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_cstrcspn-alloca_true-valid-memsafety_true-termination.i -------------------------------------------------------------------------------- This is Ultimate 0.1.23-408c70d-m [2018-04-12 10:23:22,696 INFO L170 SettingsManager]: Resetting all preferences to default values... [2018-04-12 10:23:22,697 INFO L174 SettingsManager]: Resetting UltimateCore preferences to default values [2018-04-12 10:23:22,708 INFO L177 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2018-04-12 10:23:22,709 INFO L174 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2018-04-12 10:23:22,709 INFO L174 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2018-04-12 10:23:22,710 INFO L174 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2018-04-12 10:23:22,712 INFO L174 SettingsManager]: Resetting LassoRanker preferences to default values [2018-04-12 10:23:22,714 INFO L174 SettingsManager]: Resetting Reaching Definitions preferences to default values [2018-04-12 10:23:22,715 INFO L174 SettingsManager]: Resetting SyntaxChecker preferences to default values [2018-04-12 10:23:22,715 INFO L177 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2018-04-12 10:23:22,715 INFO L174 SettingsManager]: Resetting LTL2Aut preferences to default values [2018-04-12 10:23:22,716 INFO L174 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2018-04-12 10:23:22,717 INFO L174 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2018-04-12 10:23:22,718 INFO L174 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2018-04-12 10:23:22,720 INFO L174 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2018-04-12 10:23:22,721 INFO L174 SettingsManager]: Resetting CodeCheck preferences to default values [2018-04-12 10:23:22,723 INFO L174 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2018-04-12 10:23:22,724 INFO L174 SettingsManager]: Resetting RCFGBuilder preferences to default values [2018-04-12 10:23:22,725 INFO L174 SettingsManager]: Resetting TraceAbstraction preferences to default values [2018-04-12 10:23:22,726 INFO L177 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... 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[2018-04-12 10:23:22,732 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 10:23:22,742 INFO L110 SettingsManager]: Loading preferences was successful [2018-04-12 10:23:22,742 INFO L112 SettingsManager]: Preferences different from defaults after loading the file: [2018-04-12 10:23:22,743 INFO L131 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2018-04-12 10:23:22,743 INFO L133 SettingsManager]: * Create parallel compositions if possible=false [2018-04-12 10:23:22,743 INFO L133 SettingsManager]: * Use SBE=true [2018-04-12 10:23:22,744 INFO L131 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2018-04-12 10:23:22,744 INFO L133 SettingsManager]: * sizeof long=4 [2018-04-12 10:23:22,744 INFO L133 SettingsManager]: * Check unreachability of error function in SV-COMP mode=false [2018-04-12 10:23:22,744 INFO L133 SettingsManager]: * Overapproximate operations on floating types=true [2018-04-12 10:23:22,744 INFO L133 SettingsManager]: * sizeof POINTER=4 [2018-04-12 10:23:22,744 INFO L133 SettingsManager]: * Check division by zero=IGNORE [2018-04-12 10:23:22,744 INFO L133 SettingsManager]: * Check for the main procedure if all allocated memory was freed=true [2018-04-12 10:23:22,745 INFO L133 SettingsManager]: * Bitprecise bitfields=true [2018-04-12 10:23:22,745 INFO L133 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2018-04-12 10:23:22,745 INFO L133 SettingsManager]: * sizeof long double=12 [2018-04-12 10:23:22,745 INFO L131 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2018-04-12 10:23:22,745 INFO L133 SettingsManager]: * Size of a code block=SequenceOfStatements [2018-04-12 10:23:22,745 INFO L133 SettingsManager]: * To the following directory=./dump/ [2018-04-12 10:23:22,746 INFO L133 SettingsManager]: * SMT solver=External_DefaultMode [2018-04-12 10:23:22,746 INFO L133 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2018-04-12 10:23:22,746 INFO L131 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2018-04-12 10:23:22,746 INFO L133 SettingsManager]: * Interpolant automaton=TWOTRACK [2018-04-12 10:23:22,746 INFO L133 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2018-04-12 10:23:22,746 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 10:23:22,777 INFO L81 nceAwareModelManager]: Repository-Root is: /tmp [2018-04-12 10:23:22,786 INFO L266 ainManager$Toolchain]: [Toolchain 1]: Parser(s) successfully (re)initialized [2018-04-12 10:23:22,789 INFO L222 ainManager$Toolchain]: [Toolchain 1]: Toolchain data selected. [2018-04-12 10:23:22,790 INFO L271 PluginConnector]: Initializing CDTParser... [2018-04-12 10:23:22,791 INFO L276 PluginConnector]: CDTParser initialized [2018-04-12 10:23:22,791 INFO L431 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /home/ultimate/work/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/svcomp/array-memsafety/openbsd_cstrcspn-alloca_true-valid-memsafety_true-termination.i [2018-04-12 10:23:23,107 INFO L225 CDTParser]: Created temporary CDT project at /home/ultimate/work/ultimate/releaseScripts/default/UAutomizer-linux/data/FLAG56f1f0f0a [2018-04-12 10:23:23,231 INFO L287 CDTParser]: IsIndexed: true [2018-04-12 10:23:23,231 INFO L288 CDTParser]: Found 1 translation units. [2018-04-12 10:23:23,232 INFO L168 CDTParser]: Scanning openbsd_cstrcspn-alloca_true-valid-memsafety_true-termination.i [2018-04-12 10:23:23,240 INFO L210 ultiparseSymbolTable]: Include resolver: [2018-04-12 10:23:23,241 INFO L215 ultiparseSymbolTable]: [2018-04-12 10:23:23,241 INFO L218 ultiparseSymbolTable]: Function table: [2018-04-12 10:23:23,241 INFO L221 ultiparseSymbolTable]: Function definition of __U_MULTI_fopenbsd_cstrcspn_alloca_true_valid_memsafety_true_termination_i____bswap_32 ('__bswap_32') in openbsd_cstrcspn-alloca_true-valid-memsafety_true-termination.i [2018-04-12 10:23:23,241 INFO L221 ultiparseSymbolTable]: Function definition of __U_MULTI_fopenbsd_cstrcspn_alloca_true_valid_memsafety_true_termination_i____bswap_64 ('__bswap_64') in openbsd_cstrcspn-alloca_true-valid-memsafety_true-termination.i [2018-04-12 10:23:23,241 INFO L221 ultiparseSymbolTable]: Function definition of null ('main') in openbsd_cstrcspn-alloca_true-valid-memsafety_true-termination.i [2018-04-12 10:23:23,241 INFO L221 ultiparseSymbolTable]: Function definition of __U_MULTI_fopenbsd_cstrcspn_alloca_true_valid_memsafety_true_termination_i__cstrcspn ('cstrcspn') in openbsd_cstrcspn-alloca_true-valid-memsafety_true-termination.i [2018-04-12 10:23:23,241 INFO L227 ultiparseSymbolTable]: Global variable table: [2018-04-12 10:23:23,241 INFO L230 ultiparseSymbolTable]: Global variable declaration of __U_MULTI_fopenbsd_cstrcspn_alloca_true_valid_memsafety_true_termination_i____uint16_t in openbsd_cstrcspn-alloca_true-valid-memsafety_true-termination.i [2018-04-12 10:23:23,241 INFO L230 ultiparseSymbolTable]: Global variable declaration of __U_MULTI_fopenbsd_cstrcspn_alloca_true_valid_memsafety_true_termination_i____fsid_t in openbsd_cstrcspn-alloca_true-valid-memsafety_true-termination.i [2018-04-12 10:23:23,241 INFO L230 ultiparseSymbolTable]: Global variable declaration of __U_MULTI_fopenbsd_cstrcspn_alloca_true_valid_memsafety_true_termination_i____off_t in openbsd_cstrcspn-alloca_true-valid-memsafety_true-termination.i [2018-04-12 10:23:23,241 INFO L230 ultiparseSymbolTable]: Global variable declaration of __U_MULTI_fopenbsd_cstrcspn_alloca_true_valid_memsafety_true_termination_i__daddr_t in openbsd_cstrcspn-alloca_true-valid-memsafety_true-termination.i [2018-04-12 10:23:23,242 INFO L230 ultiparseSymbolTable]: Global variable declaration of __U_MULTI_fopenbsd_cstrcspn_alloca_true_valid_memsafety_true_termination_i____quad_t in openbsd_cstrcspn-alloca_true-valid-memsafety_true-termination.i [2018-04-12 10:23:23,242 INFO L230 ultiparseSymbolTable]: Global variable declaration of __U_MULTI_fopenbsd_cstrcspn_alloca_true_valid_memsafety_true_termination_i____ino64_t in openbsd_cstrcspn-alloca_true-valid-memsafety_true-termination.i [2018-04-12 10:23:23,242 INFO L230 ultiparseSymbolTable]: Global variable declaration of __U_MULTI_fopenbsd_cstrcspn_alloca_true_valid_memsafety_true_termination_i____gid_t in openbsd_cstrcspn-alloca_true-valid-memsafety_true-termination.i [2018-04-12 10:23:23,242 INFO L230 ultiparseSymbolTable]: Global variable declaration of __U_MULTI_fopenbsd_cstrcspn_alloca_true_valid_memsafety_true_termination_i__clock_t in openbsd_cstrcspn-alloca_true-valid-memsafety_true-termination.i [2018-04-12 10:23:23,242 INFO L230 ultiparseSymbolTable]: Global variable declaration of __U_MULTI_fopenbsd_cstrcspn_alloca_true_valid_memsafety_true_termination_i____ino_t in openbsd_cstrcspn-alloca_true-valid-memsafety_true-termination.i [2018-04-12 10:23:23,242 INFO L230 ultiparseSymbolTable]: Global variable declaration of __U_MULTI_fopenbsd_cstrcspn_alloca_true_valid_memsafety_true_termination_i____pid_t in openbsd_cstrcspn-alloca_true-valid-memsafety_true-termination.i [2018-04-12 10:23:23,242 INFO L230 ultiparseSymbolTable]: Global variable declaration of __U_MULTI_fopenbsd_cstrcspn_alloca_true_valid_memsafety_true_termination_i__pthread_barrier_t in openbsd_cstrcspn-alloca_true-valid-memsafety_true-termination.i [2018-04-12 10:23:23,242 INFO L230 ultiparseSymbolTable]: Global variable declaration of __U_MULTI_fopenbsd_cstrcspn_alloca_true_valid_memsafety_true_termination_i__fd_mask in openbsd_cstrcspn-alloca_true-valid-memsafety_true-termination.i [2018-04-12 10:23:23,242 INFO L230 ultiparseSymbolTable]: Global variable declaration of __U_MULTI_fopenbsd_cstrcspn_alloca_true_valid_memsafety_true_termination_i__u_long in openbsd_cstrcspn-alloca_true-valid-memsafety_true-termination.i [2018-04-12 10:23:23,242 INFO L230 ultiparseSymbolTable]: Global variable declaration of __U_MULTI_fopenbsd_cstrcspn_alloca_true_valid_memsafety_true_termination_i__pthread_rwlockattr_t in openbsd_cstrcspn-alloca_true-valid-memsafety_true-termination.i [2018-04-12 10:23:23,242 INFO L230 ultiparseSymbolTable]: Global variable declaration of __U_MULTI_fopenbsd_cstrcspn_alloca_true_valid_memsafety_true_termination_i____u_quad_t in openbsd_cstrcspn-alloca_true-valid-memsafety_true-termination.i [2018-04-12 10:23:23,243 INFO L230 ultiparseSymbolTable]: Global variable declaration of __U_MULTI_fopenbsd_cstrcspn_alloca_true_valid_memsafety_true_termination_i__ushort in openbsd_cstrcspn-alloca_true-valid-memsafety_true-termination.i [2018-04-12 10:23:23,243 INFO L230 ultiparseSymbolTable]: Global variable declaration of __U_MULTI_fopenbsd_cstrcspn_alloca_true_valid_memsafety_true_termination_i__ulong in openbsd_cstrcspn-alloca_true-valid-memsafety_true-termination.i [2018-04-12 10:23:23,243 INFO L230 ultiparseSymbolTable]: Global variable declaration of __U_MULTI_fopenbsd_cstrcspn_alloca_true_valid_memsafety_true_termination_i__fsid_t in openbsd_cstrcspn-alloca_true-valid-memsafety_true-termination.i [2018-04-12 10:23:23,243 INFO L230 ultiparseSymbolTable]: Global variable declaration of __U_MULTI_fopenbsd_cstrcspn_alloca_true_valid_memsafety_true_termination_i__u_int32_t in openbsd_cstrcspn-alloca_true-valid-memsafety_true-termination.i [2018-04-12 10:23:23,243 INFO L230 ultiparseSymbolTable]: Global variable declaration of __U_MULTI_fopenbsd_cstrcspn_alloca_true_valid_memsafety_true_termination_i____daddr_t in openbsd_cstrcspn-alloca_true-valid-memsafety_true-termination.i [2018-04-12 10:23:23,243 INFO L230 ultiparseSymbolTable]: Global variable declaration of __U_MULTI_fopenbsd_cstrcspn_alloca_true_valid_memsafety_true_termination_i__clockid_t in openbsd_cstrcspn-alloca_true-valid-memsafety_true-termination.i [2018-04-12 10:23:23,243 INFO L230 ultiparseSymbolTable]: Global variable declaration of __U_MULTI_fopenbsd_cstrcspn_alloca_true_valid_memsafety_true_termination_i__suseconds_t in openbsd_cstrcspn-alloca_true-valid-memsafety_true-termination.i [2018-04-12 10:23:23,243 INFO L230 ultiparseSymbolTable]: Global variable declaration of __U_MULTI_fopenbsd_cstrcspn_alloca_true_valid_memsafety_true_termination_i__int64_t in openbsd_cstrcspn-alloca_true-valid-memsafety_true-termination.i [2018-04-12 10:23:23,243 INFO L230 ultiparseSymbolTable]: Global variable declaration of __U_MULTI_fopenbsd_cstrcspn_alloca_true_valid_memsafety_true_termination_i____WAIT_STATUS in openbsd_cstrcspn-alloca_true-valid-memsafety_true-termination.i [2018-04-12 10:23:23,243 INFO L230 ultiparseSymbolTable]: Global variable declaration of __U_MULTI_fopenbsd_cstrcspn_alloca_true_valid_memsafety_true_termination_i____clock_t in openbsd_cstrcspn-alloca_true-valid-memsafety_true-termination.i [2018-04-12 10:23:23,243 INFO L230 ultiparseSymbolTable]: Global variable declaration of __U_MULTI_fopenbsd_cstrcspn_alloca_true_valid_memsafety_true_termination_i____loff_t in openbsd_cstrcspn-alloca_true-valid-memsafety_true-termination.i [2018-04-12 10:23:23,243 INFO L230 ultiparseSymbolTable]: Global variable declaration of __U_MULTI_fopenbsd_cstrcspn_alloca_true_valid_memsafety_true_termination_i__pthread_condattr_t in openbsd_cstrcspn-alloca_true-valid-memsafety_true-termination.i [2018-04-12 10:23:23,243 INFO L230 ultiparseSymbolTable]: Global variable declaration of __U_MULTI_fopenbsd_cstrcspn_alloca_true_valid_memsafety_true_termination_i__u_int8_t in openbsd_cstrcspn-alloca_true-valid-memsafety_true-termination.i [2018-04-12 10:23:23,243 INFO L230 ultiparseSymbolTable]: Global variable declaration of __U_MULTI_fopenbsd_cstrcspn_alloca_true_valid_memsafety_true_termination_i____syscall_ulong_t in openbsd_cstrcspn-alloca_true-valid-memsafety_true-termination.i [2018-04-12 10:23:23,244 INFO L230 ultiparseSymbolTable]: Global variable declaration of __U_MULTI_fopenbsd_cstrcspn_alloca_true_valid_memsafety_true_termination_i__nlink_t in openbsd_cstrcspn-alloca_true-valid-memsafety_true-termination.i [2018-04-12 10:23:23,244 INFO L230 ultiparseSymbolTable]: Global variable declaration of __U_MULTI_fopenbsd_cstrcspn_alloca_true_valid_memsafety_true_termination_i__uint in openbsd_cstrcspn-alloca_true-valid-memsafety_true-termination.i [2018-04-12 10:23:23,244 INFO L230 ultiparseSymbolTable]: Global variable declaration of __U_MULTI_fopenbsd_cstrcspn_alloca_true_valid_memsafety_true_termination_i____fd_mask in openbsd_cstrcspn-alloca_true-valid-memsafety_true-termination.i [2018-04-12 10:23:23,244 INFO L230 ultiparseSymbolTable]: Global variable declaration of __U_MULTI_fopenbsd_cstrcspn_alloca_true_valid_memsafety_true_termination_i__pthread_rwlock_t in openbsd_cstrcspn-alloca_true-valid-memsafety_true-termination.i [2018-04-12 10:23:23,244 INFO L230 ultiparseSymbolTable]: Global variable declaration of __U_MULTI_fopenbsd_cstrcspn_alloca_true_valid_memsafety_true_termination_i____useconds_t in openbsd_cstrcspn-alloca_true-valid-memsafety_true-termination.i [2018-04-12 10:23:23,244 INFO L230 ultiparseSymbolTable]: Global variable declaration of __U_MULTI_fopenbsd_cstrcspn_alloca_true_valid_memsafety_true_termination_i____blksize_t in openbsd_cstrcspn-alloca_true-valid-memsafety_true-termination.i [2018-04-12 10:23:23,244 INFO L230 ultiparseSymbolTable]: Global variable declaration of __U_MULTI_fopenbsd_cstrcspn_alloca_true_valid_memsafety_true_termination_i__id_t in openbsd_cstrcspn-alloca_true-valid-memsafety_true-termination.i [2018-04-12 10:23:23,244 INFO L230 ultiparseSymbolTable]: Global variable declaration of __U_MULTI_fopenbsd_cstrcspn_alloca_true_valid_memsafety_true_termination_i____qaddr_t in openbsd_cstrcspn-alloca_true-valid-memsafety_true-termination.i [2018-04-12 10:23:23,244 INFO L230 ultiparseSymbolTable]: Global variable declaration of __U_MULTI_fopenbsd_cstrcspn_alloca_true_valid_memsafety_true_termination_i____fsblkcnt_t in openbsd_cstrcspn-alloca_true-valid-memsafety_true-termination.i [2018-04-12 10:23:23,244 INFO L230 ultiparseSymbolTable]: Global variable declaration of __U_MULTI_fopenbsd_cstrcspn_alloca_true_valid_memsafety_true_termination_i____sig_atomic_t in openbsd_cstrcspn-alloca_true-valid-memsafety_true-termination.i [2018-04-12 10:23:23,244 INFO L230 ultiparseSymbolTable]: Global variable declaration of __U_MULTI_fopenbsd_cstrcspn_alloca_true_valid_memsafety_true_termination_i____rlim64_t in openbsd_cstrcspn-alloca_true-valid-memsafety_true-termination.i [2018-04-12 10:23:23,244 INFO L230 ultiparseSymbolTable]: Global variable declaration of __U_MULTI_fopenbsd_cstrcspn_alloca_true_valid_memsafety_true_termination_i____uid_t