10:21:16,195 INFO L202 ElimStorePlain]: Needed 3 recursive calls to eliminate 3 variables, input treesize:25, output treesize:13 [2018-04-12 10:21:16,226 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 [2018-04-12 10:21:16,226 INFO L267 ElimStorePlain]: Start of recursive call 2: End of recursive call: and 2 xjuncts. [2018-04-12 10:21:16,235 INFO L267 ElimStorePlain]: Start of recursive call 1: 1 dim-1 vars, End of recursive call: and 2 xjuncts. [2018-04-12 10:21:16,236 INFO L202 ElimStorePlain]: Needed 2 recursive calls to eliminate 1 variables, input treesize:20, output treesize:32 [2018-04-12 10:21:16,273 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 [2018-04-12 10:21:16,276 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 [2018-04-12 10:21:16,276 INFO L267 ElimStorePlain]: Start of recursive call 3: End of recursive call: and 1 xjuncts. [2018-04-12 10:21:16,281 INFO L267 ElimStorePlain]: Start of recursive call 2: 1 dim-1 vars, End of recursive call: and 1 xjuncts. [2018-04-12 10:21:16,300 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 [2018-04-12 10:21:16,303 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 [2018-04-12 10:21:16,304 INFO L267 ElimStorePlain]: Start of recursive call 5: End of recursive call: and 1 xjuncts. [2018-04-12 10:21:16,310 INFO L267 ElimStorePlain]: Start of recursive call 4: 1 dim-1 vars, End of recursive call: and 1 xjuncts. [2018-04-12 10:21:16,325 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 [2018-04-12 10:21:16,326 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 [2018-04-12 10:21:16,327 INFO L267 ElimStorePlain]: Start of recursive call 7: End of recursive call: and 1 xjuncts. [2018-04-12 10:21:16,333 INFO L267 ElimStorePlain]: Start of recursive call 6: 1 dim-1 vars, End of recursive call: and 1 xjuncts. [2018-04-12 10:21:16,347 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 [2018-04-12 10:21:16,348 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 [2018-04-12 10:21:16,348 INFO L267 ElimStorePlain]: Start of recursive call 9: End of recursive call: and 1 xjuncts. [2018-04-12 10:21:16,351 INFO L267 ElimStorePlain]: Start of recursive call 8: 1 dim-1 vars, End of recursive call: and 1 xjuncts. [2018-04-12 10:21:16,362 INFO L267 ElimStorePlain]: Start of recursive call 1: 1 dim-0 vars, 4 dim-2 vars, End of recursive call: and 2 xjuncts. [2018-04-12 10:21:16,363 INFO L202 ElimStorePlain]: Needed 9 recursive calls to eliminate 5 variables, input treesize:67, output treesize:52 [2018-04-12 10:21:16,434 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 [2018-04-12 10:21:16,436 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 [2018-04-12 10:21:16,436 INFO L267 ElimStorePlain]: Start of recursive call 3: End of recursive call: and 1 xjuncts. [2018-04-12 10:21:16,440 INFO L267 ElimStorePlain]: Start of recursive call 2: 1 dim-1 vars, End of recursive call: and 1 xjuncts. [2018-04-12 10:21:16,451 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 [2018-04-12 10:21:16,452 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 [2018-04-12 10:21:16,452 INFO L267 ElimStorePlain]: Start of recursive call 5: End of recursive call: and 1 xjuncts. [2018-04-12 10:21:16,455 INFO L267 ElimStorePlain]: Start of recursive call 4: 1 dim-1 vars, End of recursive call: and 1 xjuncts. [2018-04-12 10:21:16,465 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 [2018-04-12 10:21:16,466 INFO L477 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 11 treesize of output 3 [2018-04-12 10:21:16,466 INFO L267 ElimStorePlain]: Start of recursive call 7: End of recursive call: and 1 xjuncts. [2018-04-12 10:21:16,470 INFO L267 ElimStorePlain]: Start of recursive call 6: 1 dim-1 vars, End of recursive call: and 1 xjuncts. [2018-04-12 10:21:16,479 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 [2018-04-12 10:21:16,480 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 [2018-04-12 10:21:16,480 INFO L267 ElimStorePlain]: Start of recursive call 9: End of recursive call: and 1 xjuncts. [2018-04-12 10:21:16,483 INFO L267 ElimStorePlain]: Start of recursive call 8: 1 dim-1 vars, End of recursive call: and 1 xjuncts. [2018-04-12 10:21:16,490 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. [2018-04-12 10:21:16,490 INFO L202 ElimStorePlain]: Needed 9 recursive calls to eliminate 8 variables, input treesize:80, output treesize:29 [2018-04-12 10:21:16,881 INFO L134 CoverageAnalysis]: Checked inductivity of 4 backedges. 0 proven. 4 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-04-12 10:21:16,914 INFO L320 seRefinementStrategy]: Constructing automaton from 0 perfect and 2 imperfect interpolant sequences. [2018-04-12 10:21:16,914 INFO L335 seRefinementStrategy]: Number of different interpolants: perfect sequences [] imperfect sequences [19, 18] total 32 [2018-04-12 10:21:16,914 INFO L442 AbstractCegarLoop]: Interpolant automaton has 33 states [2018-04-12 10:21:16,914 INFO L132 InterpolantAutomaton]: Constructing interpolant automaton starting with 33 interpolants. [2018-04-12 10:21:16,915 INFO L133 InterpolantAutomaton]: CoverageRelationStatistics Valid=80, Invalid=976, Unknown=0, NotChecked=0, Total=1056 [2018-04-12 10:21:16,915 INFO L87 Difference]: Start difference. First operand 168 states and 182 transitions. Second operand 33 states. [2018-04-12 10:21:18,505 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-04-12 10:21:18,506 INFO L93 Difference]: Finished difference Result 187 states and 202 transitions. [2018-04-12 10:21:18,506 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 25 states. [2018-04-12 10:21:18,506 INFO L78 Accepts]: Start accepts. Automaton has 33 states. Word has length 38 [2018-04-12 10:21:18,506 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-04-12 10:21:18,507 INFO L225 Difference]: With dead ends: 187 [2018-04-12 10:21:18,507 INFO L226 Difference]: Without dead ends: 187 [2018-04-12 10:21:18,507 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 [2018-04-12 10:21:18,507 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 187 states. [2018-04-12 10:21:18,509 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 187 to 168. [2018-04-12 10:21:18,509 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 168 states. [2018-04-12 10:21:18,510 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 168 states to 168 states and 181 transitions. [2018-04-12 10:21:18,510 INFO L78 Accepts]: Start accepts. Automaton has 168 states and 181 transitions. Word has length 38 [2018-04-12 10:21:18,510 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-04-12 10:21:18,510 INFO L459 AbstractCegarLoop]: Abstraction has 168 states and 181 transitions. [2018-04-12 10:21:18,510 INFO L460 AbstractCegarLoop]: Interpolant automaton has 33 states. [2018-04-12 10:21:18,510 INFO L276 IsEmpty]: Start isEmpty. Operand 168 states and 181 transitions. [2018-04-12 10:21:18,510 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 39 [2018-04-12 10:21:18,510 INFO L347 BasicCegarLoop]: Found error trace [2018-04-12 10:21:18,510 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] [2018-04-12 10:21:18,510 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]=== [2018-04-12 10:21:18,511 INFO L82 PathProgramCache]: Analyzing trace with hash 831554627, now seen corresponding path program 2 times [2018-04-12 10:21:18,511 INFO L213 ckRefinementStrategy]: Switched to mode SMTINTERPOL_TREE_INTERPOLANTS [2018-04-12 10:21:18,511 INFO L68 tionRefinementEngine]: Using refinement strategy CamelRefinementStrategy [2018-04-12 10:21:18,511 INFO L119 rtionOrderModulation]: Craig nested/tree interpolation forces the following order [2018-04-12 10:21:18,511 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-04-12 10:21:18,511 INFO L119 rtionOrderModulation]: Craig nested/tree interpolation forces the following order [2018-04-12 10:21:18,518 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-04-12 10:21:18,519 WARN L250 erpolLogProxyWrapper]: Using partial proofs (cut at CNF-level). Set option :produce-proofs to true to get complete proofs. [2018-04-12 10:21:18,903 INFO L134 CoverageAnalysis]: Checked inductivity of 12 backedges. 0 proven. 12 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-04-12 10:21:18,903 INFO L308 seRefinementStrategy]: The current sequences of interpolants are not accepted, trying to find more. [2018-04-12 10:21:18,904 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 [2018-04-12 10:21:18,909 INFO L103 rtionOrderModulation]: Keeping assertion order OUTSIDE_LOOP_FIRST1 [2018-04-12 10:21:18,936 INFO L242 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST1 issued 2 check-sat command(s) [2018-04-12 10:21:18,937 INFO L243 tOrderPrioritization]: Conjunction of SSA is unsat [2018-04-12 10:21:18,939 INFO L270 TraceCheckSpWp]: Computing forward predicates... [2018-04-12 10:21:18,942 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 [2018-04-12 10:21:18,942 INFO L267 ElimStorePlain]: Start of recursive call 2: End of recursive call: and 1 xjuncts. [2018-04-12 10:21:18,947 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 [2018-04-12 10:21:18,947 INFO L267 ElimStorePlain]: Start of recursive call 3: End of recursive call: and 1 xjuncts. [2018-04-12 10:21:18,950 INFO L267 ElimStorePlain]: Start of recursive call 1: 2 dim-1 vars, End of recursive call: and 1 xjuncts. [2018-04-12 10:21:18,950 INFO L202 ElimStorePlain]: Needed 3 recursive calls to eliminate 2 variables, input treesize:16, output treesize:14 [2018-04-12 10:21:18,956 INFO L700 Elim1Store]: detected not equals via solver [2018-04-12 10:21:18,957 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 [2018-04-12 10:21:18,957 INFO L267 ElimStorePlain]: Start of recursive call 2: End of recursive call: and 1 xjuncts. [2018-04-12 10:21:18,966 INFO L700 Elim1Store]: detected not equals via solver [2018-04-12 10:21:18,967 INFO L700 Elim1Store]: detected not equals via solver [2018-04-12 10:21:18,967 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 [2018-04-12 10:21:18,968 INFO L267 ElimStorePlain]: Start of recursive call 3: End of recursive call: and 1 xjuncts. [2018-04-12 10:21:18,974 INFO L267 ElimStorePlain]: Start of recursive call 1: 1 dim-0 vars, 2 dim-1 vars, End of recursive call: and 1 xjuncts. [2018-04-12 10:21:18,975 INFO L202 ElimStorePlain]: Needed 3 recursive calls to eliminate 3 variables, input treesize:31, output treesize:23 [2018-04-12 10:21:19,076 INFO L700 Elim1Store]: detected not equals via solver [2018-04-12 10:21:19,077 INFO L700 Elim1Store]: detected not equals via solver [2018-04-12 10:21:19,078 INFO L700 Elim1Store]: detected not equals via solver [2018-04-12 10:21:19,078 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 [2018-04-12 10:21:19,078 INFO L267 ElimStorePlain]: Start of recursive call 2: End of recursive call: and 1 xjuncts. [2018-04-12 10:21:19,086 INFO L477 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 1 select indices, 1 select index equivalence classes, 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 [2018-04-12 10:21:19,086 INFO L267 ElimStorePlain]: Start of recursive call 3: End of recursive call: and 1 xjuncts. [2018-04-12 10:21:19,092 INFO L267 ElimStorePlain]: Start of recursive call 1: 1 dim-0 vars, 2 dim-1 vars, End of recursive call: and 1 xjuncts. [2018-04-12 10:21:19,092 INFO L202 ElimStorePlain]: Needed 3 recursive calls to eliminate 3 variables, input treesize:34, output treesize:18 [2018-04-12 10:21:19,118 INFO L477 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 11 treesize of output 8 [2018-04-12 10:21:19,119 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 [2018-04-12 10:21:19,120 INFO L267 ElimStorePlain]: Start of recursive call 3: End of recursive call: and 1 xjuncts. [2018-04-12 10:21:19,121 INFO L267 ElimStorePlain]: Start of recursive call 2: 1 dim-1 vars, End of recursive call: and 1 xjuncts. [2018-04-12 10:21:19,128 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 [2018-04-12 10:21:19,130 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 [2018-04-12 10:21:19,130 INFO L267 ElimStorePlain]: Start of recursive call 5: End of recursive call: and 1 xjuncts. [2018-04-12 10:21:19,131 INFO L267 ElimStorePlain]: Start of recursive call 4: 1 dim-1 vars, End of recursive call: and 1 xjuncts. [2018-04-12 10:21:19,136 INFO L267 ElimStorePlain]: Start of recursive call 1: 1 dim-0 vars, 2 dim-2 vars, End of recursive call: and 1 xjuncts. [2018-04-12 10:21:19,136 INFO L202 ElimStorePlain]: Needed 5 recursive calls to eliminate 3 variables, input treesize:37, output treesize:30 [2018-04-12 10:21:19,186 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 [2018-04-12 10:21:19,187 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 [2018-04-12 10:21:19,187 INFO L267 ElimStorePlain]: Start of recursive call 3: End of recursive call: and 1 xjuncts. [2018-04-12 10:21:19,189 INFO L267 ElimStorePlain]: Start of recursive call 2: 1 dim-1 vars, End of recursive call: and 1 xjuncts. [2018-04-12 10:21:19,194 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 [2018-04-12 10:21:19,196 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 [2018-04-12 10:21:19,196 INFO L267 ElimStorePlain]: Start of recursive call 5: End of recursive call: and 1 xjuncts. [2018-04-12 10:21:19,197 INFO L267 ElimStorePlain]: Start of recursive call 4: 1 dim-1 vars, End of recursive call: and 1 xjuncts. [2018-04-12 10:21:19,200 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. [2018-04-12 10:21:19,200 INFO L202 ElimStorePlain]: Needed 5 recursive calls to eliminate 4 variables, input treesize:44, output treesize:18 [2018-04-12 10:21:19,531 INFO L134 CoverageAnalysis]: Checked inductivity of 12 backedges. 