in openbsd_cstrcspn-alloca_true-valid-memsafety_true-termination.i [2018-04-12 10:23:23,244 INFO L230 ultiparseSymbolTable]: Global variable declaration of __U_MULTI_fopenbsd_cstrcspn_alloca_true_valid_memsafety_true_termination_i____uint8_t in openbsd_cstrcspn-alloca_true-valid-memsafety_true-termination.i [2018-04-12 10:23:23,245 INFO L230 ultiparseSymbolTable]: Global variable declaration of __U_MULTI_fopenbsd_cstrcspn_alloca_true_valid_memsafety_true_termination_i__u_quad_t in openbsd_cstrcspn-alloca_true-valid-memsafety_true-termination.i [2018-04-12 10:23:23,245 INFO L230 ultiparseSymbolTable]: Global variable declaration of __U_MULTI_fopenbsd_cstrcspn_alloca_true_valid_memsafety_true_termination_i____uint64_t in openbsd_cstrcspn-alloca_true-valid-memsafety_true-termination.i [2018-04-12 10:23:23,245 INFO L230 ultiparseSymbolTable]: Global variable declaration of __U_MULTI_fopenbsd_cstrcspn_alloca_true_valid_memsafety_true_termination_i____fsword_t in openbsd_cstrcspn-alloca_true-valid-memsafety_true-termination.i [2018-04-12 10:23:23,245 INFO L230 ultiparseSymbolTable]: Global variable declaration of __U_MULTI_fopenbsd_cstrcspn_alloca_true_valid_memsafety_true_termination_i__loff_t in openbsd_cstrcspn-alloca_true-valid-memsafety_true-termination.i [2018-04-12 10:23:23,245 INFO L230 ultiparseSymbolTable]: Global variable declaration of __U_MULTI_fopenbsd_cstrcspn_alloca_true_valid_memsafety_true_termination_i__ssize_t in openbsd_cstrcspn-alloca_true-valid-memsafety_true-termination.i [2018-04-12 10:23:23,245 INFO L230 ultiparseSymbolTable]: Global variable declaration of __U_MULTI_fopenbsd_cstrcspn_alloca_true_valid_memsafety_true_termination_i____key_t in openbsd_cstrcspn-alloca_true-valid-memsafety_true-termination.i [2018-04-12 10:23:23,245 INFO L230 ultiparseSymbolTable]: Global variable declaration of __U_MULTI_fopenbsd_cstrcspn_alloca_true_valid_memsafety_true_termination_i____int64_t in openbsd_cstrcspn-alloca_true-valid-memsafety_true-termination.i [2018-04-12 10:23:23,245 INFO L230 ultiparseSymbolTable]: Global variable declaration of __U_MULTI_fopenbsd_cstrcspn_alloca_true_valid_memsafety_true_termination_i__sigset_t in openbsd_cstrcspn-alloca_true-valid-memsafety_true-termination.i [2018-04-12 10:23:23,245 INFO L230 ultiparseSymbolTable]: Global variable declaration of __U_MULTI_fopenbsd_cstrcspn_alloca_true_valid_memsafety_true_termination_i__pthread_mutex_t in openbsd_cstrcspn-alloca_true-valid-memsafety_true-termination.i [2018-04-12 10:23:23,245 INFO L230 ultiparseSymbolTable]: Global variable declaration of __U_MULTI_fopenbsd_cstrcspn_alloca_true_valid_memsafety_true_termination_i__register_t in openbsd_cstrcspn-alloca_true-valid-memsafety_true-termination.i [2018-04-12 10:23:23,245 INFO L230 ultiparseSymbolTable]: Global variable declaration of __U_MULTI_fopenbsd_cstrcspn_alloca_true_valid_memsafety_true_termination_i__pthread_barrierattr_t in openbsd_cstrcspn-alloca_true-valid-memsafety_true-termination.i [2018-04-12 10:23:23,245 INFO L230 ultiparseSymbolTable]: Global variable declaration of __U_MULTI_fopenbsd_cstrcspn_alloca_true_valid_memsafety_true_termination_i____syscall_slong_t in openbsd_cstrcspn-alloca_true-valid-memsafety_true-termination.i [2018-04-12 10:23:23,245 INFO L230 ultiparseSymbolTable]: Global variable declaration of __U_MULTI_fopenbsd_cstrcspn_alloca_true_valid_memsafety_true_termination_i__dev_t in openbsd_cstrcspn-alloca_true-valid-memsafety_true-termination.i [2018-04-12 10:23:23,246 INFO L230 ultiparseSymbolTable]: Global variable declaration of __U_MULTI_fopenbsd_cstrcspn_alloca_true_valid_memsafety_true_termination_i____u_int in openbsd_cstrcspn-alloca_true-valid-memsafety_true-termination.i [2018-04-12 10:23:23,246 INFO L230 ultiparseSymbolTable]: Global variable declaration of __U_MULTI_fopenbsd_cstrcspn_alloca_true_valid_memsafety_true_termination_i__time_t in openbsd_cstrcspn-alloca_true-valid-memsafety_true-termination.i [2018-04-12 10:23:23,246 INFO L230 ultiparseSymbolTable]: Global variable declaration of __U_MULTI_fopenbsd_cstrcspn_alloca_true_valid_memsafety_true_termination_i__pthread_key_t in openbsd_cstrcspn-alloca_true-valid-memsafety_true-termination.i [2018-04-12 10:23:23,246 INFO L230 ultiparseSymbolTable]: Global variable declaration of __U_MULTI_fopenbsd_cstrcspn_alloca_true_valid_memsafety_true_termination_i____blkcnt_t in openbsd_cstrcspn-alloca_true-valid-memsafety_true-termination.i [2018-04-12 10:23:23,246 INFO L230 ultiparseSymbolTable]: Global variable declaration of __U_MULTI_fopenbsd_cstrcspn_alloca_true_valid_memsafety_true_termination_i__fsfilcnt_t in openbsd_cstrcspn-alloca_true-valid-memsafety_true-termination.i [2018-04-12 10:23:23,246 INFO L230 ultiparseSymbolTable]: Global variable declaration of __U_MULTI_fopenbsd_cstrcspn_alloca_true_valid_memsafety_true_termination_i____ssize_t in openbsd_cstrcspn-alloca_true-valid-memsafety_true-termination.i [2018-04-12 10:23:23,246 INFO L230 ultiparseSymbolTable]: Global variable declaration of __U_MULTI_fopenbsd_cstrcspn_alloca_true_valid_memsafety_true_termination_i__int32_t in openbsd_cstrcspn-alloca_true-valid-memsafety_true-termination.i [2018-04-12 10:23:23,246 INFO L230 ultiparseSymbolTable]: Global variable declaration of __U_MULTI_fopenbsd_cstrcspn_alloca_true_valid_memsafety_true_termination_i__ino_t in openbsd_cstrcspn-alloca_true-valid-memsafety_true-termination.i [2018-04-12 10:23:23,246 INFO L230 ultiparseSymbolTable]: Global variable declaration of __U_MULTI_fopenbsd_cstrcspn_alloca_true_valid_memsafety_true_termination_i__pid_t in openbsd_cstrcspn-alloca_true-valid-memsafety_true-termination.i [2018-04-12 10:23:23,246 INFO L230 ultiparseSymbolTable]: Global variable declaration of __U_MULTI_fopenbsd_cstrcspn_alloca_true_valid_memsafety_true_termination_i____fsfilcnt64_t in openbsd_cstrcspn-alloca_true-valid-memsafety_true-termination.i [2018-04-12 10:23:23,247 INFO L230 ultiparseSymbolTable]: Global variable declaration of __U_MULTI_fopenbsd_cstrcspn_alloca_true_valid_memsafety_true_termination_i__int8_t in openbsd_cstrcspn-alloca_true-valid-memsafety_true-termination.i [2018-04-12 10:23:23,247 INFO L230 ultiparseSymbolTable]: Global variable declaration of __U_MULTI_fopenbsd_cstrcspn_alloca_true_valid_memsafety_true_termination_i__u_int64_t in openbsd_cstrcspn-alloca_true-valid-memsafety_true-termination.i [2018-04-12 10:23:23,247 INFO L230 ultiparseSymbolTable]: Global variable declaration of __U_MULTI_fopenbsd_cstrcspn_alloca_true_valid_memsafety_true_termination_i____mode_t in openbsd_cstrcspn-alloca_true-valid-memsafety_true-termination.i [2018-04-12 10:23:23,247 INFO L230 ultiparseSymbolTable]: Global variable declaration of __U_MULTI_fopenbsd_cstrcspn_alloca_true_valid_memsafety_true_termination_i____socklen_t in openbsd_cstrcspn-alloca_true-valid-memsafety_true-termination.i [2018-04-12 10:23:23,247 INFO L230 ultiparseSymbolTable]: Global variable declaration of __U_MULTI_fopenbsd_cstrcspn_alloca_true_valid_memsafety_true_termination_i____time_t in openbsd_cstrcspn-alloca_true-valid-memsafety_true-termination.i [2018-04-12 10:23:23,247 INFO L230 ultiparseSymbolTable]: Global variable declaration of __U_MULTI_fopenbsd_cstrcspn_alloca_true_valid_memsafety_true_termination_i__u_short in openbsd_cstrcspn-alloca_true-valid-memsafety_true-termination.i [2018-04-12 10:23:23,247 INFO L230 ultiparseSymbolTable]: Global variable declaration of __U_MULTI_fopenbsd_cstrcspn_alloca_true_valid_memsafety_true_termination_i____blkcnt64_t in openbsd_cstrcspn-alloca_true-valid-memsafety_true-termination.i [2018-04-12 10:23:23,247 INFO L230 ultiparseSymbolTable]: Global variable declaration of __U_MULTI_fopenbsd_cstrcspn_alloca_true_valid_memsafety_true_termination_i__ldiv_t in openbsd_cstrcspn-alloca_true-valid-memsafety_true-termination.i [2018-04-12 10:23:23,247 INFO L230 ultiparseSymbolTable]: Global variable declaration of __U_MULTI_fopenbsd_cstrcspn_alloca_true_valid_memsafety_true_termination_i__gid_t in openbsd_cstrcspn-alloca_true-valid-memsafety_true-termination.i [2018-04-12 10:23:23,247 INFO L230 ultiparseSymbolTable]: Global variable declaration of __U_MULTI_fopenbsd_cstrcspn_alloca_true_valid_memsafety_true_termination_i__u_int in openbsd_cstrcspn-alloca_true-valid-memsafety_true-termination.i [2018-04-12 10:23:23,247 INFO L230 ultiparseSymbolTable]: Global variable declaration of __U_MULTI_fopenbsd_cstrcspn_alloca_true_valid_memsafety_true_termination_i__timer_t in openbsd_cstrcspn-alloca_true-valid-memsafety_true-termination.i [2018-04-12 10:23:23,248 INFO L230 ultiparseSymbolTable]: Global variable declaration of __U_MULTI_fopenbsd_cstrcspn_alloca_true_valid_memsafety_true_termination_i____int8_t in openbsd_cstrcspn-alloca_true-valid-memsafety_true-termination.i [2018-04-12 10:23:23,248 INFO L230 ultiparseSymbolTable]: Global variable declaration of __U_MULTI_fopenbsd_cstrcspn_alloca_true_valid_memsafety_true_termination_i____fsblkcnt64_t in openbsd_cstrcspn-alloca_true-valid-memsafety_true-termination.i [2018-04-12 10:23:23,248 INFO L230 ultiparseSymbolTable]: Global variable declaration of __U_MULTI_fopenbsd_cstrcspn_alloca_true_valid_memsafety_true_termination_i__key_t in openbsd_cstrcspn-alloca_true-valid-memsafety_true-termination.i [2018-04-12 10:23:23,248 INFO L230 ultiparseSymbolTable]: Global variable declaration of __U_MULTI_fopenbsd_cstrcspn_alloca_true_valid_memsafety_true_termination_i____u_short in openbsd_cstrcspn-alloca_true-valid-memsafety_true-termination.i [2018-04-12 10:23:23,248 INFO L230 ultiparseSymbolTable]: Global variable declaration of __U_MULTI_fopenbsd_cstrcspn_alloca_true_valid_memsafety_true_termination_i__mode_t in openbsd_cstrcspn-alloca_true-valid-memsafety_true-termination.i [2018-04-12 10:23:23,248 INFO L230 ultiparseSymbolTable]: Global variable declaration of __U_MULTI_fopenbsd_cstrcspn_alloca_true_valid_memsafety_true_termination_i____fsfilcnt_t in openbsd_cstrcspn-alloca_true-valid-memsafety_true-termination.i [2018-04-12 10:23:23,248 INFO L230 ultiparseSymbolTable]: Global variable declaration of __U_MULTI_fopenbsd_cstrcspn_alloca_true_valid_memsafety_true_termination_i__pthread_mutexattr_t in openbsd_cstrcspn-alloca_true-valid-memsafety_true-termination.i [2018-04-12 10:23:23,248 INFO L230 ultiparseSymbolTable]: Global variable declaration of __U_MULTI_fopenbsd_cstrcspn_alloca_true_valid_memsafety_true_termination_i____nlink_t in openbsd_cstrcspn-alloca_true-valid-memsafety_true-termination.i [2018-04-12 10:23:23,248 INFO L230 ultiparseSymbolTable]: Global variable declaration of __U_MULTI_fopenbsd_cstrcspn_alloca_true_valid_memsafety_true_termination_i__fsblkcnt_t in openbsd_cstrcspn-alloca_true-valid-memsafety_true-termination.i [2018-04-12 10:23:23,248 INFO L230 ultiparseSymbolTable]: Global variable declaration of __U_MULTI_fopenbsd_cstrcspn_alloca_true_valid_memsafety_true_termination_i____timer_t in openbsd_cstrcspn-alloca_true-valid-memsafety_true-termination.i [2018-04-12 10:23:23,248 INFO L230 ultiparseSymbolTable]: Global variable declaration of __U_MULTI_fopenbsd_cstrcspn_alloca_true_valid_memsafety_true_termination_i____int32_t in openbsd_cstrcspn-alloca_true-valid-memsafety_true-termination.i [2018-04-12 10:23:23,248 INFO L230 ultiparseSymbolTable]: Global variable declaration of __U_MULTI_fopenbsd_cstrcspn_alloca_true_valid_memsafety_true_termination_i__pthread_t in openbsd_cstrcspn-alloca_true-valid-memsafety_true-termination.i [2018-04-12 10:23:23,249 INFO L230 ultiparseSymbolTable]: Global variable declaration of __U_MULTI_fopenbsd_cstrcspn_alloca_true_valid_memsafety_true_termination_i____id_t in openbsd_cstrcspn-alloca_true-valid-memsafety_true-termination.i [2018-04-12 10:23:23,249 INFO L230 ultiparseSymbolTable]: Global variable declaration of __U_MULTI_fopenbsd_cstrcspn_alloca_true_valid_memsafety_true_termination_i__wchar_t in openbsd_cstrcspn-alloca_true-valid-memsafety_true-termination.i [2018-04-12 10:23:23,249 INFO L230 ultiparseSymbolTable]: Global variable declaration of __U_MULTI_fopenbsd_cstrcspn_alloca_true_valid_memsafety_true_termination_i__fd_set in openbsd_cstrcspn-alloca_true-valid-memsafety_true-termination.i [2018-04-12 10:23:23,249 INFO L230 ultiparseSymbolTable]: Global variable declaration of __U_MULTI_fopenbsd_cstrcspn_alloca_true_valid_memsafety_true_termination_i__blksize_t in openbsd_cstrcspn-alloca_true-valid-memsafety_true-termination.i [2018-04-12 10:23:23,249 INFO L230 ultiparseSymbolTable]: Global variable declaration of __U_MULTI_fopenbsd_cstrcspn_alloca_true_valid_memsafety_true_termination_i__int16_t in openbsd_cstrcspn-alloca_true-valid-memsafety_true-termination.i [2018-04-12 10:23:23,249 INFO L230 ultiparseSymbolTable]: Global variable declaration of __U_MULTI_fopenbsd_cstrcspn_alloca_true_valid_memsafety_true_termination_i____dev_t in openbsd_cstrcspn-alloca_true-valid-memsafety_true-termination.i [2018-04-12 10:23:23,249 INFO L230 ultiparseSymbolTable]: Global variable declaration of __U_MULTI_fopenbsd_cstrcspn_alloca_true_valid_memsafety_true_termination_i__uid_t in openbsd_cstrcspn-alloca_true-valid-memsafety_true-termination.i [2018-04-12 10:23:23,249 INFO L230 ultiparseSymbolTable]: Global variable declaration of __U_MULTI_fopenbsd_cstrcspn_alloca_true_valid_memsafety_true_termination_i__lldiv_t in openbsd_cstrcspn-alloca_true-valid-memsafety_true-termination.i [2018-04-12 10:23:23,249 INFO L230 ultiparseSymbolTable]: Global variable declaration of __U_MULTI_fopenbsd_cstrcspn_alloca_true_valid_memsafety_true_termination_i__pthread_attr_t in openbsd_cstrcspn-alloca_true-valid-memsafety_true-termination.i [2018-04-12 10:23:23,249 INFO L230 ultiparseSymbolTable]: Global variable declaration of __U_MULTI_fopenbsd_cstrcspn_alloca_true_valid_memsafety_true_termination_i____off64_t in openbsd_cstrcspn-alloca_true-valid-memsafety_true-termination.i [2018-04-12 10:23:23,249 INFO L230 ultiparseSymbolTable]: Global variable declaration of __U_MULTI_fopenbsd_cstrcspn_alloca_true_valid_memsafety_true_termination_i____suseconds_t in openbsd_cstrcspn-alloca_true-valid-memsafety_true-termination.i [2018-04-12 10:23:23,249 INFO L230 ultiparseSymbolTable]: Global variable declaration of __U_MULTI_fopenbsd_cstrcspn_alloca_true_valid_memsafety_true_termination_i____caddr_t in openbsd_cstrcspn-alloca_true-valid-memsafety_true-termination.i [2018-04-12 10:23:23,249 INFO L230 ultiparseSymbolTable]: Global variable declaration of __U_MULTI_fopenbsd_cstrcspn_alloca_true_valid_memsafety_true_termination_i____u_char in openbsd_cstrcspn-alloca_true-valid-memsafety_true-termination.i [2018-04-12 10:23:23,249 INFO L230 ultiparseSymbolTable]: Global variable declaration of __U_MULTI_fopenbsd_cstrcspn_alloca_true_valid_memsafety_true_termination_i____rlim_t in openbsd_cstrcspn-alloca_true-valid-memsafety_true-termination.i [2018-04-12 10:23:23,249 INFO L230 ultiparseSymbolTable]: Global variable declaration of __U_MULTI_fopenbsd_cstrcspn_alloca_true_valid_memsafety_true_termination_i__caddr_t in openbsd_cstrcspn-alloca_true-valid-memsafety_true-termination.i [2018-04-12 10:23:23,250 INFO L230 ultiparseSymbolTable]: Global variable declaration of __U_MULTI_fopenbsd_cstrcspn_alloca_true_valid_memsafety_true_termination_i__pthread_cond_t in openbsd_cstrcspn-alloca_true-valid-memsafety_true-termination.i [2018-04-12 10:23:23,250 INFO L230 ultiparseSymbolTable]: Global variable declaration of __U_MULTI_fopenbsd_cstrcspn_alloca_true_valid_memsafety_true_termination_i__blkcnt_t in openbsd_cstrcspn-alloca_true-valid-memsafety_true-termination.i [2018-04-12 10:23:23,250 INFO L230 ultiparseSymbolTable]: Global variable declaration of __U_MULTI_fopenbsd_cstrcspn_alloca_true_valid_memsafety_true_termination_i__quad_t in openbsd_cstrcspn-alloca_true-valid-memsafety_true-termination.i [2018-04-12 10:23:23,250 INFO L230 ultiparseSymbolTable]: Global variable declaration of __U_MULTI_fopenbsd_cstrcspn_alloca_true_valid_memsafety_true_termination_i____clockid_t in openbsd_cstrcspn-alloca_true-valid-memsafety_true-termination.i [2018-04-12 10:23:23,250 INFO L230 ultiparseSymbolTable]: Global variable declaration of __U_MULTI_fopenbsd_cstrcspn_alloca_true_valid_memsafety_true_termination_i__pthread_spinlock_t in openbsd_cstrcspn-alloca_true-valid-memsafety_true-termination.i [2018-04-12 10:23:23,250 INFO L230 ultiparseSymbolTable]: Global variable declaration of __U_MULTI_fopenbsd_cstrcspn_alloca_true_valid_memsafety_true_termination_i____sigset_t in openbsd_cstrcspn-alloca_true-valid-memsafety_true-termination.i [2018-04-12 10:23:23,250 INFO L230 ultiparseSymbolTable]: Global variable declaration of __U_MULTI_fopenbsd_cstrcspn_alloca_true_valid_memsafety_true_termination_i____pthread_list_t in openbsd_cstrcspn-alloca_true-valid-memsafety_true-termination.i [2018-04-12 10:23:23,250 INFO L230 ultiparseSymbolTable]: Global variable declaration of __U_MULTI_fopenbsd_cstrcspn_alloca_true_valid_memsafety_true_termination_i__off_t in openbsd_cstrcspn-alloca_true-valid-memsafety_true-termination.i [2018-04-12 10:23:23,250 INFO L230 ultiparseSymbolTable]: Global variable declaration of __U_MULTI_fopenbsd_cstrcspn_alloca_true_valid_memsafety_true_termination_i__size_t in openbsd_cstrcspn-alloca_true-valid-memsafety_true-termination.i [2018-04-12 10:23:23,250 INFO L230 ultiparseSymbolTable]: Global variable declaration of __U_MULTI_fopenbsd_cstrcspn_alloca_true_valid_memsafety_true_termination_i____int16_t in openbsd_cstrcspn-alloca_true-valid-memsafety_true-termination.i [2018-04-12 10:23:23,250 INFO L230 ultiparseSymbolTable]: Global variable declaration of __U_MULTI_fopenbsd_cstrcspn_alloca_true_valid_memsafety_true_termination_i__u_char in openbsd_cstrcspn-alloca_true-valid-memsafety_true-termination.i [2018-04-12 10:23:23,250 INFO L230 ultiparseSymbolTable]: Global variable declaration of __U_MULTI_fopenbsd_cstrcspn_alloca_true_valid_memsafety_true_termination_i____uint32_t in openbsd_cstrcspn-alloca_true-valid-memsafety_true-termination.i [2018-04-12 10:23:23,250 INFO L230 ultiparseSymbolTable]: Global variable declaration of __U_MULTI_fopenbsd_cstrcspn_alloca_true_valid_memsafety_true_termination_i____u_long in openbsd_cstrcspn-alloca_true-valid-memsafety_true-termination.i [2018-04-12 10:23:23,250 INFO L230 ultiparseSymbolTable]: Global variable declaration of __U_MULTI_fopenbsd_cstrcspn_alloca_true_valid_memsafety_true_termination_i__pthread_once_t in openbsd_cstrcspn-alloca_true-valid-memsafety_true-termination.i [2018-04-12 10:23:23,251 INFO L230 ultiparseSymbolTable]: Global variable declaration of __U_MULTI_fopenbsd_cstrcspn_alloca_true_valid_memsafety_true_termination_i__div_t in openbsd_cstrcspn-alloca_true-valid-memsafety_true-termination.i [2018-04-12 10:23:23,251 INFO L230 ultiparseSymbolTable]: Global variable declaration of __U_MULTI_fopenbsd_cstrcspn_alloca_true_valid_memsafety_true_termination_i__u_int16_t in openbsd_cstrcspn-alloca_true-valid-memsafety_true-termination.i [2018-04-12 10:23:23,251 INFO L230 ultiparseSymbolTable]: Global variable declaration of __U_MULTI_fopenbsd_cstrcspn_alloca_true_valid_memsafety_true_termination_i____intptr_t in openbsd_cstrcspn-alloca_true-valid-memsafety_true-termination.i [2018-04-12 10:23:23,264 INFO L330 CDTParser]: Deleted temporary CDT project at /home/ultimate/work/ultimate/releaseScripts/default/UAutomizer-linux/data/FLAG56f1f0f0a [2018-04-12 10:23:23,267 INFO L304 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2018-04-12 10:23:23,268 INFO L131 ToolchainWalker]: Walking toolchain with 4 elements. [2018-04-12 10:23:23,269 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2018-04-12 10:23:23,269 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2018-04-12 10:23:23,272 INFO L276 PluginConnector]: CACSL2BoogieTranslator initialized [2018-04-12 10:23:23,273 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 12.04 10:23:23" (1/1) ... [2018-04-12 10:23:23,274 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@1a4ea829 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.04 10:23:23, skipping insertion in model container [2018-04-12 10:23:23,275 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 12.04 10:23:23" (1/1) ... [2018-04-12 10:23:23,285 INFO L167 Dispatcher]: Using SV-COMP mode [2018-04-12 10:23:23,307 INFO L167 Dispatcher]: Using SV-COMP mode [2018-04-12 10:23:23,426 INFO L175 PostProcessor]: Settings: Checked method=main [2018-04-12 10:23:23,462 INFO L175 PostProcessor]: Settings: Checked method=main [2018-04-12 10:23:23,467 INFO L100 SccComputation]: Graph consists of 0 InCaSumBalls and 112 non ball SCCs. Number of states in SCCs 112. [2018-04-12 10:23:23,496 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.04 10:23:23 WrapperNode [2018-04-12 10:23:23,496 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2018-04-12 10:23:23,497 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2018-04-12 10:23:23,497 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2018-04-12 10:23:23,497 INFO L276 PluginConnector]: Boogie Preprocessor initialized [2018-04-12 10:23:23,505 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.04 10:23:23" (1/1) ... [2018-04-12 10:23:23,505 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.04 10:23:23" (1/1) ... [2018-04-12 10:23:23,515 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.04 10:23:23" (1/1) ... [2018-04-12 10:23:23,516 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.04 10:23:23" (1/1) ... [2018-04-12 10:23:23,525 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.04 10:23:23" (1/1) ... [2018-04-12 10:23:23,529 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.04 10:23:23" (1/1) ... [2018-04-12 10:23:23,531 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.04 10:23:23" (1/1) ... [2018-04-12 10:23:23,534 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2018-04-12 10:23:23,535 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2018-04-12 10:23:23,535 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2018-04-12 10:23:23,535 INFO L276 PluginConnector]: RCFGBuilder initialized [2018-04-12 10:23:23,536 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.04 10:23:23" (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 10:23:23,640 INFO L136 BoogieDeclarations]: Found implementation of procedure ULTIMATE.init [2018-04-12 10:23:23,640 INFO L136 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2018-04-12 10:23:23,640 INFO L136 BoogieDeclarations]: Found implementation of procedure __U_MULTI_fopenbsd_cstrcspn_alloca_true_valid_memsafety_true_termination_i____bswap_32 [2018-04-12 10:23:23,641 INFO L136 BoogieDeclarations]: Found implementation of procedure __U_MULTI_fopenbsd_cstrcspn_alloca_true_valid_memsafety_true_termination_i____bswap_64 [2018-04-12 10:23:23,641 INFO L136 BoogieDeclarations]: Found implementation of procedure __U_MULTI_fopenbsd_cstrcspn_alloca_true_valid_memsafety_true_termination_i__cstrcspn [2018-04-12 10:23:23,641 INFO L136 BoogieDeclarations]: Found implementation of procedure main [2018-04-12 10:23:23,641 INFO L128 BoogieDeclarations]: Found specification of procedure __U_MULTI_fopenbsd_cstrcspn_alloca_true_valid_memsafety_true_termination_i____bswap_32 [2018-04-12 10:23:23,641 INFO L128 BoogieDeclarations]: Found specification of procedure __U_MULTI_fopenbsd_cstrcspn_alloca_true_valid_memsafety_true_termination_i____bswap_64 [2018-04-12 10:23:23,641 INFO L128 BoogieDeclarations]: Found specification of procedure __ctype_get_mb_cur_max [2018-04-12 10:23:23,641 INFO L128 BoogieDeclarations]: Found specification of procedure atof [2018-04-12 10:23:23,641 INFO L128 BoogieDeclarations]: Found specification of procedure atoi [2018-04-12 10:23:23,641 INFO L128 BoogieDeclarations]: Found specification of procedure atol [2018-04-12 10:23:23,641 INFO L128 BoogieDeclarations]: Found specification of procedure atoll [2018-04-12 10:23:23,641 INFO L128 BoogieDeclarations]: Found specification of procedure strtod [2018-04-12 10:23:23,641 INFO L128 BoogieDeclarations]: Found specification of procedure strtof [2018-04-12 10:23:23,642 INFO L128 BoogieDeclarations]: Found specification of procedure strtold [2018-04-12 10:23:23,642 INFO L128 BoogieDeclarations]: Found specification of procedure strtol [2018-04-12 10:23:23,642 INFO L128 BoogieDeclarations]: Found specification of procedure strtoul [2018-04-12 10:23:23,642 INFO L128 BoogieDeclarations]: Found specification of procedure strtoq [2018-04-12 10:23:23,642 INFO L128 BoogieDeclarations]: Found specification of procedure strtouq [2018-04-12 10:23:23,642 INFO L128 BoogieDeclarations]: Found specification of procedure strtoll [2018-04-12 10:23:23,642 INFO L128 BoogieDeclarations]: Found specification of procedure strtoull [2018-04-12 10:23:23,642 INFO L128 BoogieDeclarations]: Found specification of procedure l64a [2018-04-12 10:23:23,642 INFO L128 BoogieDeclarations]: Found specification of procedure a64l [2018-04-12 10:23:23,642 INFO L128 BoogieDeclarations]: Found specification of procedure select [2018-04-12 10:23:23,642 INFO L128 BoogieDeclarations]: Found specification of procedure pselect [2018-04-12 10:23:23,643 INFO L128 BoogieDeclarations]: Found specification of procedure gnu_dev_major [2018-04-12 10:23:23,643 INFO L128 BoogieDeclarations]: Found specification of procedure gnu_dev_minor [2018-04-12 10:23:23,643 INFO L128 BoogieDeclarations]: Found specification of procedure gnu_dev_makedev [2018-04-12 10:23:23,643 INFO L128 BoogieDeclarations]: Found specification of procedure random [2018-04-12 10:23:23,643 INFO L128 BoogieDeclarations]: Found specification of procedure srandom [2018-04-12 10:23:23,643 INFO L128 BoogieDeclarations]: Found specification of procedure initstate [2018-04-12 10:23:23,643 INFO L128 BoogieDeclarations]: Found specification of procedure setstate [2018-04-12 10:23:23,643 INFO L128 BoogieDeclarations]: Found specification of procedure random_r [2018-04-12 10:23:23,643 INFO L128 BoogieDeclarations]: Found specification of procedure srandom_r [2018-04-12 10:23:23,644 INFO L128 BoogieDeclarations]: Found specification of procedure initstate_r [2018-04-12 10:23:23,644 INFO L128 BoogieDeclarations]: Found specification of procedure setstate_r [2018-04-12 10:23:23,644 INFO L128 BoogieDeclarations]: Found specification of procedure rand [2018-04-12 10:23:23,644 INFO L128 BoogieDeclarations]: Found specification of procedure srand [2018-04-12 10:23:23,644 INFO L128 BoogieDeclarations]: Found specification of procedure rand_r [2018-04-12 10:23:23,644 INFO L128 BoogieDeclarations]: Found specification of procedure drand48 [2018-04-12 10:23:23,644 INFO L128 BoogieDeclarations]: Found specification of procedure erand48 [2018-04-12 10:23:23,644 INFO L128 BoogieDeclarations]: Found specification of procedure lrand48 [2018-04-12 10:23:23,644 INFO L128 BoogieDeclarations]: Found specification of procedure nrand48 [2018-04-12 10:23:23,645 INFO L128 BoogieDeclarations]: Found specification of procedure mrand48 [2018-04-12 10:23:23,645 INFO L128 BoogieDeclarations]: Found specification of procedure jrand48 [2018-04-12 10:23:23,645 INFO L128 BoogieDeclarations]: Found specification of procedure srand48 [2018-04-12 10:23:23,645 INFO L128 BoogieDeclarations]: Found specification of procedure seed48 [2018-04-12 10:23:23,645 INFO L128 BoogieDeclarations]: Found specification of procedure lcong48 [2018-04-12 10:23:23,645 INFO L128 BoogieDeclarations]: Found specification of procedure drand48_r [2018-04-12 10:23:23,645 INFO L128 BoogieDeclarations]: Found specification of procedure erand48_r [2018-04-12 10:23:23,645 INFO L128 BoogieDeclarations]: Found specification of procedure lrand48_r [2018-04-12 10:23:23,645 INFO L128 BoogieDeclarations]: Found specification of procedure nrand48_r [2018-04-12 10:23:23,646 INFO L128 BoogieDeclarations]: Found specification of procedure mrand48_r [2018-04-12 10:23:23,646 INFO L128 BoogieDeclarations]: Found specification of procedure jrand48_r [2018-04-12 10:23:23,646 INFO L128 BoogieDeclarations]: Found specification of procedure srand48_r [2018-04-12 10:23:23,646 INFO L128 BoogieDeclarations]: Found specification of procedure seed48_r [2018-04-12 10:23:23,646 INFO L128 BoogieDeclarations]: Found specification of procedure lcong48_r [2018-04-12 10:23:23,646 INFO L128 BoogieDeclarations]: Found specification of procedure malloc [2018-04-12 10:23:23,646 INFO L128 BoogieDeclarations]: Found specification of procedure calloc [2018-04-12 10:23:23,646 INFO L128 BoogieDeclarations]: Found specification of procedure realloc [2018-04-12 10:23:23,646 INFO L128 BoogieDeclarations]: Found specification of procedure free [2018-04-12 10:23:23,646 INFO L128 BoogieDeclarations]: Found specification of procedure cfree [2018-04-12 10:23:23,646 INFO L128 BoogieDeclarations]: Found specification of procedure alloca [2018-04-12 10:23:23,647 INFO L128 BoogieDeclarations]: Found specification of procedure valloc [2018-04-12 10:23:23,647 INFO L128 BoogieDeclarations]: Found specification of procedure posix_memalign [2018-04-12 10:23:23,647 INFO L128 BoogieDeclarations]: Found specification of procedure abort [2018-04-12 10:23:23,647 INFO L128 BoogieDeclarations]: Found specification of procedure atexit [2018-04-12 10:23:23,647 INFO L128 BoogieDeclarations]: Found specification of procedure on_exit [2018-04-12 10:23:23,647 INFO L128 BoogieDeclarations]: Found specification of procedure exit [2018-04-12 10:23:23,647 INFO L128 BoogieDeclarations]: Found specification of procedure _Exit [2018-04-12 10:23:23,647 INFO L128 BoogieDeclarations]: Found specification of procedure getenv [2018-04-12 10:23:23,647 INFO L128 BoogieDeclarations]: Found specification of procedure putenv [2018-04-12 10:23:23,647 INFO L128 BoogieDeclarations]: Found specification of procedure setenv [2018-04-12 10:23:23,647 INFO L128 BoogieDeclarations]: Found specification of procedure unsetenv [2018-04-12 10:23:23,647 INFO L128 BoogieDeclarations]: Found specification of procedure clearenv [2018-04-12 10:23:23,647 INFO L128 BoogieDeclarations]: Found specification of procedure mktemp [2018-04-12 10:23:23,647 INFO L128 BoogieDeclarations]: Found specification of procedure mkstemp [2018-04-12 10:23:23,648 INFO L128 BoogieDeclarations]: Found specification of procedure mkstemps [2018-04-12 10:23:23,648 INFO L128 BoogieDeclarations]: Found specification of procedure mkdtemp [2018-04-12 10:23:23,648 INFO L128 BoogieDeclarations]: Found specification of procedure system [2018-04-12 10:23:23,648 INFO L128 BoogieDeclarations]: Found specification of procedure realpath [2018-04-12 10:23:23,648 INFO L128 BoogieDeclarations]: Found specification of procedure bsearch [2018-04-12 10:23:23,648 INFO L128 BoogieDeclarations]: Found specification of procedure qsort [2018-04-12 10:23:23,648 INFO L128 BoogieDeclarations]: Found specification of procedure abs [2018-04-12 10:23:23,648 INFO L128 BoogieDeclarations]: Found specification of procedure labs [2018-04-12 10:23:23,648 INFO L128 BoogieDeclarations]: Found specification of procedure llabs [2018-04-12 10:23:23,648 INFO L128 BoogieDeclarations]: Found specification of procedure div [2018-04-12 10:23:23,648 INFO L128 BoogieDeclarations]: Found specification of procedure ldiv [2018-04-12 10:23:23,648 INFO L128 BoogieDeclarations]: Found specification of procedure lldiv [2018-04-12 10:23:23,648 INFO L128 BoogieDeclarations]: Found specification of procedure ecvt [2018-04-12 10:23:23,648 INFO L128 BoogieDeclarations]: Found specification of procedure fcvt [2018-04-12 10:23:23,648 INFO L128 BoogieDeclarations]: Found specification of procedure gcvt [2018-04-12 10:23:23,648 INFO L128 BoogieDeclarations]: Found specification of procedure qecvt [2018-04-12 10:23:23,648 INFO L128 BoogieDeclarations]: Found specification of procedure qfcvt [2018-04-12 10:23:23,648 INFO L128 BoogieDeclarations]: Found specification of procedure qgcvt [2018-04-12 10:23:23,649 INFO L128 BoogieDeclarations]: Found specification of procedure ecvt_r [2018-04-12 10:23:23,649 INFO L128 BoogieDeclarations]: Found specification of procedure fcvt_r [2018-04-12 10:23:23,649 INFO L128 BoogieDeclarations]: Found specification of procedure qecvt_r [2018-04-12 10:23:23,649 INFO L128 BoogieDeclarations]: Found specification of procedure qfcvt_r [2018-04-12 10:23:23,649 INFO L128 BoogieDeclarations]: Found specification of procedure mblen [2018-04-12 10:23:23,649 INFO L128 BoogieDeclarations]: Found specification of procedure mbtowc [2018-04-12 10:23:23,649 INFO L128 BoogieDeclarations]: Found specification of procedure wctomb [2018-04-12 10:23:23,649 INFO L128 BoogieDeclarations]: Found specification of procedure mbstowcs [2018-04-12 10:23:23,649 INFO L128 BoogieDeclarations]: Found specification of procedure wcstombs [2018-04-12 10:23:23,649 INFO L128 BoogieDeclarations]: Found specification of procedure rpmatch [2018-04-12 10:23:23,649 INFO L128 BoogieDeclarations]: Found specification of procedure getsubopt [2018-04-12 10:23:23,650 INFO L128 BoogieDeclarations]: Found specification of procedure getloadavg [2018-04-12 10:23:23,650 