0 proven. 12 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-04-12 10:21:19,549 INFO L320 seRefinementStrategy]: Constructing automaton from 0 perfect and 2 imperfect interpolant sequences. [2018-04-12 10:21:19,549 INFO L335 seRefinementStrategy]: Number of different interpolants: perfect sequences [] imperfect sequences [20, 20] total 37 [2018-04-12 10:21:19,549 INFO L442 AbstractCegarLoop]: Interpolant automaton has 38 states [2018-04-12 10:21:19,550 INFO L132 InterpolantAutomaton]: Constructing interpolant automaton starting with 38 interpolants. [2018-04-12 10:21:19,550 INFO L133 InterpolantAutomaton]: CoverageRelationStatistics Valid=105, Invalid=1301, Unknown=0, NotChecked=0, Total=1406 [2018-04-12 10:21:19,550 INFO L87 Difference]: Start difference. First operand 168 states and 181 transitions. Second operand 38 states. [2018-04-12 10:21:21,268 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-04-12 10:21:21,269 INFO L93 Difference]: Finished difference Result 228 states and 249 transitions. [2018-04-12 10:21:21,269 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 41 states. [2018-04-12 10:21:21,269 INFO L78 Accepts]: Start accepts. Automaton has 38 states. Word has length 38 [2018-04-12 10:21:21,269 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-04-12 10:21:21,269 INFO L225 Difference]: With dead ends: 228 [2018-04-12 10:21:21,270 INFO L226 Difference]: Without dead ends: 228 [2018-04-12 10:21:21,270 INFO L567 BasicCegarLoop]: 0 DeclaredPredicates, 91 GetRequests, 19 SyntacticMatches, 2 SemanticMatches, 70 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1157 ImplicationChecksByTransitivity, 1.9s TimeCoverageRelationStatistics Valid=512, Invalid=4600, Unknown=0, NotChecked=0, Total=5112 [2018-04-12 10:21:21,271 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 228 states. [2018-04-12 10:21:21,272 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 228 to 167. [2018-04-12 10:21:21,272 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 167 states. [2018-04-12 10:21:21,273 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 167 states to 167 states and 180 transitions. [2018-04-12 10:21:21,273 INFO L78 Accepts]: Start accepts. Automaton has 167 states and 180 transitions. Word has length 38 [2018-04-12 10:21:21,273 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-04-12 10:21:21,273 INFO L459 AbstractCegarLoop]: Abstraction has 167 states and 180 transitions. [2018-04-12 10:21:21,273 INFO L460 AbstractCegarLoop]: Interpolant automaton has 38 states. [2018-04-12 10:21:21,273 INFO L276 IsEmpty]: Start isEmpty. Operand 167 states and 180 transitions. [2018-04-12 10:21:21,273 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 42 [2018-04-12 10:21:21,274 INFO L347 BasicCegarLoop]: Found error trace [2018-04-12 10:21:21,274 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] [2018-04-12 10:21:21,274 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]=== [2018-04-12 10:21:21,274 INFO L82 PathProgramCache]: Analyzing trace with hash -1950848603, now seen corresponding path program 1 times [2018-04-12 10:21:21,274 INFO L213 ckRefinementStrategy]: Switched to mode SMTINTERPOL_TREE_INTERPOLANTS [2018-04-12 10:21:21,274 INFO L68 tionRefinementEngine]: Using refinement strategy CamelRefinementStrategy [2018-04-12 10:21:21,274 INFO L119 rtionOrderModulation]: Craig nested/tree interpolation forces the following order [2018-04-12 10:21:21,274 INFO L101 rtionOrderModulation]: Changing assertion order to NOT_INCREMENTALLY [2018-04-12 10:21:21,274 INFO L119 rtionOrderModulation]: Craig nested/tree interpolation forces the following order [2018-04-12 10:21:21,284 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-04-12 10:21:21,284 WARN L250 erpolLogProxyWrapper]: Using partial proofs (cut at CNF-level). Set option :produce-proofs to true to get complete proofs. [2018-04-12 10:21:21,415 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-04-12 10:21:21,415 INFO L320 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2018-04-12 10:21:21,415 INFO L335 seRefinementStrategy]: Number of different interpolants: perfect sequences [9] imperfect sequences [] total 9 [2018-04-12 10:21:21,416 INFO L442 AbstractCegarLoop]: Interpolant automaton has 10 states [2018-04-12 10:21:21,416 INFO L132 InterpolantAutomaton]: Constructing interpolant automaton starting with 10 interpolants. [2018-04-12 10:21:21,416 INFO L133 InterpolantAutomaton]: CoverageRelationStatistics Valid=22, Invalid=68, Unknown=0, NotChecked=0, Total=90 [2018-04-12 10:21:21,416 INFO L87 Difference]: Start difference. First operand 167 states and 180 transitions. Second operand 10 states. [2018-04-12 10:21:21,503 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-04-12 10:21:21,503 INFO L93 Difference]: Finished difference Result 166 states and 179 transitions. [2018-04-12 10:21:21,503 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 11 states. [2018-04-12 10:21:21,503 INFO L78 Accepts]: Start accepts. Automaton has 10 states. Word has length 41 [2018-04-12 10:21:21,503 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-04-12 10:21:21,504 INFO L225 Difference]: With dead ends: 166 [2018-04-12 10:21:21,504 INFO L226 Difference]: Without dead ends: 56 [2018-04-12 10:21:21,504 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 [2018-04-12 10:21:21,504 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 56 states. [2018-04-12 10:21:21,505 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 56 to 56. [2018-04-12 10:21:21,505 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 56 states. [2018-04-12 10:21:21,505 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 56 states to 56 states and 58 transitions. [2018-04-12 10:21:21,505 INFO L78 Accepts]: Start accepts. Automaton has 56 states and 58 transitions. Word has length 41 [2018-04-12 10:21:21,505 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-04-12 10:21:21,505 INFO L459 AbstractCegarLoop]: Abstraction has 56 states and 58 transitions. [2018-04-12 10:21:21,505 INFO L460 AbstractCegarLoop]: Interpolant automaton has 10 states. [2018-04-12 10:21:21,505 INFO L276 IsEmpty]: Start isEmpty. Operand 56 states and 58 transitions. [2018-04-12 10:21:21,505 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 45 [2018-04-12 10:21:21,505 INFO L347 BasicCegarLoop]: Found error trace [2018-04-12 10:21:21,506 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] [2018-04-12 10:21:21,506 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]=== [2018-04-12 10:21:21,506 INFO L82 PathProgramCache]: Analyzing trace with hash 1564572039, now seen corresponding path program 2 times [2018-04-12 10:21:21,506 INFO L213 ckRefinementStrategy]: Switched to mode SMTINTERPOL_TREE_INTERPOLANTS [2018-04-12 10:21:21,506 INFO L68 tionRefinementEngine]: Using refinement strategy CamelRefinementStrategy [2018-04-12 10:21:21,507 INFO L119 rtionOrderModulation]: Craig nested/tree interpolation forces the following order [2018-04-12 10:21:21,507 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-04-12 10:21:21,507 INFO L119 rtionOrderModulation]: Craig nested/tree interpolation forces the following order [2018-04-12 10:21:21,521 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-04-12 10:21:21,522 WARN L250 erpolLogProxyWrapper]: Using partial proofs (cut at CNF-level). Set option :produce-proofs to true to get complete proofs. [2018-04-12 10:21:22,026 INFO L134 CoverageAnalysis]: Checked inductivity of 14 backedges. 0 proven. 14 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-04-12 10:21:22,026 INFO L308 seRefinementStrategy]: The current sequences of interpolants are not accepted, trying to find more. [2018-04-12 10:21:22,026 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 [2018-04-12 10:21:22,032 INFO L103 rtionOrderModulation]: Keeping assertion order OUTSIDE_LOOP_FIRST1 [2018-04-12 10:21:22,069 INFO L242 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST1 issued 2 check-sat command(s) [2018-04-12 10:21:22,069 INFO L243 tOrderPrioritization]: Conjunction of SSA is unsat [2018-04-12 10:21:22,072 INFO L270 TraceCheckSpWp]: Computing forward predicates... [2018-04-12 10:21:22,074 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 [2018-04-12 10:21:22,074 INFO L267 ElimStorePlain]: Start of recursive call 2: End of recursive call: and 1 xjuncts. [2018-04-12 10:21:22,078 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 [2018-04-12 10:21:22,078 INFO L267 ElimStorePlain]: Start of recursive call 3: End of recursive call: and 1 xjuncts. [2018-04-12 10:21:22,081 INFO L267 ElimStorePlain]: Start of recursive call 1: 2 dim-1 vars, End of recursive call: and 1 xjuncts. [2018-04-12 10:21:22,081 INFO L202 ElimStorePlain]: Needed 3 recursive calls to eliminate 2 variables, input treesize:16, output treesize:14 [2018-04-12 10:21:22,086 INFO L700 Elim1Store]: detected not equals via solver [2018-04-12 10:21:22,086 INFO L700 Elim1Store]: detected not equals via solver [2018-04-12 10:21:22,087 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 [2018-04-12 10:21:22,087 INFO L267 ElimStorePlain]: Start of recursive call 2: End of recursive call: and 1 xjuncts. [2018-04-12 10:21:22,094 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 [2018-04-12 10:21:22,094 INFO L267 ElimStorePlain]: Start of recursive call 3: End of recursive call: and 1 xjuncts. [2018-04-12 10:21:22,099 INFO L267 ElimStorePlain]: Start of recursive call 1: 1 dim-0 vars, 2 dim-1 vars, End of recursive call: and 1 xjuncts. [2018-04-12 10:21:22,099 INFO L202 ElimStorePlain]: Needed 3 recursive calls to eliminate 3 variables, input treesize:31, output treesize:23 [2018-04-12 10:21:22,189 INFO L700 Elim1Store]: detected not equals via solver [2018-04-12 10:21:22,190 INFO L700 Elim1Store]: detected not equals via solver [2018-04-12 10:21:22,190 INFO L700 Elim1Store]: detected not equals via solver [2018-04-12 10:21:22,191 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 [2018-04-12 10:21:22,191 INFO L267 ElimStorePlain]: Start of recursive call 2: End of recursive call: and 1 xjuncts. [2018-04-12 10:21:22,201 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 [2018-04-12 10:21:22,201 INFO L267 ElimStorePlain]: Start of recursive call 3: End of recursive call: and 1 xjuncts. [2018-04-12 10:21:22,206 INFO L267 ElimStorePlain]: Start of recursive call 1: 1 dim-0 vars, 2 dim-1 vars, End of recursive call: and 1 xjuncts. [2018-04-12 10:21:22,206 INFO L202 ElimStorePlain]: Needed 3 recursive calls to eliminate 3 variables, input treesize:34, output treesize:18 [2018-04-12 10:21:22,230 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 [2018-04-12 10:21:22,232 INFO L477 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 8 treesize of output 7 [2018-04-12 10:21:22,232 INFO L267 ElimStorePlain]: Start of recursive call 3: End of recursive call: and 1 xjuncts. [2018-04-12 10:21:22,234 INFO L267 ElimStorePlain]: Start of recursive call 2: 1 dim-1 vars, End of recursive call: and 1 xjuncts. [2018-04-12 10:21:22,240 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 [2018-04-12 10:21:22,241 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 [2018-04-12 10:21:22,241 INFO L267 ElimStorePlain]: Start of recursive call 5: End of recursive call: and 1 xjuncts. [2018-04-12 10:21:22,242 INFO L267 ElimStorePlain]: Start of recursive call 4: 1 dim-1 vars, End of recursive call: and 1 xjuncts. [2018-04-12 10:21:22,246 INFO L267 ElimStorePlain]: Start of recursive call 1: 1 dim-0 vars, 2 dim-2 vars, End of recursive call: and 1 xjuncts. [2018-04-12 10:21:22,246 INFO L202 ElimStorePlain]: Needed 5 recursive calls to eliminate 3 variables, input treesize:37, output treesize:30 [2018-04-12 10:21:22,294 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 [2018-04-12 10:21:22,296 INFO L477 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 1 select indices, 1 select index equivalence classes, 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 [2018-04-12 10:21:22,296 INFO L267 ElimStorePlain]: Start of recursive call 3: End of recursive call: and 1 xjuncts. [2018-04-12 10:21:22,299 INFO L267 ElimStorePlain]: Start of recursive call 2: 1 dim-1 vars, End of recursive call: and 1 xjuncts. [2018-04-12 10:21:22,304 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 [2018-04-12 10:21:22,305 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 [2018-04-12 10:21:22,306 INFO L267 ElimStorePlain]: Start of recursive call 5: End of recursive call: and 1 xjuncts. [2018-04-12 10:21:22,306 INFO L267 ElimStorePlain]: Start of recursive call 4: 1 dim-1 vars, End of recursive call: and 1 xjuncts. [2018-04-12 10:21:22,309 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. [2018-04-12 10:21:22,310 INFO L202 ElimStorePlain]: Needed 5 recursive calls to eliminate 4 variables, input treesize:44, output treesize:18 [2018-04-12 10:21:22,651 INFO L134 CoverageAnalysis]: Checked inductivity of 14 backedges. 