INFO L128 BoogieDeclarations]: Found specification of procedure __VERIFIER_nondet_int [2018-04-12 10:23:23,650 INFO L128 BoogieDeclarations]: Found specification of procedure __U_MULTI_fopenbsd_cstrcspn_alloca_true_valid_memsafety_true_termination_i__cstrcspn [2018-04-12 10:23:23,650 INFO L128 BoogieDeclarations]: Found specification of procedure read~int [2018-04-12 10:23:23,650 INFO L128 BoogieDeclarations]: Found specification of procedure main [2018-04-12 10:23:23,650 INFO L128 BoogieDeclarations]: Found specification of procedure #Ultimate.alloc [2018-04-12 10:23:23,650 INFO L128 BoogieDeclarations]: Found specification of procedure write~int [2018-04-12 10:23:23,650 INFO L128 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2018-04-12 10:23:23,650 INFO L128 BoogieDeclarations]: Found specification of procedure ULTIMATE.init [2018-04-12 10:23:23,650 INFO L128 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2018-04-12 10:23:23,651 INFO L128 BoogieDeclarations]: Found specification of procedure write~unchecked~int [2018-04-12 10:23:23,916 INFO L259 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2018-04-12 10:23:23,917 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 12.04 10:23:23 BoogieIcfgContainer [2018-04-12 10:23:23,917 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2018-04-12 10:23:23,917 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2018-04-12 10:23:23,917 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2018-04-12 10:23:23,919 INFO L276 PluginConnector]: TraceAbstraction initialized [2018-04-12 10:23:23,919 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 12.04 10:23:23" (1/3) ... [2018-04-12 10:23:23,920 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@21bd1065 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 12.04 10:23:23, skipping insertion in model container [2018-04-12 10:23:23,920 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.04 10:23:23" (2/3) ... [2018-04-12 10:23:23,920 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@21bd1065 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 12.04 10:23:23, skipping insertion in model container [2018-04-12 10:23:23,920 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 12.04 10:23:23" (3/3) ... [2018-04-12 10:23:23,921 INFO L107 eAbstractionObserver]: Analyzing ICFG openbsd_cstrcspn-alloca_true-valid-memsafety_true-termination.i [2018-04-12 10:23:23,926 INFO L131 ceAbstractionStarter]: Automizer settings: Hoare:false NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2018-04-12 10:23:23,930 INFO L143 ceAbstractionStarter]: Appying trace abstraction to program that has 9 error locations. [2018-04-12 10:23:23,957 INFO L128 ementStrategyFactory]: Using default assertion order modulation [2018-04-12 10:23:23,958 INFO L369 AbstractCegarLoop]: Interprodecural is true [2018-04-12 10:23:23,958 INFO L370 AbstractCegarLoop]: Hoare is false [2018-04-12 10:23:23,958 INFO L371 AbstractCegarLoop]: Compute interpolants for FPandBP [2018-04-12 10:23:23,958 INFO L372 AbstractCegarLoop]: Backedges is TWOTRACK [2018-04-12 10:23:23,958 INFO L373 AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2018-04-12 10:23:23,959 INFO L374 AbstractCegarLoop]: Difference is false [2018-04-12 10:23:23,959 INFO L375 AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA [2018-04-12 10:23:23,959 INFO L380 AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == AllErrorsAtOnce======== [2018-04-12 10:23:23,959 INFO L87 2NestedWordAutomaton]: Mode: main mode - execution starts in main procedure [2018-04-12 10:23:23,968 INFO L276 IsEmpty]: Start isEmpty. Operand 45 states. [2018-04-12 10:23:23,974 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 14 [2018-04-12 10:23:23,974 INFO L347 BasicCegarLoop]: Found error trace [2018-04-12 10:23:23,975 INFO L355 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2018-04-12 10:23:23,975 INFO L408 AbstractCegarLoop]: === Iteration 1 === [mainErr3RequiresViolation, mainErr1RequiresViolation, mainErr2RequiresViolation, mainErr4EnsuresViolationMEMORY_LEAK, mainErr0RequiresViolation, __U_MULTI_fopenbsd_cstrcspn_alloca_true_valid_memsafety_true_termination_i__cstrcspnErr2RequiresViolation, __U_MULTI_fopenbsd_cstrcspn_alloca_true_valid_memsafety_true_termination_i__cstrcspnErr0RequiresViolation, __U_MULTI_fopenbsd_cstrcspn_alloca_true_valid_memsafety_true_termination_i__cstrcspnErr1RequiresViolation, __U_MULTI_fopenbsd_cstrcspn_alloca_true_valid_memsafety_true_termination_i__cstrcspnErr3RequiresViolation]=== [2018-04-12 10:23:23,978 INFO L82 PathProgramCache]: Analyzing trace with hash 233534974, now seen corresponding path program 1 times [2018-04-12 10:23:23,979 INFO L213 ckRefinementStrategy]: Switched to mode SMTINTERPOL_TREE_INTERPOLANTS [2018-04-12 10:23:23,979 INFO L68 tionRefinementEngine]: Using refinement strategy CamelRefinementStrategy [2018-04-12 10:23:24,009 INFO L119 rtionOrderModulation]: Craig nested/tree interpolation forces the following order [2018-04-12 10:23:24,009 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-04-12 10:23:24,009 INFO L119 rtionOrderModulation]: Craig nested/tree interpolation forces the following order [2018-04-12 10:23:24,040 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-04-12 10:23:24,045 WARN L250 erpolLogProxyWrapper]: Using partial proofs (cut at CNF-level). Set option :produce-proofs to true to get complete proofs. [2018-04-12 10:23:24,105 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 10:23:24,106 INFO L320 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2018-04-12 10:23:24,106 INFO L335 seRefinementStrategy]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2018-04-12 10:23:24,107 INFO L442 AbstractCegarLoop]: Interpolant automaton has 4 states [2018-04-12 10:23:24,116 INFO L132 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2018-04-12 10:23:24,116 INFO L133 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2018-04-12 10:23:24,118 INFO L87 Difference]: Start difference. First operand 45 states. Second operand 4 states. [2018-04-12 10:23:24,167 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-04-12 10:23:24,167 INFO L93 Difference]: Finished difference Result 44 states and 47 transitions. [2018-04-12 10:23:24,167 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2018-04-12 10:23:24,168 INFO L78 Accepts]: Start accepts. Automaton has 4 states. Word has length 13 [2018-04-12 10:23:24,168 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-04-12 10:23:24,174 INFO L225 Difference]: With dead ends: 44 [2018-04-12 10:23:24,174 INFO L226 Difference]: Without dead ends: 41 [2018-04-12 10:23:24,175 INFO L567 BasicCegarLoop]: 0 DeclaredPredicates, 5 GetRequests, 2 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 10:23:24,185 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 41 states. [2018-04-12 10:23:24,196 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 41 to 41. [2018-04-12 10:23:24,197 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 41 states. [2018-04-12 10:23:24,198 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 41 states to 41 states and 44 transitions. [2018-04-12 10:23:24,199 INFO L78 Accepts]: Start accepts. Automaton has 41 states and 44 transitions. Word has length 13 [2018-04-12 10:23:24,199 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-04-12 10:23:24,199 INFO L459 AbstractCegarLoop]: Abstraction has 41 states and 44 transitions. [2018-04-12 10:23:24,199 INFO L460 AbstractCegarLoop]: Interpolant automaton has 4 states. [2018-04-12 10:23:24,200 INFO L276 IsEmpty]: Start isEmpty. Operand 41 states and 44 transitions. [2018-04-12 10:23:24,200 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 14 [2018-04-12 10:23:24,200 INFO L347 BasicCegarLoop]: Found error trace [2018-04-12 10:23:24,200 INFO L355 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2018-04-12 10:23:24,200 INFO L408 AbstractCegarLoop]: === Iteration 2 === [mainErr3RequiresViolation, mainErr1RequiresViolation, mainErr2RequiresViolation, mainErr4EnsuresViolationMEMORY_LEAK, mainErr0RequiresViolation, __U_MULTI_fopenbsd_cstrcspn_alloca_true_valid_memsafety_true_termination_i__cstrcspnErr2RequiresViolation, __U_MULTI_fopenbsd_cstrcspn_alloca_true_valid_memsafety_true_termination_i__cstrcspnErr0RequiresViolation, __U_MULTI_fopenbsd_cstrcspn_alloca_true_valid_memsafety_true_termination_i__cstrcspnErr1RequiresViolation, __U_MULTI_fopenbsd_cstrcspn_alloca_true_valid_memsafety_true_termination_i__cstrcspnErr3RequiresViolation]=== [2018-04-12 10:23:24,200 INFO L82 PathProgramCache]: Analyzing trace with hash 233534975, now seen corresponding path program 1 times [2018-04-12 10:23:24,200 INFO L213 ckRefinementStrategy]: Switched to mode SMTINTERPOL_TREE_INTERPOLANTS [2018-04-12 10:23:24,200 INFO L68 tionRefinementEngine]: Using refinement strategy CamelRefinementStrategy [2018-04-12 10:23:24,201 INFO L119 rtionOrderModulation]: Craig nested/tree interpolation forces the following order [2018-04-12 10:23:24,201 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-04-12 10:23:24,201 INFO L119 rtionOrderModulation]: Craig nested/tree interpolation forces the following order [2018-04-12 10:23:24,213 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-04-12 10:23:24,214 WARN L250 erpolLogProxyWrapper]: Using partial proofs (cut at CNF-level). Set option :produce-proofs to true to get complete proofs. [2018-04-12 10:23:24,286 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 10:23:24,286 INFO L320 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2018-04-12 10:23:24,287 INFO L335 seRefinementStrategy]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2018-04-12 10:23:24,287 INFO L442 AbstractCegarLoop]: Interpolant automaton has 6 states [2018-04-12 10:23:24,288 INFO L132 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2018-04-12 10:23:24,288 INFO L133 InterpolantAutomaton]: CoverageRelationStatistics Valid=13, Invalid=17, Unknown=0, NotChecked=0, Total=30 [2018-04-12 10:23:24,288 INFO L87 Difference]: Start difference. First operand 41 states and 44 transitions. Second operand 6 states. [2018-04-12 10:23:24,332 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-04-12 10:23:24,333 INFO L93 Difference]: Finished difference Result 40 states and 43 transitions. [2018-04-12 10:23:24,333 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2018-04-12 10:23:24,333 INFO L78 Accepts]: Start accepts. Automaton has 6 states. Word has length 13 [2018-04-12 10:23:24,333 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-04-12 10:23:24,334 INFO L225 Difference]: With dead ends: 40 [2018-04-12 10:23:24,334 INFO L226 Difference]: Without dead ends: 40 [2018-04-12 10:23:24,334 INFO L567 BasicCegarLoop]: 0 DeclaredPredicates, 6 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 5 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=19, Invalid=23, Unknown=0, NotChecked=0, Total=42 [2018-04-12 10:23:24,335 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 40 states. [2018-04-12 10:23:24,341 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 40 to 40. [2018-04-12 10:23:24,341 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 40 states. [2018-04-12 10:23:24,342 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 40 states to 40 states and 43 transitions. [2018-04-12 10:23:24,342 INFO L78 Accepts]: Start accepts. Automaton has 40 states and 43 transitions. Word has length 13 [2018-04-12 10:23:24,342 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-04-12 10:23:24,342 INFO L459 AbstractCegarLoop]: Abstraction has 40 states and 43 transitions. [2018-04-12 10:23:24,342 INFO L460 AbstractCegarLoop]: Interpolant automaton has 6 states. [2018-04-12 10:23:24,342 INFO L276 IsEmpty]: Start isEmpty. Operand 40 states and 43 transitions. [2018-04-12 10:23:24,343 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 15 [2018-04-12 10:23:24,343 INFO L347 BasicCegarLoop]: Found error trace [2018-04-12 10:23:24,343 INFO L355 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2018-04-12 10:23:24,343 INFO L408 AbstractCegarLoop]: === Iteration 3 === [mainErr3RequiresViolation, mainErr1RequiresViolation, mainErr2RequiresViolation, mainErr4EnsuresViolationMEMORY_LEAK, mainErr0RequiresViolation, __U_MULTI_fopenbsd_cstrcspn_alloca_true_valid_memsafety_true_termination_i__cstrcspnErr2RequiresViolation, __U_MULTI_fopenbsd_cstrcspn_alloca_true_valid_memsafety_true_termination_i__cstrcspnErr0RequiresViolation, __U_MULTI_fopenbsd_cstrcspn_alloca_true_valid_memsafety_true_termination_i__cstrcspnErr1RequiresViolation, __U_MULTI_fopenbsd_cstrcspn_alloca_true_valid_memsafety_true_termination_i__cstrcspnErr3RequiresViolation]=== [2018-04-12 10:23:24,343 INFO L82 PathProgramCache]: Analyzing trace with hash -1350350365, now seen corresponding path program 1 times [2018-04-12 10:23:24,343 INFO L213 ckRefinementStrategy]: Switched to mode SMTINTERPOL_TREE_INTERPOLANTS [2018-04-12 10:23:24,343 INFO L68 tionRefinementEngine]: Using refinement strategy CamelRefinementStrategy [2018-04-12 10:23:24,344 INFO L119 rtionOrderModulation]: Craig nested/tree interpolation forces the following order [2018-04-12 10:23:24,344 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-04-12 10:23:24,344 INFO L119 rtionOrderModulation]: Craig nested/tree interpolation forces the following order [2018-04-12 10:23:24,353 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-04-12 10:23:24,354 WARN L250 erpolLogProxyWrapper]: Using partial proofs (cut at CNF-level). Set option :produce-proofs to true to get complete proofs. [2018-04-12 10:23:24,372 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-04-12 10:23:24,373 INFO L320 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2018-04-12 10:23:24,373 INFO L335 seRefinementStrategy]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2018-04-12 10:23:24,373 INFO L442 AbstractCegarLoop]: Interpolant automaton has 4 states [2018-04-12 10:23:24,373 INFO L132 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2018-04-12 10:23:24,373 INFO L133 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2018-04-12 10:23:24,373 INFO L87 Difference]: Start difference. First operand 40 states and 43 transitions. Second operand 4 states. [2018-04-12 10:23:24,401 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-04-12 10:23:24,401 INFO L93 Difference]: Finished difference Result 39 states and 42 transitions. [2018-04-12 10:23:24,402 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2018-04-12 10:23:24,402 INFO L78 Accepts]: Start accepts. Automaton has 4 states. Word has length 14 [2018-04-12 10:23:24,402 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-04-12 10:23:24,402 INFO L225 Difference]: With dead ends: 39 [2018-04-12 10:23:24,403 INFO L226 Difference]: Without dead ends: 39 [2018-04-12 10:23:24,403 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 10:23:24,403 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 39 states. [2018-04-12 10:23:24,405 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 39 to 39. [2018-04-12 10:23:24,405 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 39 states. [2018-04-12 10:23:24,406 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 39 states to 39 states and 42 transitions. [2018-04-12 10:23:24,406 INFO L78 Accepts]: Start accepts. Automaton has 39 states and 42 transitions. Word has length 14 [2018-04-12 10:23:24,406 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-04-12 10:23:24,406 INFO L459 AbstractCegarLoop]: Abstraction has 39 states and 42 transitions. [2018-04-12 10:23:24,407 INFO L460 AbstractCegarLoop]: Interpolant automaton has 4 states. [2018-04-12 10:23:24,407 INFO L276 IsEmpty]: Start isEmpty. Operand 39 states and 42 transitions. [2018-04-12 10:23:24,407 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 15 [2018-04-12 10:23:24,407 INFO L347 BasicCegarLoop]: Found error trace [2018-04-12 10:23:24,407 INFO L355 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2018-04-12 10:23:24,407 INFO L408 AbstractCegarLoop]: === Iteration 4 === [mainErr3RequiresViolation, mainErr1RequiresViolation, mainErr2RequiresViolation, mainErr4EnsuresViolationMEMORY_LEAK, mainErr0RequiresViolation, __U_MULTI_fopenbsd_cstrcspn_alloca_true_valid_memsafety_true_termination_i__cstrcspnErr2RequiresViolation, __U_MULTI_fopenbsd_cstrcspn_alloca_true_valid_memsafety_true_termination_i__cstrcspnErr0RequiresViolation, __U_MULTI_fopenbsd_cstrcspn_alloca_true_valid_memsafety_true_termination_i__cstrcspnErr1RequiresViolation, __U_MULTI_fopenbsd_cstrcspn_alloca_true_valid_memsafety_true_termination_i__cstrcspnErr3RequiresViolation]=== [2018-04-12 