0 proven. 14 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-04-12 10:21:22,668 INFO L320 seRefinementStrategy]: Constructing automaton from 0 perfect and 2 imperfect interpolant sequences. [2018-04-12 10:21:22,669 INFO L335 seRefinementStrategy]: Number of different interpolants: perfect sequences [] imperfect sequences [22, 20] total 39 [2018-04-12 10:21:22,669 INFO L442 AbstractCegarLoop]: Interpolant automaton has 40 states [2018-04-12 10:21:22,669 INFO L132 InterpolantAutomaton]: Constructing interpolant automaton starting with 40 interpolants. [2018-04-12 10:21:22,669 INFO L133 InterpolantAutomaton]: CoverageRelationStatistics Valid=129, Invalid=1431, Unknown=0, NotChecked=0, Total=1560 [2018-04-12 10:21:22,669 INFO L87 Difference]: Start difference. First operand 56 states and 58 transitions. Second operand 40 states. [2018-04-12 10:21:25,283 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-04-12 10:21:25,284 INFO L93 Difference]: Finished difference Result 105 states and 111 transitions. [2018-04-12 10:21:25,284 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 48 states. [2018-04-12 10:21:25,284 INFO L78 Accepts]: Start accepts. Automaton has 40 states. Word has length 44 [2018-04-12 10:21:25,284 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-04-12 10:21:25,284 INFO L225 Difference]: With dead ends: 105 [2018-04-12 10:21:25,284 INFO L226 Difference]: Without dead ends: 105 [2018-04-12 10:21:25,286 INFO L567 BasicCegarLoop]: 0 DeclaredPredicates, 109 GetRequests, 25 SyntacticMatches, 2 SemanticMatches, 82 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1759 ImplicationChecksByTransitivity, 3.1s TimeCoverageRelationStatistics Valid=746, Invalid=6226, Unknown=0, NotChecked=0, Total=6972 [2018-04-12 10:21:25,286 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 105 states. [2018-04-12 10:21:25,287 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 105 to 99. [2018-04-12 10:21:25,287 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 99 states. [2018-04-12 10:21:25,288 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 99 states to 99 states and 105 transitions. [2018-04-12 10:21:25,288 INFO L78 Accepts]: Start accepts. Automaton has 99 states and 105 transitions. Word has length 44 [2018-04-12 10:21:25,288 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-04-12 10:21:25,288 INFO L459 AbstractCegarLoop]: Abstraction has 99 states and 105 transitions. [2018-04-12 10:21:25,288 INFO L460 AbstractCegarLoop]: Interpolant automaton has 40 states. [2018-04-12 10:21:25,288 INFO L276 IsEmpty]: Start isEmpty. Operand 99 states and 105 transitions. [2018-04-12 10:21:25,288 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 64 [2018-04-12 10:21:25,288 INFO L347 BasicCegarLoop]: Found error trace [2018-04-12 10:21:25,288 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] [2018-04-12 10:21:25,288 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]=== [2018-04-12 10:21:25,289 INFO L82 PathProgramCache]: Analyzing trace with hash -1476451343, now seen corresponding path program 1 times [2018-04-12 10:21:25,289 INFO L213 ckRefinementStrategy]: Switched to mode SMTINTERPOL_TREE_INTERPOLANTS [2018-04-12 10:21:25,289 INFO L68 tionRefinementEngine]: Using refinement strategy CamelRefinementStrategy [2018-04-12 10:21:25,289 INFO L119 rtionOrderModulation]: Craig nested/tree interpolation forces the following order [2018-04-12 10:21:25,289 INFO L101 rtionOrderModulation]: Changing assertion order to NOT_INCREMENTALLY [2018-04-12 10:21:25,289 INFO L119 rtionOrderModulation]: Craig nested/tree interpolation forces the following order [2018-04-12 10:21:25,302 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-04-12 10:21:25,303 WARN L250 erpolLogProxyWrapper]: Using partial proofs (cut at CNF-level). Set option :produce-proofs to true to get complete proofs. [2018-04-12 10:21:25,880 INFO L134 CoverageAnalysis]: Checked inductivity of 74 backedges. 57 proven. 17 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-04-12 10:21:25,880 INFO L308 seRefinementStrategy]: The current sequences of interpolants are not accepted, trying to find more. [2018-04-12 10:21:25,880 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 [2018-04-12 10:21:25,885 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-04-12 10:21:25,932 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-04-12 10:21:25,935 INFO L270 TraceCheckSpWp]: Computing forward predicates... [2018-04-12 10:21:25,937 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 [2018-04-12 10:21:25,938 INFO L267 ElimStorePlain]: Start of recursive call 2: End of recursive call: and 1 xjuncts. [2018-04-12 10:21:25,942 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 [2018-04-12 10:21:25,942 INFO L267 ElimStorePlain]: Start of recursive call 3: End of recursive call: and 1 xjuncts. [2018-04-12 10:21:25,945 INFO L267 ElimStorePlain]: Start of recursive call 1: 2 dim-1 vars, End of recursive call: and 1 xjuncts. [2018-04-12 10:21:25,946 INFO L202 ElimStorePlain]: Needed 3 recursive calls to eliminate 2 variables, input treesize:16, output treesize:14 [2018-04-12 10:21:25,951 INFO L700 Elim1Store]: detected not equals via solver [2018-04-12 10:21:25,952 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 [2018-04-12 10:21:25,952 INFO L267 ElimStorePlain]: Start of recursive call 2: End of recursive call: and 1 xjuncts. [2018-04-12 10:21:25,960 INFO L700 Elim1Store]: detected not equals via solver [2018-04-12 10:21:25,960 INFO L700 Elim1Store]: detected not equals via solver [2018-04-12 10:21:25,961 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 [2018-04-12 10:21:25,961 INFO L267 ElimStorePlain]: Start of recursive call 3: End of recursive call: and 1 xjuncts. [2018-04-12 10:21:25,965 INFO L267 ElimStorePlain]: Start of recursive call 1: 1 dim-0 vars, 2 dim-1 vars, End of recursive call: and 1 xjuncts. [2018-04-12 10:21:25,965 INFO L202 ElimStorePlain]: Needed 3 recursive calls to eliminate 3 variables, input treesize:25, output treesize:13 [2018-04-12 10:21:25,998 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 [2018-04-12 10:21:25,999 INFO L267 ElimStorePlain]: Start of recursive call 2: End of recursive call: and 2 xjuncts. [2018-04-12 10:21:26,006 INFO L267 ElimStorePlain]: Start of recursive call 1: 1 dim-1 vars, End of recursive call: and 2 xjuncts. [2018-04-12 10:21:26,007 INFO L202 ElimStorePlain]: Needed 2 recursive calls to eliminate 1 variables, input treesize:20, output treesize:32 [2018-04-12 10:21:26,040 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 [2018-04-12 10:21:26,041 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 [2018-04-12 10:21:26,041 INFO L267 ElimStorePlain]: Start of recursive call 3: End of recursive call: and 1 xjuncts. [2018-04-12 10:21:26,047 INFO L267 ElimStorePlain]: Start of recursive call 2: 1 dim-1 vars, End of recursive call: and 1 xjuncts. [2018-04-12 10:21:26,061 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 [2018-04-12 10:21:26,063 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 [2018-04-12 10:21:26,063 INFO L267 ElimStorePlain]: Start of recursive call 5: End of recursive call: and 1 xjuncts. [2018-04-12 10:21:26,068 INFO L267 ElimStorePlain]: Start of recursive call 4: 1 dim-1 vars, End of recursive call: and 1 xjuncts. [2018-04-12 10:21:26,081 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 [2018-04-12 10:21:26,082 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 [2018-04-12 10:21:26,082 INFO L267 ElimStorePlain]: Start of recursive call 7: End of recursive call: and 1 xjuncts. [2018-04-12 10:21:26,086 INFO L267 ElimStorePlain]: Start of recursive call 6: 1 dim-1 vars, End of recursive call: and 1 xjuncts. [2018-04-12 10:21:26,097 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 [2018-04-12 10:21:26,098 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 [2018-04-12 10:21:26,098 INFO L267 ElimStorePlain]: Start of recursive call 9: End of recursive call: and 1 xjuncts. [2018-04-12 10:21:26,101 INFO L267 ElimStorePlain]: Start of recursive call 8: 1 dim-1 vars, End of recursive call: and 1 xjuncts. [2018-04-12 10:21:26,111 INFO L267 ElimStorePlain]: Start of recursive call 1: 1 dim-0 vars, 4 dim-2 vars, End of recursive call: and 2 xjuncts. [2018-04-12 10:21:26,111 INFO L202 ElimStorePlain]: Needed 9 recursive calls to eliminate 5 variables, input treesize:67, output treesize:52 [2018-04-12 10:21:26,179 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 [2018-04-12 10:21:26,183 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 [2018-04-12 10:21:26,210 INFO L267 ElimStorePlain]: Start of recursive call 3: End of recursive call: and 1 xjuncts. [2018-04-12 10:21:26,214 INFO L267 ElimStorePlain]: Start of recursive call 2: 1 dim-1 vars, End of recursive call: and 1 xjuncts. [2018-04-12 10:21:26,225 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 [2018-04-12 10:21:26,226 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 [2018-04-12 10:21:26,226 INFO L267 ElimStorePlain]: Start of recursive call 5: End of recursive call: and 1 xjuncts. [2018-04-12 10:21:26,231 INFO L267 ElimStorePlain]: Start of recursive call 4: 1 dim-1 vars, End of recursive call: and 1 xjuncts. [2018-04-12 10:21:26,246 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 [2018-04-12 10:21:26,247 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 [2018-04-12 10:21:26,248 INFO L267 ElimStorePlain]: Start of recursive call 7: End of recursive call: and 1 xjuncts. [2018-04-12 10:21:26,251 INFO L267 ElimStorePlain]: Start of recursive call 6: 1 dim-1 vars, End of recursive call: and 1 xjuncts. [2018-04-12 10:21:26,261 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 [2018-04-12 10:21:26,263 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 [2018-04-12 10:21:26,263 INFO L267 ElimStorePlain]: Start of recursive call 9: End of recursive call: and 1 xjuncts. [2018-04-12 10:21:26,281 INFO L267 ElimStorePlain]: Start of recursive call 8: 1 dim-1 vars, End of recursive call: and 1 xjuncts. [2018-04-12 10:21:26,290 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. [2018-04-12 10:21:26,290 INFO L202 ElimStorePlain]: Needed 9 recursive calls to eliminate 8 variables, input treesize:80, output treesize:29 [2018-04-12 10:21:27,135 INFO L134 CoverageAnalysis]: Checked inductivity of 74 backedges. 0 proven. 74 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-04-12 10:21:27,153 INFO L320 seRefinementStrategy]: Constructing automaton from 0 perfect and 2 imperfect interpolant sequences. [2018-04-12 10:21:27,154 INFO L335 seRefinementStrategy]: Number of different interpolants: perfect sequences [] imperfect sequences [30, 28] total 53 [2018-04-12 10:21:27,154 INFO L442 AbstractCegarLoop]: Interpolant automaton has 54 states [2018-04-12 10:21:27,154 INFO L132 InterpolantAutomaton]: Constructing interpolant automaton starting with 54 interpolants. [2018-04-12 10:21:27,154 INFO L133 InterpolantAutomaton]: CoverageRelationStatistics Valid=209, Invalid=2653, Unknown=0, NotChecked=0, Total=2862 [2018-04-12 10:21:27,154 INFO L87 Difference]: Start difference. First operand 99 states and 105 transitions. Second operand 54 states. [2018-04-12 10:21:30,380 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-04-12 10:21:30,380 INFO L93 Difference]: Finished difference Result 113 states and 119 transitions. [2018-04-12 10:21:30,380 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 44 states. [2018-04-12 10:21:30,381 INFO L78 Accepts]: Start accepts. Automaton has 54 states. Word has length 63 [2018-04-12 10:21:30,381 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-04-12 10:21:30,381 INFO L225 Difference]: With dead ends: 113 [2018-04-12 10:21:30,381 INFO L226 Difference]: Without dead ends: 72 [2018-04-12 10:21:30,382 INFO L567 BasicCegarLoop]: 0 DeclaredPredicates, 131 GetRequests, 37 SyntacticMatches, 3 SemanticMatches, 91 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 2274 ImplicationChecksByTransitivity, 3.5s TimeCoverageRelationStatistics Valid=652, Invalid=7904, Unknown=0, NotChecked=0, Total=8556 [2018-04-12 10:21:30,382 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 72 states. [2018-04-12 10:21:30,383 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 72 to 69. [2018-04-12 10:21:30,383 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 69 states. [2018-04-12 10:21:30,384 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 69 states to 69 states and 69 transitions. [2018-04-12 10:21:30,384 INFO L78 Accepts]: Start accepts. Automaton has 69 states and 69 transitions. Word has length 63 [2018-04-12 10:21:30,384 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-04-12 10:21:30,384 INFO L459 AbstractCegarLoop]: Abstraction has 69 states and 69 transitions. [2018-04-12 10:21:30,384 INFO L460 AbstractCegarLoop]: Interpolant automaton has 54 states. [2018-04-12 10:21:30,384 INFO L276 IsEmpty]: Start isEmpty. Operand 69 states and 69 transitions. [2018-04-12 10:21:30,385 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 69 [2018-04-12 10:21:30,385 