10:23:24,407 INFO L82 PathProgramCache]: Analyzing trace with hash -1350350364, now seen corresponding path program 1 times [2018-04-12 10:23:24,407 INFO L213 ckRefinementStrategy]: Switched to mode SMTINTERPOL_TREE_INTERPOLANTS [2018-04-12 10:23:24,408 INFO L68 tionRefinementEngine]: Using refinement strategy CamelRefinementStrategy [2018-04-12 10:23:24,408 INFO L119 rtionOrderModulation]: Craig nested/tree interpolation forces the following order [2018-04-12 10:23:24,408 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-04-12 10:23:24,408 INFO L119 rtionOrderModulation]: Craig nested/tree interpolation forces the following order [2018-04-12 10:23:24,418 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-04-12 10:23:24,419 WARN L250 erpolLogProxyWrapper]: Using partial proofs (cut at CNF-level). Set option :produce-proofs to true to get complete proofs. [2018-04-12 10:23:24,463 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 10:23:24,463 INFO L320 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2018-04-12 10:23:24,463 INFO L335 seRefinementStrategy]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2018-04-12 10:23:24,464 INFO L442 AbstractCegarLoop]: Interpolant automaton has 5 states [2018-04-12 10:23:24,464 INFO L132 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2018-04-12 10:23:24,464 INFO L133 InterpolantAutomaton]: CoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2018-04-12 10:23:24,464 INFO L87 Difference]: Start difference. First operand 39 states and 42 transitions. Second operand 5 states. [2018-04-12 10:23:24,489 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-04-12 10:23:24,489 INFO L93 Difference]: Finished difference Result 38 states and 41 transitions. [2018-04-12 10:23:24,489 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2018-04-12 10:23:24,489 INFO L78 Accepts]: Start accepts. Automaton has 5 states. Word has length 14 [2018-04-12 10:23:24,490 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-04-12 10:23:24,490 INFO L225 Difference]: With dead ends: 38 [2018-04-12 10:23:24,490 INFO L226 Difference]: Without dead ends: 38 [2018-04-12 10:23:24,490 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 10:23:24,490 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 38 states. [2018-04-12 10:23:24,491 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 38 to 38. [2018-04-12 10:23:24,492 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 38 states. [2018-04-12 10:23:24,492 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 38 states to 38 states and 41 transitions. [2018-04-12 10:23:24,492 INFO L78 Accepts]: Start accepts. Automaton has 38 states and 41 transitions. Word has length 14 [2018-04-12 10:23:24,492 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-04-12 10:23:24,492 INFO L459 AbstractCegarLoop]: Abstraction has 38 states and 41 transitions. [2018-04-12 10:23:24,492 INFO L460 AbstractCegarLoop]: Interpolant automaton has 5 states. [2018-04-12 10:23:24,492 INFO L276 IsEmpty]: Start isEmpty. Operand 38 states and 41 transitions. [2018-04-12 10:23:24,493 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 20 [2018-04-12 10:23:24,493 INFO L347 BasicCegarLoop]: Found error trace [2018-04-12 10:23:24,493 INFO L355 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2018-04-12 10:23:24,493 INFO L408 AbstractCegarLoop]: === Iteration 5 === [mainErr3RequiresViolation, mainErr1RequiresViolation, mainErr2RequiresViolation, mainErr4EnsuresViolationMEMORY_LEAK, mainErr0RequiresViolation, __U_MULTI_fopenbsd_cstrcspn_alloca_true_valid_memsafety_true_termination_i__cstrcspnErr2RequiresViolation, __U_MULTI_fopenbsd_cstrcspn_alloca_true_valid_memsafety_true_termination_i__cstrcspnErr0RequiresViolation, __U_MULTI_fopenbsd_cstrcspn_alloca_true_valid_memsafety_true_termination_i__cstrcspnErr1RequiresViolation, __U_MULTI_fopenbsd_cstrcspn_alloca_true_valid_memsafety_true_termination_i__cstrcspnErr3RequiresViolation]=== [2018-04-12 10:23:24,493 INFO L82 PathProgramCache]: Analyzing trace with hash -1574771629, now seen corresponding path program 1 times [2018-04-12 10:23:24,493 INFO L213 ckRefinementStrategy]: Switched to mode SMTINTERPOL_TREE_INTERPOLANTS [2018-04-12 10:23:24,493 INFO L68 tionRefinementEngine]: Using refinement strategy CamelRefinementStrategy [2018-04-12 10:23:24,494 INFO L119 rtionOrderModulation]: Craig nested/tree interpolation forces the following order [2018-04-12 10:23:24,494 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-04-12 10:23:24,494 INFO L119 rtionOrderModulation]: Craig nested/tree interpolation forces the following order [2018-04-12 10:23:24,504 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-04-12 10:23:24,505 WARN L250 erpolLogProxyWrapper]: Using partial proofs (cut at CNF-level). Set option :produce-proofs to true to get complete proofs. [2018-04-12 10:23:24,533 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 10:23:24,533 INFO L320 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2018-04-12 10:23:24,534 INFO L335 seRefinementStrategy]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2018-04-12 10:23:24,534 INFO L442 AbstractCegarLoop]: Interpolant automaton has 6 states [2018-04-12 10:23:24,534 INFO L132 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2018-04-12 10:23:24,534 INFO L133 InterpolantAutomaton]: CoverageRelationStatistics Valid=9, Invalid=21, Unknown=0, NotChecked=0, Total=30 [2018-04-12 10:23:24,534 INFO L87 Difference]: Start difference. First operand 38 states and 41 transitions. Second operand 6 states. [2018-04-12 10:23:24,577 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-04-12 10:23:24,578 INFO L93 Difference]: Finished difference Result 37 states and 40 transitions. [2018-04-12 10:23:24,578 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2018-04-12 10:23:24,578 INFO L78 Accepts]: Start accepts. Automaton has 6 states. Word has length 19 [2018-04-12 10:23:24,578 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-04-12 10:23:24,578 INFO L225 Difference]: With dead ends: 37 [2018-04-12 10:23:24,578 INFO L226 Difference]: Without dead ends: 37 [2018-04-12 10:23:24,579 INFO L567 BasicCegarLoop]: 0 DeclaredPredicates, 7 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 6 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=19, Invalid=37, Unknown=0, NotChecked=0, Total=56 [2018-04-12 10:23:24,579 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 37 states. [2018-04-12 10:23:24,580 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 37 to 37. [2018-04-12 10:23:24,580 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 37 states. [2018-04-12 10:23:24,580 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 37 states to 37 states and 40 transitions. [2018-04-12 10:23:24,580 INFO L78 Accepts]: Start accepts. Automaton has 37 states and 40 transitions. Word has length 19 [2018-04-12 10:23:24,581 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-04-12 10:23:24,581 INFO L459 AbstractCegarLoop]: Abstraction has 37 states and 40 transitions. [2018-04-12 10:23:24,581 INFO L460 AbstractCegarLoop]: Interpolant automaton has 6 states. [2018-04-12 10:23:24,581 INFO L276 IsEmpty]: Start isEmpty. Operand 37 states and 40 transitions. [2018-04-12 10:23:24,581 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 20 [2018-04-12 10:23:24,581 INFO L347 BasicCegarLoop]: Found error trace [2018-04-12 10:23:24,581 INFO L355 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2018-04-12 10:23:24,581 INFO L408 AbstractCegarLoop]: === Iteration 6 === [mainErr3RequiresViolation, mainErr1RequiresViolation, mainErr2RequiresViolation, mainErr4EnsuresViolationMEMORY_LEAK, mainErr0RequiresViolation, __U_MULTI_fopenbsd_cstrcspn_alloca_true_valid_memsafety_true_termination_i__cstrcspnErr2RequiresViolation, __U_MULTI_fopenbsd_cstrcspn_alloca_true_valid_memsafety_true_termination_i__cstrcspnErr0RequiresViolation, __U_MULTI_fopenbsd_cstrcspn_alloca_true_valid_memsafety_true_termination_i__cstrcspnErr1RequiresViolation, __U_MULTI_fopenbsd_cstrcspn_alloca_true_valid_memsafety_true_termination_i__cstrcspnErr3RequiresViolation]=== [2018-04-12 10:23:24,581 INFO L82 PathProgramCache]: Analyzing trace with hash -1574771628, now seen corresponding path program 1 times [2018-04-12 10:23:24,581 INFO L213 ckRefinementStrategy]: Switched to mode SMTINTERPOL_TREE_INTERPOLANTS [2018-04-12 10:23:24,581 INFO L68 tionRefinementEngine]: Using refinement strategy CamelRefinementStrategy [2018-04-12 10:23:24,582 INFO L119 rtionOrderModulation]: Craig nested/tree interpolation forces the following order [2018-04-12 10:23:24,582 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-04-12 10:23:24,582 INFO L119 rtionOrderModulation]: Craig nested/tree interpolation forces the following order [2018-04-12 10:23:24,590 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-04-12 10:23:24,591 WARN L250 erpolLogProxyWrapper]: Using partial proofs (cut at CNF-level). Set option :produce-proofs to true to get complete proofs. [2018-04-12 10:23:24,675 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 10:23:24,675 INFO L320 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2018-04-12 10:23:24,675 INFO L335 seRefinementStrategy]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2018-04-12 10:23:24,676 INFO L442 AbstractCegarLoop]: Interpolant automaton has 9 states [2018-04-12 10:23:24,676 INFO L132 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2018-04-12 10:23:24,676 INFO L133 InterpolantAutomaton]: CoverageRelationStatistics Valid=17, Invalid=55, Unknown=0, NotChecked=0, Total=72 [2018-04-12 10:23:24,676 INFO L87 Difference]: Start difference. First operand 37 states and 40 transitions. Second operand 9 states. [2018-04-12 10:23:24,787 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-04-12 10:23:24,788 INFO L93 Difference]: Finished difference Result 41 states and 44 transitions. [2018-04-12 10:23:24,788 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 10 states. [2018-04-12 10:23:24,788 INFO L78 Accepts]: Start accepts. Automaton has 9 states. Word has length 19 [2018-04-12 10:23:24,788 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-04-12 10:23:24,788 INFO L225 Difference]: With dead ends: 41 [2018-04-12 10:23:24,788 INFO L226 Difference]: Without dead ends: 41 [2018-04-12 10:23:24,789 INFO L567 BasicCegarLoop]: 0 DeclaredPredicates, 13 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 12 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 21 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=43, Invalid=139, Unknown=0, NotChecked=0, Total=182 [2018-04-12 10:23:24,789 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 41 states. [2018-04-12 10:23:24,790 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 41 to 40. [2018-04-12 10:23:24,791 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 40 states. [2018-04-12 10:23:24,791 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 40 states to 40 states and 43 transitions. [2018-04-12 10:23:24,791 INFO L78 Accepts]: Start accepts. Automaton has 40 states and 43 transitions. Word has length 19 [2018-04-12 10:23:24,791 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-04-12 10:23:24,791 INFO L459 AbstractCegarLoop]: Abstraction has 40 states and 43 transitions. [2018-04-12 10:23:24,791 INFO L460 AbstractCegarLoop]: Interpolant automaton has 9 states. [2018-04-12 10:23:24,791 INFO L276 IsEmpty]: Start isEmpty. Operand 40 states and 43 transitions. [2018-04-12 10:23:24,792 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 23 [2018-04-12 10:23:24,792 INFO L347 BasicCegarLoop]: Found error trace [2018-04-12 10:23:24,792 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] [2018-04-12 10:23:24,792 INFO L408 AbstractCegarLoop]: === Iteration 7 === [mainErr3RequiresViolation, mainErr1RequiresViolation, mainErr2RequiresViolation, mainErr4EnsuresViolationMEMORY_LEAK, mainErr0RequiresViolation, __U_MULTI_fopenbsd_cstrcspn_alloca_true_valid_memsafety_true_termination_i__cstrcspnErr2RequiresViolation, __U_MULTI_fopenbsd_cstrcspn_alloca_true_valid_memsafety_true_termination_i__cstrcspnErr0RequiresViolation, __U_MULTI_fopenbsd_cstrcspn_alloca_true_valid_memsafety_true_termination_i__cstrcspnErr1RequiresViolation, __U_MULTI_fopenbsd_cstrcspn_alloca_true_valid_memsafety_true_termination_i__cstrcspnErr3RequiresViolation]=== [2018-04-12 10:23:24,792 INFO L82 PathProgramCache]: Analyzing trace with hash -93842083, now seen corresponding path program 1 times [2018-04-12 10:23:24,792 INFO L213 ckRefinementStrategy]: Switched to mode SMTINTERPOL_TREE_INTERPOLANTS [2018-04-12 10:23:24,792 INFO L68 tionRefinementEngine]: Using refinement strategy CamelRefinementStrategy [2018-04-12 10:23:24,793 INFO L119 rtionOrderModulation]: Craig nested/tree interpolation forces the following order [2018-04-12 10:23:24,793 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-04-12 10:23:24,793 INFO L119 rtionOrderModulation]: Craig nested/tree interpolation forces the following order [2018-04-12 10:23:24,801 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-04-12 10:23:24,802 WARN L250 erpolLogProxyWrapper]: Using partial proofs (cut at CNF-level). Set option :produce-proofs to true to get complete proofs. [2018-04-12 10:23:24,843 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 10:23:24,843 INFO L320 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2018-04-12 10:23:24,843 INFO L335 seRefinementStrategy]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2018-04-12 10:23:24,844 INFO L442 AbstractCegarLoop]: Interpolant automaton has 7 states [2018-04-12 10:23:24,844 INFO L132 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2018-04-12 10:23:24,844 INFO L133 InterpolantAutomaton]: CoverageRelationStatistics Valid=11, Invalid=31, Unknown=0, NotChecked=0, Total=42 [2018-04-12 10:23:24,844 INFO L87 Difference]: Start difference. First operand 40 states and 43 transitions. Second operand 7 states. [2018-04-12 10:23:24,904 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-04-12 10:23:24,904 INFO L93 Difference]: Finished difference Result 40 states and 43 transitions. [2018-04-12 10:23:24,904 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2018-04-12 10:23:24,904 INFO L78 Accepts]: Start accepts. Automaton has 7 states. Word has length 22 [2018-04-12 10:23:24,904 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-04-12 10:23:24,905 INFO L225 Difference]: With dead ends: 40 [2018-04-12 10:23:24,905 INFO L226 Difference]: Without dead ends: 40 [2018-04-12 10:23:24,905 INFO L567 BasicCegarLoop]: 0 DeclaredPredicates, 9 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 8 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=29, Invalid=61, Unknown=0, NotChecked=0, Total=90 [2018-04-12 10:23:24,905 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 40 states. [2018-04-12 10:23:24,907 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 40 to 39. [2018-04-12 10:23:24,907 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 39 states. [2018-04-12 10:23:24,907 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 39 states to 39 states and 42 transitions. [2018-04-12 10:23:24,907 INFO L78 Accepts]: Start accepts. Automaton has 39 states and 42 transitions. Word has length 22 [2018-04-12 10:23:24,908 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-04-12 10:23:24,908 INFO L459 AbstractCegarLoop]: Abstraction has 39 states and 42 transitions. [2018-04-12 10:23:24,908 INFO L460 AbstractCegarLoop]: Interpolant automaton has 7 states. [2018-04-12 10:23:24,908 INFO L276 IsEmpty]: Start isEmpty. Operand 39 states and 42 transitions. [2018-04-12 10:23:24,908 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 23 [2018-04-12 10:23:24,908 INFO L347 BasicCegarLoop]: Found error trace [2018-04-12 10:23:24,908 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] [2018-04-12 10:23:24,908 INFO L408 AbstractCegarLoop]: === Iteration 8 === [mainErr3RequiresViolation, mainErr1RequiresViolation, mainErr2RequiresViolation, mainErr4EnsuresViolationMEMORY_LEAK, mainErr0RequiresViolation, __U_MULTI_fopenbsd_cstrcspn_alloca_true_valid_memsafety_true_termination_i__cstrcspnErr2RequiresViolation, __U_MULTI_fopenbsd_cstrcspn_alloca_true_valid_memsafety_true_termination_i__cstrcspnErr0RequiresViolation, __U_MULTI_fopenbsd_cstrcspn_alloca_true_valid_memsafety_true_termination_i__cstrcspnErr1RequiresViolation, __U_MULTI_fopenbsd_cstrcspn_alloca_true_valid_memsafety_true_termination_i__cstrcspnErr3RequiresViolation]=== [2018-04-12 10:23:24,908 INFO L82 PathProgramCache]: Analyzing trace with hash -93842082, now seen corresponding path program 1 times [2018-04-12 10:23:24,908 INFO L213 ckRefinementStrategy]: Switched to mode SMTINTERPOL_TREE_INTERPOLANTS [2018-04-12 10:23:24,908 INFO L68 tionRefinementEngine]: Using refinement strategy CamelRefinementStrategy [2018-04-12 10:23:24,909 INFO L119 rtionOrderModulation]: Craig nested/tree interpolation forces the following order [2018-04-12 10:23:24,909 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-04-12 10:23:24,909 INFO L119 rtionOrderModulation]: Craig nested/tree interpolation forces the following order [2018-04-12 10:23:24,918 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-04-12 10:23:24,919 WARN L250 erpolLogProxyWrapper]: Using partial proofs (cut at CNF-level). Set option :produce-proofs to true to get complete proofs. [2018-04-12 10:23:25,005 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 10:23:25,005 INFO L320 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2018-04-12 10:23:25,005 INFO L335 seRefinementStrategy]: Number of different interpolants: perfect sequences [9] imperfect sequences [] total 9 [2018-04-12 10:23:25,006 INFO L442 AbstractCegarLoop]: Interpolant automaton has 10 states [2018-04-12 10:23:25,006 INFO L132 InterpolantAutomaton]: Constructing interpolant automaton starting with 10 interpolants. [2018-04-12 10:23:25,006 INFO L133 InterpolantAutomaton]: CoverageRelationStatistics Valid=20, Invalid=70, Unknown=0, NotChecked=0, Total=90 [2018-04-12 10:23:25,006 INFO L87 Difference]: Start difference. First operand 39 states and 42 transitions. Second operand 10 states. [2018-04-12 10:23:25,095 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-04-12 10:23:25,095 INFO L93 Difference]: Finished difference Result 43 states and 47 transitions. [2018-04-12 10:23:25,095 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 10 states. [2018-04-12 10:23:25,095 INFO L78 Accepts]: Start accepts. Automaton has 10 states. Word has length 22 [2018-04-12 10:23:25,095 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-04-12 10:23:25,095 INFO L225 Difference]: With dead ends: 43 [2018-04-12 10:23:25,096 INFO L226 Difference]: Without dead ends: 43 [2018-04-12 10:23:25,096 INFO L567 BasicCegarLoop]: 0 DeclaredPredicates, 13 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 12 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 24 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=42, Invalid=140, Unknown=0, NotChecked=0, Total=182 [2018-04-12 10:23:25,096 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 43 states. [2018-04-12 10:23:25,097 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 43 to 41. [2018-04-12 10:23:25,097 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 41 states. [2018-04-12 10:23:25,098 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 41 states to 41 states and 44 transitions. [2018-04-12 10:23:25,098 INFO L78 Accepts]: Start accepts. Automaton has 41 states and 44 transitions. Word has length 22 [2018-04-12 10:23:25,098 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-04-12 10:23:25,098 INFO L459 AbstractCegarLoop]: Abstraction has 41 states and 44 transitions. [2018-04-12 10:23:25,098 INFO L460 AbstractCegarLoop]: Interpolant automaton has 10 states. [2018-04-12 10:23:25,098 INFO L276 IsEmpty]: Start isEmpty. Operand 41 states and 44 transitions. [2018-04-12 10:23:25,099 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 28 [2018-04-12 10:23:25,099 INFO L347 BasicCegarLoop]: Found error trace [2018-04-12 10:23:25,099 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] [2018-04-12 10:23:25,099 INFO L408 AbstractCegarLoop]: === Iteration 9 === [mainErr3RequiresViolation, mainErr1RequiresViolation, mainErr2RequiresViolation, mainErr4EnsuresViolationMEMORY_LEAK, mainErr0RequiresViolation, __U_MULTI_fopenbsd_cstrcspn_alloca_true_valid_memsafety_true_termination_i__cstrcspnErr2RequiresViolation, __U_MULTI_fopenbsd_cstrcspn_alloca_true_valid_memsafety_true_termination_i__cstrcspnErr0RequiresViolation, __U_MULTI_fopenbsd_cstrcspn_alloca_true_valid_memsafety_true_termination_i__cstrcspnErr1RequiresViolation, __U_MULTI_fopenbsd_cstrcspn_alloca_true_valid_memsafety_true_termination_i__cstrcspnErr3RequiresViolation]=== [2018-04-12 10:23:25,099 INFO L82 PathProgramCache]: Analyzing trace with hash -1165056638, now seen corresponding path program 1 times [2018-04-12 10:23:25,099 INFO L213 ckRefinementStrategy]: Switched to mode SMTINTERPOL_TREE_INTERPOLANTS [2018-04-12 10:23:25,099 INFO L68 tionRefinementEngine]: Using refinement strategy CamelRefinementStrategy [2018-04-12 10:23:25,100 INFO L119 rtionOrderModulation]: Craig nested/tree interpolation forces the following order [2018-04-12 10:23:25,100 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-04-12 10:23:25,100 INFO L119 rtionOrderModulation]: Craig nested/tree interpolation forces the following order [2018-04-12 10:23:25,111 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-04-12 10:23:25,111 WARN L250 erpolLogProxyWrapper]: Using partial proofs (cut at CNF-level). Set option :produce-proofs to true to get complete proofs. [2018-04-12 10:23:25,223 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 10:23:25,223 INFO L320 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2018-04-12 10:23:25,223 INFO L335 seRefinementStrategy]: Number of different interpolants: perfect sequences [12] imperfect sequences [] total 12 [2018-04-12 10:23:25,223 INFO L442 AbstractCegarLoop]: Interpolant automaton has 12 states [2018-04-12 10:23:25,223 INFO L132 InterpolantAutomaton]: Constructing interpolant automaton starting with 12 interpolants. [2018-04-12 10:23:25,224 INFO L133 InterpolantAutomaton]: CoverageRelationStatistics Valid=23, Invalid=109, Unknown=0, NotChecked=0, Total=132 [2018-04-12 10:23:25,224 INFO L87 Difference]: Start difference. First operand 41 states and 44 transitions. Second operand 12 states. [2018-04-12 10:23:25,415 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-04-12 10:23:25,416 INFO L93 Difference]: Finished difference Result 79 states and 82 transitions. [2018-04-12 10:23:25,416 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 17 states. [2018-04-12 10:23:25,416 INFO L78 Accepts]: Start accepts. Automaton has 12 states. Word has length 27 [2018-04-12 10:23:25,416 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-04-12 10:23:25,416 INFO L225 Difference]: With dead ends: 79 [2018-04-12 10:23:25,416 INFO L226 Difference]: Without dead ends: 79 [2018-04-12 10:23:25,417 INFO L567 BasicCegarLoop]: 0 DeclaredPredicates, 23 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 21 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 70 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=101, Invalid=405, Unknown=0, NotChecked=0, Total=506 [2018-04-12 10:23:25,417 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 79 states. [2018-04-12 10:23:25,419 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 79 to 63. [2018-04-12 10:23:25,419 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 63 states. [2018-04-12 10:23:25,419 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 63 states to 63 states and 68 transitions. [2018-04-12 10:23:25,419 INFO L78 Accepts]: Start accepts. Automaton has 63 states and 68 transitions. Word has length 27 [2018-04-12 10:23:25,419 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-04-12 10:23:25,420 INFO L459 AbstractCegarLoop]: Abstraction has 63 states and 68 transitions. [2018-04-12 10:23:25,420 INFO L460 AbstractCegarLoop]: Interpolant automaton has 12 states. [2018-04-12 10:23:25,420 INFO L276 IsEmpty]: Start isEmpty. Operand 63 states and 68 transitions. [2018-04-12 10:23:25,420 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 28 [2018-04-12 10:23:25,420 INFO L347 BasicCegarLoop]: Found error trace [2018-04-12 10:23:25,420 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] [2018-04-12 10:23:25,420 INFO L408 AbstractCegarLoop]: === Iteration 10 === [mainErr3RequiresViolation, mainErr1RequiresViolation, mainErr2RequiresViolation, mainErr4EnsuresViolationMEMORY_LEAK, mainErr0RequiresViolation, __U_MULTI_fopenbsd_cstrcspn_alloca_true_valid_memsafety_true_termination_i__cstrcspnErr2RequiresViolation, __U_MULTI_fopenbsd_cstrcspn_alloca_true_valid_memsafety_true_termination_i__cstrcspnErr0RequiresViolation, __U_MULTI_fopenbsd_cstrcspn_alloca_true_valid_memsafety_true_termination_i__cstrcspnErr1RequiresViolation, __U_MULTI_fopenbsd_cstrcspn_alloca_true_valid_memsafety_true_termination_i__cstrcspnErr3RequiresViolation]=== [2018-04-12 10:23:25,420 INFO L82 PathProgramCache]: Analyzing trace with hash -1982705088, now seen corresponding path program 1 times [2018-04-12 10:23:25,420 INFO L213 ckRefinementStrategy]: Switched to mode SMTINTERPOL_TREE_INTERPOLANTS [2018-04-12 10:23:25,420 INFO L68 tionRefinementEngine]: Using refinement strategy CamelRefinementStrategy [2018-04-12 10:23:25,421 INFO L119 rtionOrderModulation]: Craig nested/tree interpolation forces the following order [2018-04-12 10:23:25,421 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-04-12 10:23:25,421 INFO L119 rtionOrderModulation]: Craig nested/tree interpolation forces the following order [2018-04-12 10:23:25,432 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-04-12 10:23:25,433 WARN L250 erpolLogProxyWrapper]: Using partial proofs (cut at CNF-level). Set option :produce-proofs to true to get complete proofs. [2018-04-12 10:23:25,579 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 10:23:25,579 INFO L308 seRefinementStrategy]: The current sequences of interpolants are not accepted, trying to find more. [2018-04-12 10:23:25,579 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 10:23:25,586 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-04-12 10:23:25,610 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-04-12 10:23:25,616 INFO L270 TraceCheckSpWp]: Computing forward predicates... [2018-04-12 10:23:25,645 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 10:23:25,647 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 10:23:25,647 INFO L267 ElimStorePlain]: Start of recursive call 3: End of recursive call: and 1 xjuncts. [2018-04-12 10:23:25,648 INFO L267 ElimStorePlain]: Start of recursive call 2: 1 dim-1 vars, End of recursive call: and 1 xjuncts. [2018-04-12 10:23:25,652 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 10:23:25,652 INFO L202 ElimStorePlain]: Needed 3 recursive calls to eliminate 2 variables, input treesize:25, output treesize:21 [2018-04-12 10:23:25,788 INFO L477 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 0 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 20 treesize of output 16 [2018-04-12 10:23:25,794 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 10:23:25,794 INFO L267 ElimStorePlain]: Start of recursive call 3: End of recursive call: and 2 xjuncts. [2018-04-12 10:23:25,803 INFO L267 ElimStorePlain]: Start of recursive call 2: 1 dim-1 vars, End of recursive call: and 2 xjuncts. [2018-04-12 10:23:25,811 INFO L267 ElimStorePlain]: Start of recursive call 1: 2 dim-0 vars, 1 dim-2 vars, End of recursive call: and 2 xjuncts. [2018-04-12 10:23:25,812 INFO L202 ElimStorePlain]: Needed 3 recursive calls to eliminate 3 variables, input treesize:38, output treesize:29 [2018-04-12 10:23:25,879 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 10:23:25,898 INFO L320 seRefinementStrategy]: Constructing automaton from 0 perfect and 2 imperfect interpolant sequences. [2018-04-12 10:23:25,898 INFO L335 seRefinementStrategy]: Number of different interpolants: perfect sequences [] imperfect sequences [13, 11] total 20 [2018-04-12 10:23:25,898 INFO L442 AbstractCegarLoop]: Interpolant automaton has 21 states [2018-04-12 10:23:25,899 INFO L132 InterpolantAutomaton]: Constructing interpolant automaton starting with 21 interpolants. [2018-04-12 10:23:25,899 INFO L133 InterpolantAutomaton]: CoverageRelationStatistics Valid=47, Invalid=373, Unknown=0, NotChecked=0, Total=420 [2018-04-12 10:23:25,899 INFO L87 Difference]: Start difference. First operand 63 states and 68 transitions. Second operand 21 states. [2018-04-12 10:23:26,915 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-04-12 10:23:26,915 INFO L93 Difference]: Finished difference Result 79 states and 87 transitions. [2018-04-12 10:23:26,916 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 17 states. [2018-04-12 10:23:26,916 INFO L78 Accepts]: Start accepts. Automaton has 21 states. Word has length 27 [2018-04-12 10:23:26,916 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-04-12 10:23:26,918 INFO L225 Difference]: With dead ends: 79 [2018-04-12 10:23:26,918 INFO L226 Difference]: Without dead ends: 79 [2018-04-12 10:23:26,918 INFO L567 BasicCegarLoop]: 0 DeclaredPredicates, 52 GetRequests, 20 SyntacticMatches, 0 SemanticMatches, 32 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 148 ImplicationChecksByTransitivity, 1.0s TimeCoverageRelationStatistics Valid=173, Invalid=949, Unknown=0, NotChecked=0, Total=1122 [2018-04-12 10:23:26,918 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 79 states. [2018-04-12 10:23:26,920 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 79 to 68. [2018-04-12 10:23:26,921 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 68 states. [2018-04-12 10:23:26,921 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 68 states to 68 states and 75 transitions. [2018-04-12 10:23:26,921 INFO L78 Accepts]: Start accepts. Automaton has 68 states and 75 transitions. Word has length 27 [2018-04-12 10:23:26,921 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-04-12 10:23:26,921 INFO L459 AbstractCegarLoop]: Abstraction has 68 states and 75 transitions. [2018-04-12 10:23:26,921 INFO L460 AbstractCegarLoop]: Interpolant automaton has 21 states. [2018-04-12 10:23:26,921 INFO L276 IsEmpty]: Start isEmpty. Operand 68 states and 75 transitions. [2018-04-12 10:23:26,922 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 29 [2018-04-12 10:23:26,922 INFO L347 BasicCegarLoop]: Found error trace [2018-04-12 10:23:26,922 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] [2018-04-12 10:23:26,922 INFO L408 AbstractCegarLoop]: === Iteration 11 === [mainErr3RequiresViolation, mainErr1RequiresViolation, mainErr2RequiresViolation, mainErr4EnsuresViolationMEMORY_LEAK, mainErr0RequiresViolation, __U_MULTI_fopenbsd_cstrcspn_alloca_true_valid_memsafety_true_termination_i__cstrcspnErr2RequiresViolation, __U_MULTI_fopenbsd_cstrcspn_alloca_true_valid_memsafety_true_termination_i__cstrcspnErr0RequiresViolation, __U_MULTI_fopenbsd_cstrcspn_alloca_true_valid_memsafety_true_termination_i__cstrcspnErr1RequiresViolation, __U_MULTI_fopenbsd_cstrcspn_alloca_true_valid_memsafety_true_termination_i__cstrcspnErr3RequiresViolation]=== [2018-04-12 10:23:26,922 INFO L82 PathProgramCache]: Analyzing trace with hash -1757089814, now seen corresponding path program 1 times [2018-04-12 10:23:26,922 INFO L213 ckRefinementStrategy]: Switched to mode SMTINTERPOL_TREE_INTERPOLANTS [2018-04-12 10:23:26,922 INFO L68 tionRefinementEngine]: Using refinement strategy CamelRefinementStrategy [2018-04-12 10:23:26,923 INFO L119 rtionOrderModulation]: Craig nested/tree interpolation forces the following order [2018-04-12 10:23:26,923 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-04-12 10:23:26,923 INFO L119 rtionOrderModulation]: Craig nested/tree interpolation forces the following order [2018-04-12 10:23:26,933 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-04-12 10:23:26,934 WARN L250 erpolLogProxyWrapper]: Using partial proofs (cut at CNF-level). Set option :produce-proofs to true to get complete proofs. [2018-04-12 10:23:27,135 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 10:23:27,136 INFO L308 seRefinementStrategy]: The current sequences of interpolants are not accepted, trying to find more. [2018-04-12 10:23:27,136 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 10:23:27,142 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-04-12 10:23:27,159 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-04-12 10:23:27,162 INFO L270 TraceCheckSpWp]: Computing forward predicates... [2018-04-12 10:23:27,170 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 10:23:27,170 INFO L267 ElimStorePlain]: Start of recursive call 2: End of recursive call: and 1 xjuncts. [2018-04-12 10:23:27,172 