INFO L347 BasicCegarLoop]: Found error trace [2018-04-12 10:21:30,385 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] [2018-04-12 10:21:30,385 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]=== [2018-04-12 10:21:30,385 INFO L82 PathProgramCache]: Analyzing trace with hash 754302975, now seen corresponding path program 3 times [2018-04-12 10:21:30,385 INFO L213 ckRefinementStrategy]: Switched to mode SMTINTERPOL_TREE_INTERPOLANTS [2018-04-12 10:21:30,385 INFO L68 tionRefinementEngine]: Using refinement strategy CamelRefinementStrategy [2018-04-12 10:21:30,386 INFO L119 rtionOrderModulation]: Craig nested/tree interpolation forces the following order [2018-04-12 10:21:30,386 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-04-12 10:21:30,386 INFO L119 rtionOrderModulation]: Craig nested/tree interpolation forces the following order [2018-04-12 10:21:30,409 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-04-12 10:21:30,410 WARN L250 erpolLogProxyWrapper]: Using partial proofs (cut at CNF-level). Set option :produce-proofs to true to get complete proofs. [2018-04-12 10:21:31,150 INFO L134 CoverageAnalysis]: Checked inductivity of 114 backedges. 59 proven. 55 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-04-12 10:21:31,150 INFO L308 seRefinementStrategy]: The current sequences of interpolants are not accepted, trying to find more. [2018-04-12 10:21:31,150 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 [2018-04-12 10:21:31,155 INFO L103 rtionOrderModulation]: Keeping assertion order OUTSIDE_LOOP_FIRST2 [2018-04-12 10:21:31,336 INFO L242 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST2 issued 7 check-sat command(s) [2018-04-12 10:21:31,336 INFO L243 tOrderPrioritization]: Conjunction of SSA is unsat [2018-04-12 10:21:31,341 INFO L270 TraceCheckSpWp]: Computing forward predicates... [2018-04-12 10:21:31,342 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 [2018-04-12 10:21:31,343 INFO L267 ElimStorePlain]: Start of recursive call 2: End of recursive call: and 1 xjuncts. [2018-04-12 10:21:31,347 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 [2018-04-12 10:21:31,347 INFO L267 ElimStorePlain]: Start of recursive call 3: End of recursive call: and 1 xjuncts. [2018-04-12 10:21:31,350 INFO L267 ElimStorePlain]: Start of recursive call 1: 2 dim-1 vars, End of recursive call: and 1 xjuncts. [2018-04-12 10:21:31,350 INFO L202 ElimStorePlain]: Needed 3 recursive calls to eliminate 2 variables, input treesize:16, output treesize:14 [2018-04-12 10:21:31,360 INFO L700 Elim1Store]: detected not equals via solver [2018-04-12 10:21:31,361 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 [2018-04-12 10:21:31,361 INFO L267 ElimStorePlain]: Start of recursive call 2: End of recursive call: and 1 xjuncts. [2018-04-12 10:21:31,377 INFO L700 Elim1Store]: detected not equals via solver [2018-04-12 10:21:31,377 INFO L700 Elim1Store]: detected not equals via solver [2018-04-12 10:21:31,378 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 [2018-04-12 10:21:31,378 INFO L267 ElimStorePlain]: Start of recursive call 3: End of recursive call: and 1 xjuncts. [2018-04-12 10:21:31,384 INFO L267 ElimStorePlain]: Start of recursive call 1: 1 dim-0 vars, 2 dim-1 vars, End of recursive call: and 1 xjuncts. [2018-04-12 10:21:31,384 INFO L202 ElimStorePlain]: Needed 3 recursive calls to eliminate 3 variables, input treesize:31, output treesize:23 [2018-04-12 10:21:31,489 INFO L700 Elim1Store]: detected not equals via solver [2018-04-12 10:21:31,490 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 [2018-04-12 10:21:31,490 INFO L267 ElimStorePlain]: Start of recursive call 2: End of recursive call: and 1 xjuncts. [2018-04-12 10:21:31,498 INFO L700 Elim1Store]: detected not equals via solver [2018-04-12 10:21:31,498 INFO L700 Elim1Store]: detected not equals via solver [2018-04-12 10:21:31,499 INFO L700 Elim1Store]: detected not equals via solver [2018-04-12 10:21:31,499 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 [2018-04-12 10:21:31,499 INFO L267 ElimStorePlain]: Start of recursive call 3: End of recursive call: and 1 xjuncts. [2018-04-12 10:21:31,504 INFO L267 ElimStorePlain]: Start of recursive call 1: 1 dim-0 vars, 2 dim-1 vars, End of recursive call: and 1 xjuncts. [2018-04-12 10:21:31,504 INFO L202 ElimStorePlain]: Needed 3 recursive calls to eliminate 3 variables, input treesize:34, output treesize:18 [2018-04-12 10:21:31,530 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 [2018-04-12 10:21:31,531 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 [2018-04-12 10:21:31,531 INFO L267 ElimStorePlain]: Start of recursive call 3: End of recursive call: and 1 xjuncts. [2018-04-12 10:21:31,532 INFO L267 ElimStorePlain]: Start of recursive call 2: 1 dim-1 vars, End of recursive call: and 1 xjuncts. [2018-04-12 10:21:31,538 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 [2018-04-12 10:21:31,539 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 [2018-04-12 10:21:31,539 INFO L267 ElimStorePlain]: Start of recursive call 5: End of recursive call: and 1 xjuncts. [2018-04-12 10:21:31,540 INFO L267 ElimStorePlain]: Start of recursive call 4: 1 dim-1 vars, End of recursive call: and 1 xjuncts. [2018-04-12 10:21:31,545 INFO L267 ElimStorePlain]: Start of recursive call 1: 1 dim-0 vars, 2 dim-2 vars, End of recursive call: and 1 xjuncts. [2018-04-12 10:21:31,545 INFO L202 ElimStorePlain]: Needed 5 recursive calls to eliminate 3 variables, input treesize:37, output treesize:30 [2018-04-12 10:21:31,597 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 [2018-04-12 10:21:31,598 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 [2018-04-12 10:21:31,598 INFO L267 ElimStorePlain]: Start of recursive call 3: End of recursive call: and 1 xjuncts. [2018-04-12 10:21:31,600 INFO L267 ElimStorePlain]: Start of recursive call 2: 1 dim-1 vars, End of recursive call: and 1 xjuncts. [2018-04-12 10:21:31,605 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 [2018-04-12 10:21:31,606 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 [2018-04-12 10:21:31,607 INFO L267 ElimStorePlain]: Start of recursive call 5: End of recursive call: and 1 xjuncts. [2018-04-12 10:21:31,608 INFO L267 ElimStorePlain]: Start of recursive call 4: 1 dim-1 vars, End of recursive call: and 1 xjuncts. [2018-04-12 10:21:31,611 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. [2018-04-12 10:21:31,611 INFO L202 ElimStorePlain]: Needed 5 recursive calls to eliminate 4 variables, input treesize:44, output treesize:18 [2018-04-12 10:21:32,317 INFO L134 CoverageAnalysis]: Checked inductivity of 114 backedges. 