INFO L267 ElimStorePlain]: Start of recursive call 1: 1 dim-1 vars, End of recursive call: and 1 xjuncts. [2018-04-12 10:23:27,172 INFO L202 ElimStorePlain]: Needed 2 recursive calls to eliminate 1 variables, input treesize:10, output treesize:9 [2018-04-12 10:23:27,202 INFO L700 Elim1Store]: detected not equals via solver [2018-04-12 10:23:27,202 INFO L700 Elim1Store]: detected not equals via solver [2018-04-12 10:23:27,203 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 10:23:27,203 INFO L267 ElimStorePlain]: Start of recursive call 2: End of recursive call: and 1 xjuncts. [2018-04-12 10:23:27,205 INFO L267 ElimStorePlain]: Start of recursive call 1: 1 dim-1 vars, End of recursive call: and 1 xjuncts. [2018-04-12 10:23:27,205 INFO L202 ElimStorePlain]: Needed 2 recursive calls to eliminate 1 variables, input treesize:14, output treesize:8 [2018-04-12 10:23:27,232 INFO L477 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 14 treesize of output 11 [2018-04-12 10:23:27,233 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 10:23:27,233 INFO L267 ElimStorePlain]: Start of recursive call 3: End of recursive call: and 1 xjuncts. [2018-04-12 10:23:27,234 INFO L267 ElimStorePlain]: Start of recursive call 2: 1 dim-1 vars, End of recursive call: and 1 xjuncts. [2018-04-12 10:23:27,238 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 10:23:27,239 INFO L202 ElimStorePlain]: Needed 3 recursive calls to eliminate 2 variables, input treesize:29, output treesize:25 [2018-04-12 10:23:27,260 INFO L477 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 2 select indices, 2 select index equivalence classes, 1 disjoint index pairs (out of 1 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 25 treesize of output 26 [2018-04-12 10:23:27,261 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 10:23:27,262 INFO L267 ElimStorePlain]: Start of recursive call 3: End of recursive call: and 1 xjuncts. [2018-04-12 10:23:27,265 INFO L267 ElimStorePlain]: Start of recursive call 2: 1 dim-1 vars, End of recursive call: and 1 xjuncts. [2018-04-12 10:23:27,270 INFO L267 ElimStorePlain]: Start of recursive call 1: 4 dim-0 vars, 1 dim-2 vars, End of recursive call: 4 dim-0 vars, and 1 xjuncts. [2018-04-12 10:23:27,271 INFO L202 ElimStorePlain]: Needed 3 recursive calls to eliminate 5 variables, input treesize:39, output treesize:35 [2018-04-12 10:23:27,400 INFO L477 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 0 stores, 2 select indices, 2 select index equivalence classes, 1 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 0 case distinctions, treesize of input 30 treesize of output 28 [2018-04-12 10:23:27,402 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 8 treesize of output 1 [2018-04-12 10:23:27,402 INFO L267 ElimStorePlain]: Start of recursive call 3: End of recursive call: and 1 xjuncts. [2018-04-12 10:23:27,411 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 10:23:27,412 INFO L267 ElimStorePlain]: Start of recursive call 4: End of recursive call: and 2 xjuncts. [2018-04-12 10:23:27,415 INFO L267 ElimStorePlain]: Start of recursive call 2: 2 dim-1 vars, End of recursive call: and 2 xjuncts. [2018-04-12 10:23:27,424 INFO L267 ElimStorePlain]: Start of recursive call 1: 5 dim-0 vars, 1 dim-2 vars, End of recursive call: and 2 xjuncts. [2018-04-12 10:23:27,424 INFO L202 ElimStorePlain]: Needed 4 recursive calls to eliminate 6 variables, input treesize:52, output treesize:29 [2018-04-12 10:23:27,509 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 10:23:27,527 INFO L320 seRefinementStrategy]: Constructing automaton from 0 perfect and 2 imperfect interpolant sequences. [2018-04-12 10:23:27,528 INFO L335 seRefinementStrategy]: Number of different interpolants: perfect sequences [] imperfect sequences [15, 16] total 27 [2018-04-12 10:23:27,528 INFO L442 AbstractCegarLoop]: Interpolant automaton has 28 states [2018-04-12 10:23:27,528 INFO L132 InterpolantAutomaton]: Constructing interpolant automaton starting with 28 interpolants. [2018-04-12 10:23:27,528 INFO L133 InterpolantAutomaton]: CoverageRelationStatistics Valid=74, Invalid=682, Unknown=0, NotChecked=0, Total=756 [2018-04-12 10:23:27,528 INFO L87 Difference]: Start difference. First operand 68 states and 75 transitions. Second operand 28 states. [2018-04-12 10:23:28,689 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-04-12 10:23:28,689 INFO L93 Difference]: Finished difference Result 100 states and 112 transitions. [2018-04-12 10:23:28,689 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 20 states. [2018-04-12 10:23:28,689 INFO L78 Accepts]: Start accepts. Automaton has 28 states. Word has length 28 [2018-04-12 10:23:28,689 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-04-12 10:23:28,690 INFO L225 Difference]: With dead ends: 100 [2018-04-12 10:23:28,690 INFO L226 Difference]: Without dead ends: 100 [2018-04-12 10:23:28,690 INFO L567 BasicCegarLoop]: 0 DeclaredPredicates, 59 GetRequests, 17 SyntacticMatches, 0 SemanticMatches, 42 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 380 ImplicationChecksByTransitivity, 1.3s TimeCoverageRelationStatistics Valid=232, Invalid=1660, Unknown=0, NotChecked=0, Total=1892 [2018-04-12 10:23:28,691 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 100 states. [2018-04-12 10:23:28,695 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 100 to 93. [2018-04-12 10:23:28,695 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 93 states. [2018-04-12 10:23:28,696 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 93 states to 93 states and 106 transitions. [2018-04-12 10:23:28,696 INFO L78 Accepts]: Start accepts. Automaton has 93 states and 106 transitions. Word has length 28 [2018-04-12 10:23:28,696 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-04-12 10:23:28,696 INFO L459 AbstractCegarLoop]: Abstraction has 93 states and 106 transitions. [2018-04-12 10:23:28,696 INFO L460 AbstractCegarLoop]: Interpolant automaton has 28 states. [2018-04-12 10:23:28,697 INFO L276 IsEmpty]: Start isEmpty. Operand 93 states and 106 transitions. [2018-04-12 10:23:28,697 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 33 [2018-04-12 10:23:28,697 INFO L347 BasicCegarLoop]: Found error trace [2018-04-12 10:23:28,697 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 10:23:28,698 INFO L408 AbstractCegarLoop]: === Iteration 12 === [mainErr3RequiresViolation, mainErr1RequiresViolation, mainErr2RequiresViolation, mainErr4EnsuresViolationMEMORY_LEAK, mainErr0RequiresViolation, __U_MULTI_fopenbsd_cstrcspn_alloca_true_valid_memsafety_true_termination_i__cstrcspnErr2RequiresViolation, __U_MULTI_fopenbsd_cstrcspn_alloca_true_valid_memsafety_true_termination_i__cstrcspnErr0RequiresViolation, __U_MULTI_fopenbsd_cstrcspn_alloca_true_valid_memsafety_true_termination_i__cstrcspnErr1RequiresViolation, __U_MULTI_fopenbsd_cstrcspn_alloca_true_valid_memsafety_true_termination_i__cstrcspnErr3RequiresViolation]=== [2018-04-12 10:23:28,698 INFO L82 PathProgramCache]: Analyzing trace with hash -1220195187, now seen corresponding path program 1 times [2018-04-12 10:23:28,698 INFO L213 ckRefinementStrategy]: Switched to mode SMTINTERPOL_TREE_INTERPOLANTS [2018-04-12 10:23:28,698 INFO L68 tionRefinementEngine]: Using refinement strategy CamelRefinementStrategy [2018-04-12 10:23:28,699 INFO L119 rtionOrderModulation]: Craig nested/tree interpolation forces the following order [2018-04-12 10:23:28,699 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-04-12 10:23:28,699 INFO L119 rtionOrderModulation]: Craig nested/tree interpolation forces the following order [2018-04-12 10:23:28,713 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-04-12 10:23:28,714 WARN L250 erpolLogProxyWrapper]: Using partial proofs (cut at CNF-level). Set option :produce-proofs to true to get complete proofs. [2018-04-12 10:23:28,762 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 10:23:28,762 INFO L320 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2018-04-12 10:23:28,762 INFO L335 seRefinementStrategy]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2018-04-12 10:23:28,763 INFO L442 AbstractCegarLoop]: Interpolant automaton has 6 states [2018-04-12 10:23:28,763 INFO L132 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2018-04-12 10:23:28,763 INFO L133 InterpolantAutomaton]: CoverageRelationStatistics Valid=9, Invalid=21, Unknown=0, NotChecked=0, Total=30 [2018-04-12 10:23:28,763 INFO L87 Difference]: Start difference. First operand 93 states and 106 transitions. Second operand 6 states. [2018-04-12 10:23:28,823 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-04-12 10:23:28,823 INFO L93 Difference]: Finished difference Result 92 states and 105 transitions. [2018-04-12 10:23:28,823 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2018-04-12 10:23:28,823 INFO L78 Accepts]: Start accepts. Automaton has 6 states. Word has length 32 [2018-04-12 10:23:28,823 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-04-12 10:23:28,823 INFO L225 Difference]: With dead ends: 92 [2018-04-12 10:23:28,823 INFO L226 Difference]: Without dead ends: 82 [2018-04-12 10:23:28,824 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 10:23:28,824 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 82 states. [2018-04-12 10:23:28,825 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 82 to 82. [2018-04-12 10:23:28,826 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 82 states. [2018-04-12 10:23:28,826 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 82 states to 82 states and 90 transitions. [2018-04-12 10:23:28,826 INFO L78 Accepts]: Start accepts. Automaton has 82 states and 90 transitions. Word has length 32 [2018-04-12 10:23:28,827 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-04-12 10:23:28,827 INFO L459 AbstractCegarLoop]: Abstraction has 82 states and 90 transitions. [2018-04-12 10:23:28,827 INFO L460 AbstractCegarLoop]: Interpolant automaton has 6 states. [2018-04-12 10:23:28,827 INFO L276 IsEmpty]: Start isEmpty. Operand 82 states and 90 transitions. [2018-04-12 10:23:28,827 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 33 [2018-04-12 10:23:28,827 INFO L347 BasicCegarLoop]: Found error trace [2018-04-12 10:23:28,827 INFO L355 BasicCegarLoop]: trace histogram [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] [2018-04-12 10:23:28,827 INFO L408 AbstractCegarLoop]: === Iteration 13 === [mainErr3RequiresViolation, mainErr1RequiresViolation, mainErr2RequiresViolation, mainErr4EnsuresViolationMEMORY_LEAK, mainErr0RequiresViolation, __U_MULTI_fopenbsd_cstrcspn_alloca_true_valid_memsafety_true_termination_i__cstrcspnErr2RequiresViolation, __U_MULTI_fopenbsd_cstrcspn_alloca_true_valid_memsafety_true_termination_i__cstrcspnErr0RequiresViolation, __U_MULTI_fopenbsd_cstrcspn_alloca_true_valid_memsafety_true_termination_i__cstrcspnErr1RequiresViolation, __U_MULTI_fopenbsd_cstrcspn_alloca_true_valid_memsafety_true_termination_i__cstrcspnErr3RequiresViolation]=== [2018-04-12 10:23:28,827 INFO L82 PathProgramCache]: Analyzing trace with hash 567354848, now seen corresponding path program 2 times [2018-04-12 10:23:28,827 INFO L213 ckRefinementStrategy]: Switched to mode SMTINTERPOL_TREE_INTERPOLANTS [2018-04-12 10:23:28,827 INFO L68 tionRefinementEngine]: Using refinement strategy CamelRefinementStrategy [2018-04-12 10:23:28,828 INFO L119 rtionOrderModulation]: Craig nested/tree interpolation forces the following order [2018-04-12 10:23:28,828 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-04-12 10:23:28,828 INFO L119 rtionOrderModulation]: Craig nested/tree interpolation forces the following order [2018-04-12 10:23:28,836 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-04-12 10:23:28,836 WARN L250 erpolLogProxyWrapper]: Using partial proofs (cut at CNF-level). Set option :produce-proofs to true to get complete proofs. [2018-04-12 10:23:29,097 INFO L134 CoverageAnalysis]: Checked inductivity of 9 backedges. 0 proven. 9 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-04-12 10:23:29,098 INFO L308 seRefinementStrategy]: The current sequences of interpolants are not accepted, trying to find more. [2018-04-12 10:23:29,098 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 10:23:29,107 INFO L103 rtionOrderModulation]: Keeping assertion order OUTSIDE_LOOP_FIRST1 [2018-04-12 10:23:29,127 INFO L242 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST1 issued 2 check-sat command(s) [2018-04-12 10:23:29,127 INFO L243 tOrderPrioritization]: Conjunction of SSA is unsat [2018-04-12 10:23:29,129 INFO L270 TraceCheckSpWp]: Computing forward predicates... [2018-04-12 10:23:29,132 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 10:23:29,132 INFO L267 ElimStorePlain]: Start of recursive call 2: End of recursive call: and 1 xjuncts. [2018-04-12 10:23:29,134 INFO L267 ElimStorePlain]: Start of recursive call 1: 1 dim-1 vars, End of recursive call: and 1 xjuncts. [2018-04-12 10:23:29,134 INFO L202 ElimStorePlain]: Needed 2 recursive calls to eliminate 1 variables, input treesize:10, output treesize:9 [2018-04-12 10:23:29,168 INFO L477 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 16 treesize of output 13 [2018-04-12 10:23:29,169 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 10:23:29,169 INFO L267 ElimStorePlain]: Start of recursive call 3: End of recursive call: and 1 xjuncts. [2018-04-12 10:23:29,170 INFO L267 ElimStorePlain]: Start of recursive call 2: 1 dim-1 vars, End of recursive call: and 1 xjuncts. [2018-04-12 10:23:29,174 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 10:23:29,174 INFO L202 ElimStorePlain]: Needed 3 recursive calls to eliminate 2 variables, input treesize:23, output treesize:19 [2018-04-12 10:23:29,345 INFO L477 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 0 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 22 treesize of output 18 [2018-04-12 10:23:29,351 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 10:23:29,351 INFO L267 ElimStorePlain]: Start of recursive call 3: End of recursive call: and 2 xjuncts. [2018-04-12 10:23:29,363 INFO L267 ElimStorePlain]: Start of recursive call 2: 1 dim-1 vars, End of recursive call: and 2 xjuncts. [2018-04-12 10:23:29,371 INFO L267 ElimStorePlain]: Start of recursive call 1: 1 dim-0 vars, 1 dim-2 vars, End of recursive call: and 2 xjuncts. [2018-04-12 10:23:29,371 INFO L202 ElimStorePlain]: Needed 3 recursive calls to eliminate 2 variables, input treesize:36, output treesize:37 [2018-04-12 10:23:29,425 INFO L134 CoverageAnalysis]: Checked inductivity of 9 backedges. 2 proven. 