0 proven. 114 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-04-12 10:21:32,336 INFO L320 seRefinementStrategy]: Constructing automaton from 0 perfect and 2 imperfect interpolant sequences. [2018-04-12 10:21:32,336 INFO L335 seRefinementStrategy]: Number of different interpolants: perfect sequences [] imperfect sequences [30, 28] total 55 [2018-04-12 10:21:32,336 INFO L442 AbstractCegarLoop]: Interpolant automaton has 56 states [2018-04-12 10:21:32,337 INFO L132 InterpolantAutomaton]: Constructing interpolant automaton starting with 56 interpolants. [2018-04-12 10:21:32,337 INFO L133 InterpolantAutomaton]: CoverageRelationStatistics Valid=258, Invalid=2822, Unknown=0, NotChecked=0, Total=3080 [2018-04-12 10:21:32,337 INFO L87 Difference]: Start difference. First operand 69 states and 69 transitions. Second operand 56 states. [2018-04-12 10:21:35,376 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-04-12 10:21:35,376 INFO L93 Difference]: Finished difference Result 80 states and 80 transitions. [2018-04-12 10:21:35,376 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 49 states. [2018-04-12 10:21:35,376 INFO L78 Accepts]: Start accepts. Automaton has 56 states. Word has length 68 [2018-04-12 10:21:35,376 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-04-12 10:21:35,376 INFO L225 Difference]: With dead ends: 80 [2018-04-12 10:21:35,376 INFO L226 Difference]: Without dead ends: 0 [2018-04-12 10:21:35,378 INFO L567 BasicCegarLoop]: 0 DeclaredPredicates, 143 GetRequests, 42 SyntacticMatches, 2 SemanticMatches, 99 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 2641 ImplicationChecksByTransitivity, 3.7s TimeCoverageRelationStatistics Valid=1005, Invalid=9095, Unknown=0, NotChecked=0, Total=10100 [2018-04-12 10:21:35,378 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 0 states. [2018-04-12 10:21:35,378 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 0 to 0. [2018-04-12 10:21:35,378 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 0 states. [2018-04-12 10:21:35,379 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 0 states to 0 states and 0 transitions. [2018-04-12 10:21:35,379 INFO L78 Accepts]: Start accepts. Automaton has 0 states and 0 transitions. Word has length 68 [2018-04-12 10:21:35,379 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-04-12 10:21:35,379 INFO L459 AbstractCegarLoop]: Abstraction has 0 states and 0 transitions. [2018-04-12 10:21:35,379 INFO L460 AbstractCegarLoop]: Interpolant automaton has 56 states. [2018-04-12 10:21:35,379 INFO L276 IsEmpty]: Start isEmpty. Operand 0 states and 0 transitions. [2018-04-12 10:21:35,379 INFO L282 IsEmpty]: Finished isEmpty. No accepting run. [2018-04-12 10:21:35,382 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 12.04 10:21:35 BoogieIcfgContainer [2018-04-12 10:21:35,382 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2018-04-12 10:21:35,383 INFO L168 Benchmark]: Toolchain (without parser) took 34691.70 ms. Allocated memory was 399.5 MB in the beginning and 1.0 GB in the end (delta: 625.5 MB). Free memory was 336.6 MB in the beginning and 909.2 MB in the end (delta: -572.6 MB). Peak memory consumption was 52.9 MB. Max. memory is 5.3 GB. [2018-04-12 10:21:35,383 INFO L168 Benchmark]: CDTParser took 0.13 ms. Allocated memory is still 399.5 MB. Free memory is still 362.9 MB. There was no memory consumed. Max. memory is 5.3 GB. [2018-04-12 10:21:35,383 INFO L168 Benchmark]: CACSL2BoogieTranslator took 263.81 ms. Allocated memory is still 399.5 MB. Free memory was 335.3 MB in the beginning and 310.1 MB in the end (delta: 25.2 MB). Peak memory consumption was 25.2 MB. Max. memory is 5.3 GB. [2018-04-12 10:21:35,384 INFO L168 Benchmark]: Boogie Preprocessor took 40.06 ms. Allocated memory is still 399.5 MB. Free memory was 310.1 MB in the beginning and 308.8 MB in the end (delta: 1.3 MB). Peak memory consumption was 1.3 MB. Max. memory is 5.3 GB. [2018-04-12 10:21:35,384 INFO L168 Benchmark]: RCFGBuilder took 446.83 ms. Allocated memory was 399.5 MB in the beginning and 600.3 MB in the end (delta: 200.8 MB). Free memory was 307.5 MB in the beginning and 528.8 MB in the end (delta: -221.3 MB). Peak memory consumption was 23.0 MB. Max. memory is 5.3 GB. [2018-04-12 10:21:35,384 INFO L168 Benchmark]: TraceAbstraction took 33938.45 ms. Allocated memory was 600.3 MB in the beginning and 1.0 GB in the end (delta: 424.7 MB). Free memory was 528.8 MB in the beginning and 909.2 MB in the end (delta: -380.5 MB). Peak memory consumption was 44.2 MB. Max. memory is 5.3 GB. [2018-04-12 10:21:35,385 INFO L344 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.13 ms. Allocated memory is still 399.5 MB. Free memory is still 362.9 MB. There was no memory consumed. Max. memory is 5.3 GB. * CACSL2BoogieTranslator took 263.81 ms. Allocated memory is still 399.5 MB. Free memory was 335.3 MB in the beginning and 310.1 MB in the end (delta: 25.2 MB). Peak memory consumption was 25.2 MB. Max. memory is 5.3 GB. * Boogie Preprocessor took 40.06 ms. Allocated memory is still 399.5 MB. Free memory was 310.1 MB in the beginning and 308.8 MB in the end (delta: 1.3 MB). Peak memory consumption was 1.3 MB. Max. memory is 5.3 GB. * RCFGBuilder took 446.83 ms. Allocated memory was 399.5 MB in the beginning and 600.3 MB in the end (delta: 200.8 MB). Free memory was 307.5 MB in the beginning and 528.8 MB in the end (delta: -221.3 MB). Peak memory consumption was 23.0 MB. Max. memory is 5.3 GB. * TraceAbstraction took 33938.45 ms. Allocated memory was 600.3 MB in the beginning and 1.0 GB in the end (delta: 424.7 MB). Free memory was 528.8 MB in the beginning and 909.2 MB in the end (delta: -380.5 MB). Peak memory consumption was 44.2 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, 33.8s OverallTime, 25 OverallIterations, 7 TraceHistogramMax, 20.4s AutomataDifference, 0.0s DeadEndRemovalTime, 0.0s HoareAnnotationTime, HoareTripleCheckerStatistics: 1047 SDtfs, 2182 SDslu, 9581 SDs, 0 SdLazy, 11350 SolverSat, 699 SolverUnsat, 0 SolverUnknown, 0 SolverNotchecked, 5.5s Time, PredicateUnifierStatistics: 0 DeclaredPredicates, 1016 GetRequests, 247 SyntacticMatches, 19 SemanticMatches, 750 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 10819 ImplicationChecksByTransitivity, 23.4s 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: 0.0s SsaConstructionTime, 0.6s SatisfiabilityAnalysisTime, 12.0s 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-0-2018-04-12_10-21-35-389.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-0-2018-04-12_10-21-35-389.csv Received shutdown request...