7 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-04-12 10:23:29,443 INFO L320 seRefinementStrategy]: Constructing automaton from 0 perfect and 2 imperfect interpolant sequences. [2018-04-12 10:23:29,443 INFO L335 seRefinementStrategy]: Number of different interpolants: perfect sequences [] imperfect sequences [14, 14] total 25 [2018-04-12 10:23:29,443 INFO L442 AbstractCegarLoop]: Interpolant automaton has 26 states [2018-04-12 10:23:29,443 INFO L132 InterpolantAutomaton]: Constructing interpolant automaton starting with 26 interpolants. [2018-04-12 10:23:29,444 INFO L133 InterpolantAutomaton]: CoverageRelationStatistics Valid=64, Invalid=586, Unknown=0, NotChecked=0, Total=650 [2018-04-12 10:23:29,444 INFO L87 Difference]: Start difference. First operand 82 states and 90 transitions. Second operand 26 states. [2018-04-12 10:23:30,516 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-04-12 10:23:30,516 INFO L93 Difference]: Finished difference Result 93 states and 100 transitions. [2018-04-12 10:23:30,516 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 19 states. [2018-04-12 10:23:30,516 INFO L78 Accepts]: Start accepts. Automaton has 26 states. Word has length 32 [2018-04-12 10:23:30,516 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-04-12 10:23:30,517 INFO L225 Difference]: With dead ends: 93 [2018-04-12 10:23:30,517 INFO L226 Difference]: Without dead ends: 93 [2018-04-12 10:23:30,517 INFO L567 BasicCegarLoop]: 0 DeclaredPredicates, 61 GetRequests, 21 SyntacticMatches, 0 SemanticMatches, 40 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 192 ImplicationChecksByTransitivity, 1.2s TimeCoverageRelationStatistics Valid=265, Invalid=1457, Unknown=0, NotChecked=0, Total=1722 [2018-04-12 10:23:30,517 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 93 states. [2018-04-12 10:23:30,519 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 93 to 67. [2018-04-12 10:23:30,519 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 67 states. [2018-04-12 10:23:30,519 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 67 states to 67 states and 72 transitions. [2018-04-12 10:23:30,519 INFO L78 Accepts]: Start accepts. Automaton has 67 states and 72 transitions. Word has length 32 [2018-04-12 10:23:30,519 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-04-12 10:23:30,519 INFO L459 AbstractCegarLoop]: Abstraction has 67 states and 72 transitions. [2018-04-12 10:23:30,519 INFO L460 AbstractCegarLoop]: Interpolant automaton has 26 states. [2018-04-12 10:23:30,519 INFO L276 IsEmpty]: Start isEmpty. Operand 67 states and 72 transitions. [2018-04-12 10:23:30,520 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 38 [2018-04-12 10:23:30,520 INFO L347 BasicCegarLoop]: Found error trace [2018-04-12 10:23:30,520 INFO L355 BasicCegarLoop]: trace histogram [3, 3, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2018-04-12 10:23:30,520 INFO L408 AbstractCegarLoop]: === Iteration 14 === [mainErr3RequiresViolation, mainErr1RequiresViolation, mainErr2RequiresViolation, mainErr4EnsuresViolationMEMORY_LEAK, mainErr0RequiresViolation, __U_MULTI_fopenbsd_cstrcspn_alloca_true_valid_memsafety_true_termination_i__cstrcspnErr2RequiresViolation, __U_MULTI_fopenbsd_cstrcspn_alloca_true_valid_memsafety_true_termination_i__cstrcspnErr0RequiresViolation, __U_MULTI_fopenbsd_cstrcspn_alloca_true_valid_memsafety_true_termination_i__cstrcspnErr1RequiresViolation, __U_MULTI_fopenbsd_cstrcspn_alloca_true_valid_memsafety_true_termination_i__cstrcspnErr3RequiresViolation]=== [2018-04-12 10:23:30,520 INFO L82 PathProgramCache]: Analyzing trace with hash -1824027372, now seen corresponding path program 2 times [2018-04-12 10:23:30,520 INFO L213 ckRefinementStrategy]: Switched to mode SMTINTERPOL_TREE_INTERPOLANTS [2018-04-12 10:23:30,520 INFO L68 tionRefinementEngine]: Using refinement strategy CamelRefinementStrategy [2018-04-12 10:23:30,521 INFO L119 rtionOrderModulation]: Craig nested/tree interpolation forces the following order [2018-04-12 10:23:30,521 INFO L101 rtionOrderModulation]: Changing assertion order to NOT_INCREMENTALLY [2018-04-12 10:23:30,521 INFO L119 rtionOrderModulation]: Craig nested/tree interpolation forces the following order [2018-04-12 10:23:30,530 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-04-12 10:23:30,531 WARN L250 erpolLogProxyWrapper]: Using partial proofs (cut at CNF-level). Set option :produce-proofs to true to get complete proofs. [2018-04-12 10:23:30,789 INFO L134 CoverageAnalysis]: Checked inductivity of 15 backedges. 0 proven. 15 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-04-12 10:23:30,789 INFO L308 seRefinementStrategy]: The current sequences of interpolants are not accepted, trying to find more. [2018-04-12 10:23:30,789 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 10:23:30,794 INFO L103 rtionOrderModulation]: Keeping assertion order OUTSIDE_LOOP_FIRST1 [2018-04-12 10:23:30,809 INFO L242 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST1 issued 2 check-sat command(s) [2018-04-12 10:23:30,809 INFO L243 tOrderPrioritization]: Conjunction of SSA is unsat [2018-04-12 10:23:30,811 INFO L270 TraceCheckSpWp]: Computing forward predicates... [2018-04-12 10:23:30,814 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 10:23:30,814 INFO L267 ElimStorePlain]: Start of recursive call 2: End of recursive call: and 1 xjuncts. [2018-04-12 10:23:30,818 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 10:23:30,819 INFO L267 ElimStorePlain]: Start of recursive call 3: End of recursive call: and 1 xjuncts. [2018-04-12 10:23:30,823 INFO L267 ElimStorePlain]: Start of recursive call 1: 2 dim-1 vars, End of recursive call: and 1 xjuncts. [2018-04-12 10:23:30,824 INFO L202 ElimStorePlain]: Needed 3 recursive calls to eliminate 2 variables, input treesize:16, output treesize:14 [2018-04-12 10:23:30,873 INFO L700 Elim1Store]: detected not equals via solver [2018-04-12 10:23:30,873 INFO L700 Elim1Store]: detected not equals via solver [2018-04-12 10:23:30,874 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 10:23:30,874 INFO L267 ElimStorePlain]: Start of recursive call 2: End of recursive call: and 1 xjuncts. [2018-04-12 10:23:30,882 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 10:23:30,882 INFO L267 ElimStorePlain]: Start of recursive call 3: End of recursive call: and 1 xjuncts. [2018-04-12 10:23:30,885 INFO L267 ElimStorePlain]: Start of recursive call 1: 2 dim-1 vars, End of recursive call: and 1 xjuncts. [2018-04-12 10:23:30,885 INFO L202 ElimStorePlain]: Needed 3 recursive calls to eliminate 2 variables, input treesize:25, output treesize:18 [2018-04-12 10:23:30,925 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 10:23:30,926 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 10:23:30,927 INFO L267 ElimStorePlain]: Start of recursive call 3: End of recursive call: and 1 xjuncts. [2018-04-12 10:23:30,928 INFO L267 ElimStorePlain]: Start of recursive call 2: 1 dim-1 vars, End of recursive call: and 1 xjuncts. [2018-04-12 10:23:30,932 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 10:23:30,932 INFO L202 ElimStorePlain]: Needed 3 recursive calls to eliminate 2 variables, input treesize:32, output treesize:28 [2018-04-12 10:23:30,955 INFO L477 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 2 select indices, 2 select index equivalence classes, 1 disjoint index pairs (out of 1 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 29 treesize of output 30 [2018-04-12 10:23:30,957 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 10:23:30,957 INFO L267 ElimStorePlain]: Start of recursive call 3: End of recursive call: and 1 xjuncts. [2018-04-12 10:23:30,960 INFO L267 ElimStorePlain]: Start of recursive call 2: 1 dim-1 vars, End of recursive call: and 1 xjuncts. [2018-04-12 10:23:30,964 INFO L267 ElimStorePlain]: Start of recursive call 1: 3 dim-0 vars, 1 dim-2 vars, End of recursive call: 3 dim-0 vars, and 1 xjuncts. [2018-04-12 10:23:30,964 INFO L202 ElimStorePlain]: Needed 3 recursive calls to eliminate 4 variables, input treesize:39, output treesize:35 [2018-04-12 10:23:31,269 INFO L477 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 0 stores, 2 select indices, 2 select index equivalence classes, 1 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 0 case distinctions, treesize of input 34 treesize of output 32 [2018-04-12 10:23:31,273 INFO L477 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 10 treesize of output 1 [2018-04-12 10:23:31,273 INFO L267 ElimStorePlain]: Start of recursive call 3: End of recursive call: and 1 xjuncts. [2018-04-12 10:23:31,282 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 10:23:31,282 INFO L267 ElimStorePlain]: Start of recursive call 4: End of recursive call: and 2 xjuncts. [2018-04-12 10:23:31,284 INFO L267 ElimStorePlain]: Start of recursive call 2: 2 dim-1 vars, End of recursive call: and 2 xjuncts. [2018-04-12 10:23:31,291 INFO L267 ElimStorePlain]: Start of recursive call 1: 3 dim-0 vars, 1 dim-2 vars, End of recursive call: and 2 xjuncts. [2018-04-12 10:23:31,292 INFO L202 ElimStorePlain]: Needed 4 recursive calls to eliminate 4 variables, input treesize:52, output treesize:37 [2018-04-12 10:23:31,395 INFO L134 CoverageAnalysis]: Checked inductivity of 15 backedges. 3 proven. 12 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-04-12 10:23:31,413 INFO L320 seRefinementStrategy]: Constructing automaton from 0 perfect and 2 imperfect interpolant sequences. [2018-04-12 10:23:31,413 INFO L335 seRefinementStrategy]: Number of different interpolants: perfect sequences [] imperfect sequences [16, 17] total 30 [2018-04-12 10:23:31,413 INFO L442 AbstractCegarLoop]: Interpolant automaton has 31 states [2018-04-12 10:23:31,413 INFO L132 InterpolantAutomaton]: Constructing interpolant automaton starting with 31 interpolants. [2018-04-12 10:23:31,413 INFO L133 InterpolantAutomaton]: CoverageRelationStatistics Valid=76, Invalid=854, Unknown=0, NotChecked=0, Total=930 [2018-04-12 10:23:31,413 INFO L87 Difference]: Start difference. First operand 67 states and 72 transitions. Second operand 31 states. [2018-04-12 10:23:32,357 WARN L151 SmtUtils]: Spent 654ms on a formula simplification. DAG size of input: 55 DAG size of output 39 [2018-04-12 10:23:36,592 WARN L151 SmtUtils]: Spent 2040ms on a formula simplification. DAG size of input: 68 DAG size of output 52 [2018-04-12 10:23:40,500 WARN L151 SmtUtils]: Spent 610ms on a formula simplification. DAG size of input: 51 DAG size of output 50 [2018-04-12 10:23:41,487 WARN L151 SmtUtils]: Spent 928ms on a formula simplification. DAG size of input: 56 DAG size of output 54 [2018-04-12 10:23:41,750 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-04-12 10:23:41,750 INFO L93 Difference]: Finished difference Result 74 states and 78 transitions. [2018-04-12 10:23:41,750 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 20 states. [2018-04-12 10:23:41,750 INFO L78 Accepts]: Start accepts. Automaton has 31 states. Word has length 37 [2018-04-12 10:23:41,750 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-04-12 10:23:41,750 INFO L225 Difference]: With dead ends: 74 [2018-04-12 10:23:41,750 INFO L226 Difference]: Without dead ends: 0 [2018-04-12 10:23:41,751 INFO L567 BasicCegarLoop]: 0 DeclaredPredicates, 71 GetRequests, 25 SyntacticMatches, 0 SemanticMatches, 46 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 256 ImplicationChecksByTransitivity, 7.5s TimeCoverageRelationStatistics Valid=248, Invalid=2007, Unknown=1, NotChecked=0, Total=2256 [2018-04-12 10:23:41,751 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 0 states. [2018-04-12 10:23:41,751 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 0 to 0. [2018-04-12 10:23:41,751 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 0 states. [2018-04-12 10:23:41,751 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 0 states to 0 states and 0 transitions. [2018-04-12 10:23:41,751 INFO L78 Accepts]: Start accepts. Automaton has 0 states and 0 transitions. Word has length 37 [2018-04-12 10:23:41,751 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-04-12 10:23:41,751 INFO L459 AbstractCegarLoop]: Abstraction has 0 states and 0 transitions. [2018-04-12 10:23:41,751 INFO L460 AbstractCegarLoop]: Interpolant automaton has 31 states. [2018-04-12 10:23:41,751 INFO L276 IsEmpty]: Start isEmpty. Operand 0 states and 0 transitions. [2018-04-12 10:23:41,751 INFO L282 IsEmpty]: Finished isEmpty. No accepting run. [2018-04-12 10:23:41,754 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 12.04 10:23:41 BoogieIcfgContainer [2018-04-12 10:23:41,754 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2018-04-12 10:23:41,755 INFO L168 Benchmark]: Toolchain (without parser) took 18486.91 ms. Allocated memory was 399.0 MB in the beginning and 756.0 MB in the end (delta: 357.0 MB). Free memory was 332.1 MB in the beginning and 649.1 MB in the end (delta: -317.0 MB). Peak memory consumption was 40.0 MB. Max. memory is 5.3 GB. [2018-04-12 10:23:41,755 INFO L168 Benchmark]: CDTParser took 0.14 ms. Allocated memory is still 399.0 MB. Free memory is still 359.4 MB. There was no memory consumed. Max. memory is 5.3 GB. [2018-04-12 10:23:41,756 INFO L168 Benchmark]: CACSL2BoogieTranslator took 228.08 ms. Allocated memory is still 399.0 MB. Free memory was 332.1 MB in the beginning and 307.0 MB in the end (delta: 25.1 MB). Peak memory consumption was 25.1 MB. Max. memory is 5.3 GB. [2018-04-12 10:23:41,756 INFO L168 Benchmark]: Boogie Preprocessor took 37.53 ms. Allocated memory is still 399.0 MB. Free memory was 307.0 MB in the beginning and 305.7 MB in the end (delta: 1.3 MB). Peak memory consumption was 1.3 MB. Max. memory is 5.3 GB. [2018-04-12 10:23:41,756 INFO L168 Benchmark]: RCFGBuilder took 382.05 ms. Allocated memory was 399.0 MB in the beginning and 606.1 MB in the end (delta: 207.1 MB). Free memory was 304.3 MB in the beginning and 541.6 MB in the end (delta: -237.2 MB). Peak memory consumption was 23.3 MB. Max. memory is 5.3 GB. [2018-04-12 10:23:41,756 INFO L168 Benchmark]: TraceAbstraction took 17836.99 ms. Allocated memory was 606.1 MB in the beginning and 756.0 MB in the end (delta: 149.9 MB). Free memory was 541.6 MB in the beginning and 649.1 MB in the end (delta: -107.5 MB). Peak memory consumption was 42.4 MB. Max. memory is 5.3 GB. [2018-04-12 10:23:41,758 INFO L344 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.14 ms. Allocated memory is still 399.0 MB. Free memory is still 359.4 MB. There was no memory consumed. Max. memory is 5.3 GB. * CACSL2BoogieTranslator took 228.08 ms. Allocated memory is still 399.0 MB. Free memory was 332.1 MB in the beginning and 307.0 MB in the end (delta: 25.1 MB). Peak memory consumption was 25.1 MB. Max. memory is 5.3 GB. * Boogie Preprocessor took 37.53 ms. Allocated memory is still 399.0 MB. Free memory was 307.0 MB in the beginning and 305.7 MB in the end (delta: 1.3 MB). Peak memory consumption was 1.3 MB. Max. memory is 5.3 GB. * RCFGBuilder took 382.05 ms. Allocated memory was 399.0 MB in the beginning and 606.1 MB in the end (delta: 207.1 MB). Free memory was 304.3 MB in the beginning and 541.6 MB in the end (delta: -237.2 MB). Peak memory consumption was 23.3 MB. Max. memory is 5.3 GB. * TraceAbstraction took 17836.99 ms. Allocated memory was 606.1 MB in the beginning and 756.0 MB in the end (delta: 149.9 MB). Free memory was 541.6 MB in the beginning and 649.1 MB in the end (delta: -107.5 MB). Peak memory consumption was 42.4 MB. Max. memory is 5.3 GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - PositiveResult [Line: 566]: pointer dereference always succeeds For all program executions holds that pointer dereference always succeeds at this location - PositiveResult [Line: 565]: pointer dereference always succeeds For all program executions holds that pointer dereference always succeeds at this location - PositiveResult [Line: 566]: pointer dereference always succeeds For all program executions holds that pointer dereference always succeeds at this location - PositiveResult [Line: 554]: all allocated memory was freed For all program executions holds that all allocated memory was freed at this location - PositiveResult [Line: 565]: 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: 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: 549]: pointer dereference always succeeds For all program executions holds that pointer dereference always succeeds at this location - AllSpecificationsHoldResult: All specifications hold 9 specifications checked. All of them hold - StatisticsResult: Ultimate Automizer benchmark data CFG has 6 procedures, 51 locations, 9 error locations. SAFE Result, 17.8s OverallTime, 14 OverallIterations, 3 TraceHistogramMax, 14.3s AutomataDifference, 0.0s DeadEndRemovalTime, 0.0s HoareAnnotationTime, HoareTripleCheckerStatistics: 422 SDtfs, 824 SDslu, 2281 SDs, 0 SdLazy, 2269 SolverSat, 185 SolverUnsat, 2 SolverUnknown, 0 SolverNotchecked, 4.4s Time, PredicateUnifierStatistics: 0 DeclaredPredicates, 336 GetRequests, 96 SyntacticMatches, 0 SemanticMatches, 240 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1092 ImplicationChecksByTransitivity, 11.8s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=93occurred in iteration=11, 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, 14 MinimizatonAttempts, 64 StatesRemovedByMinimization, 7 NontrivialMinimizations, HoareAnnotationStatistics: No data available, RefinementEngineStatistics: TraceCheckStatistics: 0.0s SsaConstructionTime, 0.1s SatisfiabilityAnalysisTime, 2.9s InterpolantComputationTime, 443 NumberOfCodeBlocks, 443 NumberOfCodeBlocksAsserted, 20 NumberOfCheckSat, 425 ConstructedInterpolants, 42 QuantifiedInterpolants, 135602 SizeOfPredicates, 55 NumberOfNonLiveVariables, 622 ConjunctsInSsa, 153 ConjunctsInUnsatCore, 18 InterpolantComputations, 10 PerfectInterpolantSequences, 7/60 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_cstrcspn-alloca_true-valid-memsafety_true-termination.i_svcomp-DerefFreeMemtrack-32bit-Automizer_Camel.epf_AutomizerC.xml/Csv-Benchmark-0-2018-04-12_10-23-41-765.csv Written .csv to /home/ultimate/work/ultimate/releaseScripts/default/UAutomizer-linux/../../../releaseScripts/default/UAutomizer-linux/csv/openbsd_cstrcspn-alloca_true-valid-memsafety_true-termination.i_svcomp-DerefFreeMemtrack-32bit-Automizer_Camel.epf_AutomizerC.xml/Csv-TraceAbstractionBenchmarks-0-2018-04-12_10-23-41-765.csv Received shutdown request...